Marc Humphrey

Middletown, CA Doing business as Mainstream Water Service

UEI
CPRKH3XQDV63
CAGE
9WDM0
Primary NAICS
561990 All Other Support Services
SAM.gov registration
Active through

Company facts

Self-certified in SAM.gov
  • For Profit Organization
  • Small Business Joint Venture
Entity structure
Sole Proprietorship
SAM.gov registration date
Physical address
18405 Grange Rd, Middletown, CA 95461, USA

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .

Quick answers

Is Marc Humphrey registered in SAM.gov?

Yes. Marc Humphrey's SAM.gov registration is active through November 19, 2026.

On GovTribe

See Marc Humphrey's full federal record

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