# Justin Fineberg

> Justin Fineberg is the co-founder and CEO of Cassidy, a New York-based platform that lets non-technical teams build AI agents and automations powered by their own company data. He got early beta access to OpenAI's GPT-3 in 2020, left a product role at Blade in 2022, and teamed up with engineer Ian Woodfill to launch Cassidy. Alongside building the company, he grew an audience of more than 400,000 followers across TikTok, Instagram, X and YouTube by explaining how AI reshapes business. Cassidy raised a $10M Series A led by HOF Capital in 2025, bringing total funding to roughly $13.7M.

- **Role:** Co-Founder and CEO at Cassidy
- **Organizations:** Cassidy, Blade
- **Nationality:** American
- **Education:** University of Michigan - Stephen M. Ross School of Business
- **Known for:** Co-founded and leads Cassidy, an enterprise AI automation platform, Grew an audience of 400,000+ (reported up to 500,000) across TikTok, Instagram, X and YouTube, Raised a $10M Series A led by HOF Capital (total funding ~$13.7M)

## Career timeline

- **2020** — Received early beta access to OpenAI's GPT-3, a turning point in his career
- **2022** — Left his product manager role at Blade to build an AI company
- **2023** — Co-founded Cassidy with engineer Ian Woodfill
- **2025** — Cassidy raised a $10M Series A led by HOF Capital, bringing total funding to ~$13.7M

## Achievements

- Co-founded and leads Cassidy, an enterprise AI automation platform
- Grew an audience of 400,000+ (reported up to 500,000) across TikTok, Instagram, X and YouTube
- Raised a $10M Series A led by HOF Capital (total funding ~$13.7M)
- Featured in Bloomberg, Fortune, and AdAge
- Spoke at companies including Amazon, Healthline, and Microsoft

## Latest updates

- **2025-09** — Cassidy announced a $10M Series A led by HOF Capital with participation from The General Partnership, Neo, Alumni Ventures and others.

## Links

- Website: https://www.justinfineberg.com/
- LinkedIn: https://www.linkedin.com/in/justin-fineberg
- Twitter/X: https://x.com/JustinFineberg
- YouTube: https://www.youtube.com/@justinfineberg
- Instagram: https://www.instagram.com/justinfineberg_/
- TikTok: https://www.tiktok.com/@justinfineberg

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Profile page: https://yespress.io/justin-fineberg
Published by YesPress — https://yespress.io
Last updated: 2026-07-16