Pioneer Square Labs

Pioneer Square Labs

Seattle, Washingtonpsl.com

Overview

Pioneer Square Labs (PSL) operates as a startup studio and venture fund, playing a unique role in the tech ecosystem. Unlike traditional venture capital firms, PSL doesn't just invest in already existing startups; instead, they cultivate their own ideas, build new companies from scratch, and then invest in them. By assembling a team of experienced entrepreneurs, technologists, and investors, PSL sets out to solve big problems and create innovative solutions.

Year Founded

2015

Portfolio Companies

20

Website

psl.com

Investments

CompanyDateStageLead
SageOxMay 2026SeedCo-investor
CertivoFeb 2026SeedCo-investor
Tin CanDec 2025SeedCo-investor
BluePillNov 2025SeedCo-investor
Dropzone AIJul 2025Series BCo-investor

Key People

Ben Gilbert

Co-Founder and Managing Director, PSL Ventures

Cynthia Mason

Retained Executive Recruiting Partner - Hiring Founders CEOs CTOs

Geoff Entress

Co-Founder and Managing Director

Greg Gottesman

Co-Founder and Managing Director

Julie Sandler

Venture Partner, Co-founder & General Partner, PSL Ventures, Managing Director, PSL

David Zager

Partner Chief Design Officer

Palvi Mehta

CFO And Operating Partner

Alex Ray

Principal

Shilpa Kannan

Principal

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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FAQ

Firmographic Details

HeadquartersSeattle, Washington
Year Founded2015

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