/Investor DB

Seaplane Ventures — Full Portfolio

16 tracked investments · listed companies and verified rows first

Atriosatrios.com

Warm-intro marketplace connecting tastemakers.

Taylor Offer(Founder)in

PartnerJoe Magyer· solo GP

Co-investorsBerkeley FrontierBlitzscaling VenturesGaingelsPark Rangers Capital

Better Authbetter-auth.comin𝕏Seedacquired by Vercel

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

Construexconstruex.com.mxJul 2023

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

Hyperspellhyperspell.comin𝕏Seed

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

micro1micro1.aiin𝕏

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

Packsmithpacksmith.ioin𝕏Jun 2026

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

Packsmithpacksmith.aiin𝕏Nov 2023

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 Technologyrainwalkpetinsurance.cominApr 2024 · $4M

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

Rocketablerocketable.comin𝕏Seed

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

Ruckruck.com

PartnerJoe Magyer· solo GP

Co-investorsYonder VC

Supersuper.aiin𝕏

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

Tratatrytrata.comin𝕏Seed

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

Unifizeunifize.comin𝕏

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

Upkidupkid.com

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 Labsverialabs.comin𝕏Seed · Feb 2026 · $3.2M

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 Intelligencexenaintelligence.comin𝕏

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.