Guillaume & Co. LLC d/b/a ADA Access for All

Federally-Credentialed Digital Accessibility & Compliance Services

The specialized practice that delivers both halves of accessibility compliance — the federal-standard technical audit and the regulatory artifacts public entities are required to produce. One firm, one accountable principal, one integrated engagement.

Schedule a 30-minute call Section 504 Rapid Compliance Assessment

Section 504 deadline — extended to 2027

On May 7, 2026, HHS extended the Section 504 web and mobile accessibility deadline by one year. WCAG 2.1 AA conformance is now required by May 11, 2027 for recipients with 15 or more employees, and May 10, 2028 for smaller recipients. The extension moved the technical deadline — it did not pause the obligation: Section 504's nondiscrimination requirement has been in force since 2024, and HHS Office for Civil Rights continues to accept and investigate complaints now.

See the Section 504 Rapid Compliance Assessment

What we do

Productized accessibility services, calibrated to federal regulation

Section 504 leads the practice; the remaining service lines support the full range of public-sector and federal-contractor accessibility obligations. Every engagement is fixed-fee and delivered from a published rate card.

  • Section 504 Rapid Compliance Assessment

    The lead service line. A four-week, fixed-fee WCAG 2.1 AA audit, 45 CFR Part 84 gap analysis, written Compliance Plan, and credentialed attestation — built for HHS Office for Civil Rights response.

  • WCAG 2.1 / 2.2 AA Conformance Audits

    Federally-defensible conformance testing for public-sector and federal-contractor digital properties.

  • ADA Title II Self-Evaluations & Transition Plans

    For state and local government entities, calibrated to the April 2027 and April 2028 deadlines.

  • Section 508 Compliance

    Baseline conformance support for federal agencies and their contractors.

  • VPAT 2.5 / ACR Production

    Accessibility Conformance Reports for software vendors selling to the federal government.

  • Mobile Application Accessibility Audits

    Native iOS and Android testing using VoiceOver and TalkBack.

  • ADA Coordinator Advisory

    Ongoing Title II coordination capacity for entities that need it on retainer.

  • Procurement Language Review & Document Remediation

    Accessibility-requirement review for procurements, and PDF and document remediation through volume contracts.

Full service detail and pricing

Credentials

The certifications behind every attestation

  • DHS Trusted Tester for Web Certificate TT-2604-08987 — 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
  • Federal vendor UEI E2Q7D9LYPM54 — SAM.gov registered, CAGE Code pending

Who we serve

Three regulatory regimes, one specialized firm

HHS-funded entities

Hospitals and health systems, federally qualified health centers, schools of medicine and nursing, public health departments, behavioral health providers, and HHS-grant-funded programs — all now subject to Section 504.

State & local government

Entities carrying ADA Title II web and mobile accessibility obligations under the April 2027 and April 2028 deadlines.

Federal contractors

Vendors and primes responsible for Section 508 conformance on federal civilian delivery work.

Why this firm

What sets the engagement apart

  1. Direct certification

    The engagement principal holds the DHS Trusted Tester for Web credential and performs the testing personally — not subcontracted. The assessor named in the attestation letter is the assessor who did the work.

  2. A combined credential stack

    Federal-standard technical testing and ADA Coordinator policy work in a single firm — so one engagement produces both the conformance audit and the regulatory artifacts a public entity is required to file.

  3. A sole-principal model

    No junior staff handoffs and no subcontracted assessment work. Every test, every deliverable, and every attestation comes from the named principal.

Facing a Section 504 or Title II deadline?

A 30-minute call is enough to scope the engagement and confirm the fixed fee. No obligation.

Schedule a 30-minute call