Sigil Wen — Cosign

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Invited

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.

Claimed by the subject

Career

Founder and Executive Chairman at Extraordinary.com until Present

Founder and Chief Executive Officer at Conway Research until Present

Creator at Underdog from 2026 to 2026

Investing Announcements

Etched

Cosigns Received

These Cosigners would work with Sigil anywhere

These Cosigners think Sigil will be a star

Joshua Collin

First Cosign

Sigil is super smart and ambitious. I lived with him and watched him grow so much during our time together. Go Sigil!

Source

sigilwen.ca

Building Extraordinary

A firsthand account of turning public immigration resources and a founder community into a company.

Open ↗

Media appearance

Investing in Conway, the Creator of Underdog

a16z’s announcement on Conway Research’s first funding round and Underdog, the self-modifying AI agent Sigil created.

a16z.com · Open ↗

How I Earned My Way Into the US

His account of building at Airchat, finding mentors and earning an O-1 visa—the experience behind Extraordinary.

github.com

Conway Automaton

An open-source Conway Research project Sigil contributes to, with an agent loop, wallet-based identity, resource budgets, and auditable code changes.