GSI ENVIRONMENTAL INC. (TX)
Registration and award facts
SAM.gov registration as of
- Net obligations since FY2008
- $50.59M
- $50,589,393under this UEI
- FY2026 obligations
- $4.07M†
- $4,065,908Provisional
- Awards and orders
- 77
- with positive net obligations1 IDV vehicle held
- Latest action
- Jul 20, 2026
- SAM.gov registration
- Active
- Registration expiration date Jan 21, 2027
Registration
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Jul 11, 1986 (40 years)
- Location
- Houston, TX
- State of incorporation
- Texas
- Website
- gsi-net.com
† FY2026 obligations (provisional; DoD awards signed after Jul 25, 2026 are not yet public).
Contract actions that the Department of Defense both funds and awards are withheld at the source for 90 days, so DoD awards signed after Jul 25, 2026 are not yet public.
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI J8M1UGKAFL69. GovChime does not check exclusions.
Performance
Net obligations recorded under this UEI since FY2008. Top lists show the largest five by share of this vendor's net obligations; the shares do not sum to 100%.
Net obligations by fiscal year of action
- FY2026: $4,065,908 (provisional)
- FY2025: $5,706,802
- FY2024: $6,980,481
- FY2023: $4,634,943
- FY2022: $7,126,935
- FY2021: $893,144
- FY2020: $934,680
- FY2019: $1,526,409
Show all 19 yearsEarlier years (FY2008–FY2018)
- FY2018: $4,128,986
- FY2017: $2,290,094
- FY2016: $1,945,380
- FY2015: $2,562,452
- FY2014: $821,049
- FY2013: $1,154,996
- FY2012: $840,337
- FY2011: $1,358,431
- FY2010: $2,006,507
- FY2009: $1,240,526
- FY2008: $371,334
Total across 19 fiscal years: $50,589,393
Top awarding agencies
- Department of Defense$50,543,193, 99.9%
- Smithsonian Institution$46,200, 0.1%
Top awarding sub-agencies
- Department of the Army$31,901,898, 63.1%
- Department of the Navy$11,257,044, 22.3%
- Department of the Air Force$7,387,061, 14.6%
- Smithsonian Institution$46,200, 0.1%
Top NAICS by obligations
- 541713Research and development in nanotechnology$1,691,967, 3.3%
- 541620Environmental consulting services$355,503, 0.7%
Top product and service codes by obligations
- AJ11General science and technology r&d services; general science and technology; basic research$14,221,794, 28.1%
- AH91R&d- environmental protection: other (basic research)$10,297,753, 20.4%
- AJ12General science and technology r&d services; general science and technology; applied research$7,077,004, 14.0%
- AJ34R&d- general science/technology: environmental sciences (engineering development)$4,768,614, 9.4%
- AJ13General science & technology r&d svcs; general science & technology; experimental development$3,926,977, 7.8%
Capabilities
NAICS codes
- 541620Environmental Consulting Services(primary)
- 115310E
- 541330E
- 541715E
- 562910E
SBA certifications
No certification in the SBA profile data.
Federal Capability Statement
GSI Environmental Inc. (GSI) is an environmental engineering consulting firm with over 32 years of experience specializing in environmental strategic planning; data management and analysis; and software development and numerical groundwater modeling for water agencies, districts, industry (oil and gas, chemical, manufacturing), government agencies, research and development organizations, utilities, trade organizations, and law firms. From our offices in Texas and California, our more than 90 employees have worked worldwide, providing innovative solutions to soil, groundwater and surface water management and contamination problems and associated regulatory issues. We emphasize careful data collection and analysis and technical ingenuity in all our work to provide solutions that are both efficient and effective.
Capabilities & Services
Contracts
Latest awards and orders
- W912HQ24C0033Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
- W912HQ24C0049Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
- W912HQ25C0045Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
- W912HQ25C0058Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
- W912HQ23C0069Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
- W912HQ25C0028Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
- W912HQ23P0085Purchase orderDepartment of DefenseDepartment of the ArmyLatest action
- W912HQ22C0093Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
- W912HQ25C0041Definitive contractDepartment of DefenseDepartment of the ArmyLatest action
- FA890322C0026Definitive contractDepartment of DefenseDepartment of the Air ForceLatest action
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for GSI ENVIRONMENTAL INC. lists a physical address and a separate mailing address, along with 6 verified points of contact. Past Performance contacts are the recommended outreach channel for due-diligence references; Government Business contacts handle procurement-facing correspondence.
Source: SAM.gov entity registration. Contacts displaying numeric or placeholder names have been filtered (defense-in-depth).
Physical Address
2211 NORFOLK ST
STE 1000
HOUSTON, TX, 77098
USA
Mailing Address
2211 NORFOLK SUITE 1000
HOUSTON, TX, 77098
USA
Government Business Contact
MICHAEL J GROSSESTREUER
CHIEF FINANCIAL OFFICER
2211 NORFOLK ST
SUITE 1000
HOUSTON, TX, 78759
USA
Electronic Business Contact
STEPHEN D RICHARDSON
VICE PRESIDENT
10801-2 N MOPAC
SUITE 350
AUSTIN, TX, 78759
USA
Past Performance Contact
BONANI LANGAN
SENIOR ENGINEER
10801-2 N MOPAC
SUITE 350
AUSTIN, TX, 78759
USA
Government Business Alternate Contact
STEPHEN D RICHARDSON
VICE PRESIDENT
10801-2 N MOPAC
SUITE 350
AUSTIN, TX, 78759
USA
Electronic Business Alternate Contact
MICHAEL J GROSSESTREUER
CHIEF FINANCIAL OFFICER
2211 NORFOLK ST
SUITE 1000
HOUSTON, TX, 78759
USA
Past Performance Alternate Contact
0004 115310NNN ~541330NNNN~541715YYYY~562910NY N
0000
0001
E&Y
Additional Details
As of . Source: SAM.gov Entity Registration.
GSI ENVIRONMENTAL INC. has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires January 21, 2027.
Source: SAM.gov entity registration (FAR responses, registration status). Always verify active exclusions against the authoritative record on SAM.gov before contract award.
Compliance & Risk Assessment
Source: SAM.gov FAR responsesSuspension/Debarment Status
SAM.gov registration reports no active exclusion
Public Display
Entity information is publicly displayed
Disaster Relief Registry
Registered for disaster relief contracting — Nationwide
Bonding Information
No bonding information provided
EDI
Not declared in SAM.gov
Business Structure
Source: SAM.govRegistration Details
Source: SAM.govInitial Registration
Last Update
Registration Activation
Fiscal Year End
Country of Incorporation
Congressional District
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