Federal Capture Intelligence

Top DOI engineering services contractors (NAICS 541330)

Contract actions: October 1, 2021 – October 23, 2026 Updated October 24, 2026 Department of the Interior agency guide NAICS 541330 · Engineering Services
Latest 12 months
$161.2M
Net obligations · Down $27.5M vs. $188.7M preceding
Prime contractors
162
With positive obligations in the latest 12 months

Research the DOI federal contracting market for engineering services under NAICS 541330. 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 observed contract vehicle usage.

Contract obligation trends for engineering services at the Department of the Interior

Federal records show $1.1B in net obligations across 3,234 awards in engineering services at the Department of the Interior from Oct 1, 2021 through Oct 23, 2026. This market accounts for 4.2% of $26.8B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations decreased 14.6% from $188.7M to $161.2M. 37 prime contractors accounted for at least 80% of positive obligations in that latest period.

Fiscal-year activity

FY27 is year-to-date through Oct 23, 2026; earlier years show complete fiscal-year totals.

FY27 year-to-date: $278K versus $9K through the same date in FY26 (+2924.1%).
Net obligations · complete fiscal yearNet obligations · FY27 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$239.3M1,787Complete
FY2023$296.2M1,816Complete
FY2024$246.0M1,858Complete
FY2025$188.7M1,451Complete
FY2026$160.9M1,251Complete

Market at a glance

All reported prime contract awards
All-period net obligations
$1.1B
3,234 awards · 405 prime contractors
Latest 12-month movement
−14.6%
$161.2M vs. $188.7M
Leading eight prime share
38.6%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
4.2% of $26.8B in agency-wide net obligations.
Set-aside share when reported
52.9% of 348 awards with reported set-aside status.
Set-aside reporting
184 set aside · 164 no set-aside · 2,886 not reported

What changed in the last 12 months?

Oct 24, 2025–Oct 23, 2026, compared with Oct 24, 2024–Oct 23, 2025.

Competitive shifts

FORSGREN ASSOCIATES INC lost the most market share
10.1%→1.1%−9.0 percentage points
The contractor now ranks #23 by positive obligations, based on 12 reported actions.
K.F. DAVIS ENGINEERING, INC fell the most in the contractor rankings
#27→#149Down 122 places
The contractor accounts for 0.010% of positive obligations across 9 reported actions.
10 contractors were first observed in this market during the latest 12 months
$12.5MLatest 12-month obligations
Contractor-level obligations and first-observed dates appear below. “First observed” applies only to this market and the period shown.
View 10 contractors
ContractorLatest 12 months
JACOBS GOVERNMENT SERVICES COMPANY was the largest newly observed contractor
$8.1MLatest 12-month obligations
First observed in this market on May 14, 2026, the contractor now ranks #4 by positive obligations across 5 reported actions.

Buyer demand

Reported obligations through GREAT PLAINS REGIONAL OFFICE decreased
$19.4M→$815K−$18.6M
Latest-period activity spans 7 awards across 7 prime contractors.
View 3 additional material changes

Competitive shifts

BARR ENGINEERING CO. gained the most market share
0.28%→4.35%+4.1 percentage points
The contractor now ranks #5 by positive obligations, based on 14 reported actions.
BLUE ARROW ARCHITECTURE LLC had no reported activity in the latest 12 months
$6.8M→$0No latest-period activity
It previously ranked #7 by positive obligations, based on 4 reported actions.

Buyer demand

Reported obligations through SER EAST MABO(51000) increased
$9K→$3.4M+$3.4M
Latest-period activity spans 25 awards across 11 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 Oct 23, 2026.

35.8% of positive obligations were attributed to DSC CONTRACTING SERVICES DIVISION. That represents $57.6M, down $5.1M from the preceding 12 months.

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

  1. DSC CONTRACTING SERVICES DIVISION35.8% · $57.6M · down $5.1M
  2. BUREAU OF INDIAN AFFAIRS17.4% · $28.1M · up $653K
  3. OFC OF ACQUSITION GRANTS-NATIONAL8.7% · $14.0M · down $1.9M
  4. FACILITIES ADMIN SERVICES (00030)3.9% · $6.2M · up $880K
  5. PACIFIC NW REGION PN 66152.2% · $3.5M · up $429K
  6. All other reported offices32.1% 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

    $57.6M

    35.8% of positive obligations

    Versus preceding 12 months

    −$5.1M

    60 active prime contractors · 243 awards

    View office comparison and evidence

    Reported obligations decreased 8.2% from $62.8M to $57.6M. The office’s share of positive obligations moved from 33.1% to 35.8%, a change of +2.7 percentage points.

    The latest period contains 329 actions across 243 awards and 16 newly active prime contractors. The preceding period contained 56 active prime contractors and 296 awards.

  2. Reported funding office

    BUREAU OF INDIAN AFFAIRS

    #2Rank unchanged

    Latest 12 months

    $28.1M

    17.4% of positive obligations

    Versus preceding 12 months

    +$653K

    19 active prime contractors · 47 awards

    View office comparison and evidence

    Reported obligations increased 2.4% from $27.5M to $28.1M. The office’s share of positive obligations moved from 14.5% to 17.4%, a change of +3.0 percentage points.

    The latest period contains 78 actions across 47 awards and 2 newly active prime contractors. The preceding period contained 20 active prime contractors and 51 awards.

  3. Reported funding office

    OFC OF ACQUSITION GRANTS-NATIONAL

    #3Up 1 from #4

    Latest 12 months

    $14.0M

    8.7% of positive obligations

    Versus preceding 12 months

    −$1.9M

    14 active prime contractors · 23 awards

    View office comparison and evidence

    Reported obligations decreased 12.2% from $15.9M to $14.0M. The office’s share of positive obligations moved from 8.4% to 8.7%, a change of +0.3 percentage points.

    The latest period contains 31 actions across 23 awards and 5 newly active prime contractors. The preceding period contained 14 active prime contractors and 18 awards.

  4. Reported funding office

    FACILITIES ADMIN SERVICES (00030)

    #4Up 1 from #5

    Latest 12 months

    $6.2M

    3.9% of positive obligations

    Versus preceding 12 months

    +$880K

    2 active prime contractors · 2 awards

    View office comparison and evidence

    Reported obligations increased 16.4% from $5.4M to $6.2M. The office’s share of positive obligations moved from 2.8% to 3.9%, a change of +1.0 percentage points.

    The latest period contains 8 actions across 2 awards and 1 newly active prime contractor. The preceding period contained 2 active prime contractors and 2 awards.

  5. Reported funding office

    PACIFIC NW REGION PN 6615

    #5Up 6 from #11

    Latest 12 months

    $3.5M

    2.2% of positive obligations

    Versus preceding 12 months

    +$429K

    6 active prime contractors · 32 awards

    View office comparison and evidence

    Reported obligations increased 13.8% from $3.1M to $3.5M. The office’s share of positive obligations moved from 1.6% to 2.2%, a change of +0.6 percentage points.

    The latest period contains 41 actions across 32 awards and 2 newly active prime contractors. The preceding period contained 6 active prime contractors and 48 awards.

  6. Reported funding office

    NCR REGIONAL CONTRACTING(30000)

    #6Up 2 from #8

    Latest 12 months

    $3.5M

    2.1% of positive obligations

    Versus preceding 12 months

    +$8K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations increased 0.2% from $3.5M to $3.5M. The office’s share of positive obligations moved from 1.8% to 2.1%, a change of +0.3 percentage points.

    The latest period contains 1 action across 1 award. The preceding period contained 2 active prime contractors and 2 awards.

  7. Reported funding office

    SER EAST MABO(51000)

    #7Up 50 from #57

    Latest 12 months

    $3.4M

    2.1% of positive obligations

    Versus preceding 12 months

    +$3.4M

    11 active prime contractors · 25 awards

    View office comparison and evidence

    Reported obligations increased 36786.7% from $9K to $3.4M. The office’s share of positive obligations moved from 0% to 2.1%, a change of +2.1 percentage points.

    The latest period contains 27 actions across 25 awards and 5 newly active prime contractors. The preceding period contained 11 active prime contractors and 28 awards.

    Leading award-level changes

  8. Reported funding office

    NATIONAL OPERATIONS CENTER

    #8Down 1 from #7

    Latest 12 months

    $3.0M

    1.9% of positive obligations

    Versus preceding 12 months

    −$513K

    11 active prime contractors · 32 awards

    View office comparison and evidence

    Reported obligations decreased 14.5% from $3.5M to $3.0M. The office’s share of positive obligations moved from 1.9% to 1.9%, a change of 0.0 percentage points.

    The latest period contains 36 actions across 32 awards and 4 newly active prime contractors. The preceding period contained 11 active prime contractors and 44 awards.

  9. Reported funding office

    FWS MIDWEST REGIONAL OFFICE

    #9Down 3 from #6

    Latest 12 months

    $2.8M

    1.8% of positive obligations

    Versus preceding 12 months

    −$1.2M

    11 active prime contractors · 18 awards

    View office comparison and evidence

    Reported obligations decreased 30.6% from $4.1M to $2.8M. The office’s share of positive obligations moved from 2.1% to 1.8%, a change of −0.4 percentage points.

    The latest period contains 38 actions across 18 awards and 4 newly active prime contractors. The preceding period contained 13 active prime contractors and 26 awards.

  10. Reported funding office

    PWR SF/SEA MABO(85000)

    #10Up 2 from #12

    Latest 12 months

    $2.8M

    1.7% of positive obligations

    Versus preceding 12 months

    −$81K

    19 active prime contractors · 42 awards

    View office comparison and evidence

    Reported obligations decreased 2.8% from $2.9M to $2.8M. The office’s share of positive obligations moved from 1.5% to 1.7%, a change of +0.2 percentage points.

    The latest period contains 57 actions across 42 awards and 5 newly active prime contractors. The preceding period contained 18 active prime contractors and 48 awards.

  11. Reported funding office

    DOI, NPS CONOPS STRATEGIC

    #14Up 27 from #41

    Latest 12 months

    $1.9M

    1.2% of positive obligations

    Versus preceding 12 months

    +$1.6M

    13 active prime contractors · 17 awards

    View office comparison and evidence

    Reported obligations increased 541.0% from $291K to $1.9M. The office’s share of positive obligations moved from 0.15% to 1.2%, a change of +1.0 percentage points.

    The latest period contains 22 actions across 17 awards and 11 newly active prime contractors. The preceding period contained 3 active prime contractors and 3 awards.

  12. Reported funding office

    NAVAJO REGION

    #16Up 17 from #33

    Latest 12 months

    $1.5M

    0.94% of positive obligations

    Versus preceding 12 months

    +$1.1M

    2 active prime contractors · 3 awards

    View office comparison and evidence

    Reported obligations increased 230.4% from $458K to $1.5M. The office’s share of positive obligations moved from 0.24% to 0.94%, a change of +0.7 percentage points.

    The latest period contains 3 actions across 3 awards and 1 newly active prime contractor. The preceding period contained 2 active prime contractors and 3 awards.

  13. Reported funding office

    ROCKY MOUNTAIN REGION

    #17Up 23 from #40

    Latest 12 months

    $1.4M

    0.89% of positive obligations

    Versus preceding 12 months

    +$1.1M

    3 active prime contractors · 3 awards

    View office comparison and evidence

    Reported obligations increased 352.2% from $316K to $1.4M. The office’s share of positive obligations moved from 0.17% to 0.89%, a change of +0.7 percentage points.

    The latest period contains 4 actions across 3 awards and 2 newly active prime contractors. The preceding period contained 5 active prime contractors and 8 awards.

  14. Reported funding office

    UPPER COLORADO REGIONAL OFFICE

    #23New to the positive-obligation ranking

    Latest 12 months

    $1.1M

    0.70% of positive obligations

    Versus preceding 12 months

    +$1.1M

    9 active prime contractors · 13 awards

    View office comparison and evidence

    Reported obligations rose from $0 to $1.1M. The office’s share of positive obligations moved from 0% to 0.70%, a change of +0.7 percentage points.

    The latest period contains 15 actions across 13 awards and 8 newly active prime contractors. The preceding period contained 2 active prime contractors and 2 awards.

  15. Reported funding office

    GREAT PLAINS REGIONAL OFFICE

    #29Down 26 from #3

    Latest 12 months

    $815K

    0.51% of positive obligations

    Versus preceding 12 months

    −$18.6M

    7 active prime contractors · 7 awards

    View office comparison and evidence

    Reported obligations decreased 95.8% from $19.4M to $815K. The office’s share of positive obligations moved from 10.2% to 0.51%, a change of −9.7 percentage points.

    The latest period contains 11 actions across 7 awards and 3 newly active prime contractors. The preceding period contained 5 active prime contractors and 7 awards.

    Leading award-level changes

  16. Reported funding office

    FWS SOUTHEAST REGIONAL OFFICE

    #39Down 29 from #10

    Latest 12 months

    $401K

    0.25% of positive obligations

    Versus preceding 12 months

    −$2.9M

    12 active prime contractors · 15 awards

    View office comparison and evidence

    Reported obligations decreased 87.8% from $3.3M to $401K. The office’s share of positive obligations moved from 1.7% to 0.25%, a change of −1.5 percentage points.

    The latest period contains 27 actions across 15 awards and 2 newly active prime contractors. The preceding period contained 12 active prime contractors and 15 awards.

  17. Reported funding office

    EROS DATA CENTER(00012)

    No positive-obligation rank

    Latest 12 months

    $0

    0% of positive obligations

    Versus preceding 12 months

    −$1.8M

    0 active prime contractors · 0 awards

    View office comparison and evidence

    Reported obligations decreased 100.0% from $1.8M to $0. The office’s share of positive obligations moved from 0.95% to 0%, a change of −0.9 percentage points.

    The latest period contains 0 actions across 0 awards. The preceding period contained 2 active prime contractors and 2 awards.

Contract types, competition, and procurement methods

From Oct 24, 2025 through Oct 23, 2026, 463 awards had positive obligations totaling $169.0M. Mafo was the leading reported procedure, accounting for 38.9% of positive obligations. Awards with a reported parent IDV accounted for 95.0%. Reported awards used contract vehicles such as IA-NMAAEC, OASIS, and TACCOM II.

Leading award type
93.8%
Delivery Order
Leading reported procedure
38.9%
Mafo
Reported parent IDV
95.0%
of positive obligations had a reported parent IDV
Median reported offers
1
378 of 463 awards reported offers

Observed contract vehicles

Only exact reported parent-PIID matches are shown; missing parent IDs are not inferred.

  • IA-NMAAEC

    $4.7M

    2.8% of positive obligations · 8 matched awards

  • OASIS

    $2.7M

    1.6% of positive obligations · 1 matched award

  • TACCOM II

    $1.9M

    1.1% of positive obligations · 8 matched awards

Buying method changes

Compared with Oct 24, 2024–Oct 23, 2025. Based on 463 current awards and 547 preceding awards with positive net obligations.

Leading reported procedure
Mafo
Previously Subject to Multiple Award Fair Opportunity · 68.9% preceding vs 38.9% current
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 541330 peer median, parent-IDV obligation share is 14.7 percentage points higher, reported full-and-open obligation share is 23.9 percentage points higher, delivery-order obligation share is 25.3 percentage points higher, and median positive award obligations are 55.3% lower.

MeasureThis marketPeer medianDifference
Parent-IDV obligation share95.0%80.3%+14.7 pts
Reported full-and-open obligation share37.9%14.1%+23.9 pts
Delivery-order obligation share93.8%68.5%+25.3 pts
Median positive award obligations$134K$300K-55.3%
Peer cohort and comparison limits

The peer median gives each of the 15 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
Delivery Order(C)405$158.5M93.8%
Definitive Contract(D)19$5.7M3.4%
Purchase Order(B)26$2.8M1.6%
BPA Call(A)13$1.9M1.1%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
IDC(B)356$146.6M86.7%
FSS(C)49$11.9M7.1%
BPA(E)13$1.9M1.1%
Not reported45$8.5M5.0%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Multiple Award(M)336$129.4M76.6%
Single Award(S)82$31.0M18.4%
Not reported45$8.5M5.0%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Mafo(SUBJECT TO MULTIPLE AWARD FAIR OPPORTUNITY)170$65.7M38.9%
Subject to Multiple Award Fair Opportunity(MAFO)169$64.1M37.9%
Negotiated Proposal/Quote(NP)4$12.1M7.2%
Architect-Engineer FAR 6.102(AE)42$9.8M5.8%
Ae(ARCHITECT-ENGINEER FAR 6.102)26$7.3M4.3%
Simplified Acquisition(SP1)21$3.3M2.0%
Other reported values31$6.7M4.0%

Extent competed

Reported valueAwardsPositive obligationsShare
Full and Open Competition(A)132$64.1M37.9%
A(FULL AND OPEN COMPETITION)116$52.2M30.9%
Full and Open Competition After Exclusion of Sources(D)90$23.5M13.9%
D(FULL AND OPEN COMPETITION AFTER EXCLUSION OF SOURCES)85$21.8M12.9%
Competed Under SAP(F)17$3.3M1.9%
C(NOT COMPETED)3$2.5M1.5%
Other reported values20$1.6M0.95%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Fair Opportunity Given(FAIR)245$110.9M65.7%
Follow-on Action Following Competitive Initial Action(FOO)31$8.6M5.1%
Competitive Set Aside(CSA)40$7.6M4.5%
Only One Source - Other(ONE)16$2.1M1.3%
Other Statutory Authority(OSA)7$541K0.32%
Not reported124$39.2M23.2%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
Unique Source (FAR 6.302-1(B)(1))(UNQ)1$1.6M0.96%
Only One Source-Other (FAR 6.302-1 Other)(ONE)7$1.3M0.75%
Follow-on Contract (FAR 6.302-1(A)(2)(Ii/Iii))(FOC)1$406K0.24%
SAP Non-Competition (FAR 13)(SP2)6$129K0.080%
Authorized by Statute (FAR 6.302-5(A)(2)(I))(OTH)2$87K0.050%
Not reported446$165.5M97.9%

Contract pricing types

Reported valueAwardsPositive obligationsShare
Firm Fixed Price(J)242$75.9M44.9%
J(FIRM FIXED PRICE)205$73.9M43.7%
Cost Plus Award Fee(R)1$11.8M7.0%
Time and Materials(Y)4$3.1M1.8%
Y(TIME AND MATERIALS)3$2.4M1.4%
Labor Hours(Z)3$747K0.44%
Other reported values5$1.2M0.73%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Architect and Engineering- General: Engineering Drafting, Not Cad/Cam(C212)116$40.5M23.9%
Architect and Engineering- General: Landscaping, Interior Layout, and Designing(C211)131$34.1M20.2%
Architect and Engineering- General: Other(C219)56$33.0M19.6%
Support- Professional: Engineering/Technical(R425)15$15.7M9.3%
Special Studies/Analysis- Building Technology(B540)2$9.7M5.7%
Inspection- Construction and Building Materials(H356)23$5.4M3.2%
Other reported values120$30.5M18.1%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
National Park Service(1443)262$81.3M48.1%
Bureau of Indian Affairs and Bureau of Indian Education(1450)32$31.0M18.3%
U.S. Geological Survey(1434)22$15.5M9.2%
Departmental Offices(1406)19$14.1M8.3%
Bureau of Reclamation(1425)38$11.7M6.9%
U.S. Fish and Wildlife Service(1448)45$7.8M4.6%
Other reported values45$7.6M4.5%

Awarding offices

Reported valueAwardsPositive obligationsShare
Dsc Contracting Services Division(140P20)140$61.1M36.1%
Bureau of Indian Affairs(140A16)25$28.4M16.8%
Ofc of Acqusition Grants-National(140G01)14$15.0M8.9%
Ibc Acq Svcs Directorate (00004)(140D04)13$13.1M7.8%
Pacific Nw Region Pn 6615(140R10)10$3.6M2.1%
Ser East Mabo(51000)(140P51)12$3.5M2.1%
Other reported values249$44.3M26.2%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
ING17PC00017(1434)2$12.1M7.2%
140P2026D0005(1443)4$8.1M4.8%
140A1624D0019(1450)2$8.0M4.8%
140A1624D0033(1450)2$7.1M4.2%
140P2026D0007(1443)11$6.8M4.0%
DEAM3609GO29029(8900)1$6.2M3.7%
140P2026D0004(1443)17$6.0M3.5%
140F0822D0274(1448)2$5.8M3.4%
Other reported values377$100.3M59.4%
Not reported45$8.5M5.0%

Exact vehicle-match evidence

Reported award data linked 26 awards to a specific catalog vehicle.

Offers, award size, and timing

Median reported offers
1 median
378 reported · 85 not reported
Positive award obligations
$134K median
$47K–$309K middle 50%
Reported performance period
394 days (~13 months) median
463 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 Oct 23, 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
37 of 162prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
7.1%of positive obligations in the last 12 months
Leading four prime contractors
23.1%of positive obligations in the last 12 months
Leading eight prime contractors
38.6%of positive obligations in the last 12 months

Based on $163.7M in positive obligations during the 12 months ending Oct 23, 2026. Individual shares and movement appear in the searchable rankings below. Movement compares with Oct 24, 2024–Oct 23, 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

    $11.7M

    7.1%

    Dollar movement

    −$1.2M

    vs. prior 12 months

    Last 12mo awards

    7 awards

    12 actions

    Historical and award details for GENERAL DYNAMICS MISSION SYSTEMS, INC.
    Obligations: prior → latest
    $12.8M → $11.7M
    −9.0%
    Share: prior → latest
    6.7% → 7.1%
    +0.5 percentage points
    All-period obligations
    $79.7M
    7.0% of all-period positive obligations · 17 awards
    Recorded activity
    Since Oct 26, 2021
    through Sep 24, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported73
    Reported small business00
    All-period set-aside types

    None reported.

  2. #2

    Last 12mo obligations

    $9.8M

    6.0%

    Dollar movement

    +$6.0M

    vs. prior 12 months

    Last 12mo awards

    33 awards

    46 actions

    Historical and award details for OTAK, INC.
    Obligations: prior → latest
    $3.7M → $9.8M
    +161.3%
    Share: prior → latest
    1.9% → 6.0%
    +4.0 percentage points
    All-period obligations
    $36.0M
    3.2% of all-period positive obligations · 66 awards
    Recorded activity
    Since Jan 7, 2022
    through Sep 25, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported3327
    Reported small business00
    All-period set-aside types

    None reported.

  3. #3

    Last 12mo obligations

    $8.2M

    5.0%

    Dollar movement

    +$4.9M

    vs. prior 12 months

    Last 12mo awards

    4 awards

    6 actions

    Historical and award details for DOWL, LLC
    Obligations: prior → latest
    $3.3M → $8.2M
    +149.2%
    Share: prior → latest
    1.7% → 5.0%
    +3.3 percentage points
    All-period obligations
    $25.2M
    2.2% of all-period positive obligations · 14 awards
    Recorded activity
    Since Nov 3, 2021
    through Jul 24, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported45
    Reported small business00
    All-period set-aside types

    None reported.

  4. #4

    Last 12mo obligations

    $8.1M

    5.0%

    Dollar movement

    +$8.1M

    vs. prior 12 months

    Last 12mo awards

    4 awards

    5 actions

    Historical and award details for JACOBS GOVERNMENT SERVICES COMPANY
    Obligations: prior → latest
    $0 → $8.1M
    Not comparable
    Share: prior → latest
    0% → 5.0%
    +5.0 percentage points
    All-period obligations
    $8.1M
    0.72% of all-period positive obligations · 4 awards
    Recorded activity
    Since May 14, 2026
    through Sep 24, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported40
    Reported small business00
    All-period set-aside types

    None reported.

  5. #5

    Last 12mo obligations

    $7.1M

    4.3%

    Dollar movement

    +$6.6M

    vs. prior 12 months

    Last 12mo awards

    6 awards

    14 actions

    Historical and award details for BARR ENGINEERING CO.
    Obligations: prior → latest
    $536K → $7.1M
    +1229.7%
    Share: prior → latest
    0.28% → 4.3%
    +4.1 percentage points
    All-period obligations
    $9.5M
    0.84% of all-period positive obligations · 18 awards
    Recorded activity
    Since Oct 27, 2021
    through Sep 21, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported65
    Reported small business00
    All-period set-aside types

    None reported.

  6. #6

    Last 12mo obligations

    $6.2M

    3.8%

    Dollar movement

    +$850K

    vs. prior 12 months

    Last 12mo awards

    1 award

    6 actions

    Historical and award details for AMERESCO INC
    Obligations: prior → latest
    $5.4M → $6.2M
    +15.9%
    Share: prior → latest
    2.8% → 3.8%
    +1.0 percentage points
    All-period obligations
    $27.0M
    2.4% of all-period positive obligations · 1 award
    Recorded activity
    Since Oct 28, 2021
    through Aug 31, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported11
    Reported small business00
    All-period set-aside types

    None reported.

  7. #7

    Last 12mo obligations

    $6.1M

    3.7%

    Dollar movement

    +$6.2M

    vs. prior 12 months

    Last 12mo awards

    20 awards

    26 actions

    Historical and award details for HDR ENGINEERING INC
    Obligations: prior → latest
    −$75K → $6.1M
    Not comparable
    Share: prior → latest
    0% → 3.7%
    +3.7 percentage points
    All-period obligations
    $6.1M
    0.54% of all-period positive obligations · 41 awards
    Recorded activity
    Since Dec 8, 2021
    through Oct 9, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported204
    Reported small business00
    All-period set-aside types

    None reported.

  8. #8

    Last 12mo obligations

    $6.0M

    3.6%

    Dollar movement

    −$892K

    vs. prior 12 months

    Last 12mo awards

    41 awards

    56 actions

    Historical and award details for STANTEC CONSULTING SERVICES INC.
    Obligations: prior → latest
    $6.8M → $6.0M
    −13.0%
    Share: prior → latest
    3.6% → 3.6%
    +0.1 percentage points
    All-period obligations
    $45.6M
    4.0% of all-period positive obligations · 93 awards
    Recorded activity
    Since Dec 30, 2021
    through Oct 19, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside01
    Not reported4154
    Reported small business00
    All-period set-aside types

    None reported.

  9. #9

    Last 12mo obligations

    $5.8M

    3.5%

    Dollar movement

    +$5.7M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    2 actions

    Historical and award details for MSMM HUITT-ZOLLARS A JOINT VENTURE LLC
    Obligations: prior → latest
    $59K → $5.8M
    +9587.0%
    Share: prior → latest
    0.030% → 3.5%
    +3.5 percentage points
    All-period obligations
    $6.8M
    0.60% of all-period positive obligations · 2 awards
    Recorded activity
    Since Sep 20, 2024
    through Jun 11, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported21
    Reported small business21
    All-period set-aside types

    None reported.

  10. #10

    Last 12mo obligations

    $4.7M

    2.9%

    Dollar movement

    +$4.8M

    vs. prior 12 months

    Last 12mo awards

    15 awards

    19 actions

    Historical and award details for DHM DESIGN CORPORATION
    Obligations: prior → latest
    −$74K → $4.7M
    Not comparable
    Share: prior → latest
    0% → 2.9%
    +2.9 percentage points
    All-period obligations
    $13.3M
    1.2% of all-period positive obligations · 83 awards
    Recorded activity
    Since Oct 14, 2021
    through Oct 8, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside20
    Reported no set-aside00
    Not reported1310
    Reported small business1010
    All-period set-aside types
    • 3 · Total small business
  11. #11

    Last 12mo obligations

    $4.3M

    2.6%

    Dollar movement

    +$4.3M

    vs. prior 12 months

    Last 12mo awards

    11 awards

    13 actions

    Historical and award details for VANASSE HANGEN BRUSTLIN, INC.
    Obligations: prior → latest
    $0 → $4.3M
    Not comparable
    Share: prior → latest
    0% → 2.6%
    +2.6 percentage points
    All-period obligations
    $4.0M
    0.36% of all-period positive obligations · 18 awards
    Recorded activity
    Since Dec 21, 2021
    through Sep 24, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported110
    Reported small business00
    All-period set-aside types

    None reported.

  12. #12

    Last 12mo obligations

    $4.3M

    2.6%

    Dollar movement

    +$67K

    vs. prior 12 months

    Last 12mo awards

    2 awards

    2 actions

    Historical and award details for SIEMENS GOVERNMENT TECHNOLOGIES INC
    Obligations: prior → latest
    $4.2M → $4.3M
    +1.6%
    Share: prior → latest
    2.2% → 2.6%
    +0.4 percentage points
    All-period obligations
    $22.0M
    1.9% of all-period positive obligations · 4 awards
    Recorded activity
    Since Mar 14, 2022
    through Jun 1, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported22
    Reported small business00
    All-period set-aside types

    None reported.

  13. #13

    Last 12mo obligations

    $4.1M

    2.5%

    Dollar movement

    −$40K

    vs. prior 12 months

    Last 12mo awards

    42 awards

    52 actions

    Historical and award details for DJ&A, P.C.
    Obligations: prior → latest
    $4.1M → $4.1M
    −1.0%
    Share: prior → latest
    2.1% → 2.5%
    +0.3 percentage points
    All-period obligations
    $35.0M
    3.1% of all-period positive obligations · 137 awards
    Recorded activity
    Since Oct 19, 2021
    through Oct 20, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside23
    Reported no set-aside01
    Not reported4031
    Reported small business3035
    All-period set-aside types
    • 6 · Total small business
  14. #14

    Last 12mo obligations

    $3.8M

    2.3%

    Dollar movement

    −$6.2M

    vs. prior 12 months

    Last 12mo awards

    26 awards

    38 actions

    Historical and award details for HDR ENGINEERING, INC.
    Obligations: prior → latest
    $10.0M → $3.8M
    −61.8%
    Share: prior → latest
    5.2% → 2.3%
    −2.9 percentage points
    All-period obligations
    $77.4M
    6.8% of all-period positive obligations · 123 awards
    Recorded activity
    Since Oct 6, 2021
    through Oct 15, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside01
    Not reported2639
    Reported small business00
    All-period set-aside types

    None reported.

  15. #15

    Last 12mo obligations

    $3.4M

    2.1%

    Dollar movement

    +$2.0M

    vs. prior 12 months

    Last 12mo awards

    11 awards

    15 actions

    Historical and award details for JOSEPH DAVID ASSOCIATES LLC
    Obligations: prior → latest
    $1.4M → $3.4M
    +145.7%
    Share: prior → latest
    0.72% → 2.1%
    +1.4 percentage points
    All-period obligations
    $16.1M
    1.4% of all-period positive obligations · 30 awards
    Recorded activity
    Since Nov 2, 2021
    through Sep 22, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported1114
    Reported small business1114
    All-period set-aside types

    None reported.

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

+$11.8M

GENERAL DYNAMICS MISSION SYSTEMS, INC.

OFC OF ACQUSITION GRANTS-NATIONAL

LANDSAT OPERATIONS TO 17 - OPERATIONS AND SUSTAINMENT

Why it stands out

A new award added obligations despite weaker contractor activity.

The action represented 7.2% of the market’s latest 12-month positive obligations while the contractor’s obligations fell $1.2M overall.

Award net obligations
$11.8M
Share of 12-month positive obligations
7.2%
Supporting data
Prime contractor
#1 · 7.1% share
$1.2M net decline despite this positive action
Funding office
#3 · 8.7% attributed share
$1.9M net decline despite this positive action
PIID 140G0126F0237
Modification

This action

+$5.8M

BARR ENGINEERING CO.

BUREAU OF INDIAN AFFAIRS

2025 COMPREHENSIVE REVIEWS GROUP 2

Why it stands out

The contractor climbed 62 positions in this market.

It now ranks #5 by positive obligations over the latest 12 months.

Award net obligations
$5.8M
Share of 12-month positive obligations
3.6%
Supporting data
Prime contractor
#5 · 4.3% share
up 62 ranks · +4.1 percentage points · $6.6M net increase; action accounted for 88.5%
Related:Largest share gain
PIID 140A1625F0112 · Mod P00003
Base award

This action

+$3.8M

JACOBS GOVERNMENT SERVICES COMPANY

DSC CONTRACTING SERVICES DIVISION

YOSE 215363 WWTP TM TITLE III SERVICES

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 #4 in this market by positive obligations over the latest 12 months.

Award net obligations
$3.8M
Share of 12-month positive obligations
2.3%
Supporting data
Prime contractor
#4 · 5.0% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#1 · 35.8% attributed share
$5.1M net decline despite this positive action
Related:Newly observed contractor cohortLargest newly observed contractor
PIID 140P2026F0215
Modification

This action

+$3.5M

SIEMENS GOVERNMENT TECHNOLOGIES INC

NCR REGIONAL CONTRACTING(30000)

"EO 14398" THE PURPOSE OF THIS MODIFICATION IS TO MAKE YEAR 11 PAYMENT PHASE I AND II, CHANGE CONTRACTING OFFICER, AND UPDATE CLAUSES TO ENSURE COMPLIANCE WITH UPDATED FEDERAL GUIDANCE.

Why it stands out

The funding office climbed 2 positions in attributed spending.

It now ranks #6 in attributed spending.

Award net obligations
$42.4M
Share of 12-month positive obligations
2.1%
PIID INP14PD02336 · Mod P00022
Modification

This action

+$3.2M

AMERESCO INC

FACILITIES ADMIN SERVICES (00030)

EO14042 ENERGY PERFORMANCE SAVINGS CONTRACT (ESPC)

Why it stands out

The contractor climbed 2 positions in this market.

It now ranks #6 by positive obligations over the latest 12 months.

Award net obligations
$61.3M
Share of 12-month positive obligations
1.9%
PIID IND15PD00353 · Mod P00079
Base award

This action

+$5.7M

MSMM HUITT-ZOLLARS A JOINT VENTURE LLC

DSC CONTRACTING SERVICES DIVISION

EVER 290451 - REHAB PARKWIDE WATER/WASTEWATER (FLAMINGO DISTRICT) AT EVERGLADES NATIONAL PARK, FLORIDA ARCHITECTURAL AND ENGINEERING (A-E) SERVICES DESIGN DEVELOPMENT (DD) AND CONSTRUCTION DOCUMENTS (CD) TASK ORDER

Why it stands out

The contractor climbed 124 positions in this market.

It now ranks #9 by positive obligations over the latest 12 months.

Award net obligations
$5.7M
Share of 12-month positive obligations
3.5%
Supporting data
Funding office
#1 · 35.8% attributed share
$5.1M net decline despite this positive action
PIID 140P2026F0068
View recent award activity by date (10)
  1. DJ&A, P.C.Base award · PIID 140PP027F0010
    Action+$293K
    Award net obligations$293K
  2. STANTEC CONSULTING SERVICES INC.Deobligation · PIID 140P4223F0019
    Action−$22K
    Award net obligations$131K
  3. BRATSLAVSKY CONSULTING ENGINEERS, INC.Modification · PIID 140L4326F0064
    Action+$7K
    Award net obligations$105K
  4. E2 PROJECT MANAGEMENT LLCBase award · PIID 140P4526F0030
    Action+$65K
    Award net obligations$65K
  5. PACE COLLABORATIVE, PLLCBase award · PIID 140PS126F0082
    Action+$47K
    Award net obligations$47K
  6. JACOBS ENGINEERING GROUP INC.Modification · PIID 140P5224F0039
    Action+$19K
    Award net obligations$209K
  7. AECOM TECHNICAL SERVICES, INC.Base award · PIID 140P2026F0256
    Action+$498K
    Award net obligations$498K
  8. VIKA VIRGINIA, LLCBase award · PIID 140L0626C0021
    Action+$397K
    Award net obligations$397K
  9. STANTEC CONSULTING SERVICES INC.Base award · PIID 140P5426F0025
    Action+$216K
    Award net obligations$216K
  10. CROFT AND ASSOCIATES, INC.Base award · PIID 140P5426F0026
    Action+$197K
    Award net obligations$197K

DOI engineering services market FAQs

Answers based on reported federal contract data.

Who are the top DOI engineering services contractors?

In the 12 months through October 23, 2026, GENERAL DYNAMICS MISSION SYSTEMS, INC., OTAK, INC., and DOWL, LLC were the leading DOI engineering services prime contractors by positive obligations.

  1. #1

    GENERAL DYNAMICS MISSION SYSTEMS, INC.

    $11,685,092 in positive obligations

  2. #2

    OTAK, INC.

    $9,778,581 in positive obligations

  3. #3

    DOWL, LLC

    $8,238,849 in positive obligations

Rankings use reported USAspending award data.

Did DOI contract obligations decrease in the engineering services market?

Yes. Measured by net prime contract obligations, reported DOI activity in the engineering services market decreased 14.6% from $188,731,501 in the preceding 12 months to $161,183,734 in the 12 months through October 23, 2026.

Latest 12 months
$161,183,734
Net prime contract obligations
Preceding 12 months
$188,731,501
Net prime contract obligations
Change
−14.6%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

What recent DOI contract award activity was reported in the engineering services market?

Recent DOI contract award activity reported in the engineering services market included actions for GENERAL DYNAMICS MISSION SYSTEMS, INC., BARR ENGINEERING CO., and JACOBS GOVERNMENT SERVICES COMPANY during the 12 months through October 23, 2026.

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

Which procurement methods were reported for DOI contracts under NAICS 541330?

From October 24, 2025 through October 23, 2026, DOI reported 463 positive-obligation awards for engineering services under NAICS 541330. The leading award type was delivery order. The leading reported procedure was mafo.

Positive-obligation awards
463
Leading reported procedure
Mafo
38.9% of positive obligations
Leading award type
Delivery Order
93.8% of positive obligations
Full and open
37.9%
of positive obligations
Reported parent IDV
95%
of positive obligations
Observed vehicles
IA-NMAAEC, OASIS, and TACCOM II
Exact matches from reported parent PIIDs

Percentages use positive obligations as the denominator.

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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:

Leading-prime vehicle memberships:

Company memberships do not establish award-channel use.

Reported obligations include contract actions from October 1, 2021 through October 23, 2026. Set-aside and business-size fields reflect award records, not a contractor's current eligibility.

Review data methodology