Contractor profile
GSI ENVIRONMENTAL INC.
Active registration
UEIJ8M1UGKAFL69
CAGE code0X4P1
Primary NAICS541620
LocationHOUSTON, TX, 77098
Federal obligations$17M
Prime awards23
Active awards22
Latest award actionMar 11, 2026
Federal award activity
Public award recordTop federal customers
- Department of Defense22 awards$17M
- Smithsonian Institution1 awards$46,200
NAICS award mix
- 54171522 awards$17M
- 5416201 awards$46,200
PSC award mix
- AJ1110 awards$8M
- AJ124 awards$4M
- AJ135 awards$3M
- AH521 awards$488,608
- AH131 awards$197,565
- AC221 awards$139,972
- B5101 awards$46,200
Contract vehicles
No supported records are available yet.
Potential recompetes
- Department of Defense$962,599
- Department of Defense$488,608
- Department of Defense$139,972
- Department of Defense$1M
- Department of Defense$1M
- Department of Defense$1M
- Department of Defense$447,015
- Department of Defense$1M
- Department of Defense$2M
- Department of Defense$829,063
Prime award history
| Award | Agency / office | Category | Value | Dates |
|---|---|---|---|---|
| N3943026C5001FRAMEWORKS FOR ASSESSING THE IMPACT OF EXTREME WEATHER EVENTS AT ENVIRONMENTAL RESTORATION SITES | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | NAICS 541715PSC AJ11 | $1M | Mar 11, 2026 – Mar 30, 2029 |
| N3943024C2020BROAD AGENCY ANNOUNCEMENT (BAA) CONTRACT | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | NAICS 541715PSC AJ13 | $375,942 | Sep 16, 2024 – Sep 15, 2027 |
| W912HQ24C0081ESTCP PROJECT ER24-8200. TITLE - TWO PFAS REMEDIATION MODELS FOR UNDERSTANDING AND MANAGING PFAS IN THE SATURATED ZONE. OBJECTIVE - DEVELOP 2 MODELS TO LEVERAGE EXISTING CODE, INTERFACES, AND KNOWLEDGE FOR REMEDIATION DECISION-MAKING | Department of DefenseW4LD USA HECSA | NAICS 541715PSC AJ11 | $876,438 | Aug 7, 2024 – Nov 29, 2027 |
| FA930226P0003SBIR PHASE 1 - SAGE: A SYSTEM FOR AI-GUIDED ENVIRONMENTAL REVIEW | Department of DefenseFA9302 AFTC PZZ | NAICS 541715PSC AC22 | $139,972 | Mar 2, 2026 – Sep 1, 2026 |
| W912HQ25C0041ESTCP PROJECT ER25-8746 "COLLECTING AND COMMUNICATING PFAS REMEDIATION PERFORMANCE VIA A WEB BASED ESTCP TOOL" | Department of DefenseW4LD USA HECSA | NAICS 541715PSC AJ11 | $391,284 | May 5, 2025 – May 5, 2030 |
| N3943025C2002INCREMENTAL FUNDING | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | NAICS 541715PSC AJ13 | $269,988 | Feb 7, 2025 – Feb 9, 2028 |
| W912HQ25C0058ESTCP PROJECT EW25-8539 "CONVECTION-BASED GEOTHERMAL HEAT EXCHANGE FOR HIGH-EFFICIENCY BUILDING HEATING AND COOLING." GOAL - DEMONSTRATE THAT DARCY GEOTHERMAL HEAT EXCHANGE (GHX) SYSTEM IS SUPERIOR TO EXISTING HEATING AND COOLING SYSTEM AT SITE. | Department of DefenseW4LD USA HECSA | NAICS 541715PSC AJ11 | $2M | Aug 20, 2025 – Aug 19, 2030 |
| W912HQ24C0033SERDP PROJECT NO. ER23-3713 | Department of DefenseW4LD USA HECSA | NAICS 541715PSC AJ11 | $1M | Feb 14, 2024 – Feb 9, 2028 |
| W912HQ23C0069SERDP PROJECT ER23-3741 "UNDERSTANDING THE SPATIAL/TEMPORAL NATURE OF AFFF PFAS LOADINGS IN STORMWATER TO DEVELOP TARGETED STORMWATER TREATMENT TECHNOLOGIES" | Department of DefenseW4LD USA HECSA | NAICS 541715PSC AJ11 | $1M | Aug 15, 2023 – Aug 16, 2027 |
| 33314326P00532700ANALYTICAL SERVICES FOR CSS | Smithsonian InstitutionNATIONAL ZOOLOGICAL PARK | NAICS 541620PSC B510 | $46,200 | Jan 14, 2026 – May 30, 2026 |
| N3943022C2419BAA NEED TOPIC NO. 6 DEVELOPMENT OF A PRACTICAL MODELING PLATFORM FOR ASSESSING SALTWATER INTRUSION IMPACTS UNDER FUTURE SEA-LEVEL CHANGE SCENARIOS. | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | NAICS 541715PSC AH52 | $488,608 | Aug 19, 2022 – Mar 31, 2027 |
| W912HQ22C0093FY22 SERDP ER22-3221 GSI | Department of DefenseW4LD USA HECSA | NAICS 541715PSC AJ12 | $1M | Sep 28, 2022 – Sep 27, 2026 |
Award links and obligation totals come from USAspending.gov public records.
Industries and classifications
Public points of contact
MICHAEL J GROSSESTREUERCHIEF FINANCIAL OFFICERGovernment business
STEPHEN D RICHARDSONVICE PRESIDENTAlternate government business
STEPHEN D RICHARDSONVICE PRESIDENTElectronic business
MICHAEL J GROSSESTREUERCHIEF FINANCIAL OFFICERAlternate electronic business
Names and titles are reproduced from the public registration. FedRoster does not guess or enrich personal contact details.