About Thomas

Thomas practices general corporate and securities law, focusing on emerging companies and venture capital funds. He advises clients across all stages of growth, with an emphasis on venture financings, corporate governance and strategic transactions. 

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Apreo Health Closes $130 Million Series B

Apreo Health Closes $130 Million Series B

August 7, 2025

Cooley advised VC firms Norwest and F-Prime on their investment in Apreo Health’s $130 million Series B financing.

Lawyers Tara Capsuto, Thomas Heiser, Tucker Cochenour and Alex Maki led the Cooley team advising Norwest and F-Prime.

Related contacts

Tara Capsuto
Partner, San Francisco
Thomas Heiser
Associate, Palo Alto
Tucker Cochenour
Associate, Palo Alto
Alex Maki
Associate, Palo Alto

Related Practices & Industries

Healthcare
Emerging Companies
Venture Capital

Courtyard Closes $30 Million Series A

Courtyard Closes $30 Million Series A

July 24, 2025

Cooley advised Courtyard, developer of a digital collectible trading and storage platform designed for the secure exchange and management of graded physical trading cards, on its $30 million Series A financing. Josh Seidenfeld, Thomas Heiser and Rachel Robichaux led the Cooley team.

Related contacts

Josh Seidenfeld
Partner, Palo Alto
Thomas Heiser
Associate, Palo Alto
Rachel Robichaux
Associate, Palo Alto

Related Practices & Industries

Emerging Companies
Venture Capital
Fintech and Payments
Blockchain Technology and Tokenization

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

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

Digital Health
Healthcare
Emerging Companies
Venture Capital

HAYA Therapeutics Closes $65 Million Series A

HAYA Therapeutics Closes $65 Million Series A

May 8, 2025

Cooley advised HAYA Therapeutics, a biotechnology company pioneering precision RNA-guided regulatory genome-targeting therapeutics, on its $65 million Series A financing round. The round was led by Sofinnova Partners and Earlybird Venture Capital, with participation from Eli Lilly and Company, ATHOS, +ND Capital, Alexandria Venture Investments, and LifeLink Ventures, with additional support from existing investors Apollo Health Ventures, Longview Ventures (an affiliate of Broadview Ventures), 4see ventures, BERNINA Bioinvest and Schroders Capital.

Lawyers Danielle Gershowitz, Josh Seidenfeld, Amanda Gonzalez Burton, Kristine Kevorkova and Thomas Heiser led the Cooley team advising HAYA Therapeutics.

Related contacts

Danielle Gershowitz
Partner, New York
Josh Seidenfeld
Partner, Palo Alto
Amanda Gonzalez Burton
Associate, New York
Kristine Kevorkova
Associate, Santa Monica
Thomas Heiser
Associate, Palo Alto
Harriet Fraser
Associate, New York

Related Practices & Industries

Emerging Companies
Venture Capital
Biotechnology
Life Sciences

Andreessen Horowitz Closes $80 Million Series B Investment in Story Protocol at a $2.25 Billion Valuation

Andreessen Horowitz Closes $80 Million Series B Investment in Story Protocol at a $2.25 Billion Valuation

August 21, 2024

Cooley advised Andreessen Horowitz, the lead investor, on its $80 million Series B investment in Story Protocol, the developer of an intellectual property (IP) blockchain platform offering ways to create, govern and license IP for the next generation of digital builders and consumers. This funding round brings Story Protocol to a $2.25 billion valuation. Nancy Wojtas led the Cooley team advising the a16z crypto division fund of Andreessen Horowitz, a Silicon Valley-based venture capital firm that invests in bold founders, innovators and entrepreneurs building the future through technology.

Related contacts

Nicholas Yacoubian
Associate, Palo Alto
Thomas Heiser
Associate, Palo Alto

Related Practices & Industries

Emerging Companies
Venture Capital
Blockchain Technology and Tokenization
Technology
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Admissions and credentials

New York

Florida

Not admitted to practice in California

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