Pioneer Square Labs is an accelerator and venture capital firm. Based in Seattle, Washington, United States. Known portfolio companies include Starfish Space, Tin Can, Overland AI, Potato, Glue and KamiwazaAI, 21 companies in all.
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Investment focus
Contacts
Who to pitch at Pioneer Square Labs
Pioneer Square Labs portfolio companies (21)
- Starfish Space
- Tin Can
- Overland AI
- Potato
- Glue
- KamiwazaAI
- Dropzone AI
- SingleFile Technologies
- Outgo Inc
- BluePill
- JetClosing
- LumaTax
- Archera
- Boundless Immigration
- Certivo
- Gumshoe AI
- HouseWhisper
- Mudstack
- Zucca
- Ad Lightning
- Casera
Co-investors
Funds that share portfolio companies with Pioneer Square Labs.
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About Pioneer Square Labs
The firm's listing covers sectors AI, Commerce, Consumer and Education, and focus areas AI Applications, Automotive, Autonomous Vehicles and Cloud Infrastructure; known deals cluster at Growth, Pre-Seed and Seed.
Of the 10 people on file at Pioneer Square Labs, Greg Gottesman (Co-Founder) and Geoff Entress (Co-Founder) are listed as the contacts to approach first.
Pioneer Square Labs shares portfolio companies with 20 other investment firms, among them Point72 Ventures, Foundry and DLA Piper.
Frequently asked questions
What is Pioneer Square Labs?
Pioneer Square Labs is an accelerator and venture capital firm based in Seattle, Washington, United States, with a known portfolio of 21 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Pioneer Square Labs invest in?
Listed sectors include AI, Commerce, Consumer and Education; listed focus areas include AI Applications, Automotive, Autonomous Vehicles and Cloud Infrastructure. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Pioneer Square Labs invest at?
The known deals of Pioneer Square Labs include Growth, Pre-Seed and Seed rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Pioneer Square Labs?
2 of the 10 people on file at Pioneer Square Labs are listed as contacts for the firm. All 10 have their own profile page.
How do I contact Pioneer Square Labs?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 10 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal