Arvid Lunnemark

Arvid Lunnemark cofounded Cursor, the maker of a popular AI code editing tool, with three friends from MIT in 2022.

Cursor reached a $29.3 billion valuation in November 2025, after raising $2.3 billion in a funding round co-led by VC heavyweights Accel and Coatue.

Cursor claims to have more than $1 billion in annualized revenue, making it one of the fastest growing AI companies.

Today, millions of software developers at some 50,000 enterprises like Nvidia, Adobe, Uber, Shopify and PayPal use Cursor to generate and edit chunks of code.

Originally from Sweden, Lunnemark left Cursor in October 2025 to launch a new startup called Integrous Research, which is focused on developing systems for safer AI.

A former math olympiad champion, Lunnemark did internships in quantitative trading at Jane Street and software engineering at Stripe before cofounding Cursor.