Rhithron Associates Inc
Rhithron Associates Inc is a small business in Missoula, MT registered on SAM.gov to bid on federal contracts. It has won about $68,309 in federal prime contracts since fiscal year 2024, according to USAspending.gov.
- UEI
- D21EKF7FZJ25
- CAGE code
- 3FQ91
- SAM.gov registration
- Active
Registration details
| Legal business name | Rhithron Associates Inc |
|---|---|
| Unique Entity ID (UEI) | D21EKF7FZJ25 |
| CAGE code | 3FQ91 |
| Location | Missoula, MT |
| SAM.gov registration | Active through Sep 15, 2027 |
| Business started | 2002 |
| Primary NAICS code | 541620: Environmental Consulting Services |
| Website | www.rhithron.com |
Certifications and business types
- Small disadvantaged business (self-reported in SAM.gov)
- Women-owned (self-reported in SAM.gov)
- Women-owned small business (self-reported in SAM.gov)
SBA certifications let a business compete for set-aside contracts. See set-aside contracts explained.
Federal contract history
USAspending.gov shows no federal prime contracts for this UEI in the last five years. Many small businesses start as subcontractors to larger firms; see how to become a government subcontractor.
NAICS codes Rhithron Associates Inc is small under
On its SAM.gov registration, Rhithron Associates Inc meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
Open contracts in Rhithron Associates Inc's NAICS codes
72 open federal opportunities on SAM.gov use a NAICS code Rhithron Associates Inc is small under. These are due soonest.
- Hickman Borings Drilling and Testing
Due in 2 daysOct 12, 2026
- Notice of Intent to Sole Source – National Marrow Donor Program – service agreement
✦ The NIH Clinical Center in Bethesda, MD plans to buy unrelated donor search and stem cell transplant support services from the National Marrow Donor Program (NMDP) without…
Due in 2 daysOct 12, 2026
- NEW: Quality Water Testing North Texas
Due in 2 daysOct 12, 2026
- Fuel Tank Inspections & Maint/Diesel Fuel Testing and Polishing Service
Due in 2 daysOct 12, 2026
- Legionella Water Testing
✦ The VA's Network Contracting Office 22 (Long Beach, CA) wants a certified service-disabled veteran-owned small business to run water-safety testing and monitoring (Legionella,…
Due in 3 daysOct 13, 2026
Similar small businesses
Other small businesses with the same primary NAICS code (541620) that have won federal contracts, starting with Montana:
- Leisnoi Diversified Services, LLC, Saint Ignatius, MT
- Synergy Resource Solutions, Inc., Belgrade, MT
- Hauer Environmental LLC, Missoula, MT
- S C & a Inc, Arlington, VA
- Brice Solutions, LLC, Anchorage, AK
- Chenega Reliable Services LLC, San Antonio, TX
Frequently asked questions
What is Rhithron Associates Inc's CAGE code?
Rhithron Associates Inc's CAGE code is 3FQ91. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Rhithron Associates Inc's UEI?
Rhithron Associates Inc's Unique Entity ID (UEI) is D21EKF7FZJ25. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Rhithron Associates Inc's SAM.gov registration active?
Yes, as of the latest SAM.gov public data, Rhithron Associates Inc's registration is active through sep 15, 2027. Registrations are renewed every year.
Is Rhithron Associates Inc a small business?
Rhithron Associates Inc is registered on SAM.gov as small under 4 NAICS codes, including its primary code, 541620. Size is set per NAICS code, so a business can be small for some contracts and not others.
Keep going
- Look up another business's CAGE code or UEI
- Check a SAM.gov registration's status
- How to become a government subcontractor
Registration details come from SAM.gov's public entity extract and contract figures from USAspending.gov. Contact names and street addresses are left out. To change these details, update the registration on SAM.gov. To ask us to remove this page, email hello@fedready.us.