Deque Systems

From Wikipedia, the free encyclopedia
Deque Systems
TypePrivate Company
IndustryWeb Accessibility
HeadquartersHerndon, VA
Area served
Key people
  • Preety Kumar (CEO)

Deque Systems (/ˈdkj/ DEE-kew) is a digital accessibility company based in Herndon, Virginia with additional offices in Kavuri Hills Madhapur, Hyderabad India and Utrecht, The Netherlands.


The CEO of Deque Systems is Preety Kumar.[1]

The company was started in 1999 and produces accessibility testing software in addition to offering accessibility consulting services and training.[citation needed]

In June, 2015 Deque open-sourced the accessibility rules engine axe-core.[2]

In May 2020, the WorldSpace brand name was retired and replaced by axe for each of Deque's products.[3]

In September 2020, Deque found that the majority of vote by mail applications were inaccessible, and fixed them for the 2020 Presidential Election.[4][5][6][7]

More than 17,000 attendees joined Deque's digital accessibility conference axe-con in March 2021, making it the largest accessibility conference recorded.[8]

Deque was named a leader in the first-ever Forrester Wave report for Digital Accessibility Platforms, Q4 2023 with the highest overall score.[9]


Deque tools, services and training are used to achieve compliance in support of the W3C's Web Content Accessibility Guidelines,[10] the Americans with Disabilities Act, Section 508 and EN 301 549.[11]

axe is a suite of accessibility testing tools for HTML, Android, and iOS applications. Each product in the axe toolkit is powered by the open source rules engine axe-core.[12][13]

Products within the axe suite include: axe Devtools, axe Monitor and axe Auditor.

Deque University is a collection of online accessibility training courses covering a range of topics from introductory level to expert-level International Association of Accessibility Professionals CPACC.[14]


  1. ^ "Deque Systems Software Announces Disruptive Web Technology for Disabled Customers - WashingtonExec". 13 July 2012.
  2. ^ "Accessibility Testing Goes Open Source and Mainstream".
  3. ^ "Yahoo | Mail, Weather, Search, Politics, News, Finance, Sports & Videos". Yahoo! News.
  4. ^ "Digital vote-by-mail applications in most states are inaccessible to people with disabilities – TechCrunch". October 2020.
  5. ^ "Absentee Ballot Applications Are Not Accessible to Voters with Disabilities in 43 States | Time". Time. 30 September 2020.
  6. ^ "Ballot Applications in 43 States Inaccessible to Voters With Disabilities". Business Insider.
  7. ^ "Audit found 43 states' mail-in ballot applications are not accessible for people with disabilities |". The Hill. 30 September 2020.
  8. ^ "Deque Wraps First Axe-Con: Largest Accessibility Conference Ever, With Over 17,000 Registered from Around the Globe | Business Wire" (Press release). Business Wire. 12 March 2021.
  9. ^ "The Forrester Wave™: Digital Accessibility Platforms, Q4 2023 | Forrester Research". Forrester Research. 18 October 2023.
  10. ^ "Web Accessibility Evaluation Tools List".
  11. ^[bare URL PDF]
  12. ^ "aXe: An Open Source JavaScript Library for Automating Accessibility Testing – WP Tavern". March 2016.
  13. ^ "Microsoft and Deque make accessibility easy for millions of developers | Windows Central". 9 July 2019.
  14. ^ "AccessibilityAssociation".