Josh Seidenfeld

Partner
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I represent high-growth technology and healthcare companies and their investors. I love simplifying legalese into actionable decisions for my clients.

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Baseten Secures $150 Million Series D

September 5, 2025

Cooley advised Baseten, a company powering inference for the world’s fastest-growing artificial intelligence products, on its $150 million Series D financing, valuing the company at $2.15 billion.

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Related contacts

Josh Seidenfeld
Partner, Palo Alto
Daniel Y. Lee
Associate, Palo Alto
Alice Wu
Associate, Palo Alto
Sam Thompson
Associate, Santa Monica
Celine Koh
Associate, Palo Alto
Sharon Connaughton
Special Counsel, Washington, DC
John Sellers
Senior Counsel, Palo Alto
Kimberly Nguyen
Special Counsel, Reston
Mari Dugas
Associate, Washington, DC
Melody Van Horn
Senior Paralegal, Palo Alto
Brian Mitchell
Transactional Quantitative Analyst, San Diego

Related Practices & Industries

EliseAI Secures $250 Million Series E

August 20, 2025

Cooley advised EliseAI, an artificial intelligence company automating complex healthcare and housing systems, on the close of its $250 million Series E financing.

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Josh Seidenfeld
Partner, Palo Alto
Phoebe Huang
Associate, Seattle
Amanda Gonzalez Burton
Associate, New York
Sara Siddiqi
Associate, New York
Kristine Kevorkova
Associate, Santa Monica
Jasmine Hsu
Associate, Palo Alto
Keshara Senanayake
Associate, New York
Sharon Connaughton
Special Counsel, Washington, DC
David Dalton
Associate, Santa Monica
Anisha Mohin
Associate, New York
Jayne M. Munger
Associate, New York
Jessica Li
Associate, Palo Alto
Timothy Shapiro
Partner, Palo Alto
Michael Gladstone
Associate, New York
Joy Chow
Associate, New York
Alexis Finkelberg Bortniker
Partner, San Diego
Amanda A. Main
Partner, Palo Alto
John Sellers
Senior Counsel, Palo Alto
Kimberly Nguyen
Special Counsel, Reston
Andrew Epstein
Special Counsel, Seattle
Julie Wicklund
Special Counsel, Palo Alto
Ryan Bowers
Associate, Washington, DC
Joshua Elefant
Associate, Palo Alto
Jimmy Gilligan
Associate, Boston
Shelby Saunders
Associate, New York
Jon Turk
Senior Paralegal, Washington, DC
Chris Rhem
Paralegal Specialist, San Francisco
Brandon Lefebvre
Quantitative Analyst, Boston
Kevin Gurley
Quantitative Analyst, New York

Related Practices & Industries

Andreessen Horowitz Leads Fortuna Health’s $18 Million Series A

July 21, 2025

Cooley advised Andreessen Horowitz, a venture capital firm, as the lead investor in Fortuna Health’s $18 million Series A financing. Josh Seidenfeld, Thomas Heiser and Amanda Gonzalez Burton led the Cooley team advising Andreessen Horowitz.

Related contacts

Josh Seidenfeld
Partner, Palo Alto
Thomas Heiser
Associate, Palo Alto
Amanda Gonzalez Burton
Associate, New York

Related Practices & Industries

Decagon Secures $131 Million Series C

June 23, 2025

Cooley advised Decagon, an innovator in conversational artificial intelligence agents for customer experience, on its $131 million Series C financing round, pushing its total funding to $231 million.

Related contacts

Josh Seidenfeld
Partner, Palo Alto
Zi Ye
Associate, Palo Alto
Yichen Liu
Associate, Palo Alto
Daniel Y. Lee
Associate, Palo Alto
John Sellers
Senior Counsel, Palo Alto
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Sharon Connaughton
Special Counsel, Washington, DC
David Dalton
Associate, Santa Monica
Christopher Suhler
Associate, Colorado
Irene Sun
Associate, Palo Alto
Melody Van Horn
Senior Paralegal, Palo Alto
Brian Mitchell
Transactional Quantitative Analyst, San Diego

Related Practices & Industries

Decagon Secures $131 Million Series C

June 23, 2025

Cooley advised Decagon, an innovator in conversational artificial intelligence agents for customer experience, on its $131 million Series C financing round, pushing its total funding to $231 million.

Read more

Related contacts

Josh Seidenfeld
Partner, Palo Alto
Zi Ye
Associate, Palo Alto
Yichen Liu
Associate, Palo Alto
Daniel Y. Lee
Associate, Palo Alto
John Sellers
Senior Counsel, Palo Alto
Mark Windfeld-Hansen
Senior Counsel, Palo Alto
Sharon Connaughton
Special Counsel, Washington, DC
David Dalton
Associate, Santa Monica
Christopher Suhler
Associate, Colorado
Irene Sun
Associate, Palo Alto
Melody Van Horn
Senior Paralegal, Palo Alto

Related Practices & Industries

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Admissions and credentials

California

Memberships and affiliations

The State Bar of California