❯ Cognition cofounder Steven Hao, 30, is the youngest Forbes 400 member

A September rankingCognition cofounder and CTO Steven Hao, 30, was the youngest member of the 2026 Forbes 400, with an estimated $5.8 billion fortune. Forbes’s September profile says all three Cognition cofounders won informatics olympiad gold medals. This revisits an already published ranking.

Equity-based wealthCognition’s Devin writes and repairs code for customers including Citibank and Ramp. Its September financing raised $2 billion at a $48 billion valuation. Forbes identifies Hao as the largest founder shareholder; the estimate reflects private equity value rather than realized cash.

A broader product portfolioCognition acquired Windsurf in 2025, adding its editor, intellectual property, people and enterprise sales capabilities. Its one-year review describes the subsequent integration of cloud agents and developer tools.

Revenue paceBloomberg reported on September 25 that current performance pointed to roughly $1 billion in annualized revenue. Briefs’s account preserves the distinction between a short-period sales pace and actual full-year revenue.

▮ SIGNALEnterprise demand for AI coding supports equity valuations, distinct from founders’ realized cash.