Credentials & classifications

The credentials behind every engagement.

ADA Access for All performs manual testing under the U.S. Department of Homeland Security Trusted Tester process — the federal Section 508 testing standard — and pairs it with ADA Coordinator policy expertise. The combination lets a single firm deliver both the technical audit and the regulatory artifacts public entities are required to produce.

Certifications & registrations

  • DHS Trusted Tester for Web (TTv5)Certificate TT-2604-08987
  • ADA Coordinator CertificationUniversity of Missouri / Great Plains ADA Center
  • Digital Accessibility CertificationRocky Mountain ADA Center
  • NYC Minority Business Enterprise (MBE)Certified by NYC Small Business Services (SBS) · MWCERT2025-1083 · valid through December 31, 2030
  • Federal UEI (SAM.gov)E2Q7D9LYPM54
  • NYC Vendor NumberVS00099772
  • Legal EntityGuillaume & Co. LLC · NY domestic LLC · DOS ID 7265133
  • NY State MWBEApplication in process via ESD Fast Track
  • Federal Size StatusSmall Business · Self-Certified Small Disadvantaged Business

Set-aside & small-business credentials

Business classifications

  • Small Business
  • Small Disadvantaged Business (SDB) — self-certified
  • NYC Minority Business Enterprise (MBE) — certified by NYC SBS
  • New York State LLC

What this means for buyers

  • Eligible for City contract set-asides and bid preferences
  • Listed in the NYC Online Directory of Certified Businesses
  • Supports prime contractors' M/WBE participation goals

Put these credentials to work

Whether you're a procurement officer vetting a vendor or an organization that needs a defensible audit, a short call clarifies fit and scope.

Schedule a call Email the practice