Mark Ruefenacht
Concord, CA
- UEI
- CGVAMY2EAHL3
- CAGE
- 4NMH7
- SAM.gov registration
- Expired
Company facts
- Self-certified in SAM.gov
- Entity structure
- Sole Proprietorship
- NAICS codes registered in SAM.gov
- SAM.gov registration date
- Physical address
- 1400 Willow Pass Ct, Concord, CA 94520, USA
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| OU62-25-new-013 assessment of 200381-0 arizona department of agriculture weights and measures division, 4425 west… | National Institute of Standards and Technology | $6,017 | |
| As lead assessor, the contractor shall conduct an assessment of nvlap lab code 600376-0 texas department of… | National Institute of Standards and Technology | $5,029 | |
| Conduct on-site assessment of nvlap lab code 600105-0, state of alaska metrology laboratory. | National Institute of Standards and Technology | $7,037 | |
| Conduct an assessment of 200468-0, oregon dept. Of agriculture weights & measures metrology lab. | National Institute of Standards and Technology | $4,666 | |
| Conduct on-site assessment of nvlap lab code 600020-0 colorado metrology laboratory | National Institute of Standards and Technology | $4,691 |
About Mark Ruefenacht
Mark Ruefenacht is a sole proprietorship registered in SAM.gov as a for-profit organization, specializing in metrology and measurement science services. Based in Westminster, Colorado, the business is an expert in providing technical assessment and training services primarily to the National Institute of Standards and Technology (NIST), a civilian agency within the Department of Commerce. With a registration in SAM.gov dating back to February 9, 2007, Ruefenacht has established a robust reputation for conducting specialized laboratory assessments and delivering comprehensive metrology training across the United States.
Over the past several years, Ruefenacht has consistently secured federal contract awards from NIST, predominantly focused on conducting National Voluntary Laboratory Accreditation Program (NVLAP) assessments for state metrology laboratories. These contracts, typically structured as firm-fixed-price purchase orders ranging from approximately $3,000 to $7,000, involve on-site evaluations of state agricultural and standards laboratories across multiple states including Arizona, Texas, Oregon, Alaska, Colorado, Washington, and California. In addition to assessment services, Ruefenacht has been awarded contracts for developing and delivering metrology training classes, both in-person and online, with a significant contract in May 2023 valued at $134,731.20 for laboratory training instruction. All of these contracts have been competitively awarded without specific set-aside designations, demonstrating Ruefenacht's competitive positioning in providing specialized technical assessment and training services to federal agencies.
Quick answers
What is Mark Ruefenacht's UEI?
Mark Ruefenacht's Unique Entity ID (UEI) in SAM.gov is CGVAMY2EAHL3.
What is Mark Ruefenacht's CAGE code?
Mark Ruefenacht's CAGE code is 4NMH7.
What is Mark Ruefenacht's primary NAICS code?
Mark Ruefenacht's primary NAICS code is 541690 (Other Scientific and Technical Consulting Services).
Where is Mark Ruefenacht located?
Mark Ruefenacht's physical address in SAM.gov is 1400 Willow Pass Ct, Concord, CA 94520, USA.
Is Mark Ruefenacht registered in SAM.gov?
Mark Ruefenacht's SAM.gov registration expired on September 9, 2026.
What is Mark Ruefenacht's most recent federal award?
Mark Ruefenacht's most recent federal contract award is OU62-25-new-013 assessment of 200381-0 arizona department of agriculture weights and measures division, 4425 west… (1333ND25PNB640510), from National Institute of Standards and Technology, on September 15, 2025.
On GovTribe
See Mark Ruefenacht's full federal record
- Federal contract awards
- Funding analysis by agency, NAICS and set-aside
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