Ian Laffey

Founder

Founder at Theseus

San Francisco Bay Area

About

Founder of Theseus, which develops visual positioning software for autonomous systems operating in GPS-denied environments.

LinkedIn ↗X / Twitter ↗

Latest on 𝕏

Ian Laffey @ilaffey2

a recent phenomena we've been observing at theseus is (6!) customers applying for jobs at the company saying how much they believe in the product and the team. something's working!

Jul 31, 2026 · ♥ 36

Ian Laffey @ilaffey2

the danger of twitter is a constant information stream echo chamber is that it dilutes creativity, risk taking, and thinking on longer time horizons. it's anachronistic and ephemeral. it feels great take several months outside of the information torrent, with other feedback

Jul 30, 2026 · ♥ 22 · ⇄ 1

Ian Laffey @ilaffey2

easy to forget china is learning way more than the west, supplying the majority of critical components to both sides, with businesses that are very active in kyiv and also have real commercial legs to stand on https://t.co/mAjVYcwspZ

Jun 16, 2026 · ♥ 2 · ⇄ 1

Founder at Theseus YC S24

Intro paths

Ian went through Y Combinator (Summer 2024) — any YC alum in your network can reach them through the YC community.

Their group partner at YC was Aaron Epstein, General Partner at Y Combinator — the partner who ran Theseus's batch and knows the company first-hand. YC profile ↗

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In turn, Ian can intro founders to Theseus's investors below.

Theseus's investors · 5

Antler First Round Capital Foresite Capital Lux Capital Y Combinator

Co-founders at Theseus

Sacha LévyFounder

Experience

TheseusChief Executive Officercurrent2025 — presentSan Francisco, California, United States
TheseusChief Technology Officer2024 — 2025San Francisco, California, United States
Founders, Inc.Studio Engineer2023San Francisco, California, United States
Exact PaymentsSoftware Engineer2022 — 2023Denver, Colorado, United States