Pioneer Square Labs — Full Portfolio
64 tracked investments · listed companies and verified rows first
SingleFile provides a platform for managing entity compliance across multiple U.S. states, combining automated deadline tracking, registered agent coverage, and state filing services.
AI & Machine LearningFintechGovTechLegalTechSaaSSeattle, US
Sean Flynn(Founder)in
Boltive provides an independent governance engine that evaluates autonomous agents, creatives, and inventory in advertising transactions to ensure compliance with defined business, security, and quality rules.
AdTechAI & Machine LearningCybersecuritySaaSSeattle, US
Pamela Slea(Chief Executive Officer)inChristine Desrosiers(Chief Product Officer)inCatherine Mietek(Chief Marketing Officer)inKC Reaney(Chief Technology Officer)inMICHAEL GALGON(Executive Officer, Director)SCOTT MOORE(Executive Officer, Director, Promoter)
Co-investorsR/GA Ventures
Ampd provides data-led marketing solutions for commerce marketers, helping brands measure and optimize paid traffic performance across retail platforms like Amazon, Walmart, Meta, TikTok, and Target.
AdTechAI & Machine LearningData & InfrastructureMarketing TechRetail TechSeattle, US
Joshua Gebhardt(CEO & Co-Founder)inBrandon Nutter(CTO & Co-Founder)in
Co-investorsGeekdomRC VenturesTechstarsWisemont Capital
Seattle, US
Derek Slager(Founder)Kabir Shahani(Founder)inAmy Pelly(Executive Officer)in
BoardMatt McIlwain(Director)Rajeev Singh(Director)Kelly Wright(Director)
Co-investorsDeclaration PartnersFoundation CapitalFUSEGeneral CatalystGreycroftHighsage Ventures+4 more
An open-source design editor that allows developers and AI coding agents to collaborate on creating, modifying, and deploying UI components in real time, with changes directly converted to production code.
Advanced ManufacturingDeveloper ToolsEnterprise SoftwareRoboticsSan Francisco, US
Perbhat Kumar(Founder)in
Co-investorsBlast.Clubimec.istartY CombinatorAbstract Ventures
AppVirality provides tools to build, launch, automate, and track refer-a-friend referral marketing campaigns for mobile apps and SaaS products.
AdTechMarketing TechSaaSSan Francisco, US
Ramakoteswarrao Papineni(Executive Officer, Director)Laxman Papineni(Executive Officer, Director)in
Archera provides a management platform and insurance/financing products that help organizations purchase public cloud resources with reduced financial risk and optimized costs through automated cost transparency and discount optimization.
Cloud ComputingEnterprise SoftwareFintechSaaS
Aran Khanna(Founder)inNikhil Khanna(Founder)in
Co-investorsAmplify PartnersRidge Ventures
Arrived enables individuals to invest in residential rental properties by purchasing fractional shares starting at $100.
B2B MarketplacesFintechMarketplacesPropTechSeattle, US
Ryan Frazier(Founder)inKenny Cason(Founder)inCameron Wu(VP of Investments)inJoel Mezistrano(Executive Officer)Alejandro Chouza(Founder)Kenneth Cason(Founder)
Co-investorsForerunner VenturesSalesforce VenturesBezos ExpeditionsCore Venture CapitalGood FriendsTactile Ventures+7 more
Big Box VR is a virtual reality game studio behind POPULATION: ONE, a squad-based VR battle royale featuring a vertical combat system that lets players climb, fly, and fight across the map.
GamingSeattle, US
Gabe Brown(Director)inChia Chin Lee(Executive Officer, Director)in
BoardJacob Mullins(Director)in
Co-investorsGraph VenturesGSR VenturesOutpost CapitalShasta Ventures
Boltive provides ad security technology that detects and blocks malicious, deceptive, and non-compliant ads in real time across web, mobile, and in-app environments before they reach users.
AdTechAI & Machine LearningCybersecurityMarketing TechSaaS
Pamela Slea(Chief Executive Officer)inChristine Desrosiers(Chief Product Officer)inCatherine Mietek(Chief Marketing Officer)inKC Reaney(Chief Technology Officer)in
Co-investorsFlying Fish VenturesSeaChangeWharton Alumni Angels
Boundless aggregates underutilized GPU capacity from distributed operators to provide lower-cost compute infrastructure for AI inference, training, and evaluations.
AI & Machine LearningCloud ComputingData & Infrastructure
Brian Retford(Founder)Dee Coakley(Founder)Doug Rand(Founder)Eamon Leonard(Founder)Emily Castles(Founder)Frank Laub(Founder)
Co-investorsLvna CapitalAda VenturesAdapt VenturesForefront VentureFoundryIDEA Fund 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-investorsSuffolk TechnologiesPioneer Square Ventures
Kate Wallich(Founder)in
Co-investorsAlumni VenturesCrush VenturesGraham Walker VentureMaC Venture Capital
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 PartnersMadrona Venture GroupTheory VenturesIn-Q-TelPioneer Square VenturesRedpoint Ventures
EasyPost provides a RESTful API platform that simplifies shipping and logistics operations for businesses.
AI & Machine LearningEnterprise SoftwareLogistics & Supply ChainSaaSSan Francisco, US
Jarrett Streebin(Founder)in
Co-investors137 VenturesAcequia Capital (AceCap)Bow CapitalEastward Capital PartnersFundersClubGarage Capital+44 more
Enzzo is an AI product-development platform that helps product companies define pipelines, automate workflows, and generate artifacts such as requirements, briefs, specs, competitive analyses, concept images, and bill-of-materials estimates.
AI & Machine LearningEnterprise SoftwareSaaSSeattle, US
Ford Davidson(Founder)
Co-investorsUnlock Venture Partners
Gradient manufactures a window-mounted 120V heat pump for residential heating and cooling that installs without drilling or refrigerant handling.
CleantechClimate TechHardwarePropTechSan Francisco, US
Vince Romanin(Founder)in
Co-investorsAt One VenturesAutodesk FoundationAzolla VenturesClimate InvestmentCollaborative FundDangerous Ventures+6 more
Gumshoe is an AI visibility platform that monitors how AI search tools recommend products and discuss brands, enabling marketers to understand and influence brand perception across major AI models.
AI & Machine LearningMarketing TechSaaSSeattle, US
Todd Sawicki(Co-founder)inPatrick O'Donnell(Co-founder)in
Co-investorsAscend Venture CapitalGHARAGE VenturesHawke VenturesOpenSky Ventures
HouseWhisper provides an AI platform that assists real estate agents with lead management and client follow-up through conversational AI, allowing agents to extend personalized communication at scale without changing their existing workflows.
AI & Machine LearningPropTechSaaSSeattle, US
Luis Poggi(Founder)inAlex Kutner(Founder)inSpencer Rascoff(Founder)in
Co-investorsIntegra GroupeMayfield Fund
Amplitude provides a customer data platform that unifies customer information across touchpoints and enables teams to segment audiences, activate personalized experiences, and monitor data quality for product and marketing teams.
AI & Machine LearningData & InfrastructureMarketing TechSaaS
Co-investorsAscend Venture CapitalFikaFika VenturesGradient VenturesPSL Ventures
Joon provides app-based 1-1 online therapy delivered by licensed therapists for youth ages 13-26 and their families.
Digital HealthHealthtechMental Health
Emily Pesce(CEO)
Co-investorsCity LightRoute 66 Ventures
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)
Co-investorsAscend Venture CapitalCitta CapitalFirstMile VenturesGreater Colorado Venture FundS3 VenturesAscend+2 more
LifeAt provides desktop software that displays ambient scenes and planning tools on a second monitor to help users maintain focus and organize their work.
ConsumerFuture of WorkSaaSWellness & FitnessSan Francisco, US
Devin Ajimine(Founder)inMarisa Chentakul(Cofounder)Ashika Mulagada(Cofounder)inPouya Rad(Cofounder)inMarisa C(Founder)
Co-investorsPack VenturesPioneerTRAC (Third Round Analytics Capital)Y CombinatorZ Venture CapitalGoodwater Capital+1 more
Octus provides credit intelligence, structured data, and workflow tools covering leveraged loans, high-yield bonds, and private credit across the credit lifecycle from origination to distressed debt.
AI & Machine LearningData & InfrastructureFintech
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)inGregory Gottesman(Director)in
Co-investorsMadrona Venture GroupCowboy VenturesPioneer Square VenturesTrilogy Equity Partners
Meetingflow is an AI meeting assistant for customer-facing teams that provides automatic note-taking, meeting summaries, a meeting-focused AI chat copilot, collaborative meeting plans, and CRM updates.
AI & Machine LearningEnterprise SoftwareFuture of WorkSaaSSales TechSeattle, US
Co-investorsAI2 IncubatorAllen Institute for AI (AI2) IncubatorAscend Venture CapitalFuture AfricaThink+ Ventures Management, LlcPSL Ventures
Olis Robotics provides remote monitoring, control, and troubleshooting solutions for industrial robots, serving over 50% of the global installed industrial robot fleet.
Advanced ManufacturingDeep TechEnterprise SoftwareRoboticsSeattle, US
Co-investorsAlliance of AngelsSeaChangeTectonic VenturesThe W FundUbiquity VenturesPSL Ventures
Overland AI develops ground autonomy solutions for military vehicles and land operations, enabling autonomous mobility without human operators.
AI & Machine LearningDefense TechRoboticsSeattle, US
Byron Boots(Founder)inStephanie Bonk(Founder)inGreg Okopal(Founder)inJonathan Fink(Executive Officer)
BoardChristopher Morales(Director)
Co-investors8VCAlumni VenturesAscend Venture CapitalCubit CapitalOUP (Osage University Partners)Overmatch+8 more
Seattle, US
Aaron Goldfeder(Executive Officer, Director, Promoter)Michael Galgon(Director)Yue Ning(Executive Officer, Director, Promoter)
Co-investorsUnlock Venture Partners
Pipeline CRM is a sales platform designed for businesses to manage customer relationships with streamlined setup and integrations.
Cloud ComputingEnterprise SoftwareSaaSSales TechSeattle, US
James P. Werlin(Executive Officer, Director, Promoter)JP WerlininNicholas Bertolino(Executive Officer, Director, Promoter)in
BoardMichael T. Galgon(Director)
Read AI builds automated meeting summaries, transcripts, and action items using AI to help knowledge workers reduce time spent on meetings, emails, and messages.
AI & Machine LearningEnterprise SoftwareFuture of WorkSaaSSeattle, US
David Shim(Founder)inRobert Williams(Co-founder)inElliott Waldron(Founder)inRob Williams(Founder)Robert A. Williams(Founder)
BoardBrad Twohig(Director)
Co-investorsMadrona Venture GroupIPVSmash Capital
Recurrent builds software and data analytics tools to help consumers and dealerships transition to electric vehicles and optimize EV adoption.
Climate TechData & InfrastructureMobility & TransportationRetail TechSaaS
Scott Case(Founder)in
Co-investorsArcTern VenturesAscend Venture CapitalAutomotive Ventures MobilityE8 AngelsEnerTech CapitalGoodyear Ventures+6 more
Remarkably provides marketing business intelligence software for multifamily and apartment operators, aggregating data from property management systems, CRMs, and Google Analytics into a central view for channel performance, ROI analysis, reporting, and forecasting.
Marketing TechPropTechSaaSSeattle, US
Anna-Lea Dieringer(Executive Officer, Director, Promoter)Erina Malarkey(Executive Officer, Director, Promoter)Thomas A McCann III(Director)
Co-investorsPSL VenturesWildcat Venture Partners
Ripl is a content creation platform that helps small businesses, real estate agents, restaurants, and nonprofits create professional social media videos and ads for platforms like Instagram, Facebook, and YouTube.
Creator EconomyMarketing TechSaaSKirkland, US
Paul Ingalls(Executive Officer, Director, Promoter)inDANA DYKSTERHUIS(Executive Officer, Director, Promoter)
Co-investorsTechstarsTrilogy Equity Partners
SageOx builds a team-memory platform that captures decisions, discussions, and AI agent sessions and makes that context available to both people and AI assistants.
AI & Machine LearningDeveloper ToolsFuture of WorkSaaSSeattle, US
Ajit Banerjee(Founder)inMilkana Brace(Founder)inRyan Snodgrass(Founder)in
Co-investorsCanaan PartnersA.Capital VenturesFounders' Co-op
SecureSave is an employer-sponsored emergency savings account designed to help employees build and maintain financial security through automated, accessible savings tools.
FintechHR TechSaaSWellness & Fitness
Suze Orman(Co-Founder)inDevin(Co-Founder & CEO)Bassam(Co-Founder & CTO)
Co-investorsSeaChangeAltos Ventures
SecureSave provides employer-sponsored Emergency Savings Accounts (ESAs) that let employees automatically save from their paychecks to cover unexpected expenses.
FintechHR TechSaaS
Co-investorsAlumni VenturesTruist Ventures
Shipium provides an AI-powered shipping platform for modern supply chains, letting retailers and shippers automate carrier selection, optimize shipping decisions, and manage execution and billing across the shipment lifecycle.
AI & Machine LearningE-commerceLogistics & Supply ChainSaaSSeattle, US
Jason Murray(Executive Officer, Director)inDavid McCormick Brown(Executive Officer, Director)
BoardJulie Sandler(Director)inChuck Stonecipher(Director)in
Co-investorsGood FriendsInsight PartnersTrilogy Equity Partners
SingleFile provides entity compliance management for investment organizations managing complex structures like fund vehicles, SPVs, portfolio companies, and holding companies across all U.S. states.
AI & Machine LearningEnterprise SoftwareFintechLegalTechSaaSSeattle, US
Aaron Finn(Executive Officer, Director)in
BoardJaclyn Hester(Director)Greg Gottesman(Director)Ramana Venkata(Director)
Sofy is a no-code test automation platform for mobile apps that runs end-to-end testing from the CI/CD pipeline on real physical devices without requiring code.
AI & Machine LearningDeveloper ToolsSaaSBellevue, US
Syed Hamid(Founder)in
Co-investors500 GlobalVoyager CapitalGTMfund
Starfish Space develops Otter, an autonomous satellite servicing vehicle that uses electric propulsion to dock with satellites for life extension and disposal.
Deep TechHardwareSpace TechTukwila, US
Trevor Bennett(Founder)inAustin Link(Founder)in
BoardMorgan Beller(Director)inPeter Ortez(Director)Letitia Long(Director)
Co-investorsACTIVATE CAPITAL PARTNERSAlumni VenturesBooz Allen VenturesCarbonDenver VenturesHypothesis+23 more
Super.AI provides intelligent document processing (IDP) software that automates information extraction and downstream business processes from documents for enterprises in logistics, shipping, financial services, and technology sectors.
AI & Machine LearningData & InfrastructureEnterprise SoftwareWilmington, US
Brad Cordova(Founder)in
Co-investorsDiscovery Ventures III Gmb H & Co. KGMosaic VenturesNFXSeaplane Ventures
TeamSense is an AI-powered, text-based platform that automates attendance tracking, absence reporting, and multilingual worker communication for frontline teams, syncing with HRIS systems.
AI & Machine LearningFuture of WorkHR TechSaaSEverett, US
Sheila Stafford(Co-founder & CEO)inAlison Teegarden(Co-founder & COO)in
BoardBrett Queener(Director)inSoojeong Shin Anderson(Director)
Co-investorsBonfire VenturesGingerbread CapitalGrowth Warrior CapitalIngeborg InvestmentsIrishAngelsOperator Collective
Tin Can makes a Wi-Fi landline phone for children that allows voice calls only to a parent-approved contact list, blocking strangers, robocalls, and scammers.
ConsumerDirect to ConsumerHardwareSeattle, US
GraemeChet Kittleson(Founder)inMax Blumen(Founder)inGraeme Davies(Founder)
Co-investorsCollaborative FundData TechGreylock PartnersImaginary Venture CapitalMarketplaceNewfund Capital+2 more
TrovaTrip organizes ethical tourism experiences that prioritize meaningful connections and cultural respect.
ConsumerImpact & Social GoodMarketplacesTravel & HospitalityPortland, US
Christopher Nicholas Poggi(managing member)Brandon Bruce Denham(managing member)Nick Poggi ✈️(Founder)inLauren Schneider(Founder)inBrandon Denham(Founder)Nick Poggi(Founder)
Co-investorsElevate CapitalMadrona Venture GroupOregon Venture FundPortland Seed Fund
Wildtype grows salmon directly from fish cells using cellular agriculture, allowing production of seafood without wild-caught or farmed fish.
BiotechClimate TechFoodTechSan Francisco, US
Justin Kolbeck(Founder)inArye Elfenbein(Founder)inJustin Kolbeck Arye Elfenbein(Founder)
BoardJohn Melas-Kyriazi(Director)
Co-investorsBay Bridge Ventures ClimateCRV (Charles River Ventures)Maven VenturesMission BiocapitalRoot Ventures Manager, LlcS2G Investments+19 more
B2B lumber and building materials marketplace
Seattle, US
MATTHEW MEYERS(Executive Officer, Director, Promoter)MICHAEL GALGON(Executive Officer, Director)BLAKE PATTON(Director)
Co-investorsFamily Angel Management FundSeaChangeTech Square VenturesAscendCrosslink Capital
Zip is an AI platform for enterprise procurement that automates and optimizes the B2B purchasing process from intake to payment.
AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US
Rujul Zaparde(CEO and Cofounder)inLu Cheng(CTO and Cofounder)inLarry Diamond(Executive Officer, Director)inMartin Brooke(Executive Officer)Peter Gray(Executive Officer, Director)
BoardPhilip Crutchfield(Director)
Co-investorsY CombinatorTiger Global ManagementAirAngelsAlkeon InnovationBond Capital ManagementCRV (Charles River Ventures)+14 more
Zucca is a product development platform for consumer packaged goods (CPG) innovation and R&D teams that connects formulas to live supplier specs, real-time costs, and regulatory constraints.
AI & Machine LearningFoodTechSaaS
Co-investorsAcre Venture PartnersAIStudioPSL Ventures
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
555 Bryant StreetAlertiveBoundless ImmigrationCopperEvergreen RenewablesFelix & FidoGemmistGenbaGlowKevalaLevMaximalLearningNextStep InteractiveOutgoTally
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.


















.png)



























.jpeg)





















































































































.jpg)












