Mainstream Engineering Corp
Mainstream Engineering Corp received $19.2M in federal prime contract obligations in the 12 months ending Oct 5, 2026, down 23.3% from $25.1M the year before, and $88.0M since FY2022. Its largest customer is the Department of Defense.
See 6 contracts ending in the next 18 months ↓Contractor details
- Unique Entity ID (UEI)
- YR8FJBGXWRR1
- CAGE code
- 0A0B7
- Headquarters
- Rockledge, FL
- Business size
- Small Business
As recorded on this UEI's most recent prime contract action in USAspending.gov. Confirm current registration and certifications in SAM.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year.
Markets where it ranks top 10
Agency and NAICS markets where this UEI is one of the ten largest primes in the latest 12 months.
Top agencies
Funding agencies ranked by obligations since FY2022.
| Funding agency | Latest 12 mo | Since FY2022 |
|---|---|---|
| Department of Defense | $19.2M | $84.5M |
| National Aeronautics and Space Administration | $0 | $3.3M |
| Environmental Protection Agency | $0 | $100K |
Top NAICS codes
Industry codes agencies recorded on this contractor's awards, since FY2022.
| NAICS | Industry | Latest 12 mo | Since FY2022 |
|---|---|---|---|
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $2.0M | $37.6M |
| 333415 | Air-conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | $14.6M | $36.8M |
| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | $0 | $4.8M |
| 541713 | Research and Development in Nanotechnology | $738K | $2.6M |
| 541519 | Other Computer Related Services | $1.5M | $1.5M |
| 335910 | Battery Manufacturing | $0 | $1.3M |
What it sells
Product and service codes (PSC) on this contractor's awards, since FY2022.
| PSC | Description | Since FY2022 |
|---|---|---|
| 4130 | Refrigeration and Air Conditioning Components | $36.8M |
| AC12 | National Defense R&D services; Department of Defense - military; Applied Research | $17.6M |
| AC11 | National Defense R&D services; Department of Defense - military; Basic Research | $5.4M |
| 1720 | Aircraft Launching Equipment | $4.8M |
| AC32 | National Defense R&D services; Defense-Related activities; Applied Research | $4.7M |
| AC22 | National Defense R&D services; Atomic Energy Defense activities; Applied Research | $3.5M |
Contracts ending in the next 18 months
This contractor's largest awards whose current period of performance ends soon. Options and extensions often move these dates.
| Award | Agency | Obligated | Current end |
|---|---|---|---|
| 47QSWC26F0026 | Department of Defense BPA CALL ORDER EECU MAINSPARES | $4.1M | Feb 1, 2027 |
| HQ086022C7150 | Department of Defense SBIR/STTR PHASE II R&D: THERMAL MANAGEMENT SYSTEM FOR COOLED WINDOW | $3.1M | May 11, 2027 |
| FA930025C6019 | Department of Defense RAPID ASCENT PROPELLANT LOADING OPERATIONS | $1.9M | May 13, 2027 |
| 47QSWC26F0105 | Department of Defense BPA CALL ORDER EECU MAINSPARES KITS | $10.2M | Jun 30, 2027 |
| FA865124CB018 | Department of Defense MULTI-APERTURE FRAME WITH COOLED MS-ZNS WINDOWS | $1.8M | Jun 30, 2027 |
| FA237725CB021 | Department of Defense SBIR II PROPOSAL F2-18506-SCALABLE AND FAST EPITAXY OF HIGH QUALITY, SINGLE CRYSTAL ZNSE SUBSTRATES | $1.8M | Jul 23, 2027 |
Recent awards
This contractor's newest prime contract awards, most recent first.
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| SPE8E826P7086 | Department of Defense 8512213873!CONTROL BOX ASSEMBL | $6K | Jun 30, 2026 |
| N0002426C3102 | Department of Defense SBIR N254-P02 NEW AWARD PH I MAINSTREAM ENGINEERING CORPORATION SYSTEMS, INC. NAVSEA | $140K | Jun 25, 2026 |
| 47QSWC26F0105 | Department of Defense BPA CALL ORDER EECU MAINSPARES KITS | $10.2M | Jun 11, 2026 |
| SPE4A726PA673 | Department of Defense 8512093595!SUPPORT,SEAL RETAIN | $90K | Jun 4, 2026 |
| SPE8E826P1004 | Department of Defense 8512118480!COMPRESSOR UNIT,REF | $98K | May 19, 2026 |
| M6785426C5302 | Department of Defense SBIR ATMOSPHERIC WATER GENERATION ON THE MOVE (AWG-OTM) | $1.5M | Mar 31, 2026 |
| SPE7MC26P1979 | Department of Defense 8511982148!VALVE,REGULATING,FL | $4K | Mar 30, 2026 |
| N6833526C0224 | Department of Defense RESEARCH AND DEVELOPMENT. | $140K | Mar 25, 2026 |
Prime contracts (award types A–D) from USAspending.gov through Oct 5, 2026. Subcontracts are not included. Net obligations include deobligations and corrections.

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