Sierra Medical Services Alliance
Reno, NV Doing business as Rigg Med-Express Semsa
- UEI
- WNB5WFUEC894
- CAGE
- 6BBN3
- Primary NAICS
- 621910 Ambulance Services
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Tax Exempt)
- Other NAICS codes in SAM.gov
- SAM.gov registration date
- Physical address
- 1325 Airmotive Way #290, Reno, NV 89502, USA
- Website
- sierramed.org
- Founded
- 2000
- Employees
- 51-250
- Estimated annual revenue
- $10M-$50M
- Industry
-
- Health Care
- Health Care Equipment & Services
- Health Care Providers & Services
- Health Care Services
- SIC code
- 45 Transportation by Air
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $454,671 |
| FY2025 | $239,578 |
| FY2024 | $121,552 |
| FY2023 | $124,688 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Justice | $454,671 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
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About the company
Sierra Medical Services Alliance, doing business as Rigg Med-Express Semsa, operates as a nonprofit medical services organization based in Reno, Nevada, providing ambulance and emergency medical transportation services to the Federal Correctional Institution Herlong as a prime contractor competing full-and-open without set-asides.
The vendor's customer base is heavily concentrated. The Federal Correctional Institution Herlong (a component of the Department of Justice Bureau of Prisons) accounts for 55 of 57 recent awards worth $1.2 million combined potential value — virtually all of the vendor's federal footprint. Two outlier awards round out the portfolio: a $738 thousand award from the Department of the Army Materiel Command TACOM Life Cycle Management Command and a $15 thousand award from the Department of the Interior Bureau of Land Management California Region. Combined potential value across all awards totals $2 million, with $1.9 million obligated (96% of potential value).
Capability work centers on emergency ambulance response, inmate medical transportation between facilities, and scheduled ambulance services supporting correctional operations. Representative contracts include a $81,678.75 firm fixed-price purchase order from Federal Correctional Institution Herlong for the fourth quarter of fiscal 2026 (July through September 2026), a $127,895.72 purchase order for the third quarter of fiscal 2026 (April through June 2026), and a $176,158.68 purchase order for the second quarter of fiscal 2026 (January through March 2026). Quarterly award values fluctuate with operational demand, ranging from $8,593.55 to $127,895.72 per quarter. Sierra has maintained a recurring contracting relationship with Federal Correctional Institution Herlong since fiscal year 2023, competing successfully in successive quarterly competitive procurement cycles. The vendor operates as a sole prime with no identified subcontractors across its federal footprint.
Activity has remained steady at two to four awards annually over the past five years. Only one award (valued at $82 thousand) faces ultimate completion within the next twenty-four months, creating minimal near-term recompete pressure. The vendor's award portfolio breaks down by NAICS into ambulance services (40 awards) and special needs transportation (10 awards), with minor exposure in hospital services and consulting. All work occurs at the Federal Correctional Institution Herlong facility in Herlong, California, though one contract references Reno, Nevada as the place of performance for inmate medical transportation. Sierra is registered in the System for Award Management as of March 2011.
Quick answers
Is Sierra Medical Services Alliance registered in SAM.gov?
Yes. Sierra Medical Services Alliance's SAM.gov registration is active through July 2, 2027.
How much has Sierra Medical Services Alliance received in federal contracts?
Federal contracts obligated $239,578 to Sierra Medical Services Alliance in fiscal year 2025 and $940,489 in fiscal years 2023 through 2027.
What is Sierra Medical Services Alliance's most recent federal award?
Sierra Medical Services Alliance's most recent federal contract award is B2 semsa FY26 QTR4 (15B61926P00000061), from Federal Correctional Institution Herlong (BOP), on July 1, 2026.
On GovTribe
See Sierra Medical Services Alliance's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors