Deque Systems

Deque Systems is a digital accessibility platform that provides automated testing, manual auditing, developer tooling, training, and compliance monitoring for WCAG, ADA, Section 508, EAA, and CVAA standards. Named a Leader in The Forrester Wave for Digital Accessibility Platforms Q4 2025 and selected for the Forbes Accessibility 200 list for two consecutive years, Deque serves global enterprises including ADP, Figma, Duolingo, Microsoft, HubSpot, Dynatrace, Freshworks, Macerich, Articulate, Help Scout, and Harland Clarke. The open-source axe-core engine has been downloaded over 4 billion times as the industry standard for automated accessibility testing, detecting up to 80 percent of common WCAG violations with zero false positives. The product suite includes Axe DevTools for IDE and CI-CD integration across web and mobile, Axe Monitor for sitewide compliance tracking and governance reporting, Axe Auditor for guided manual testing workflows, Axe Assistant for AI-powered accessibility guidance with code fixes and verified citations, and the Axe MCP Server enabling AI coding agents to fix accessibility issues during development. Deque University provides role-based training to over 200,000 accessibility professionals through self-paced and instructor-led courses. Deque experts have completed over 8,000 accessibility audits. The annual axe-con conference is the world largest digital accessibility event. Headquartered in Herndon, Virginia as Deque Systems Inc., the company supports EAA compliance preparation across EU member states.