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Funds/North America/Pioneer Square Labs

Pioneer Square Labs

Venture Capital FirmSeattle, US·Founded 2015·psl.com

Est. dry powder

$20.6M

Raised, not yet invested

AUM

—

Not reported

Latest fund

$80M

Pioneer Square Ventures Fund I

Est. cheque size

$618.8K–$5M

From fund sizes

Deals, last 12 months

6

Last seen investing May 2026

About Pioneer Square Labs

Pioneer Square Labs is a US-based private equity firm involved in venture capital investments. The firm invests in early stage, early stage: seed, early stage: start-up and growth investments Globally and specifically across North America, West, and the US that focus on media, internet, and other industries.

Type
Venture Capital Firm
Headquarters
Seattle, Washington, US
Stages
SeedSeries ASeries BEarly Stage
Est. cheque size
$618.8K–$5M
Sectors
Information Technology, Diversified
Regions
North America
Strategies
Pre-Seed, Seed, Series A

Where they invest

From deals and portfolio companies on record

Most frequent rounds

  • Seed41
  • Series A16
  • Series B6

Across 86 deals

Portfolio sectors

  • Software29
  • Internet6
  • Financial Services5
  • IT Security/Cybersecurity2
  • Aerospace1

Across 53 companies

Portfolio countries

  • US52
  • China1

Across 53 companies

Recent investments

Newest 5 of 86

DateCompanyRoundAmountCo-investors
  1. May 2026

    SageOx

    May 2026 · Seed

    Seed$15MCanaan Partners, Founders' Co-op, A Capital Partners
  2. Mar 2026

    Starfish Space Inc.

    Mar 2026 · Series B

    Series B$111.7MNFX, Point72, Gaingels, Toyota Ventures +7
  3. Feb 2026

    Certivo, Inc.

    Feb 2026 · Seed

    Seed$4MSuffolk Technologies
  4. Dec 2025

    Tin Can

    Dec 2025 · Seed

    Seed$12MGreylock Partners, Newfund, Mother Ventures, Solid Foundations +1
  5. Dec 2025

    Casera

    Dec 2025 · Unspecified Round

    Unspecified Round$1M—

Offices

1 location

  • Seattle, Washington, USHQ

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Questions about Pioneer Square Labs

How much does Pioneer Square Labs invest per deal?

Based on the size of its funds, Pioneer Square Labs writes estimated cheques of $618.8K–$5M. Lead cheques usually sit at the top of that range and follow-on cheques lower.

What stages does Pioneer Square Labs invest in?

Pioneer Square Labs has invested at Seed, Series A, Series B and Early Stage. Its most frequent rounds on record are Seed, Series A and Series B.

How much capital does Pioneer Square Labs have left to invest?

Pioneer Square Labs has an estimated $20.6M in dry powder: capital it has raised but not yet invested.

Similar investors in North America

Andreessen HorowitzUS · Cheque $3.8M–$81.3M$21.5B dry powderFounders FundUS · Cheque $696K–$57.5M$10.8B dry powderAccelUS · Cheque $1.1M–$31.9M

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What has Pioneer Square Labs invested in recently?

Recent investments include SageOx, Starfish Space Inc. and Certivo, Inc.. It made 6 investments in the last 12 months.

Where is Pioneer Square Labs based?

Pioneer Square Labs is headquartered in Seattle, US.

How do I contact Pioneer Square Labs?

Partner names, emails and LinkedIn profiles for Pioneer Square Labs are on the Capital Atlas Pro and Team plans, which also draft outreach and track replies. Check the stages and cheque size above first, so you pitch a firm that fits your round.

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