Federal Capture Intelligence

Top DOI plumbing, heating, and air-conditioning contractors (NAICS 238220)

Contract actions: October 1, 2021 – October 23, 2026 Updated October 24, 2026 Department of the Interior agency guide NAICS 238220 · Plumbing, Heating, and Air-Conditioning Contractors
Latest 12 months
$29.6M
Net obligations · Up $4.6M vs. $25.0M preceding
Prime contractors
316
With positive obligations in the latest 12 months

Research the DOI federal contracting market for plumbing, heating, and air-conditioning under NAICS 238220. Compare top federal contractors and market share, reported contract obligations and spending trends, funding-office attribution, recent award activity, and contract types, competition, and procurement methods.

Contract obligation trends for Plumbing, Heating, and Air-Conditioning Contractors at the Department of the Interior

Federal records show $145.7M in net obligations across 1,664 awards in Plumbing, Heating, and Air-Conditioning Contractors at the Department of the Interior from Oct 1, 2021 through Oct 23, 2026. This market accounts for 0.54% of $26.8B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations increased 18.3% from $25.0M to $29.6M. 74 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: $127K versus $0 through the same date in FY26 (Not comparable).
Net obligations · complete fiscal yearNet obligations · FY27 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$34.1M538Complete
FY2023$18.2M543Complete
FY2024$38.8M600Complete
FY2025$25.0M605Complete
FY2026$29.4M676Complete

Market at a glance

All reported prime contract awards
All-period net obligations
$145.7M
1,664 awards · 937 prime contractors
Latest 12-month movement
+18.3%
$29.6M vs. $25.0M
Leading eight prime share
33.8%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
0.54% of $26.8B in agency-wide net obligations.
Set-aside share when reported
64.9% of 1,622 awards with reported set-aside status.
Set-aside reporting
1,053 set aside · 569 no set-aside · 42 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

39 contractors were first observed in this market during the latest 12 months
$4.6MLatest 12-month obligations
Contractor-level obligations and first-observed dates appear below. “First observed” applies only to this market and the period shown.
View 39 contractors
ContractorLatest 12 months
AXIOM BUILDERS INC lost the most market share
9.2%→2.8%−6.4 percentage points
The contractor now ranks #4 by positive obligations, based on 7 reported actions.

Buyer demand

Reported obligations through PWR PORE MABO (84000) increased
$68K→$4.0M+$3.9M
Latest-period activity spans 8 awards across 7 prime contractors.
Reported obligations through NATIONAL OPERATIONS CENTER decreased
$2.4M→$492K−$1.9M
Latest-period activity spans 4 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 Oct 23, 2026.

13.5% of positive obligations were attributed to PWR PORE MABO (84000). That represents $4.0M, up $3.9M from the preceding 12 months.

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

  1. PWR PORE MABO (84000)13.5% · $4.0M · up $3.9M
  2. MWR MIDWEST REGION(60000)8.0% · $2.4M · up $1.9M
  3. NER SERVICES MABO (43000)7.4% · $2.2M · down $756K
  4. INDIAN EDUCATION ACQUISITION OFFICE6.5% · $1.9M · down $48K
  5. NORTHEAST REGIONAL CONTRACTING4.4% · $1.3M · up $1.2M
  6. All other reported offices60.2% 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

    PWR PORE MABO (84000)

    #1Up 41 from #42

    Latest 12 months

    $4.0M

    13.5% of positive obligations

    Versus preceding 12 months

    +$3.9M

    7 active prime contractors · 8 awards

    View office comparison and evidence

    Reported obligations increased 5769.8% from $68K to $4.0M. The office’s share of positive obligations moved from 0.27% to 13.5%, a change of +13.3 percentage points.

    The latest period contains 8 actions across 8 awards and 4 newly active prime contractors. The preceding period contained 6 active prime contractors and 7 awards.

    Leading award-level changes

  2. Reported funding office

    MWR MIDWEST REGION(60000)

    #2Up 12 from #14

    Latest 12 months

    $2.4M

    8.0% of positive obligations

    Versus preceding 12 months

    +$1.9M

    8 active prime contractors · 9 awards

    View office comparison and evidence

    Reported obligations increased 408.8% from $465K to $2.4M. The office’s share of positive obligations moved from 1.9% to 8.0%, a change of +6.1 percentage points.

    The latest period contains 9 actions across 9 awards and 6 newly active prime contractors. The preceding period contained 6 active prime contractors and 7 awards.

  3. Reported funding office

    NER SERVICES MABO (43000)

    #3Down 2 from #1

    Latest 12 months

    $2.2M

    7.4% of positive obligations

    Versus preceding 12 months

    −$756K

    27 active prime contractors · 31 awards

    View office comparison and evidence

    Reported obligations decreased 25.6% from $2.9M to $2.2M. The office’s share of positive obligations moved from 11.8% to 7.4%, a change of −4.4 percentage points.

    The latest period contains 40 actions across 31 awards and 11 newly active prime contractors. The preceding period contained 24 active prime contractors and 26 awards.

  4. Reported funding office

    INDIAN EDUCATION ACQUISITION OFFICE

    #4Rank unchanged

    Latest 12 months

    $1.9M

    6.5% of positive obligations

    Versus preceding 12 months

    −$48K

    23 active prime contractors · 36 awards

    View office comparison and evidence

    Reported obligations decreased 2.4% from $2.0M to $1.9M. The office’s share of positive obligations moved from 7.9% to 6.5%, a change of −1.4 percentage points.

    The latest period contains 59 actions across 36 awards and 9 newly active prime contractors. The preceding period contained 30 active prime contractors and 41 awards.

  5. Reported funding office

    NORTHEAST REGIONAL CONTRACTING

    #5Up 27 from #32

    Latest 12 months

    $1.3M

    4.4% of positive obligations

    Versus preceding 12 months

    +$1.2M

    11 active prime contractors · 13 awards

    View office comparison and evidence

    Reported obligations increased 1077.3% from $110K to $1.3M. The office’s share of positive obligations moved from 0.44% to 4.4%, a change of +4.0 percentage points.

    The latest period contains 17 actions across 13 awards and 10 newly active prime contractors. The preceding period contained 2 active prime contractors and 6 awards.

  6. Reported funding office

    SER EAST MABO(51000)

    #6Up 18 from #24

    Latest 12 months

    $1.2M

    3.9% of positive obligations

    Versus preceding 12 months

    +$888K

    19 active prime contractors · 20 awards

    View office comparison and evidence

    Reported obligations increased 328.9% from $270K to $1.2M. The office’s share of positive obligations moved from 1.1% to 3.9%, a change of +2.8 percentage points.

    The latest period contains 24 actions across 20 awards and 14 newly active prime contractors. The preceding period contained 13 active prime contractors and 14 awards.

  7. Reported funding office

    PWR LAME(81000)

    #7Up 8 from #15

    Latest 12 months

    $1.1M

    3.9% of positive obligations

    Versus preceding 12 months

    +$705K

    12 active prime contractors · 13 awards

    View office comparison and evidence

    Reported obligations increased 161.0% from $438K to $1.1M. The office’s share of positive obligations moved from 1.8% to 3.9%, a change of +2.1 percentage points.

    The latest period contains 16 actions across 13 awards and 6 newly active prime contractors. The preceding period contained 13 active prime contractors and 15 awards.

  8. Reported funding office

    MWR OHIO(64000)

    #8Up 3 from #11

    Latest 12 months

    $1.1M

    3.7% of positive obligations

    Versus preceding 12 months

    +$350K

    17 active prime contractors · 19 awards

    View office comparison and evidence

    Reported obligations increased 46.3% from $755K to $1.1M. The office’s share of positive obligations moved from 3.0% to 3.7%, a change of +0.7 percentage points.

    The latest period contains 23 actions across 19 awards and 10 newly active prime contractors. The preceding period contained 10 active prime contractors and 11 awards.

  9. Reported funding office

    PWR HONO MABO(82000)

    #9Up 7 from #16

    Latest 12 months

    $1.0M

    3.4% of positive obligations

    Versus preceding 12 months

    +$569K

    8 active prime contractors · 11 awards

    View office comparison and evidence

    Reported obligations increased 131.8% from $432K to $1.0M. The office’s share of positive obligations moved from 1.7% to 3.4%, a change of +1.7 percentage points.

    The latest period contains 23 actions across 11 awards and 3 newly active prime contractors. The preceding period contained 6 active prime contractors and 9 awards.

  10. Reported funding office

    PWR SF/SEA MABO(85000)

    #10Down 3 from #7

    Latest 12 months

    $908K

    3.1% of positive obligations

    Versus preceding 12 months

    −$319K

    12 active prime contractors · 15 awards

    View office comparison and evidence

    Reported obligations decreased 26.0% from $1.2M to $908K. The office’s share of positive obligations moved from 4.9% to 3.1%, a change of −1.8 percentage points.

    The latest period contains 19 actions across 15 awards and 4 newly active prime contractors. The preceding period contained 13 active prime contractors and 15 awards.

  11. Reported funding office

    NCR REGIONAL CONTRACTING(30000)

    #11Down 6 from #5

    Latest 12 months

    $844K

    2.9% of positive obligations

    Versus preceding 12 months

    −$755K

    9 active prime contractors · 13 awards

    View office comparison and evidence

    Reported obligations decreased 47.2% from $1.6M to $844K. The office’s share of positive obligations moved from 6.4% to 2.9%, a change of −3.5 percentage points.

    The latest period contains 15 actions across 13 awards and 6 newly active prime contractors. The preceding period contained 5 active prime contractors and 11 awards.

  12. Reported funding office

    ALASKA REGIONAL OFFICE(97000)

    #12Down 6 from #6

    Latest 12 months

    $809K

    2.7% of positive obligations

    Versus preceding 12 months

    −$729K

    8 active prime contractors · 10 awards

    View office comparison and evidence

    Reported obligations decreased 47.4% from $1.5M to $809K. The office’s share of positive obligations moved from 6.2% to 2.7%, a change of −3.4 percentage points.

    The latest period contains 12 actions across 10 awards and 5 newly active prime contractors. The preceding period contained 7 active prime contractors and 10 awards.

  13. Reported funding office

    NER SUPPLY MABO(45000)

    #17Down 14 from #3

    Latest 12 months

    $550K

    1.9% of positive obligations

    Versus preceding 12 months

    −$1.6M

    12 active prime contractors · 12 awards

    View office comparison and evidence

    Reported obligations decreased 74.0% from $2.1M to $550K. The office’s share of positive obligations moved from 8.4% to 1.9%, a change of −6.6 percentage points.

    The latest period contains 15 actions across 12 awards and 8 newly active prime contractors. The preceding period contained 11 active prime contractors and 11 awards.

  14. Reported funding office

    NATIONAL OPERATIONS CENTER

    #18Down 16 from #2

    Latest 12 months

    $492K

    1.7% of positive obligations

    Versus preceding 12 months

    −$1.9M

    4 active prime contractors · 4 awards

    View office comparison and evidence

    Reported obligations decreased 79.5% from $2.4M to $492K. The office’s share of positive obligations moved from 9.6% to 1.7%, a change of −8.0 percentage points.

    The latest period contains 6 actions across 4 awards and 2 newly active prime contractors. The preceding period contained 2 active prime contractors and 2 awards.

    Leading award-level changes

Contract types, competition, and procurement methods

From Oct 24, 2025 through Oct 23, 2026, 422 awards had positive obligations totaling $30.2M. Sp1 was the leading reported procedure, accounting for 29.0% of positive obligations. Awards with a reported parent IDV accounted for 2.2%.

Leading award type
52.1%
Definitive Contract
Leading reported procedure
29.0%
Sp1
Reported parent IDV
2.2%
of positive obligations had a reported parent IDV
Median reported offers
2
411 of 422 awards reported offers

Buying method changes

Compared with Oct 24, 2024–Oct 23, 2025. Based on 422 current awards and 381 preceding awards with positive net obligations.

Leading reported procedure
Sp1
Previously Simplified Acquisition · 40.7% preceding vs 29.0% 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 238220 peer median, parent-IDV obligation share is 21.5 percentage points lower, reported full-and-open obligation share is 0.6 percentage points lower, delivery-order obligation share is 9.7 percentage points lower, and median positive award obligations are 51.2% lower.

MeasureThis marketPeer medianDifference
Parent-IDV obligation share2.2%23.8%-21.5 pts
Reported full-and-open obligation share0%0.58%-0.6 pts
Delivery-order obligation share1.6%11.3%-9.7 pts
Median positive award obligations$20K$41K-51.2%
Peer cohort and comparison limits

The peer median gives each of the 10 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)64$15.7M52.1%
Purchase Order(B)337$13.8M45.7%
Delivery Order(C)11$485K1.6%
BPA Call(A)10$186K0.62%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
IDC(B)11$485K1.6%
BPA(E)10$186K0.62%
Not reported401$29.6M97.8%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Single Award(S)21$671K2.2%
Not reported401$29.6M97.8%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Sp1(SIMPLIFIED ACQUISITION)138$8.8M29.0%
Simplified Acquisition(SP1)198$7.7M25.4%
Np(NEGOTIATED PROPOSAL/QUOTE)10$6.7M22.0%
Sb(SEALED BID)4$3.0M9.9%
Sealed Bid(SB)4$1.9M6.2%
Only One Source(SSS)30$934K3.1%
Other reported values38$1.3M4.4%

Extent competed

Reported valueAwardsPositive obligationsShare
F(COMPETED UNDER SAP)120$8.0M26.6%
D(FULL AND OPEN COMPETITION AFTER EXCLUSION OF SOURCES)13$5.8M19.2%
Competed Under SAP(F)146$5.8M19.1%
A(FULL AND OPEN COMPETITION)1$3.9M12.7%
Full and Open Competition After Exclusion of Sources(D)15$2.3M7.7%
Not Competed Under SAP(G)52$1.9M6.3%
Other reported values75$2.5M8.4%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Not reported422$30.2M100.0%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
SAP Non-Competition (FAR 13)(SP2)61$2.2M7.2%
Only One Source-Other (FAR 6.302-1 Other)(ONE)29$903K3.0%
Urgency (FAR 6.302-2)(URG)25$677K2.2%
Authorized by Statute (FAR 6.302-5(A)(2)(I))(OTH)6$632K2.1%
Less Than or Equal to the Micro-Purchase Threshold(MPT)6$42K0.14%
Not reported295$25.8M85.3%

Contract pricing types

Reported valueAwardsPositive obligationsShare
J(FIRM FIXED PRICE)178$19.2M63.5%
Firm Fixed Price(J)241$10.7M35.3%
Time and Materials(Y)2$279K0.92%
Y(TIME AND MATERIALS)1$98K0.32%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Installation of Equipment- Refrigeration, Air Conditioning, and Air Circulating Equipment(N041)21$4.2M14.1%
Maintenance of Other Administrative Facilities and Service Buildings(Z1AZ)1$3.9M12.7%
Maint/Repair/Rebuild of Equipment- Plumbing, Heating, and Waste Disposal Equipment(J045)96$3.3M11.0%
Repair or Alteration of Office Buildings(Z2AA)23$2.5M8.1%
Maint/Repair/Rebuild of Equipment- Refrigeration, Air Conditioning, and Air Circulating Equipment(J041)48$1.7M5.5%
Repair or Alteration of Other Administrative Facilities and Service Buildings(Z2AZ)20$1.6M5.2%
Other reported values213$13.1M43.4%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
National Park Service(1443)196$19.8M65.5%
Bureau of Indian Affairs and Bureau of Indian Education(1450)52$3.0M10.0%
U.S. Fish and Wildlife Service(1448)88$2.0M6.6%
Bureau of Land Management(1422)28$1.7M5.7%
U.S. Geological Survey(1434)21$1.6M5.2%
Departmental Offices(1406)18$1.5M5.0%
Other reported values19$618K2.0%

Awarding offices

Reported valueAwardsPositive obligationsShare
Pwr Pore Mabo (84000)(140P84)6$4.0M13.3%
Ner Services Mabo (43000)(140P43)24$2.5M8.2%
Mwr Midwest Region(60000)(140P60)8$2.4M7.8%
Indian Education Acquisition Office(140A23)24$1.9M6.3%
Pwr Lame(81000)(140P81)11$1.2M3.9%
Ser East Mabo(51000)(140P51)17$1.2M3.9%
Other reported values332$17.1M56.7%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
140P8525D0001(1443)3$214K0.71%
140P8525D0003(1443)1$98K0.32%
140P8525D0002(1443)1$89K0.29%
140R2026A0001(1425)1$88K0.29%
140FS224A0057(1448)2$45K0.15%
140P3023D0007(1443)2$34K0.11%
140R3023A0005(1425)2$30K0.10%
140R3020D0006(1425)2$28K0.090%
Other reported values7$45K0.15%
Not reported401$29.6M97.8%

Offers, award size, and timing

Median reported offers
2 median
411 reported · 11 not reported
Positive award obligations
$20K median
$10K–$61K middle 50%
Reported performance period
120 days (~4 months) median
422 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
74 of 316prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
12.8%of positive obligations in the last 12 months
Leading four prime contractors
25.3%of positive obligations in the last 12 months
Leading eight prime contractors
33.8%of positive obligations in the last 12 months

Based on $30.1M 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

    $3.9M

    12.8%

    Dollar movement

    +$3.9M

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for G1 CONSTRUCTION, INC.
    Obligations: prior → latest
    $0 → $3.9M
    Not comparable
    Share: prior → latest
    0% → 12.8%
    +12.8 percentage points
    All-period obligations
    $3.9M
    2.6% of all-period positive obligations · 1 award
    Recorded activity
    Since Sep 3, 2026
    through Sep 3, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside10
    Not reported00
    Reported small business10
    All-period set-aside types

    None reported.

  2. #2

    Last 12mo obligations

    $2.0M

    6.7%

    Dollar movement

    +$2.0M

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for DLJ MANAGEMENT SERVICES, LLC
    Obligations: prior → latest
    $0 → $2.0M
    Not comparable
    Share: prior → latest
    0% → 6.7%
    +6.7 percentage points
    All-period obligations
    $2.0M
    1.4% of all-period positive obligations · 1 award
    Recorded activity
    Since Sep 1, 2026
    through Sep 1, 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
  3. #3

    Last 12mo obligations

    $895K

    3.0%

    Dollar movement

    +$895K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for WRX CONTRACTING, LLC
    Obligations: prior → latest
    $0 → $895K
    Not comparable
    Share: prior → latest
    0% → 3.0%
    +3.0 percentage points
    All-period obligations
    $895K
    0.61% of all-period positive obligations · 1 award
    Recorded activity
    Since Sep 21, 2026
    through Sep 21, 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
  4. #4

    Last 12mo obligations

    $847K

    2.8%

    Dollar movement

    −$1.5M

    vs. prior 12 months

    Last 12mo awards

    3 awards

    7 actions

    Historical and award details for AXIOM BUILDERS INC
    Obligations: prior → latest
    $2.4M → $847K
    −64.0%
    Share: prior → latest
    9.2% → 2.8%
    −6.4 percentage points
    All-period obligations
    $3.2M
    2.2% of all-period positive obligations · 4 awards
    Recorded activity
    Since Jul 28, 2025
    through Sep 22, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside32
    Reported no set-aside00
    Not reported00
    Reported small business32
    All-period set-aside types
    • 4 · Total small business
  5. #5

    Last 12mo obligations

    $687K

    2.3%

    Dollar movement

    +$687K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for SUPERIOR STRUCTURES LLC
    Obligations: prior → latest
    $0 → $687K
    Not comparable
    Share: prior → latest
    0% → 2.3%
    +2.3 percentage points
    All-period obligations
    $687K
    0.47% of all-period positive obligations · 1 award
    Recorded activity
    Since Aug 24, 2026
    through Aug 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 · SDVOSB set-aside
  6. #6

    Last 12mo obligations

    $649K

    2.2%

    Dollar movement

    +$649K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for VEDANT CONSTRUCTION INC
    Obligations: prior → latest
    $0 → $649K
    Not comparable
    Share: prior → latest
    0% → 2.2%
    +2.2 percentage points
    All-period obligations
    $649K
    0.44% of all-period positive obligations · 1 award
    Recorded activity
    Since Aug 21, 2026
    through Aug 21, 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
  7. #7

    Last 12mo obligations

    $622K

    2.1%

    Dollar movement

    +$622K

    vs. prior 12 months

    Last 12mo awards

    1 award

    3 actions

    Historical and award details for DAP MANAGEMENT GROUP, LLC
    Obligations: prior → latest
    $0 → $622K
    Not comparable
    Share: prior → latest
    0% → 2.1%
    +2.1 percentage points
    All-period obligations
    $622K
    0.42% of all-period positive obligations · 1 award
    Recorded activity
    Since Mar 18, 2026
    through Sep 21, 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
  8. #8

    Last 12mo obligations

    $583K

    1.9%

    Dollar movement

    −$52K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for MASSILLON CONSTRUCTION AND SUPPLY LLC
    Obligations: prior → latest
    $635K → $583K
    −8.1%
    Share: prior → latest
    2.5% → 1.9%
    −0.5 percentage points
    All-period obligations
    $1.6M
    1.1% of all-period positive obligations · 3 awards
    Recorded activity
    Since May 21, 2024
    through Jun 9, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside12
    Reported no set-aside00
    Not reported00
    Reported small business12
    All-period set-aside types
    • 2 · Total small business
    • 1 · WOSB set-aside
  9. #9

    Last 12mo obligations

    $542K

    1.8%

    Dollar movement

    +$468K

    vs. prior 12 months

    Last 12mo awards

    7 awards

    10 actions

    Historical and award details for ELEVEN BRAVO GROUP, LLC
    Obligations: prior → latest
    $74K → $542K
    +631.1%
    Share: prior → latest
    0.29% → 1.8%
    +1.5 percentage points
    All-period obligations
    $931K
    0.64% of all-period positive obligations · 11 awards
    Recorded activity
    Since Jul 1, 2024
    through Sep 24, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside43
    Reported no set-aside00
    Not reported31
    Reported small business74
    All-period set-aside types
    • 6 · Total small business
    • 1 · SDVOSB set-aside
  10. #10

    Last 12mo obligations

    $444K

    1.5%

    Dollar movement

    +$422K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for HAMILTON PACIFIC CHAMBERLAIN LLC
    Obligations: prior → latest
    $22K → $444K
    +1949.3%
    Share: prior → latest
    0.080% → 1.5%
    +1.4 percentage points
    All-period obligations
    $1.4M
    0.92% of all-period positive obligations · 2 awards
    Recorded activity
    Since Feb 23, 2024
    through Sep 25, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside01
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  11. #11

    Last 12mo obligations

    $423K

    1.4%

    Dollar movement

    +$423K

    vs. prior 12 months

    Last 12mo awards

    2 awards

    3 actions

    Historical and award details for HJ GOV CONTRACTING CORP
    Obligations: prior → latest
    $0 → $423K
    Not comparable
    Share: prior → latest
    0% → 1.4%
    +1.4 percentage points
    All-period obligations
    $423K
    0.29% of all-period positive obligations · 2 awards
    Recorded activity
    Since Apr 17, 2026
    through Jun 4, 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
  12. #12

    Last 12mo obligations

    $418K

    1.4%

    Dollar movement

    +$418K

    vs. prior 12 months

    Last 12mo awards

    1 award

    3 actions

    Historical and award details for PACIFIC COAST CONTRACTING GROUP
    Obligations: prior → latest
    $0 → $418K
    Not comparable
    Share: prior → latest
    0% → 1.4%
    +1.4 percentage points
    All-period obligations
    $418K
    0.29% of all-period positive obligations · 1 award
    Recorded activity
    Since Mar 23, 2026
    through Aug 19, 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

    $401K

    1.3%

    Dollar movement

    +$359K

    vs. prior 12 months

    Last 12mo awards

    5 awards

    7 actions

    Historical and award details for MOOWEEP LLC
    Obligations: prior → latest
    $43K → $401K
    +838.8%
    Share: prior → latest
    0.17% → 1.3%
    +1.2 percentage points
    All-period obligations
    $591K
    0.40% of all-period positive obligations · 10 awards
    Recorded activity
    Since Jan 19, 2023
    through Sep 23, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside42
    Reported no set-aside10
    Not reported00
    Reported small business42
    All-period set-aside types
    • 7 · Indian small business
    • 2 · INDIAN ECONOMIC ENTERPRISE
  14. #14

    Last 12mo obligations

    $393K

    1.3%

    Dollar movement

    +$321K

    vs. prior 12 months

    Last 12mo awards

    4 awards

    5 actions

    Historical and award details for XENTURIS LLC
    Obligations: prior → latest
    $72K → $393K
    +443.9%
    Share: prior → latest
    0.28% → 1.3%
    +1.0 percentage points
    All-period obligations
    $465K
    0.32% of all-period positive obligations · 6 awards
    Recorded activity
    Since Jul 29, 2025
    through Sep 25, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside42
    Reported no set-aside00
    Not reported00
    Reported small business42
    All-period set-aside types
    • 6 · Total small business
  15. #15

    Last 12mo obligations

    $389K

    1.3%

    Dollar movement

    +$389K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for WESTERN MECHANICAL, INC.
    Obligations: prior → latest
    $0 → $389K
    Not comparable
    Share: prior → latest
    0% → 1.3%
    +1.3 percentage points
    All-period obligations
    $389K
    0.27% of all-period positive obligations · 1 award
    Recorded activity
    Since Aug 5, 2026
    through Aug 5, 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

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

+$3.9M

G1 CONSTRUCTION, INC.

PWR PORE MABO (84000)

REHABILITATE HVAC SYSTEM COMPONENTS AT PARK HEADQUARTERS (HQ) AND NORTH OPERATIONS CENTER (NOC), REDWOOD NATIONAL AND STATE PARKS, DEL NORTE COUNTY, CALIFORNIA.

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

Award net obligations
$3.9M
Share of 12-month positive obligations
12.8%
Supporting data
Prime contractor
#1 · 12.8% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#1 · 13.5% attributed share
up 41 ranks · +13.3 percentage points · $3.9M net increase; action accounted for 97.9%
Related:Funding office gain
PIID 140P8426C0001
Base award

This action

+$2.0M

DLJ MANAGEMENT SERVICES, LLC

MWR MIDWEST REGION(60000)

JEFF REPLACE COOLING TOWER AND BOILER

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

Award net obligations
$2.0M
Share of 12-month positive obligations
6.7%
Supporting data
Prime contractor
#2 · 6.7% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#2 · 8.0% attributed share
up 12 ranks · +6.1 percentage points · $1.9M net increase; action exceeded it by $122K
PIID 140P6026C0011
Base award

This action

+$895K

WRX CONTRACTING, LLC

PWR LAME(81000)

CONSTRUCTION PROJECT TO BRING TWO NPS LOG CABINS, LOCATED AT THE DELLENBAUGH ADMIN SITE AT GRAND CANYON-PARASHANT NATIONAL MONUMENT, UP TO THE CURRENT FIRE CODE. THE CONTRACTOR WILL INSTALL A NEW SPRINKLER AND FIRE DETECTION SYSTEM IN THESE TWO CABIN

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

Award net obligations
$895K
Share of 12-month positive obligations
3.0%
Supporting data
Prime contractor
#3 · 3.0% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#7 · 3.9% attributed share
up 8 ranks · +2.1 percentage points · $705K net increase; action exceeded it by $190K
PIID 140P8126C0005
Base award

This action

+$687K

SUPERIOR STRUCTURES LLC

NER SERVICES MABO (43000)

GEORGE WASHINGTON BIRTHPLACE NATIONAL MONUMENT- REPLACE HVAC EQUIPMENT IN THE MEMORIAL HOUSE MUSEUM

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
$687K
Share of 12-month positive obligations
2.3%
Supporting data
Prime contractor
#5 · 2.3% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#3 · 7.4% attributed share
$756K net decline despite this positive action
PIID 140P4326C0026
Base award

This action

+$649K

VEDANT CONSTRUCTION INC

NER SERVICES MABO (43000)

LOWELL NATIONAL HISTORICAL PARK - REPLACE COOLING TOWER 1 AND PUMPS

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
$649K
Share of 12-month positive obligations
2.2%
Supporting data
Prime contractor
#6 · 2.2% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#3 · 7.4% attributed share
$756K net decline despite this positive action
PIID 140P4326C0023
Modification

This action

+$476K

AXIOM BUILDERS INC

NORTHWEST OREGON DISTRICT

HVAC CONTROL SYSTEM, OR

Why it stands out

The funding office climbed 41 positions in attributed spending.

It now ranks #20 in attributed spending.

Award net obligations
$3.1M
Share of 12-month positive obligations
1.6%
Supporting data
Prime contractor
#4 · 2.8% share
$1.5M net decline despite this positive action
PIID 140L0625C0012 · Mod P00006
View recent award activity by date (10)
  1. PRECISION MECHANICAL SERVICES, LLCDeobligation · PIID 140P4220F0041
    Action−$6K
    Award net obligations$28K
  2. UTILITY SYSTEMS SOLUTIONS, INC.Deobligation · PIID 140P5221C0079
    Action>−$1
    Award net obligations$399K
  3. LACREEK DEVELOPMENT CORPModification · PIID 140A2326P0031
    Action+$16K
    Award net obligations$155K
  4. ARABIC INTERPRETERS LLCModification · PIID 140R4026P0086
    Action+$5K
    Award net obligations$97K
  5. B2B DIRECT SALES, INC.Modification · PIID 140A2326P0405
    Action+$36K
    Award net obligations$60K
  6. APOLLO SHEET METAL INCDeobligation · PIID 140P1223P0074
    Action−$13K
    Award net obligations$36K
  7. BRUCE KREOFSKY & SONS INCBase award · PIID 140PP027P0005
    Action+$15K
    Award net obligations$15K
  8. DRAIN MASTER PLUMBING SOLUTIONS LLCBase award · PIID 140A0427P0038
    Action+$14K
    Award net obligations$14K
  9. WESTERN WHOLESALE INSTALLED SALES, L.L.C.Base award · PIID 140FF027P0002
    Action+$10K
    Award net obligations$10K
  10. CHET LEBLANC A/C & HEATING LLCBase award · PIID 140FF027P0001
    Action+$49K
    Award net obligations$49K

DOI plumbing, heating, and air-conditioning market FAQs

Answers based on reported federal contract data.

Who are the top DOI plumbing, heating, and air-conditioning contractors?

In the 12 months through October 23, 2026, G1 CONSTRUCTION, INC., DLJ MANAGEMENT SERVICES, LLC, and WRX CONTRACTING, LLC were the leading DOI plumbing, heating, and air-conditioning prime contractors by positive obligations.

  1. #1

    G1 CONSTRUCTION, INC.

    $3,853,908 in positive obligations

  2. #2

    DLJ MANAGEMENT SERVICES, LLC

    $2,024,048 in positive obligations

  3. #3

    WRX CONTRACTING, LLC

    $895,000 in positive obligations

Rankings use reported USAspending award data.

Did DOI contract obligations increase in the plumbing, heating, and air-conditioning market?

Yes. Measured by net prime contract obligations, reported DOI activity in the plumbing, heating, and air-conditioning market increased 18.3% from $24,998,002 in the preceding 12 months to $29,565,587 in the 12 months through October 23, 2026.

Latest 12 months
$29,565,587
Net prime contract obligations
Preceding 12 months
$24,998,002
Net prime contract obligations
Change
+18.3%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

What recent DOI contract award activity was reported in the plumbing, heating, and air-conditioning market?

Recent DOI contract award activity reported in the plumbing, heating, and air-conditioning market included actions for G1 CONSTRUCTION, INC., DLJ MANAGEMENT SERVICES, LLC, and WRX CONTRACTING, LLC 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 238220?

From October 24, 2025 through October 23, 2026, DOI reported 422 positive-obligation awards for plumbing, heating, and air-conditioning under NAICS 238220. The leading award type was definitive contract. The leading reported procedure was sp1.

Positive-obligation awards
422
Leading reported procedure
Sp1
29% of positive obligations
Leading award type
Definitive Contract
52.1% of positive obligations
Full and open
0%
of positive obligations
Reported parent IDV
2.2%
of positive obligations

Percentages use positive obligations as the denominator.

Apply this research to a live pursuit

Sweetspot connects opportunity qualification, competitive research, capture, and proposal work in one workspace.

See Sweetspot in action

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