Take your brand
somewhere new.

security open source dev tools
Chainguard
2025
Dev Tools Fintech Hardware Creators
Stripe
2020 – 2022
AI Hardware
Groq
2025
B2B HR Tech Fintech
Gusto
2017 – 2020
AI Fintech Consumer
Era
2024
Gen Z Social
Verse
2023 - 2024
Consumer AI Hardware Kidtech
Nuha
2024
Crypto
Angstrom
2024
Marketplace Food Tech
Open
2023
B2B SaaS Future of Work
Wingspan
2023-2024
Crypto Security Dev Tools FinTech
Portal
2022 – 2023

TL DR

JTrain is an inter-disciplinary design offering led by Jason Marder. He draws on a decade of experience, most notably leading large-scale projects and teams at Stripe and Gusto.We partner with world-positive companies working on complex problems in uncharted opportunity spaces. We seek partners who believe that exceptional design can materially impact their business and influence markets at large.

Ongoing list of partners

a16z, Acctual, Angstrom, Audacious Ventures, Chainguard, Daylight, Dorsal Health, Eclipse, Era, Fragile, Gradient Network, Groq, Gusto, Hume, Ionic, Medallion Health, MIT, Moth Fund, Nebular, Nuha, Open, OpenAI, OpenBlock, Pledge, Portal, Privy, Seifdune, Slingshot AI, Stationhead, Stripe, Tango, Thatch, Tome, Verse, Wingspan

6:33pPST
9:33pEST

Made in NY, based in Truckee, building worldwide.

Stand clear of the closing doors please.