Mark Ruefenacht

Concord, CA

UEI
CGVAMY2EAHL3
CAGE
4NMH7
Primary NAICS
541690 Other Scientific and Technical Consulting Services
SAM.gov registration
Expired

Company facts

Self-certified in SAM.gov
  • For Profit Organization
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

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.

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See Mark Ruefenacht's full federal record

  • Federal contract awards
  • Funding analysis by agency, NAICS and set-aside
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