Fundraising FoxPioneer Square Ventures
Venture capitalActively deployingSeattle · 3 people tracked
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Fund manager profile
Pioneer Square Ventures is a venture fund manager based in Seattle. SEC filings show 1 venture fund on record, most recently Pioneer Square Ventures Fund III, L.P. ($100M offering) filed April 2026.
Source: SEC EDGAR Form D filings. Firm website data not yet available.
Team · 3 people
from public directories
Founder mafia
3 people who came through Pioneer Square Ventures went on to found or lead other companies.
What they invest in
from 5 of 5 portfolio companiesAI & Machine Learning ×3Enterprise Software ×3SaaS ×3B2B Marketplaces ×1Cybersecurity ×1Data & Infrastructure ×1E-commerce ×1Fintech ×1
HQs:United States×3
Investments · 5 tracked
founders shown can be your intro pathBy year:2025 · 12024 · 12021 · 12015 · 14 dated
Flexe provides platform-based warehousing network management, handling implementation, onboarding, and operations across multiple locations for customers seeking to scale their logistics infrastructure.
B2B MarketplacesLogistics & Supply ChainSaaSSeattle, US
Karl Siebrecht(Founder)inEdmond Yue(Founder)inFrancis Duong(Founder)inCurt Anderson(CFO & COO)in
Board seatMike Karl GalgonMike Galgon· per SEC Form D · $80M raise · filed Jan 2021
Co-investors137 VenturesAcequia Capital (AceCap)ACTIVATE CAPITAL PARTNERSAlumni VenturesBlue Ivy VenturesCollective Liquidity+10 more
Kamiwaza offers a distributed AI orchestration platform that processes data where it resides, allowing enterprises to deploy AI without centralizing data or compromising security.
AI & Machine LearningData & InfrastructureEnterprise SoftwareGovTechSilverthorne, US
Matthew Wallace(Executive Officer, Director)inLuke Matthew Norris(Executive Officer, Director)
Board seatVivek Ladsariya· per SEC Form D · $8.5M raise · filed Jan 2025
Co-investorsAscend Venture CapitalCitta CapitalFirstMile VenturesGreater Colorado Venture FundPioneer Square LabsS3 Ventures+2 more
LumaTax is a platform that automates US and Canadian sales tax compliance, helping businesses manage nexus registration, tax filings, and remittance across multiple jurisdictions.
E-commerceFintechSaaSSeattle, US
Robert Schulte(Founder)inFergal Garvey(Founder)Michael Glover(Founder)Stefan Mladenovic(Founder)
BoardChuck Stonecipher(Director)in
Board seatGregory Gottesman· per SEC Form D · $6.1M raise · filed May 2021
Co-investorsCowboy VenturesMadrona Venture GroupPioneer Square LabsTrilogy Equity Partners
Certivo is a supply chain compliance platform that automatically collects supplier documentation, monitors certificate changes and expirations, and reports an organization's compliance posture.
AI & Machine LearningEnterprise SoftwareSaaS
Co-investorsPioneer Square LabsSuffolk Technologies
Dropzone AI builds AI agents that investigate security alerts, hunt threats, and respond to cyberattacks for security teams and organizations.
AI & Machine LearningCybersecurityEnterprise Software
Co-investorsDecibel PartnersIn-Q-TelMadrona Venture GroupPioneer Square LabsTheory VenturesRedpoint Ventures
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.
Portfolio news
latest coverage across their companiesCertivo · finsmes.com · Feb 17, 2026
Dropzone · finance.yahoo.com · Jul 28, 2025
Frequently asked questions
- How many investments has Pioneer Square Ventures made?
- Pioneer Square Ventures has 5 tracked investments, including 1 dated in the last 24 months.
- Where is Pioneer Square Ventures located?
- Pioneer Square Ventures is headquartered in Seattle, US.