23-Year-Old's AI Data Startup Becomes Fastest YC Unicorn

Spencer Mateega, 23, has turned his YC startup AfterQuery into an AI data-labeling company valued at $3.2 billion, a 10x increase since April, making it the fastest unicorn in Y Combinator's history.

2026-09-02 ~ 2026-09-02 · 2 related posts

• AI data labeling company AfterQuery valued at $3.2B — annatonger · 2026-09-02
• 23-Year-Old Founder Pivots YC Startup into Fastest-Ever Unicorn at $3.2B — ycombinator · 2026-09-02