US Y Combinator founders list

The US Y Combinator founders list includes 142 people in the United States, collected Oct 15, 2026, including Aaron Harris, Aaron Iba, Adam Alpert.

Current founder or co-founder role with no end date; named company; US person location matching the listed geography. A separate experience must name the prior organization exactly (legal suffix ignored). The selected current company is a different organization. This is a stored name match, not an employment-verification letter. Roles describe the collection snapshot; confirm them on the linked profiles.

States: California (95), New York (19), Texas (5), Florida (4), Colorado (3), Massachusetts (3), District of Columbia (2), Georgia (2), Pennsylvania (2), Kentucky (1), Nevada (1), North Carolina (1), Ohio (1), Rhode Island (1), Tennessee (1), Washington (1). Cities: San Francisco (69), New York (14), Los Angeles (7), Palo Alto (5), Brooklyn (4), Austin (3), Miami (3), Mountain View (3), Atlanta (2), Denver (2), San Diego (2), San Jose (2), Stanford (2), Washington (2), Boston (1), Boulder (1), Cambridge (1), Cincinnati (1), Durham (1), Houston (1), Irvine (1), Ithaca (1), Las Vegas (1), Long Beach (1), Los Altos (1), Louisville (1), Menlo Park (1), Nashville (1), Phoenixville (1), Providence (1), San Antonio (1), Santa Monica (1), Seattle (1), Swarthmore (1), Tampa (1), Weston (1). Locations describe people, not company headquarters.

128 companies. Repeated companies: Alixia (2), CrimeoMeter (2), Fazeshift (YC S24) (2), HOKALI (2), Pangea.app (2), Paratus health (2), Pascal (2), Ritual (2), Silimate (YC S23) (2), Simbie AI (2), Simple AI (2), Sonia (YC W24) (2), Stayflexi (2), Superblocks (2)

Last collected Oct 15, 2026. Individual collection dates are included in downloads. No refresh is scheduled; confirm current roles on LinkedIn.

No. These 142 published profiles come from 142 qualifying records in a query-selected pool of 5481 candidates. All qualifying cached records are included. Display order is A–Z by name, not a ranking. Counts describe this sample, not the market.

Use the named companies, person locations and quoted inclusion evidence to start employer research, recruiting or partnership research. Download the full sample as CSV, JSON or Markdown. Confirm the current role and company before outreach; inclusion does not establish hiring plans, contact permission or a hiring outcome.