NUCLEAR SOURCES AND SERVICES, INC. (TX)
Registration and award facts
SAM.gov registration as of
- Net obligations since FY2016
- $999.02K
- $999,025under this UEI
- FY2026 obligations
- $0†
- Provisional
- Awards and orders
- 2
- with positive net obligations
- Latest action
- Sep 16, 2025
- SAM.gov registration
- Active
- Registration expiration date Mar 26, 2027
Registration
- Doing business as
- NSSI
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Business start date
- Apr 30, 1971 (55 years)
- Location
- Houston, TX
- State of incorporation
- Tx
- Website
- nssihouston.com
† FY2026 obligations (provisional; DoD awards signed after Jul 26, 2026 are not yet public).
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI CH5EKZMLL4M7. GovChime does not check exclusions.
Performance
Net obligations recorded under this UEI since FY2016. 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
- FY2025: -$0 (de-obligation)
- FY2019: $996,000
- FY2016: $3,025
Total across 3 fiscal years: $999,025
Net de-obligation in that fiscal year (obligations withdrawn).
Top awarding agencies
- Environmental Protection Agency$996,000, 99.7%
- Department of Homeland Security$3,025, 0.3%
Top awarding sub-agencies
- Environmental Protection Agency$996,000, 99.7%
- U.S. Coast Guard$3,025, 0.3%
Top NAICS by obligations
- 562211Hazardous waste treatment and disposal$996,000, 99.7%
- 562112Hazardous waste collection$3,025, 0.3%
Top product and service codes by obligations
- F108Environmental systems protection- environmental remediation$996,000, 99.7%
- 4540Waste disposal equipment$3,025, 0.3%
Capabilities
NAICS codes
- 562211Hazardous Waste Treatment and Disposal(primary)Small
- 562112Hazardous Waste CollectionSmall
Small: small business for that NAICS, self-certified in SAM.gov registration.
SBA certifications
No certification in the SBA profile data.
Product and service codes (PSC)
- 4540Other Services/Supplies
- 6850Other Services/Supplies
- F108Natural Resources & Conservation
- L058Technical Representative Services
Federal Capability Statement
NSSI is a fully-permitted RCRA Part B hazardous waste TSDF providing storage and treatment of mixed hazardous/radioactive wastes. Our primary focus is on safety & service, and our compliance records reflect our commitment to these core values. Our services include, but are not limited to, the following: Hazardous & Non-Hazardous Waste Disposal & Processing, Radioactive Waste Treatment, Storage & Processing, Mixed Waste Treatment & Disposal, Sealed Source Storage & Disposal, Tritium Recycling, and Technical Services – Lab Pack, Sampling, Onsite Services, Waste Profiling. NSSI understands the importance of providing timely & concise service; and, our operating procedures revolve around expediting every step of the process while adhering to the highest standards of safety & compliance.
Capabilities & Services
Contracts
Latest awards and orders
- 68HE0319C0003Definitive contractEnvironmental Protection AgencyLatest action
- HSCG2916P8WH553Purchase orderDepartment of Homeland SecurityU.S. Coast GuardLatest action
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for NUCLEAR SOURCES AND SERVICES, INC. lists a physical address and a separate mailing address, along with 3 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
5711 ETHERIDGE ST
HOUSTON, TX, 77087
USA
Mailing Address
5711 ETHERIDGE ST
HOUSTON, TX, 77087
USA
Government Business Contact
GAMALIEL TORRES
PRESIDENT, RSO
5711 ETHERIDGE STREET
HOUSTON, TX, 77087
USA
Electronic Business Contact
Michael Hsia
Financial Controller
5711 Etheridge Street
HOUSTON, TX, 77087
USA
Government Business Alternate Contact
MICHAEL HSIA
FINANCIAL CONTROLLER
5711 ETHERIDGE STREET
HOUSTON, TX, 77087
USA
Additional Details
As of . Source: SAM.gov Entity Registration.
NUCLEAR SOURCES AND SERVICES, INC. has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires March 26, 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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