Top DOJ plumbing, heating, and air-conditioning contractors contractors
In the 12 months ending Oct 5, 2026, the Department of Justice obligated $52.7M in net prime contract dollars under NAICS 238220, up 143.7% from $21.6M in the preceding 12 months. 139 prime contractors received positive obligations, and 14 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Justice. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DOJ contractors for NAICS 238220
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Sealaska Secure Construction Solutions, LLC | $9.3M | $0 | 17.5% | New |
| 2 | South Alabama Contracting LLC | $6.1M | $0 | 11.6% | New |
| 3 | Blasco Construction Corp | $6.0M | $1.2M | 11.3% | ▲ 1 |
| 4 | Gustav Keoni | $5.0M | $0 | 9.5% | New |
| 5 | Marrero, Couvillon & Associates, L.L.C. | $4.2M | $0 | 7.9% | New |
| 6 | Peachtree Mechanical, Inc. | $2.8M | $0 | 5.3% | New |
| 7 | NBT Construction and Supply, LLC | $2.8M | $1.9M | 5.2% | ▼ 4 |
| 8 | Dawson MCG, Inc. | $1.9M | $0 | 3.6% | New |
| 9 | Voris Mechanical Inc | $1.2M | $0 | 2.2% | New |
| 10 | Precision & Co Contractors LLC | $1.1M | $0 | 2.1% | New |
| 11 | Today Plumbing Services Corp. | $714K | $0 | 1.4% | New |
| 12 | Seneca Federal Solutions, LLC | $671K | $0 | 1.3% | New |
| 13 | Mechanical Cooling Services, LLC | $510K | $722K | 1.0% | ▼ 4 |
| 14 | Michael Kost | $499K | $371K | 0.9% | ▲ 1 |
| 15 | Seasa & Parks LLC | $471K | $0 | 0.9% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Sealaska Secure Construction Solutions, LLC$0 → $9.3M (+$9.3M) · now #1
- South Alabama Contracting LLC$0 → $6.1M (+$6.1M) · now #2
- Gustav Keoni$0 → $5.0M (+$5.0M) · now #4
Largest declines
- Utility Systems Solutions, Inc.$3.8M → $127K (−$3.7M) · now #42
- Everson Peachtree, LLC$2.7M → $12K (−$2.7M) · now #112
- Nova Facility Solutions Inc$950K → $0 (−$950K) · no latest-period obligations
New to this market
69 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Sealaska Secure Construction Solutions, LLC | Sep 18, 2026 | $9.3M |
| South Alabama Contracting LLC | Nov 20, 2025 | $6.1M |
| Marrero, Couvillon & Associates, L.L.C. | Feb 25, 2026 | $4.2M |
| Dawson MCG, Inc. | Sep 18, 2026 | $1.9M |
| Voris Mechanical Inc | Feb 24, 2026 | $1.2M |
| Precision & Co Contractors LLC | Aug 24, 2026 | $1.1M |
| Today Plumbing Services Corp. | Dec 1, 2025 | $714K |
| Seneca Federal Solutions, LLC | May 6, 2026 | $671K |
Where the money comes from
Funding sub-agencies within the Department of Justice, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Federal Prison System / Bureau of Prisons | $51.7M | $18.3M | Up $33.4M (182.7%) |
| U.S. Marshals Service | $310K | $430K | Down $120K (28.0%) |
| Drug Enforcement Administration | $236K | $866K | Down $630K (72.7%) |
| Federal Prison Industries / Unicor | $235K | $1.4M | Down $1.1M (82.6%) |
| Federal Bureau of Investigation | $143K | $200K | Down $58K (28.8%) |
| Offices, Boards and Divisions | $93K | $249K | Down $157K (62.8%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 15BFA025C00000026 | MFS Construction LLC THE SELECTED CONTRACTOR SHALL PROVIDE ALL MATERIALS, LABOR, AND EQUIPMENT TO COMPLETE THE PROJECT CONSTRUCT FREEZER/COOLER BLDG. 5754. | $1.1M | Oct 29, 2026 |
| 15BFA025C00000028 | Utility Systems Solutions, Inc. FCC TUCSON_ REPLACE CHILLERS AND COOLING SYSTEM (PROJECT 25Z6AC9) | $3.8M | Nov 20, 2026 |
| 15DDHQ22P00000094 | Purdy Group LLC PREVENTIVE MAINTENANCE & REPAIRS FOR CRITICAL HQ EQUIPMENT | $3.4M | Dec 24, 2026 |
| 15BBNF26C00000014 | Peachtree Mechanical, Inc. FCI BENNETTSVILLE - REPLACE CHILLERS 1 & 3 - 25Z3AJ1 | $2.8M | Jan 3, 2027 |
| 15BFA024C00000035 | Blasco Construction Corp FCI DANBURY - REPLACE STEAM BOILERS - 22Z2AJ9 | $3.9M | Jan 21, 2027 |
| 15BBNF26C00000030 | Marrero, Couvillon & Associates, L.L.C. B&F - FDC MIAMI - REPLACE CHILLERS 1, 2, & 3 - 24Z3AY2 | $4.2M | Feb 24, 2027 |
| 15BBNF26C30700001 | South Alabama Contracting LLC EO14398 (OB3) REPLACE CHILLERS AND WATER TOWERS AT FCI JESUP | $4.5M | Aug 5, 2027 |
| 15BBNF26C70000005 | Blasco Construction Corp 26Z5AJ4 REPLACE/REPAIR BOILERS MULTIPLE LOCATIONS EO 14398 | $5.7M | Sep 14, 2027 |
| 15BNAS26C00000252 | Dawson MCG, Inc. DELIVERY OF TWO (2) TRAILER-MOUNTED MOBILE AIR-COOLED CHILLER UNITS WITH INTEGRATED PUMP PACKAGES, HOSES, AND ELECTRICAL CABLES. | $1.9M | Sep 20, 2027 |
| 15BBNF26C61600001 | Gustav Keoni EMERGENCY REPLACE REFRIGERANT UNITS FCC VICTORVILLE PROJECT # 26Z6AX1 EO 14398 | $5.0M | Oct 22, 2027 |
Common questions
Who are the top DOJ contractors for NAICS 238220?
In the latest 12 months, Sealaska Secure Construction Solutions, LLC ($9.3M), South Alabama Contracting LLC ($6.1M), Blasco Construction Corp ($6.0M) received the most DOJ obligations for plumbing, heating, and air-conditioning contractors.
How concentrated is this market?
The eight largest primes held 72.0% of positive obligations, and Sealaska Secure Construction Solutions, LLC alone held 17.5%. 69 contractors won their first obligations in this market during the latest 12 months.
Are any large DOJ NAICS 238220 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is 15BFA025C00000026 (MFS Construction LLC, $1.1M obligated), ending Oct 29, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$21.7MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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