Federal Capture Intelligence

Top DOI other heavy and civil engineering construction contractors (NAICS 237990)

Contract actions: October 1, 2021 – September 10, 2026 Updated September 11, 2026 Department of the Interior agency guide NAICS 237990 · Other Heavy and Civil Engineering Construction
Latest 12 months
$508.7M
Net obligations · Down $317.3M vs. $825.9M preceding
Prime contractors
126
With positive obligations in the latest 12 months

Research the DOI federal contracting market for other heavy and civil engineering construction under NAICS 237990. Compare top federal contractors and market share, reported contract obligations and spending trends, funding-office attribution, recent award activity, contract types, competition, and procurement methods, and potential recompete research leads.

Contract obligation trends for Other Heavy and Civil Engineering Construction at the Department of the Interior

Federal records show $2.8B in net obligations across 662 awards in Other Heavy and Civil Engineering Construction at the Department of the Interior from Oct 1, 2021 through Sep 10, 2026. This market accounts for 10.8% of $25.8B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations decreased 38.4% from $825.9M to $508.7M. 14 prime contractors accounted for at least 80% of positive obligations in that latest period.

Fiscal-year activity

FY26 is year-to-date through Sep 10, 2026; earlier years show complete fiscal-year totals.

FY26 year-to-date: $441.3M versus $753.2M through the same date in FY25 (−41.4%).
Net obligations · complete fiscal yearNet obligations · FY26 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$533.7M598Complete
FY2023$545.2M593Complete
FY2024$451.7M507Complete
FY2025$820.6M462Complete
FY2026$441.3M408YTD through Sep 10, 2026

Market at a glance

All reported prime contract awards
All-period net obligations
$2.8B
662 awards · 421 prime contractors
Latest 12-month movement
−38.4%
$508.7M vs. $825.9M
Leading eight prime share
70.2%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
10.8% of $25.8B in agency-wide net obligations.
Set-aside share when reported
79.9% of 592 awards with reported set-aside status.
Set-aside reporting
473 set aside · 119 no set-aside · 70 not reported

What changed in the last 12 months?

Sep 11, 2025–Sep 10, 2026, compared with Sep 11, 2024–Sep 10, 2025.

Competitive shifts

AMES FEDERAL CONTRACTING GROUP LLC lost the most market share
13.5%→0.6%−12.9 percentage points
The contractor now ranks #26 by positive obligations, based on 8 reported actions.
STONE & LIME IMPORTS, INC gained the most market share
0.58%→9.64%+9.1 percentage points
The contractor now ranks #3 by positive obligations, based on 9 reported actions.
KIEWIT INFRASTRUCTURE WEST CO. had the largest decline in reported obligations
$217.2M→$103.9M−$113.3M
The contractor now ranks #2 by positive obligations and accounts for 19.8% of positive obligations, based on 6 reported actions.
17 contractors were first observed in this market during the latest 12 months
$53.3MLatest 12-month obligations
Contractor-level obligations and first-observed dates appear below. “First observed” applies only to this market and the period shown.
View 17 contractors
ContractorLatest 12 months

Buyer demand

Reported obligations through MP-REGIONAL OFFICE decreased
$253.9M→$134.1M−$119.8M
Latest-period activity spans 8 awards across 6 prime contractors.

Market structure

Top-five contractor share decreased
74.0%→62.5%−11.5 percentage points
Contractors outside the top five now account for 37.5% of positive obligations.
View 7 additional material changes

Competitive shifts

BAYSIDE-ERRG JV climbed the most in the contractor rankings
#115→#17Up 98 places
The contractor accounts for 0.97% of positive obligations across 4 reported actions.
ADVANCED AMERICAN CONSTRUCTION, INC. fell the most in the contractor rankings
#14→#95Down 81 places
The contractor accounts for 0.010% of positive obligations across 5 reported actions.
RANDY KINDER EXCAVATING INC was the largest newly observed contractor
$10.5MLatest 12-month obligations
First observed in this market on Mar 23, 2026, the contractor now ranks #9 by positive obligations across 2 reported actions.
BCSS, LLC recorded the largest net deobligation
$4.0M→−$9.1M−$13.1M
The contractor now is unranked by positive obligations, based on 1 reported action.
MCGARY CONSTRUCTION LLC had no reported activity in the latest 12 months
$4.5M→$0No latest-period activity
It previously ranked #23 by positive obligations, based on 2 reported actions.

Award activity

NW CONSTRUCTION, INC received an unusually large obligation action
$120.9MApr 21, 2026 action
Reported under PIID 140R2025C0004 by MP-REGIONAL OFFICE. Award net obligations after the action: $257.3M.
View supporting award

Buyer demand

Reported obligations through BUREAU OF INDIAN AFFAIRS increased
$2.1M→$37.4M+$35.2M
Latest-period activity spans 5 awards across 4 prime contractors.
How these findings are calculated

Findings are selected from matched-period changes in obligations, share, rank, funding offices, concentration, reported set-asides, material award actions, and agency-peer outliers. Related signals are combined, and only material evidence-backed changes are shown. Review the full methodology.

Federal contract obligations by funding office

See how positive obligations were attributed across funding offices in the 12 months ending Sep 10, 2026.

40.2% of positive obligations were attributed to DSC CONTRACTING SERVICES DIVISION. That represents $206.5M, down $109.2M from the preceding 12 months.

Latest 12-month share of positive obligations; the gray segment represents all other reported offices.

  1. DSC CONTRACTING SERVICES DIVISION40.2% · $206.5M · down $109.2M
  2. MP-REGIONAL OFFICE26.1% · $134.1M · down $119.8M
  3. BUREAU OF INDIAN AFFAIRS7.3% · $37.4M · up $35.2M
  4. PACIFIC NW REGION PN 66155.5% · $28.0M · down $19.7M
  5. NATIONAL OPERATIONS CENTER4.6% · $23.8M · up $6.9M
  6. All other reported offices16.4% of positive obligations
View reported office rankings, comparisons, and evidence

USAspending assigns each award to a funding office. That office may differ from the requiring activity, program office, contracting office, individual buyer, or actual customer.

  1. Reported funding office

    DSC CONTRACTING SERVICES DIVISION

    #1Rank unchanged

    Latest 12 months

    $206.5M

    40.2% of positive obligations

    Versus preceding 12 months

    −$109.2M

    21 active prime contractors · 24 awards

    View office comparison and evidence

    Reported obligations decreased 34.6% from $315.7M to $206.5M. The office’s share of positive obligations moved from 38.2% to 40.2%, a change of +2.0 percentage points.

    The latest period contains 81 actions across 24 awards and 8 newly active prime contractors. The preceding period contained 26 active prime contractors and 26 awards.

  2. Reported funding office

    MP-REGIONAL OFFICE

    #2Rank unchanged

    Latest 12 months

    $134.1M

    26.1% of positive obligations

    Versus preceding 12 months

    −$119.8M

    6 active prime contractors · 8 awards

    View office comparison and evidence

    Reported obligations decreased 47.2% from $253.9M to $134.1M. The office’s share of positive obligations moved from 30.7% to 26.1%, a change of −4.6 percentage points.

    The latest period contains 25 actions across 8 awards and 1 newly active prime contractor. The preceding period contained 10 active prime contractors and 12 awards.

    Leading award-level changes

  3. Reported funding office

    BUREAU OF INDIAN AFFAIRS

    #3Up 13 from #16

    Latest 12 months

    $37.4M

    7.3% of positive obligations

    Versus preceding 12 months

    +$35.2M

    4 active prime contractors · 5 awards

    View office comparison and evidence

    Reported obligations increased 1663.3% from $2.1M to $37.4M. The office’s share of positive obligations moved from 0.26% to 7.3%, a change of +7.0 percentage points.

    The latest period contains 8 actions across 5 awards and 1 newly active prime contractor. The preceding period contained 3 active prime contractors and 3 awards.

    Leading award-level changes

  4. Reported funding office

    PACIFIC NW REGION PN 6615

    #4Rank unchanged

    Latest 12 months

    $28.0M

    5.5% of positive obligations

    Versus preceding 12 months

    −$19.7M

    16 active prime contractors · 18 awards

    View office comparison and evidence

    Reported obligations decreased 41.2% from $47.7M to $28.0M. The office’s share of positive obligations moved from 5.8% to 5.5%, a change of −0.3 percentage points.

    The latest period contains 94 actions across 18 awards and 3 newly active prime contractors. The preceding period contained 16 active prime contractors and 19 awards.

  5. Reported funding office

    NATIONAL OPERATIONS CENTER

    #5Up 1 from #6

    Latest 12 months

    $23.8M

    4.6% of positive obligations

    Versus preceding 12 months

    +$6.9M

    13 active prime contractors · 15 awards

    View office comparison and evidence

    Reported obligations increased 40.5% from $17.0M to $23.8M. The office’s share of positive obligations moved from 2.0% to 4.6%, a change of +2.6 percentage points.

    The latest period contains 29 actions across 15 awards and 9 newly active prime contractors. The preceding period contained 8 active prime contractors and 9 awards.

  6. Reported funding office

    LOWER COLORADO REGIONAL OFFICE

    #6Up 2 from #8

    Latest 12 months

    $15.4M

    3.0% of positive obligations

    Versus preceding 12 months

    +$8.5M

    9 active prime contractors · 11 awards

    View office comparison and evidence

    Reported obligations increased 122.3% from $6.9M to $15.4M. The office’s share of positive obligations moved from 0.84% to 3.0%, a change of +2.1 percentage points.

    The latest period contains 19 actions across 11 awards and 8 newly active prime contractors. The preceding period contained 10 active prime contractors and 12 awards.

  7. Reported funding office

    UPPER COLORADO REGIONAL OFFICE

    #7Up 6 from #13

    Latest 12 months

    $11.9M

    2.3% of positive obligations

    Versus preceding 12 months

    +$8.4M

    2 active prime contractors · 2 awards

    View office comparison and evidence

    Reported obligations increased 244.6% from $3.4M to $11.9M. The office’s share of positive obligations moved from 0.42% to 2.3%, a change of +1.9 percentage points.

    The latest period contains 4 actions across 2 awards. The preceding period contained 3 active prime contractors and 4 awards.

  8. Reported funding office

    MWR OHIO(64000)

    #8Up 16 from #24

    Latest 12 months

    $11.1M

    2.1% of positive obligations

    Versus preceding 12 months

    +$10.2M

    6 active prime contractors · 8 awards

    View office comparison and evidence

    Reported obligations increased 1146.7% from $888K to $11.1M. The office’s share of positive obligations moved from 0.11% to 2.1%, a change of +2.0 percentage points.

    The latest period contains 8 actions across 8 awards and 4 newly active prime contractors. The preceding period contained 2 active prime contractors and 2 awards.

  9. Reported funding office

    FWS PACIFIC SOUTHWEST REGIONAL OFFI

    #9Down 2 from #7

    Latest 12 months

    $10.3M

    2.0% of positive obligations

    Versus preceding 12 months

    +$2.1M

    6 active prime contractors · 7 awards

    View office comparison and evidence

    Reported obligations increased 26.3% from $8.1M to $10.3M. The office’s share of positive obligations moved from 0.98% to 2.0%, a change of +1.0 percentage points.

    The latest period contains 16 actions across 7 awards and 1 newly active prime contractor. The preceding period contained 7 active prime contractors and 7 awards.

  10. Reported funding office

    GREAT PLAINS REGIONAL OFFICE

    #10Down 5 from #5

    Latest 12 months

    $4.8M

    0.94% of positive obligations

    Versus preceding 12 months

    −$15.7M

    9 active prime contractors · 12 awards

    View office comparison and evidence

    Reported obligations decreased 76.4% from $20.6M to $4.8M. The office’s share of positive obligations moved from 2.5% to 0.94%, a change of −1.6 percentage points.

    The latest period contains 31 actions across 12 awards. The preceding period contained 13 active prime contractors and 15 awards.

  11. Reported funding office

    PROVO AREA OFFICE

    #12Down 9 from #3

    Latest 12 months

    $3.3M

    0.64% of positive obligations

    Versus preceding 12 months

    −$108.7M

    2 active prime contractors · 2 awards

    View office comparison and evidence

    Reported obligations decreased 97.0% from $112.0M to $3.3M. The office’s share of positive obligations moved from 13.6% to 0.64%, a change of −12.9 percentage points.

    The latest period contains 10 actions across 2 awards. The preceding period contained 2 active prime contractors and 2 awards.

Contract types, competition, and procurement methods

From Sep 11, 2025 through Sep 10, 2026, 151 awards had positive obligations totaling $527.3M. Negotiated Proposal/Quote was the leading reported procedure, accounting for 43.6% of positive obligations. Awards with a reported parent IDV accounted for 1.4%.

Leading award type
98.2%
Definitive Contract
Leading reported procedure
43.6%
Negotiated Proposal/Quote
Reported parent IDV
1.4%
of positive obligations had a reported parent IDV
Median reported offers
3
147 of 151 awards reported offers

Buying method changes

Compared with Sep 11, 2024–Sep 10, 2025. Based on 151 current awards and 135 preceding awards with positive net obligations.

Negotiated Proposal/Quote obligation share
43.6%
Down from 94.8% in the preceding period
How to read these changes

Directional color and the Up or Down labels show historical movement only. Green does not mean favorable and red does not mean unfavorable; neither predicts a future procurement method.

Same-NAICS comparison

Compared with the NAICS 237990 peer median, parent-IDV obligation share is 8.1 percentage points lower, reported full-and-open obligation share is 24.6 percentage points higher, delivery-order obligation share is 7.3 percentage points lower, and median positive award obligations are 27.0% lower.

MeasureThis marketPeer medianDifference
Parent-IDV obligation share1.4%9.5%-8.1 pts
Reported full-and-open obligation share30.2%5.6%+24.6 pts
Delivery-order obligation share1.4%8.7%-7.3 pts
Median positive award obligations$377K$516K-27.0%
Peer cohort and comparison limits

The peer median gives each of the 4 eligible agency markets equal weight. The included agency markets are:

Agency mission, scale, and acquisition context can differ. Peer position does not establish market attractiveness or predict a future procurement method.

View buying-method details and data coverage

Award types

Reported valueAwardsPositive obligationsShare
Definitive Contract(D)119$517.5M98.2%
Delivery Order(C)8$7.6M1.4%
Purchase Order(B)24$2.2M0.41%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
IDC(B)8$7.6M1.4%
Not reported143$519.7M98.6%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Single Award(S)4$7.0M1.3%
Multiple Award(M)4$600K0.11%
Not reported143$519.7M98.6%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Negotiated Proposal/Quote(NP)50$230.0M43.6%
Np(NEGOTIATED PROPOSAL/QUOTE)24$222.1M42.1%
Sb(SEALED BID)7$33.4M6.3%
Sealed Bid(SB)11$19.7M3.7%
Only One Source(SSS)13$15.9M3.0%
Simplified Acquisition(SP1)31$3.4M0.65%
Other reported values15$2.8M0.53%

Extent competed

Reported valueAwardsPositive obligationsShare
A(FULL AND OPEN COMPETITION)11$177.7M33.7%
Full and Open Competition(A)20$159.2M30.2%
Full and Open Competition After Exclusion of Sources(D)45$91.0M17.3%
D(FULL AND OPEN COMPETITION AFTER EXCLUSION OF SOURCES)21$77.9M14.8%
Not Available for Competition(B)10$15.8M3.0%
Competed Under SAP(F)26$3.3M0.62%
Other reported values18$2.4M0.46%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Fair Opportunity Given(FAIR)1$516K0.10%
Competitive Set Aside(CSA)3$84K0.020%
Not reported147$526.7M99.9%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
Authorized by Statute (FAR 6.302-5(A)(2)(I))(OTH)10$15.8M3.0%
Urgency (FAR 6.302-2)(URG)2$426K0.080%
SAP Non-Competition (FAR 13)(SP2)5$187K0.040%
Only One Source-Other (FAR 6.302-1 Other)(ONE)3$162K0.030%
Not reported131$510.7M96.9%

Contract pricing types

Reported valueAwardsPositive obligationsShare
Firm Fixed Price(J)109$269.6M51.1%
J(FIRM FIXED PRICE)42$257.7M48.9%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Construction of Other Non-Building Facilities(Y1PZ)21$180.7M34.3%
Repair or Alteration of Dams(Z2KA)21$156.8M29.7%
Construction of Water Supply Facilities(Y1NE)2$34.9M6.6%
Repair or Alteration of Canals(Z2KB)7$29.1M5.5%
Repair or Alteration of Dredging Facilities(Z2KF)1$12.6M2.4%
Installation of Equipment- Valves(N048)1$11.9M2.3%
Other reported values98$101.2M19.2%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
National Park Service(1443)44$225.9M42.8%
Bureau of Reclamation(1425)43$211.4M40.1%
Bureau of Indian Affairs and Bureau of Indian Education(1450)4$37.5M7.1%
Bureau of Land Management(1422)29$31.0M5.9%
U.S. Fish and Wildlife Service(1448)23$21.2M4.0%
Office of Surface Mining, Reclamation and Enforcement(1438)6$195K0.040%
Other reported values2$110K0.021%

Awarding offices

Reported valueAwardsPositive obligationsShare
Dsc Contracting Services Division(140P20)19$205.7M39.0%
Mp-Regional Office(140R20)7$134.1M25.4%
Bureau of Indian Affairs(140A16)3$37.5M7.1%
Pacific Nw Region Pn 6615(140R10)14$34.1M6.5%
National Operations Center(140L06)11$23.8M4.5%
Upper Colorado Regional Office(140R40)5$20.1M3.8%
Other reported values92$71.8M13.6%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
140R3020D0010(1425)3$6.3M1.2%
140R3025D0005(1425)1$677K0.13%
140L0625D0002(1422)1$516K0.10%
140L4320D0018(1422)1$74K0.010%
140L0625D0005(1422)1$5K0%
140L0625D0006(1422)1$5K0%
Not reported143$519.7M98.6%

Offers, award size, and timing

Median reported offers
3 median
147 reported · 4 not reported
Positive award obligations
$377K median
$55K–$2.2M middle 50%
Reported performance period
372 days (~12 months) median
151 reported · 0 not reported

Calculations group latest-period actions by award, retain awards with positive net obligations for share denominators, and use each award's latest reported USAspending procurement fields as of Sep 10, 2026. Blank competition, pricing, PSC, or parent-IDV values remain not reported; they are not inferred. Offer counts must be positive and below the FPDS 999 placeholder. Awarding organizations can differ from the funding agency that defines this page.

Top federal contractors

Latest 12-month market share, concentration, and complete prime contractor rankings across the period shown.

Prime contractor concentration
14 of 126prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
24.0%of positive obligations in the last 12 months
Leading four prime contractors
58.8%of positive obligations in the last 12 months
Leading eight prime contractors
70.2%of positive obligations in the last 12 months

Based on $524.6M in positive obligations during the 12 months ending Sep 10, 2026. Individual shares and movement appear in the searchable rankings below. Movement compares with Sep 11, 2024–Sep 10, 2025.

Last 12mo obligation volume: Highest positive obligations first; net deobligations follow by magnitude; contractors with no activity in the last 12 months follow by all-period obligations. Ranks use the complete contractor list and remain fixed when search narrows the results.

15 leading contractors
  1. #1

    Last 12mo obligations

    $126.0M

    24.0%

    Dollar movement

    −$99.9M

    vs. prior 12 months

    Last 12mo awards

    5 awards

    17 actions

    Historical and award details for NW CONSTRUCTION, INC
    Obligations: prior → latest
    $225.9M → $126.0M
    −44.2%
    Share: prior → latest
    27.2% → 24.0%
    −3.2 percentage points
    All-period obligations
    $631.1M
    22.5% of all-period positive obligations · 8 awards
    Recorded activity
    Since Oct 19, 2021
    through Sep 3, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside55
    Not reported00
    Reported small business33
    All-period set-aside types
    • 3 · Total small business
  2. #2

    Last 12mo obligations

    $103.9M

    19.8%

    Dollar movement

    −$113.3M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    6 actions

    Historical and award details for KIEWIT INFRASTRUCTURE WEST CO.
    Obligations: prior → latest
    $217.2M → $103.9M
    −52.2%
    Share: prior → latest
    26.1% → 19.8%
    −6.3 percentage points
    All-period obligations
    $321.2M
    11.5% of all-period positive obligations · 2 awards
    Recorded activity
    Since May 16, 2025
    through Aug 12, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside21
    Not reported00
    Reported small business00
    All-period set-aside types

    None reported.

  3. #3

    Last 12mo obligations

    $50.6M

    9.6%

    Dollar movement

    +$45.8M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    9 actions

    Historical and award details for STONE & LIME IMPORTS, INC
    Obligations: prior → latest
    $4.8M → $50.6M
    +953.1%
    Share: prior → latest
    0.58% → 9.6%
    +9.1 percentage points
    All-period obligations
    $64.9M
    2.3% of all-period positive obligations · 4 awards
    Recorded activity
    Since Nov 8, 2022
    through Aug 12, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside11
    Not reported00
    Reported small business21
    All-period set-aside types
    • 1 · Total small business
    • 1 · WOSB sole source
  4. #4

    Last 12mo obligations

    $28.1M

    5.4%

    Dollar movement

    +$28.1M

    vs. prior 12 months

    Last 12mo awards

    3 awards

    3 actions

    Historical and award details for MCMILLEN, INC.
    Obligations: prior → latest
    $0 → $28.1M
    Not comparable
    Share: prior → latest
    0% → 5.4%
    +5.4 percentage points
    All-period obligations
    $34.5M
    1.2% of all-period positive obligations · 3 awards
    Recorded activity
    Since Jan 12, 2023
    through Jul 2, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside31
    Not reported00
    Reported small business00
    All-period set-aside types

    None reported.

  5. #5

    Last 12mo obligations

    $19.0M

    3.6%

    Dollar movement

    +$19.0M

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for A&R PACIFIC-GARNEY FEDERAL JV II
    Obligations: prior → latest
    $0 → $19.0M
    Not comparable
    Share: prior → latest
    0% → 3.6%
    +3.6 percentage points
    All-period obligations
    $19.0M
    0.68% of all-period positive obligations · 1 award
    Recorded activity
    Since Sep 24, 2025
    through Sep 24, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  6. #6

    Last 12mo obligations

    $15.9M

    3.0%

    Dollar movement

    +$15.9M

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for TEHAMA TECHNICAL SERVICES, LLC
    Obligations: prior → latest
    $0 → $15.9M
    Not comparable
    Share: prior → latest
    0% → 3.0%
    +3.0 percentage points
    All-period obligations
    $15.9M
    0.57% of all-period positive obligations · 1 award
    Recorded activity
    Since Aug 27, 2026
    through Aug 27, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Indian small business
  7. #7

    Last 12mo obligations

    $12.6M

    2.4%

    Dollar movement

    −$3.8M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    27 actions

    Historical and award details for GARCO CONSTRUCTION, INC.
    Obligations: prior → latest
    $16.4M → $12.6M
    −23.2%
    Share: prior → latest
    2.0% → 2.4%
    +0.4 percentage points
    All-period obligations
    $81.8M
    2.9% of all-period positive obligations · 2 awards
    Recorded activity
    Since Oct 26, 2021
    through Sep 2, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside22
    Not reported00
    Reported small business00
    All-period set-aside types

    None reported.

  8. #8

    Last 12mo obligations

    $11.9M

    2.3%

    Dollar movement

    +$8.9M

    vs. prior 12 months

    Last 12mo awards

    1 award

    3 actions

    Historical and award details for UNICO MECHANICAL CORP.
    Obligations: prior → latest
    $3.0M → $11.9M
    +296.3%
    Share: prior → latest
    0.36% → 2.3%
    +1.9 percentage points
    All-period obligations
    $14.9M
    0.53% of all-period positive obligations · 2 awards
    Recorded activity
    Since Aug 21, 2023
    through Aug 25, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside11
    Not reported00
    Reported small business11
    All-period set-aside types
    • 1 · Total small business
  9. #9

    Last 12mo obligations

    $10.5M

    2.0%

    Dollar movement

    +$10.5M

    vs. prior 12 months

    Last 12mo awards

    1 award

    2 actions

    Historical and award details for RANDY KINDER EXCAVATING INC
    Obligations: prior → latest
    $0 → $10.5M
    Not comparable
    Share: prior → latest
    0% → 2.0%
    +2.0 percentage points
    All-period obligations
    $10.5M
    0.37% of all-period positive obligations · 1 award
    Recorded activity
    Since Mar 23, 2026
    through May 12, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  10. #10

    Last 12mo obligations

    $10.3M

    2.0%

    Dollar movement

    +$10.3M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    5 actions

    Historical and award details for STGP MALCOLM JV LLC
    Obligations: prior → latest
    $0 → $10.3M
    Not comparable
    Share: prior → latest
    0% → 2.0%
    +2.0 percentage points
    All-period obligations
    $10.3M
    0.37% of all-period positive obligations · 2 awards
    Recorded activity
    Since Sep 12, 2025
    through Mar 31, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside20
    Reported no set-aside00
    Not reported00
    Reported small business20
    All-period set-aside types
    • 2 · Total small business
  11. #11

    Last 12mo obligations

    $9.3M

    1.8%

    Dollar movement

    +$8.6M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    4 actions

    Historical and award details for DOFINE SPRINKLER REBUILDERS INC
    Obligations: prior → latest
    $670K → $9.3M
    +1281.1%
    Share: prior → latest
    0.080% → 1.8%
    +1.7 percentage points
    All-period obligations
    $11.4M
    0.41% of all-period positive obligations · 7 awards
    Recorded activity
    Since Feb 23, 2023
    through Jun 10, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside13
    Reported no set-aside10
    Not reported00
    Reported small business23
    All-period set-aside types
    • 3 · 8(a) sole source
    • 3 · Total small business
  12. #12

    Last 12mo obligations

    $8.9M

    1.7%

    Dollar movement

    +$8.9M

    vs. prior 12 months

    Last 12mo awards

    1 award

    3 actions

    Historical and award details for BURKE ELECTRIC, L.L.C.
    Obligations: prior → latest
    $0 → $8.9M
    Not comparable
    Share: prior → latest
    0% → 1.7%
    +1.7 percentage points
    All-period obligations
    $8.9M
    0.32% of all-period positive obligations · 1 award
    Recorded activity
    Since Mar 5, 2026
    through Aug 27, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  13. #13

    Last 12mo obligations

    $7.4M

    1.4%

    Dollar movement

    +$7.4M

    vs. prior 12 months

    Last 12mo awards

    1 award

    2 actions

    Historical and award details for PALOUSE POWER LLC
    Obligations: prior → latest
    $0 → $7.4M
    Not comparable
    Share: prior → latest
    0% → 1.4%
    +1.4 percentage points
    All-period obligations
    $7.4M
    0.27% of all-period positive obligations · 1 award
    Recorded activity
    Since Mar 9, 2026
    through Mar 24, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  14. #14

    Last 12mo obligations

    $6.8M

    1.3%

    Dollar movement

    −$6.3M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    4 actions

    Historical and award details for SNC TALLIMAT, LLC
    Obligations: prior → latest
    $13.2M → $6.8M
    −48.0%
    Share: prior → latest
    1.6% → 1.3%
    −0.3 percentage points
    All-period obligations
    $20.0M
    0.71% of all-period positive obligations · 2 awards
    Recorded activity
    Since Jan 31, 2025
    through Aug 28, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside21
    Reported no set-aside00
    Not reported00
    Reported small business21
    All-period set-aside types
    • 1 · Indian small business
    • 1 · Total small business
  15. #15

    Last 12mo obligations

    $6.3M

    1.2%

    Dollar movement

    +$2.7M

    vs. prior 12 months

    Last 12mo awards

    3 awards

    9 actions

    Historical and award details for MARINE DIVING SOLUTIONS, LLC.
    Obligations: prior → latest
    $3.6M → $6.3M
    +76.6%
    Share: prior → latest
    0.43% → 1.2%
    +0.8 percentage points
    All-period obligations
    $23.8M
    0.85% of all-period positive obligations · 6 awards
    Recorded activity
    Since Oct 22, 2021
    through Aug 25, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported31
    Reported small business31
    All-period set-aside types

    None reported.

Potential federal contract recompetes

Investigate potential recompetes surfaced by near-term end dates, award value, and recent contract changes.

NW CONSTRUCTION, INC

EO 14398, BF SISK SAFETY OF DAMS (SOD) MODIFICATIONS, PHASE I, THIS PHASE INCLUDES CONSTRUCTION OF SHEAR KEYS, STABILITY BERMS, AND SPILLWAY MODIFICATION. PROJECT ADDRESSES ISSUES WITH THE SELECT FOUNDATION MATERIALS THAT DAM WAS BUILT UPON AND WILL

The reported potential end date moved later 2 times in the latest 12 months.

Performance period

93.4%

As of Sep 10, 2026Potential end Dec 31, 2026

Current award value as a share of potential value

100.0%

$139.3M current$139.3M potential
Supporting data

Reported performance starts Apr 27, 2022.

No later potential end date is reported; current and potential end dates are both Dec 31, 2026.

$139.3M is obligated against $139.3M in current reported award value (100.0%).

Reported potential end dates: Jun 5, 2025 → Jan 31, 2025 → Jun 30, 2025 → Dec 31, 2025 → Dec 31, 2026.

Obligations are compared with current reported award value, not treated as a contract ceiling.

PIID 140R2022C0007

GARCO CONSTRUCTION, INC.

CLE ELU DAM FISH PASSAGE FACILITY, JUVENILE FACILITY-INTAKE STRUCTURE, HELIX, AND GATE CHAMBER, YAKIMA PROJECT, WASHINGTON - REA CL-140 P00136 SCHEDULE EXTENSION BOND COSTS

A modification describes an extension; the latest reported potential end date is October 16, 2026.

Performance period

98.8%

As of Sep 10, 2026Potential end Oct 16, 2026

Current award value as a share of potential value

100.0%

$88.4M current$88.4M potential
Supporting data

Reported performance starts Sep 19, 2018.

Current performance is reported through Mar 9, 2026.

$88.4M is obligated against $88.4M in current reported award value (100.0%).

Reported potential end dates: Nov 23, 2023 → Aug 28, 2024 → Oct 16, 2024 → Dec 4, 2024 → Oct 16, 2024 → Oct 16, 2026.

CLE ELU DAM FISH PASSAGE FACILITY, JUVENILE FACILITY-INTAKE STRUCTURE, HELIX, AND GATE CHAMBER, YAKIMA PROJECT, WASHINGTON - REA CL-140 P00136 SCHEDULE EXTENSION BOND COSTS

Obligations are compared with current reported award value, not treated as a contract ceiling.

PIID 140R1018C0025

KOMADA LLC

OGLALA DAM REMEDIATION PROJECT. SEE SECTION J FOR LIST OF ATTACHMENTS.

The reported potential end date moved later 2 times in the latest 12 months.

Performance period

90.7%

As of Sep 10, 2026Potential end Dec 31, 2026

Current award value as a share of potential value

100.0%

$67.0M current$67.0M potential
Supporting data

Reported performance starts Sep 12, 2023.

No later potential end date is reported; current and potential end dates are both Dec 31, 2026.

$67.0M is obligated against $67.0M in current reported award value (100.0%).

Reported potential end dates: Dec 25, 2024 → Nov 15, 2025 → Nov 30, 2025 → Apr 30, 2026 → Jun 30, 2026 → Dec 31, 2026.

Obligations are compared with current reported award value, not treated as a contract ceiling.

PIID 140A1623C0014

CIANBRO CORPORATION

NAMA 318722 REHABILITATE SEAWALLS AND SHORELINE DESIGN-BUILD MODIFICATION 01 - REVISE SPEC 01 31 00, SECTION 1.6 PROJECT FILE SHARING SYSTEM, AND ADJUST POP TO NTP

The reported potential end date is Feb 1, 2027. Current award value is 100.0% of reported potential value ($112.8M of $112.8M).

Performance period

88.5%

As of Sep 10, 2026Potential end Feb 1, 2027

Current award value as a share of potential value

100.0%

$112.8M current$112.8M potential
Supporting data

Reported performance starts Aug 29, 2023.

No later potential end date is reported; current and potential end dates are both Feb 1, 2027.

$112.8M is obligated against $112.8M in current reported award value (100.0%).

Reported potential end dates: Feb 9, 2027 → Feb 1, 2027.

Obligations are compared with current reported award value, not treated as a contract ceiling.

PIID 140P2023C0037

COASTAL CONSTRUCTION GROUP, LLC

SLBE 318729 - REHABILITATION OF MANITOU ISLANDS, AT SLEEPING BEAR DUNES NATIONAL LAKESHORE, MI

$48.8M is obligated on an award with a reported potential end date of July 15, 2027.

Performance period

69.9%

As of Sep 10, 2026Potential end Jul 15, 2027

Current award value as a share of potential value

100.0%

$48.8M current$48.8M potential
Supporting data

Reported performance starts Sep 26, 2024.

No later potential end date is reported; current and potential end dates are both Jul 15, 2027.

$48.8M is obligated against $48.8M in current reported award value (100.0%).

Reported potential end dates: Dec 31, 2026 → Jul 15, 2027.

Obligations are compared with current reported award value, not treated as a contract ceiling.

PIID 140P2024C0088

STONE & LIME IMPORTS, INC

DRTO 244370/244372 - REPAIRS TO FORT JEFFERSON COUNTERSCARP & MAINTENANCE DREDGING AT DRY TORTUGAS NATIONAL PARK

The reported potential end date moved later 4 times in the latest 12 months.

Performance period

67.9%

As of Sep 10, 2026Potential end Jan 31, 2028

Current award value as a share of potential value

100.0%

$26.3M current$26.3M potential
Supporting data

Reported performance starts Oct 2, 2023.

No later potential end date is reported; current and potential end dates are both Jan 31, 2028.

$26.3M is obligated against $26.3M in current reported award value (100.0%).

Reported potential end dates: Aug 7, 2025 → Aug 23, 2025 → Apr 22, 2026 → Jun 16, 2026 → Jun 25, 2026 → Jul 20, 2026 → Nov 4, 2027 → Jan 31, 2028.

Obligations are compared with current reported award value, not treated as a contract ceiling.

PIID 140P2023C0121

These are research leads, not confirmed recompetes. USAspending records through Sep 10, 2026; reported dates and values can change through later modifications.

Recent federal contract award activity

Recent contract actions with unusually large obligation changes or meaningful shifts in contractor and funding-office activity.

Base award

This action

+$103.3M

KIEWIT INFRASTRUCTURE WEST CO.

DSC CONTRACTING SERVICES DIVISION

YOSE 215363 - REPLACE TUOLUMNE MEADOWS WASTEWATER TREATMENT PLANT, AT YOSEMITE NATIONAL PARK IN CALIFORNIA.

Why it stands out

A new award added obligations despite weaker contractor activity.

The action represented 19.7% of the market’s latest 12-month positive obligations while the contractor’s obligations fell $113.3M overall.

Award net obligations
$103.3M
Share of 12-month positive obligations
19.7%
Supporting data
Prime contractor
#2 · 19.8% share
$113.3M net decline despite this positive action
Funding office
#1 · 40.2% attributed share
$109.2M net decline despite this positive action
PIID 140P2026C0032
Base award

This action

+$36.8M

STONE & LIME IMPORTS, INC

DSC CONTRACTING SERVICES DIVISION

CASA 324271, CASTILLO DE SAN MARCOS NATIONAL MONUMENT, REPAIR AND RAISE SEAWALL

Why it stands out

The contractor climbed 17 positions in this market.

It now ranks #3 by positive obligations over the latest 12 months.

Award net obligations
$38.0M
Share of 12-month positive obligations
7.0%
Supporting data
Prime contractor
#3 · 9.6% share
up 17 ranks · +9.1 percentage points · $45.8M net increase; action accounted for 80.3%
Funding office
#1 · 40.2% attributed share
$109.2M net decline despite this positive action
Related:Largest share gain
PIID 140P2026C0012
Modification

This action

+$120.9M

NW CONSTRUCTION, INC

MP-REGIONAL OFFICE

THE WORK REQUIRED IS FOR PHASE II OF B.F. SISK DAM SOD MODIFICATIONS.

Why it stands out

One action equaled about a fifth of the market’s latest 12-month positive obligations.

The $120.9M action represented 23.0% of the market’s positive obligations over the latest 12 months.

Award net obligations
$257.4M
Share of 12-month positive obligations
23.0%
Supporting data
Prime contractor
#1 · 24.0% share
$99.9M net decline despite this positive action
Funding office
#2 · 26.1% attributed share
$119.8M net decline despite this positive action
Related:Unusually large action
PIID 140R2025C0004 · Mod P00005
Base award

This action

+$21.0M

MCMILLEN, INC.

BUREAU OF INDIAN AFFAIRS

CRIP MC CHECKS AND LATERAL 73 CONSTRUCTION

Why it stands out

The funding office climbed 13 positions in attributed spending.

It now ranks #3 in attributed spending.

Award net obligations
$21.0M
Share of 12-month positive obligations
4.0%
Supporting data
Prime contractor
#4 · 5.4% share
+5.4 percentage points · $28.1M net increase; action accounted for 74.5%
Funding office
#3 · 7.3% attributed share
up 13 ranks · +7.0 percentage points · $35.2M net increase; action accounted for 59.5%
Related:Funding office gain
PIID 140A1626C0006
Base award

This action

+$19.0M

A&R PACIFIC-GARNEY FEDERAL JV II

DSC CONTRACTING SERVICES DIVISION

YOSE 228647 REHABILITATE TUOLUMNE MEADOWS WATER DISTRIBUTION SYSTEM. THIS PROJECT REHABILITATES THE TUOLUMNE MEADOWS WATER DISTRIBUTION SYSTEM THAT PROVIDES AN AVERAGE OF 34,000 GALLONS OF POTABLE WATER A DAY AND A DAILY MAXIMUM OF 73,000 GALLONS

Why it stands out

No activity for this contractor was reported in this market during the preceding 12 months.

The base action placed the contractor #5 in this market by positive obligations over the latest 12 months.

Award net obligations
$19.0M
Share of 12-month positive obligations
3.6%
Supporting data
Prime contractor
#5 · 3.6% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#1 · 40.2% attributed share
$109.2M net decline despite this positive action
PIID 140P2025C0069
Base award

This action

+$15.9M

TEHAMA TECHNICAL SERVICES, LLC

BUREAU OF INDIAN AFFAIRS

BANNOCK PUMPING PLANT REHABILITATION

Why it stands out

No activity for this contractor was reported in this market during the preceding 12 months.

The base action placed the contractor #6 in this market by positive obligations over the latest 12 months.

Award net obligations
$15.9M
Share of 12-month positive obligations
3.0%
Supporting data
Prime contractor
#6 · 3.0% share
Newly active in this market; no actions were reported in the preceding 12 months
PIID 140A1626C0008
View recent award activity by date (10)
  1. AMES FEDERAL CONTRACTING GROUP LLCModification · PIID 140R4025C0005
    Action+$52K
    Award net obligations$115.1M
  2. TERRA SITE CONSTRUCTORS LLCBase award · PIID 140PS126P0044
    Action+$263K
    Award net obligations$263K
  3. NW CONSTRUCTION, INCModification · PIID 140R2025C0004
    Action+$129K
    Award net obligations$257.4M
  4. DRENNON CONSTRUCTION & CONSULTING, INC.Base award · PIID 140L6326P0009
    Action+$539K
    Award net obligations$539K
  5. NELCY CONSTRUCTION CORPBase award · PIID 140FC326P0020
    Action+$51K
    Award net obligations$51K
  6. GARCO CONSTRUCTION, INC.Modification · PIID 140R1023C0008
    Action+$15K
    Award net obligations$57.9M
  7. ALLIANCE STEEL CONSTRUCTION, INC.Modification · PIID 140P2024C0052
    Action+$7K
    Award net obligations$21.2M
  8. GARCO CONSTRUCTION, INC.Modification · PIID 140R1023C0008
    Action+$1.7M
    Award net obligations$57.9M
  9. AMES CONSTRUCTION, INC.Modification · PIID 140R6021C0015
    Action+$1.5M
    Award net obligations$45.0M
  10. PARLIAMENT LLCBase award · PIID 140P5426C0016
    Action+$337K
    Award net obligations$337K

DOI other heavy and civil engineering construction market FAQs

Answers based on reported federal contract data.

Who are the top DOI other heavy and civil engineering construction contractors?

In the 12 months through September 10, 2026, NW CONSTRUCTION, INC, KIEWIT INFRASTRUCTURE WEST CO., and STONE & LIME IMPORTS, INC were the leading DOI other heavy and civil engineering construction prime contractors by positive obligations.

  1. #1

    NW CONSTRUCTION, INC

    $126,039,638 in positive obligations

  2. #2

    KIEWIT INFRASTRUCTURE WEST CO.

    $103,945,938 in positive obligations

  3. #3

    STONE & LIME IMPORTS, INC

    $50,575,017 in positive obligations

Rankings use reported USAspending award data.

Did DOI contract obligations decrease in the other heavy and civil engineering construction market?

Yes. Measured by net prime contract obligations, reported DOI activity in the other heavy and civil engineering construction market decreased 38.4% from $825,934,385 in the preceding 12 months to $508,673,287 in the 12 months through September 10, 2026.

Latest 12 months
$508,673,287
Net prime contract obligations
Preceding 12 months
$825,934,385
Net prime contract obligations
Change
−38.4%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

What recent DOI contract award activity was reported in the other heavy and civil engineering construction market?

Recent DOI contract award activity reported in the other heavy and civil engineering construction market included actions for KIEWIT INFRASTRUCTURE WEST CO., STONE & LIME IMPORTS, INC, and NW CONSTRUCTION, INC during the 12 months through September 10, 2026.

Action obligations are transaction-level amounts, not current award-level obligations.

Which procurement methods were reported for DOI contracts under NAICS 237990?

From September 11, 2025 through September 10, 2026, DOI reported 151 positive-obligation awards for other heavy and civil engineering construction under NAICS 237990. The leading award type was definitive contract. The leading reported procedure was negotiated proposal/quote.

Positive-obligation awards
151
Leading reported procedure
Negotiated Proposal/Quote
43.6% of positive obligations
Leading award type
Definitive Contract
98.2% of positive obligations
Full and open
30.2%
of positive obligations
Reported parent IDV
1.4%
of positive obligations

Percentages use positive obligations as the denominator.

Which DOI other heavy and civil engineering construction awards may warrant recompete research?

6 DOI other heavy and civil engineering construction awards may warrant recompete research based on reported potential-end dates, including awards held by NW CONSTRUCTION, INC, GARCO CONSTRUCTION, INC., and KOMADA LLC.

Research leads, not confirmed recompetes. Dates may change through later modifications.

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Related market research

Complete market indexes:

Same NAICS at other agencies:

Nearby NAICS at this agency:

Markets sharing leading prime records:

Reported obligations include contract actions from October 1, 2021 through September 10, 2026. Set-aside and business-size fields reflect award records, not a contractor's current eligibility.

Review data methodology