Federal vendor identifiers

Registration data

Unique Entity ID (UEI)

E2Q7D9LYPM54

SAM.gov Registered — CAGE Code pending DLA assignment
Primary NAICS 541511 — Custom Computer Programming Services
Secondary NAICS 541512 · 541519 · 541611 · 541990
Legal entity Guillaume & Co. LLC — NY domestic LLC, DOS ID 7265133
NYC Vendor Number VS00099772
Headquarters Stony Brook, New York

Certifications

Credentials behind the firm's work

  • DHS Trusted Tester for Web Certificate TT-2604-08987 (issued April 22, 2026) — the federal Section 508 testing standard
  • ADA Coordinator Certification University of Missouri
  • Digital Accessibility Certification Rocky Mountain ADA Center
  • NYC Minority Business Enterprise Certification MWCERT2025-1083 — valid through December 31, 2030
  • NY State MWBE Application in process via Empire State Development fast-track

Business classifications

How the firm is classified

  • Small Business
  • Self-Certified Small Disadvantaged Business (SDB)
  • NYC Minority Business Enterprise (MBE)
  • Black American Owned
  • New York State LLC

How to contract with us

ADA Access for All is a registered federal vendor and is available for direct award, subcontracting, and teaming on accessibility scopes — Section 504, Section 508, ADA Title II, WCAG conformance testing, VPAT production, and document remediation. State and local procurement is supported through the firm's New York registrations, including its NYC Vendor Number and NYC MBE certification.

For federal primes without an internal accessibility practice, the firm is available as a specialty subcontractor: the engagement principal holds the DHS Trusted Tester for Web credential and performs the testing personally, meeting the federal standard cited in Section508.gov procurement guidance.

Federal Capability Statement

Identifiers, core competencies, and credentials on one page — formatted for procurement review.

Download capability statement (PDF)

Evaluating ADA Access for All for a contract or subcontract?

A 30-minute call is enough to confirm fit, scope, and the fixed fee.

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