Top GSA plumbing, heating, and air-conditioning contractors contractors
In the 12 months ending Oct 5, 2026, the General Services Administration obligated $10.3M in net prime contract dollars under NAICS 238220, down 12.1% from $11.8M in the preceding 12 months. 15 prime contractors received positive obligations, and 4 of them accounted for 80% of that spend.
Prime contracts funded by the General Services Administration. 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 GSA 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 | Multi Air Services Engineers, Corp | $5.8M | $4.1M | 56.4% | — |
| 2 | DJB Contracting Inc | $1.2M | $0 | 11.8% | New |
| 3 | CMC & Maintenance Inc | $1.0M | $500K | 9.7% | ▲ 2 |
| 4 | M & M Welding & Fabricators Inc | $854K | $0 | 8.2% | New |
| 5 | Consigli Construction Co., Inc. | $672K | $4.1M | 6.5% | ▼ 3 |
| 6 | NS & Associates, LLC | $263K | $0 | 2.5% | New |
| 7 | Bright Regards, LLC | $176K | $1.3M | 1.7% | ▼ 4 |
| 8 | MCC Industries Inc | $154K | $17K | 1.5% | ▲ 8 |
| 9 | G E a Builders Inc. | $80K | $0 | 0.8% | New |
| 10 | HOG Enterprise Group LLC | $39K | $0 | 0.4% | New |
| 11 | Romana Prosperity Construction Corporation | $32K | $442K | 0.3% | ▼ 5 |
| 12 | Blue Spader Contractors Inc | $12K | $220K | 0.1% | ▼ 5 |
| 13 | Corg Management Group LLC | $6K | $969K | 0.1% | ▼ 9 |
| 14 | Kaiva Services, LLC | $3K | −$315K | 0.0% | New |
| 15 | JE Systems Inc | $2K | $0 | 0.0% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Multi Air Services Engineers, Corp$4.1M → $5.8M (+$1.7M) · now #1
- DJB Contracting Inc$0 → $1.2M (+$1.2M) · now #2
- M & M Welding & Fabricators Inc$0 → $854K (+$854K) · now #4
Largest declines
- Consigli Construction Co., Inc.$4.1M → $672K (−$3.4M) · now #5
- Bright Regards, LLC$1.3M → $176K (−$1.1M) · now #7
- Corg Management Group LLC$969K → $6K (−$963K) · now #13
New to this market
4 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| DJB Contracting Inc | Aug 6, 2026 | $1.2M |
| M & M Welding & Fabricators Inc | Sep 28, 2026 | $854K |
| G E a Builders Inc. | May 13, 2026 | $80K |
| HOG Enterprise Group LLC | Sep 29, 2026 | $39K |
Where the money comes from
Funding sub-agencies within the General Services Administration, 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 |
|---|---|---|---|
| Public Buildings Service | $10.3M | $11.8M | Down $1.4M (12.3%) |
| Office of the Chief Information Officer | $39K | $0 | New |
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 |
|---|---|---|---|
| 47PF0022F0296 | Multi Air Services Engineers, Corp 47PF0022F0296 - ROSZKOWSKI USCH BAS REPLACEMENT - 327 S CHURCH ST. ROCKFORD, IL - $1,716,754.19 | $1.7M | Nov 1, 2026 |
| 47PM0325C0015 | Bright Regards, LLC DB SERVICES FOR SERVICES FOR AC UNIT REPLACEMENT AT ROOFTOP ELEVATOR MACHINE ROOM LOCATED AT THE IRS BUILDING. | $1.3M | Nov 22, 2026 |
| 47PF0022F0439 | Multi Air Services Engineers, Corp CONSOLIDATED FACILITIES MANAGEMENT SERVICES FOR THE CUSTOM & BORDER PATROL LAND PORT OF ENTRY LOCATED AT 900 INTERNATIONAL BRIDGE SAULTE SAINT MARIE, MI | $2.1M | Nov 30, 2026 |
| 47PJ0026F0011 | Multi Air Services Engineers, Corp OPTION YEAR 4 SEATTLE COURTHOUSE & TACOMA UNION STATION | $1.7M | Jan 31, 2027 |
| 47PB0023C0008 | Consigli Construction Co., Inc. CONSTRUCTION MANAGER AS CONSTRUCTOR(CMC) HVAC AND FIRE ALARM REPLACEMENT, GIGNOUX COURT HOUSE, PORTLAND, ME | $40.9M | Mar 9, 2027 |
| 47PJ0026F0015 | Multi Air Services Engineers, Corp SPOKANE OPERATIONS AND MAINTENANCE, WASHINGTON | $1.0M | May 31, 2027 |
| 47PH5426P0008 | DJB Contracting Inc EMERGENCY NTP NEOB 10TH FLOOR LEAK REPAIRS | $1.2M | Jan 4, 2028 |
Common questions
Who are the top GSA contractors for NAICS 238220?
In the latest 12 months, Multi Air Services Engineers, Corp ($5.8M), DJB Contracting Inc ($1.2M), CMC & Maintenance Inc ($1.0M) received the most GSA obligations for plumbing, heating, and air-conditioning contractors.
How concentrated is this market?
The eight largest primes held 98.3% of positive obligations, and Multi Air Services Engineers, Corp alone held 56.4%. 4 contractors won their first obligations in this market during the latest 12 months.
Are any large GSA NAICS 238220 contracts ending soon?
7 of the largest awards in this market reach their current end date in the next 18 months. The first is 47PF0022F0296 (Multi Air Services Engineers, Corp, $1.7M obligated), ending Nov 1, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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NAICS 238220 across all agencies
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$22.4MFigures 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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