Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.

Firms / Pioneer Square Investment Advisor, LLC

Pioneer Square Investment Advisor, LLC

Venture studioSeattle, WApioneersquarelabs.comSEC venture capital fund adviserfundraising evidence

PSL is a startup studio and early-stage venture capital fund in Seattle, WA.

name or self-description says studio or venture builder

Importance
41
elevated
Active deployment
90
high
Emerging
0
low
Completeness
81
high
Freshness
100
high
Research priority
26
moderate
Identity and regulatory footprint
Headquarters
Seattle, WAadviserinfo.sec.gov
Office address
240 2ND AVE S, STE 300, Seattle, WA, 98104adviserinfo.sec.gov
Business phone
(206) 202-2227adviserinfo.sec.gov
SEC adviser type
exempt reporting adviseradviserinfo.sec.gov
SEC exemption claimed
venture capital fund adviseradviserinfo.sec.govItem 2.B(1): advises solely venture capital funds
Latest Form ADV
Apr 11, 2026
Private funds reported
2 (2 venture capital funds)adviserinfo.sec.gov
Private fund gross assets
$180Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
business email
hello@psl.compsl.compublished by the subject
business phone
(206) 202-2227adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
56 observed deals
Stated (the firm’s website)
Sectors
ai
Stages
early
Geography
seattle
Check size
not stated; DFX does not estimate checks from round sizes
Self-described
venture studio
Observed (from deals on record)
Stage at participation: no observed deals yet
Stage at first entry: no observed deals yet
Sectors
unknown 89%Other Technology 11%
lead rate n/afollow-on rate n/anew logos, 12 months 55
Funds and vehicles
6 reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
AIStudio Fund, L.P.Fund2024 form d first saleEarly deploymentunknownunknown$7.5M
of $7.5M
Jan 10, 2024
Pioneer Square Ventures Fund II, L.P.Fund2021 form d first saleMature$100M
Mar 27, 2024
76$93.3M
of $93.3M
Mar 12, 2021
Pioneer Square Ventures Fund I, L.P.Fund2017 form d first saleHarvest$80.0M
Mar 27, 2024
71$80.0M
of $80.0M
Apr 17, 2018
AITFund I, LPFundunknownFundraisingunknownunknown$0
of $20.0M
Apr 14, 2026
Acquired Capital Fund I LPFundunknownUnknownunknownunknown$0
of $30.0M
Apr 24, 2024
Pioneer Square Ventures Fund III, L.P.FundunknownFundraisingunknownunknown$0
of $100M
Apr 29, 2026
GAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.
Investment team
17 current, 2 departed
Joe Beda
Founder of Kubernetes, and Founder & Former CTO of Heptio (acquired by VMware)
Founder or executive
Diego Oppenheimer
Partner at Factory and Founder & former CEO of Algorithmia (acquired by DataRobot)
Platform and operations
Jesse Rothstein
Co-founder, board director, and former CEO / CTO of ExtraHop
Principal
2 departed (kept with end dates)
Investments on record
56 edges, 56 companies, 1 partner-attributed
CompanyRoundRolePartnerRound sizeThis investorDateSource
AG2portfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Alertiveportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Archeraportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Arrivedportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
BigBox VRportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Bluepillportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Boltiveportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Boundlessportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
case studyportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Certivoportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Copperportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Dance Churchportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Dropzone AIportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Empwrportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Enzzoportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
EverGreenportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Felix & Fidoportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Frontier Instrumentsportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Genbaportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Glowportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Glueportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Gradientportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Gumshoeportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
HouseWhisperportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Iterativelyportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Joonportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Kamiwaza Corp.portfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Kevala, Inc.portfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Levportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
LoansIntelportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Lumataxportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
MaximalLearningportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Meeting Flowportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Mudstack, Inc.portfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Official AIportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Olisportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Outgoportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Overlandportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Promportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Readportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Recurrentportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Remarkablyportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Secureportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Shipiumportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
SingleFileportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Sofyportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Starfishportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Tallyportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
TeamSense Inc.portfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
The Instrumentportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Tin Canportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
TrovaTripportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Yeslerportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Zuccaportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Super.AI Inc.portfolio listingunknownunknownunknownunknownSep 13, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
SingleFile Technologies Inc.board seatunknown · boardGreg Gottesman (strongly supported)unknownunknownMar 26, 2024Inference SEC EDGAR Form D data sets (quarterly)
“This investor” is the amount disclosed for this investor alone; it is unknown unless a source said it. The round size is the whole round.
Co-investors
40 relationships from shared deals, counted for the whole firm
Mac Venture Capital 2 shared · recurringThree-Sixty Health Venture Partners, LLC 2 shared · recurringGrdnt LLC 2 shared · recurringConstruct Capital Management, LLC 1 shared · one timeLeap Forward Ventures, LLC 1 shared · one timeNotation Capital Management, LLC 1 shared · one timeHack Vc Management, LLC 1 shared · one timeT2 Capital Management, LLC 1 shared · one timeCollaborative Fund Management LLC 1 shared · one timePowerhouse Ventures 1 shared · one timeBuilding Ventures, LLC 1 shared · one timeRevolution 1 shared · one timeLobster Capital, LLC 1 shared · one timeRetv Management, LLC 1 shared · one timeAzolla Management Company, LP 1 shared · one timeGrant Avenue Capital LLC 1 shared · one timeInterplay Ventures Early Stage Management LLC 1 shared · one timeCanapi Ventures 1 shared · one timeAmplify Partners 1 shared · one timeUpper90 1 shared · one timeMMC Ventures Limited 1 shared · one timeNotion Capital 1 shared · one timeEv3 Ventures LLC 1 shared · one timeParkway Founders 2 LLC 1 shared · one timeSilverton Management, L.L.C. 1 shared · one timeDecibel Partners, LLC 1 shared · one timeE14 Management, LLC 1 shared · one timeK5 1 shared · one timeHyperplane Venture Capital 1 shared · one timeC5 Capital 1 shared · one timeTVV Capital 1 shared · one timeCore Venture Capital 1 shared · one timeMotive Partners 1 shared · one timeTarget Global Selected Opportunities LP 1 shared · one timeMadrona Venture Group, LLC 1 shared · one timeUnlock Venture Partners 1 shared · one timeRiata Capital Group, LLC 1 shared · one timeJ2 Ventures Advisors, LLC 1 shared · one timePartners Group Ag 1 shared · one timeThin Line Capital, LLC 1 shared · one time
Limited partners
0 disclosed
No LP commitment on record. An LP edge needs a public disclosure with a quote: a pension report (see Limited partners for the plans read), a fund announcement naming the LP, or a Form ADV owner. The fund page carries the LP’s reported performance.
Timeline
8 dated events
  1. Sep 16, 2026
    Super.AI Inc. no longer listed on Pioneer Square Investment Advisor, LLC's portfolio page
  2. Sep 13, 2026
    Pioneer Square Investment Advisor, LLC: INSTITUTIONAL_VC -> VENTURE_STUDIO (name or self-description says studio or venture builder)
    Classification changedClassificationInferenceno URL
  3. Mar 25, 2022
    Pioneer Square Ventures Fund II, L.P. first reported on Form ADV by Pioneer Square Investment Advisor, LLC (Venture Capital Fund), GAV $100,000,000
  4. Mar 25, 2022
    Michael Thomas Galgon (Managing Director, Member) no longer on Schedule A of Pioneer Square Investment Advisor, LLC
  5. Sep 1, 2018
    Palvi Kumar Mehta joined Schedule A of Pioneer Square Investment Advisor, LLC as Chief Financial Officer
  6. May 11, 2018
    Aaron William Singleton (Chief Financial Officer) no longer on Schedule A of Pioneer Square Investment Advisor, LLC
  7. Feb 8, 2018
    Pioneer Square Investment Advisor, LLC first filed Form ADV (ERA, venture capital fund adviser exemption)
  8. Feb 8, 2018
    Pioneer Square Ventures Fund I, L.P. first reported on Form ADV by Pioneer Square Investment Advisor, LLC (Venture Capital Fund), GAV $40,785,000
Classification history
  1. Sep 13, 2026
    Venture studio (confirmed, 95%, cls-1)
    name or self-description says studio or venture builder
  2. Sep 12, 2026
    Institutional venture firm (confirmed, 95%, cls-1)
    venture manager, reported GAV $180M across 3 vehicles
  3. Sep 12, 2026
    Institutional venture firm (confirmed, 95%, cls-1)
    venture manager, reported GAV $180M across 2 vehicles
Evidence
55 observations from 3 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
Why admittedvc_exemption,vc_funds_reportedApr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC exemption claimedventure_capital_fund_adviserApr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC exemption claimedventure_capital_fund_adviserMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
SEC adviser typeexempt_reporting_adviserApr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC adviser typeexempt_reporting_adviserMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
First Form ADV filing2018-02-08Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Adv history loadedadv-hist-1Sep 12, 2026FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Latest Form ADV filing2026-04-11Apr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Latest Form ADV filing2024-03-27Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
SEC statusERA - ActiveApr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
SEC status effective2018-02-08Apr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Venture share of reported funds1Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Business phone(206) 202-2227Apr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Business phone(206) 202-2227Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
DescriptionPSL is a startup studio and early-stage venture capital fund in Seattle, WA.
meta description
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionPSL is a startup studio and early-stage venture capital fund in Seattle, WA.
meta description
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
HeadquartersSeattle, WAApr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
HeadquartersSeattle, WAMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Office address240 2ND AVE S, STE 300, Seattle, WA, 98104Apr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Office address240 2ND AVE S, STE 300, Seattle, WA, 98104Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Self-described typeventure_studio
Pioneer Square Labs is a Startup Studio & Venture Capital Fund
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Self-described typeventure_studio
Pioneer Square Labs is a Startup Studio & Venture Capital Fund
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Legal formLimited Liability CompanyApr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Legal formLimited Liability CompanyMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Portfolio pagehttps://www.psl.com/companies
54 entries read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Portfolio pagehttps://www.psl.com/companies
55 entries read
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Private funds reported2Apr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Private funds reported2Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Private fund gross assets (reported)$180MApr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Private fund gross assets (reported)$180MMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Stated geographyseattle
geography words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated geographyseattle
geography words on the home page
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsai
sector words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsai
sector words on the home page
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated stagesearly
stage words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated stagesearly
stage words on the home page
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://www.psl.com/team
13 name/title pairs read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://www.psl.com/team
13 name/title pairs read
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Venture funds reported2Apr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
Venture funds reported2Mar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
WebsiteHTTPS://www.pioneersquarelabs.com
re-picked from Schedule D 1.I by name
Sep 12, 2026FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
WebsiteHTTP://WWW.PSL.COMApr 11, 2026FactSEC Form ADV monthly roster (registered + exempt reporting advisers)
WebsiteHTTP://WWW.PSL.COMMar 27, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Website resolved domainpsl.com
https://pioneersquarelabs.com/ redirected to https://www.psl.com/
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Website resolved domainpsl.com
https://pioneersquarelabs.com/ redirected to https://psl.com/
Sep 14, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titlePioneer Square Labs
title tag
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titlePioneer Square Labs
title tag
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)