Seaplane Ventures — Full Portfolio
16 tracked investments · listed companies and verified rows first
Warm-intro marketplace connecting tastemakers.
Taylor Offer(Founder)in
PartnerJoe Magyer· solo GP
Co-investorsBerkeley FrontierBlitzscaling VenturesGaingelsPark Rangers Capital
Better Auth is an open-source authentication framework for TypeScript applications that provides composable, plugin-based authentication with support for multiple methods including credential auth, social sign-on, passkeys, and enterprise features.
CybersecurityDeveloper ToolsEnterprise SoftwareSaaSSan Francisco, US
Bereket Engida(CEO)inRavindra MistriinKinfeMichael Tariku(Founder)
PartnerJoe Magyer· solo GP
Co-investorsChapter OneEight CapitalLobster CapitalP1 VenturesPeak XV PartnersPioneer+9 more
Quito
Roberto Alejandro Arroyo Aguirre(Executive Officer, Director)Mauricio Weiss(Director)inSantiago Nicolas Arroyo Aguirre(Executive Officer, Director)
PartnerJoe Magyer· solo GP
Co-investorsZacua Ventures
Hyperspell builds a context platform that connects to enterprise data sources (Slack, email, documents, CRMs, ticketing systems) and synthesizes them into a unified, permission-aware knowledge graph accessible to AI agents.
AI & Machine LearningData & InfrastructureEnterprise SoftwareSaaSSan Francisco, US
Conor Brennan-Burke(CEO)inManu Ebert(Founder)inConor Brennan-Burke Manu Ebert(Founder)Ben Horowitz(Founding Engineer)
PartnerJoe Magyer· solo GP
Co-investorsDraper B1Eight CapitalFjor FoundersImagination CapitalLyra Capital Pty LtdMento vc+23 more
micro1 operates a data lab that produces expert human data, reinforcement-learning training environments, and contextual evaluations to train frontier AI models and assess AI agents.
AI & Machine LearningData & InfrastructureRobotics
Ali Ansari(Founder)in
PartnerJoe Magyer· solo GP
Co-investors01 AdvisorsActivant Capitalalphabet angelsAntlerCoho DeeptechCompanyon Ventures+10 more
Packsmith provides technology-driven order fulfillment and logistics services for e-commerce brands, offering customizable fulfillment, greater operational transparency, and faster shipping.
AI & Machine LearningE-commerceLogistics & Supply ChainRetail TechSaaS
Co-investorsCosmic Venture PartnersEvolution VenturesInterplay Ventures Early Stage Management LlcM13Maiora Rebel VenturesMPG Fund+8 more
Packsmith is a technology-driven third-party logistics (3PL) and fulfillment provider that offers order fulfillment, customizable unboxing, and faster shipping for e-commerce brands.
AI & Machine LearningE-commerceLogistics & Supply ChainRetail TechSaaSLos Angeles, US
Simon Robb(Founder)in
PartnerJoe Magyer· solo GP
Co-investorsPrana Tech VenturesSpacecadet VenturesTrust FundVery Serious VenturesBanana CapitalFlexport+4 more
Rainwalk provides pet insurance policies with expanded coverage options and enhanced value for cat and dog owners.
ConsumerInsurTechColumbia, US
Joshua Snead(Executive Officer, Director)Tong Wu(Founder)in
PartnerJoe Magyer· solo GP
Co-investorsGlobal Insurance AcceleratorManchesterStory Group, LLCNew Stack VenturesTechstarsBridge InvestmentsInsurtech Gateway Fund
Rocketable acquires software businesses and automates their operations by replacing human staff with AI agents across functions; the company develops tools to coordinate these agents toward shared business objectives.
Enterprise SoftwareSan Francisco, US
Alan Wells(CEO)in
PartnerJoe Magyer· solo GP
Co-investorsMaiora Rebel VenturesRebel FundTrue VenturesY Combinator468 CapitalBloomberg Beta+7 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
PartnerJoe Magyer· solo GP
Co-investorsDiscovery Ventures III Gmb H & Co. KGMosaic VenturesNFXPioneer Square Labs
An AI platform that automates investment research production for hedge funds by interviewing analysts, generating reports, and delivering them via subscription.
AI & Machine LearningEnterprise SoftwareFintechNew York City, US
Eric Cho(CEO)inAlexander ChenWilliam GaoAlice Lu(Founding Engineer)Sam Barton(Chief of Staff)Ronnie Bian(GOAT)
PartnerJoe Magyer· solo GP
Co-investorsFundersClubPioneerY CombinatorAgrolimen VenturesFirestreak VenturesProCap Velocity+1 more
Unifize provides a unified platform for managing compliance and knowledge processes in FDA- and ISO-regulated industries such as manufacturing, life sciences, and aerospace.
Advanced ManufacturingEnterprise SoftwareHealthtechIoTSaaSBengaluru, IN
Ben Merton(Co-founder & CEO)inLakshman Thatai(Co-founder & Head of Product)inAvinash Sultanpur(Co-founder & VP of Engineering)in
PartnerJoe Magyer· solo GP
Co-investorsTechstarsSupermorpheusSaka Ventures
Upkid provides a staffing solution for child care providers to help them address staffing shortages.
B2B MarketplacesEdTechHR TechMarketplaces
Andrew Allison(Founder)in
PartnerJoe Magyer· solo GP
Co-investorsCorazon CapitalDivergent CapitalGutter CapitalFullCircleNewfund Capital
Veria AI is an autonomous pentesting platform that identifies and exploits security vulnerabilities across code repositories, then generates fix recommendations.
AI & Machine LearningCybersecurityDeveloper ToolsEnterprise SoftwareSan Francisco, US
Cayden Liao(Founder)inJayden Sarveshkumar(Founder)inStephen Xu(Founder)in
PartnerJoe Magyer· solo GP
Co-investorsY CombinatorAntigravity CapitalEight CapitalAmino CapitalBBQ CapitalBlast.Club+12 more
XENA Intelligence provides AI-powered software and consulting services to help ecommerce brands optimize listings, campaigns, and operations across marketplaces like Amazon.
AdTechAI & Machine LearningData & InfrastructureDirect to ConsumerE-commerceMarketing TechSaaSLouisville, US
Akhil Suresh Nair(Founder)in
PartnerJoe Magyer· solo GP
Co-investorsBluegrass Angel VentureKeyhorse CapitalRender CapitalTechstars
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.



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