About Deque Systems, Inc.

Digital equality. It's our mission, our vision, and our passion.

    We take our leadership role seriously – our audits, our software tools, and our commitment to helping advance digital accessibility.

    We have helped thousands of companies from technology leaders like Google and Microsoft, to many large US banks and insurance companies, retailers, airlines, hotel chains, and the biggest government agencies. We are humbled by their trust and praise.

    Let us help your development teams make your website and mobile apps accessible. We can help them get it right the first time, even if they have never done it before. And when you are ready, your development teams can use our products and take Deque University Courses so they can build and maintain accessible websites and mobile apps on their own.

    Deque Memberships and Certifications

    Let’s broaden your customer base and make practicing accessibility easy at the same time.

    — Preety Kumar CEO, Deque Systems

    Our position in the industry

    Earned developer respect

    With over 250,000 installed extensions, Deque tools are highly adopted and regarded.

    Most certified practicing experts

    Deque experts hold a collective 95 CPACC, WAS, & CPWA certifications issued by the IAAP. More than any accessibility testing company in the world.

    Most standards contributors

    15 Deque employees work in W3C Accessibility Working Groups, shaping the future of digital accessibility testing.

    World class training

    Deque University’s world-class digital accessibility training boasts over 60,000 subscribers.

    A11y for Good logo

    Our Contributions to the Accessibility Community

    The accessibility community was collectively struggling to agree on a common accessibility testing ruleset. We decided to make ours open source in 2015 and have since seen over 60 Million downloads as it’s made its way to becoming the standard of the industry. Coupled with a free browser extension, axe is used by over 100,000 weekly active users, helping make the web a better and more accessible place for everyone.

    Another area of importance for us is in helping drive global accessibility standards forward. Deque donates time from our top experts to contribute to WCAG standards working groups with the W3C.

    In addition to our open source work, Deque offers accessibility course scholarships for people with disabilities on Deque University.

    Our Team

    Everyone on the Deque Team shares a passion for providing equal access to the web regardless of ability.  We have helped develop international accessibility guidelines in W3C working groups, and many of our Subject Matter Experts spent years working inside large Fortune 500 companies on accessibility before joining the Deque team.

    Various Deque employees posing and smiling together in a group photo.

    Stay Connected

    Sign up to receive updates about Deque events, webinars, content, and products.

    To subscribe, simply select the subject areas that are interesting to you, and provide us with your email address.



    A map of Deque headquarters, east of 286 at the intersection of Post Dr. and Elden St.

    381 Elden Street Ste 2000 Herndon, VA  20170

    Deque Labs

    Google map of Deque Labs, near intersection of South Main Street and Ann Arbor - Saline Road

    2100 S. Main Suite D Ann Arbor, MI  48103

    Deque Software Private Limited

    Google map of Deque Software Private Limited, near intersection of Hitech City Rd and Kavuri Hills Rd, opposite lane to Madhapur Police Station

    Plot No: 119 Ivy Terrace Kavuri Hills Madhapur Hyderabad – 500033 Telangana, INDIA

    • GSA Contract Holder logo
    • Certified WBEN Women’s Business Enterprise logo
    • Carolinas-Virginia Minority Supplier Development Council logo
    • W3C – World Wide Web Consortium logo
    • IEEE logo
    • ACM – Association for Computing Machinery logo
    • AFCEA logo
    • IAAP – International Association of Accessibility Professionals logo