Who Owns Thoughtworks?

Roy Singham founded Thoughtworks in Chicago in 1993 as a boutique software consultancy focused on custom development for large enterprises. Through the late 1990s and 2000s it became closely associated with the agile software movement, employing influential figures such as Martin Fowler and contributing early tools like the CruiseControl continuous integration server, a precursor to modern CI/CD practice.

The company grew internationally during the 2000s and 2010s, building large delivery centers in India, China, Brazil, and Australia while keeping its headquarters in Chicago. It cultivated a reputation both for technical advocacy, published through its biannual Technology Radar, and for hiring and social-justice-oriented culture unusual among IT services firms. Open source projects including the Selenium browser-testing framework and the GoCD continuous delivery server came out of its engineering community.

Apax Partners first invested in 2017, acquiring a minority stake that valued the company near $1.1 billion. Thoughtworks then went public on the Nasdaq in September 2021 under ticker TWKS, pricing near the top of its range, but the timing proved poor. Revenue of $1.3 billion in fiscal 2022 fell to $1.1 billion in 2023 as clients cut discretionary technology spending, and the stock lost most of its IPO value.

Guo Xiao, who had led the company for a decade, stepped down in June 2024 and was replaced by Mike Sutcliff. Months later, Apax agreed to take the company private at $4.40 per share, completing the $1.75 billion transaction in November 2024. The board simultaneously expanded a restructuring plan targeting $185 million to $210 million in savings, affecting roughly 6 to 7 percent of the global workforce.

Under private ownership the firm has repositioned around AI-assisted software development and enterprise modernization, with roughly 10,500 employees across 48 offices in 19 countries as of late 2025.