Extraordinary.comFounder and Executive Chairman
Until Present
Sigil Wen founded and leads Conway Research, building AI systems including Underdog for personal intelligence on devices people own. He also serves as founder and executive chairman of Extraordinary and invests in technical founders.
Sigil Wen founded and leads Conway Research, building AI systems including Underdog for personal intelligence on devices people own. He also serves as founder and executive chairman of Extraordinary and invests in technical founders.
Until Present
Until Present
2026 — 2026
A firsthand account of turning public immigration resources and a founder community into a company.
His account of building at Airchat, finding mentors and earning an O-1 visa—the experience behind Extraordinary.
An open-source Conway Research project Sigil contributes to, with an agent loop, wallet-based identity, resource budgets, and auditable code changes.
a16z’s announcement on Conway Research’s first funding round and Underdog, the self-modifying AI agent Sigil created.