Federal Contractor Profile
Gsi Environmental INC.
$37M obligated·61 awards·2 agencies·7 NAICS
Federal Contracts
Showing contracts 1–50 of 127 total. Sorted by action date, most recent first. Excludes $0 modifications.
| Date | Agency | PIID | NAICS | Description | Amount |
|---|---|---|---|---|---|
| Jan 22, 2026 | Department of DefenseW4LD USA HECSA | W912HQ23C0069 | 541715 | SERDP PROJECT ER23-3741 "UNDERSTANDING THE SPATIAL/TEMPORAL NATURE OF AFFF PFAS LOADINGS IN STORMWATER TO DEVELOP TARGETED STORMWATER TREATMENT TECHNOLOGIES" | $150K |
| Dec 30, 2025 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943022C2419 | 541715 | BAA NEED TOPIC NO. 6 DEVELOPMENT OF A PRACTICAL MODELING PLATFORM FOR ASSESSING SALTWATER INTRUSION IMPACTS UNDER FUTURE SEA-LEVEL CHANGE SCENARIOS. | $190K |
| Dec 15, 2025 | Department of DefenseW4LD USA HECSA | W912HQ22C0093 | 541715 | FY22 SERDP ER22-3221 GSI | $177K |
| Dec 1, 2025 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943022C2419 | 541715 | BAA NEED TOPIC NO. 6 DEVELOPMENT OF A PRACTICAL MODELING PLATFORM FOR ASSESSING SALTWATER INTRUSION IMPACTS UNDER FUTURE SEA-LEVEL CHANGE SCENARIOS. | $38K |
| Sep 23, 2025 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943024C2020 | 541715 | BROAD AGENCY ANNOUNCEMENT (BAA) CONTRACT | $45K |
| Sep 22, 2025 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943022C2409 | 541715 | CLOSED LOOP IN SITU SOIL FLUSHING AT PFAS IMPACTED SOURCES BASE EFFORT | $48K |
| Sep 5, 2025 | Department of DefenseW4LD USA HECSA | W912HQ23C0083 | 541715 | ESTCP PROJECT ER23-7754 "ASSESSING MASS DISCHARGE FROM PFAS VADOSE VS. SATURATED ZONE VS. MATRIX DIFFUSION SOURCES TO IMPROVE CONCEPTUAL MODELS AND DOD RI/FS" | $240K |
| Sep 4, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0041 | 541715 | ESTCP PROJECT ER25-8746 "COLLECTING AND COMMUNICATING PFAS REMEDIATION PERFORMANCE VIA A WEB BASED ESTCP TOOL" | $159K |
| Sep 4, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0045 | 541715 | ESTCP ER25-8813 ASSESSING PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) BACKGROUND CONCENTRATIONS AND MASS DISCHARGES AS A FRAMEWORK FOR IMPROVED SITE MANAGEMENT | $471K |
| Sep 4, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0058 | 541715 | ESTCP 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. | $219K |
| Sep 3, 2025 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943024C2013 | 541715 | SERDP ER23-C4-3904 ATTENUATION MECHANISM | $45K |
| Aug 20, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0058 | 541715 | ESTCP 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. | $102K |
| Aug 8, 2025 | Department of DefenseW4LD USA HECSA | W912HQ24C0033 | 541715 | SERDP PROJECT NO. ER23-3713 | $181K |
| Aug 6, 2025 | Department of DefenseW4LD USA HECSA | W912HQ23C0069 | 541715 | SERDP PROJECT ER23-3741 "UNDERSTANDING THE SPATIAL/TEMPORAL NATURE OF AFFF PFAS LOADINGS IN STORMWATER TO DEVELOP TARGETED STORMWATER TREATMENT TECHNOLOGIES" | $382K |
| Jul 22, 2025 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943025C0004 | 541715 | NEED NO.2 CONSERVATION OF NATURAL RESOURCES | $351K |
| May 14, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0045 | 541715 | ESTCP ER25-8813 ASSESSING PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) BACKGROUND CONCENTRATIONS AND MASS DISCHARGES AS A FRAMEWORK FOR IMPROVED SITE MANAGEMENT | $160K |
| May 8, 2025 | Department of DefenseW4LD USA HECSA | W912HQ23C0083 | 541715 | ESTCP PROJECT ER23-7754 "ASSESSING MASS DISCHARGE FROM PFAS VADOSE VS. SATURATED ZONE VS. MATRIX DIFFUSION SOURCES TO IMPROVE CONCEPTUAL MODELS AND DOD RI/FS" | $240K |
| May 6, 2025 | Department of DefenseW4LD USA HECSA | W912HQ24C0081 | 541715 | ESTCP 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 | $339K |
| May 6, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0013 | 541715 | ESTCP PROJECT ER24-8358 TITLE: BIOACCUMULATION PROTOCOL FOR INTEGRATING RESULTS FROM ABIOTIC AND BIOTIC MATERIALS WITH GEOCHEMISTRY FOR SITE-SPECIFIC MANAGEMENT AT DOD SITES | $191K |
| May 5, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0041 | 541715 | ESTCP PROJECT ER25-8746 "COLLECTING AND COMMUNICATING PFAS REMEDIATION PERFORMANCE VIA A WEB BASED ESTCP TOOL" | $119K |
| Apr 10, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0028 | 541715 | ESTCP PROJECT ER24-8963 "THERMAL STEAM PLASMA TREATMENT OF AFFF CONCENTRATE BY DIRECT INJECTION" TO DEMONSTRATE THE EFFECTIVENESS OF A NOVEL THERMAL STEAM PLASMA TECHNOLOGY FOR THE DESTRUCTION OF FLUORINATED SURFACTANTS IN AFFF CONCENTRATES. | $1.1M |
| Mar 19, 2025 | Department of DefenseW4LD USA HECSA | W912HQ24C0081 | 541715 | ESTCP 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 | $50K |
| Mar 19, 2025 | Department of DefenseW4LD USA HECSA | W912HQ25C0013 | 541715 | ESTCP PROJECT ER24-8358 TITLE: BIOACCUMULATION PROTOCOL FOR INTEGRATING RESULTS FROM ABIOTIC AND BIOTIC MATERIALS WITH GEOCHEMISTRY FOR SITE-SPECIFIC MANAGEMENT AT DOD SITES | $425K |
| Feb 10, 2025 | Department of DefenseW4LD USA HECSA | W912HQ24C0033 | 541715 | SERDP PROJECT NO. ER23-3713 | $305K |
| Feb 7, 2025 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943025C2002 | 541715 | INCREMENTAL FUNDING | $108K |
| Dec 5, 2024 | Department of DefenseW4LD USA HECSA | W912HQ23C0012 | 541715 | ER22-7363 GSI ENVIRONMENTAL | $155K |
| Dec 2, 2024 | Department of DefenseW4LD USA HECSA | W912HQ25C0013 | 541715 | ESTCP PROJECT ER24-8358 TITLE: BIOACCUMULATION PROTOCOL FOR INTEGRATING RESULTS FROM ABIOTIC AND BIOTIC MATERIALS WITH GEOCHEMISTRY FOR SITE-SPECIFIC MANAGEMENT AT DOD SITES | $50K |
| Oct 10, 2024 | Department of DefenseW4LD USA HECSA | W912HQ23C0012 | 541715 | ER22-7363 GSI ENVIRONMENTAL | $208K |
| Sep 11, 2024 | Department of DefenseW4LD USA HECSA | W912HQ24C0081 | 541715 | ESTCP 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 | $116K |
| Sep 10, 2024 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943024C2020 | 541715 | BROAD AGENCY ANNOUNCEMENT (BAA) CONTRACT | $31K |
| Aug 23, 2024 | Department of DefenseW4LD USA HECSA | W912HQ24C0061 | 541715 | ESTCP PROJECT ER23-7936 IN SITU VESSEL PERMEABLE REACTIVE BARRIER WITH NEW HIGH EFFICIENCY, REPLACEABLE SORBENTS FOR PFAS PLUME CONTROL | $2.2M |
| Aug 21, 2024 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943022C2419 | 541715 | BAA NEED TOPIC NO. 6 DEVELOPMENT OF A PRACTICAL MODELING PLATFORM FOR ASSESSING SALTWATER INTRUSION IMPACTS UNDER FUTURE SEA-LEVEL CHANGE SCENARIOS. | $50K |
| Aug 7, 2024 | Department of DefenseW4LD USA HECSA | W912HQ24C0081 | 541715 | ESTCP 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 | $50K |
| Jul 26, 2024 | Department of DefenseW4LD USA HECSA | W912HQ23C0069 | 541715 | SERDP PROJECT ER23-3741 "UNDERSTANDING THE SPATIAL/TEMPORAL NATURE OF AFFF PFAS LOADINGS IN STORMWATER TO DEVELOP TARGETED STORMWATER TREATMENT TECHNOLOGIES" | $100K |
| Jul 16, 2024 | Department of DefenseW4LD USA HECSA | W912HQ24C0049 | 541715 | ESTCP PROJECT ER24-8156 THERMAL STEAM PLASMA TREATMENT OF VOLATILE PFAS EMISSIONS FROM THERMAL DESTRUCTIVE TECHNOLOGIES | $1.4M |
| May 28, 2024 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943022C2409 | 541715 | CLOSED LOOP IN SITU SOIL FLUSHING AT PFAS IMPACTED SOURCES BASE EFFORT | $125K |
| Apr 30, 2024 | Department of DefenseW4LD USA HECSA | W912HQ22C0005 | 541715 | ER21-5136 GSI ENVIRONMENTAL INC | $245K |
| Apr 19, 2024 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943024C2013 | 541715 | SERDP ER23-C4-3904 ATTENUATION MECHANISM | $153K |
| Apr 1, 2024 | Department of DefenseW4LD USA HECSA | W912HQ24C0025 | 541715 | ESTCP PROJECT ER23-7892 TITLE: LAST PIECE OF THE PUZZLE: SEPARATING AND DESTROYING SHORT- CHAINED PFAS FROM WASTE STREAMS BY COMBINING COLLOIDAL GAS APHRONS (CGAS) WITH PLASMA | $860K |
| Feb 13, 2024 | Department of DefenseW4LD USA HECSA | W912HQ24C0033 | 541715 | SERDP PROJECT NO. ER23-3713 | $347K |
| Jan 26, 2024 | Department of DefenseW4LD USA HECSA | W912HQ24C0025 | 541715 | ESTCP PROJECT ER23-7892 TITLE: LAST PIECE OF THE PUZZLE: SEPARATING AND DESTROYING SHORT- CHAINED PFAS FROM WASTE STREAMS BY COMBINING COLLOIDAL GAS APHRONS (CGAS) WITH PLASMA | $300K |
| Dec 13, 2023 | Department of DefenseW4LD USA HECSA | W912HQ22C0093 | 541715 | FY22 SERDP ER22-3221 GSI | $482K |
| Nov 16, 2023 | Department of DefenseW4LD USA HECSA | W912HQ22C0073 | 541715 | ESTCP PROJECT ER22-7381 | $436K |
| Nov 13, 2023 | Department of DefenseW4LD USA HECSA | W912HQ22C0073 | 541715 | ESTCP PROJECT ER22-7381 | $150K |
| Sep 26, 2023 | Department of DefenseW4LD USA HECSA | W912HQ23P0085 | 541715 | ESTCP PROJECT ER23-7898 | $182K |
| Sep 15, 2023 | Department of DefenseNAVFAC SYSTEMS AND EXP WARFARE CTR | N3943022C2442 | 541715 | BROAD AGENCY ANNOUNCEMENT (BAA) FOR INNOVATIVE ENVIRONMENTAL TECHNOLOGIES AND METHODOLOGIES. PFAS DESTRUCTIVE TECHNOLOGIES | $119K |
| Aug 25, 2023 | Department of DefenseW4LD USA HECSA | W912HQ23C0083 | 541715 | ESTCP PROJECT ER23-7754 "ASSESSING MASS DISCHARGE FROM PFAS VADOSE VS. SATURATED ZONE VS. MATRIX DIFFUSION SOURCES TO IMPROVE CONCEPTUAL MODELS AND DOD RI/FS" | $553K |
| Aug 17, 2023 | Department of DefenseW4LD USA HECSA | W912HQ22C0073 | 541715 | ESTCP PROJECT ER22-7381 | $111K |
| Aug 15, 2023 | Department of DefenseW4LD USA HECSA | W912HQ23C0069 | 541715 | SERDP PROJECT ER23-3741 "UNDERSTANDING THE SPATIAL/TEMPORAL NATURE OF AFFF PFAS LOADINGS IN STORMWATER TO DEVELOP TARGETED STORMWATER TREATMENT TECHNOLOGIES" | $358K |
| Jul 14, 2023 | Department of DefenseW4LD USA HECSA | W912HQ22C0070 | 541714 | ER22-7422 GSI ENVIRONMENTAL. TITLE BUILDING THE NEXT GENERATION LONG-TERM MONITORING OPTIMIZATION TOOLBOX REVITALIZING THE MAROS PLATFORM ON THE WEB | $251K |
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