2x founder

Lewis Lien Polansky

CEO at Captain (YC W26), Self-tuning search for products & files

Co-founder

Captain· Winter 2026 🇺🇸 San Francisco, California, United States

in LinkedIn 𝕏 @lienpolansky

2025Co-founder· Captain (YC W26)

Founder · since 2020

Company

Captain (YC W26)

Role

CEO & Co-Founder

current

Stage

—

no public source

Raised

—

no public source

Based

San Francisco Bay Area

current

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Captain

Accurate, high-performance retrieval for AI agents

Winter 2026

Experience

Career

Captain (YC W26)
Co-founder
CEO & Co-Founder · San Francisco Bay Area · 2025 – Present
2025
JUA Technologies International
Software & Business Development · Noblesville, Indiana, United States · 2024
2024
Purdue IEEE
Head of Business Development · West Lafayette, Indiana, United States · 2023 – 2024
2023
CyberSpace Cybersecurity
Founder
Founder & President · South Pasadena, California, United States · 2020 – 2024
2020
Congressional App Challenge
Development Team Lead · Los Angeles, California, United States · 2020 – 2022
2020

Bio

CEO @ Captain, Prev. IEEE, Founded CyberSpace (CTF hacking group), Recognized by the U.S. Congress for leadership in community software projects, Avid designer, Dropped out of Purdue