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Jon O'Connell

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Partner
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Areas of Focus

Overview

Jon O'Connell is a co-lead of the Emerging Companies and Venture Capital practice, a partner in the Corporate Group and a resident in the firm's San Francisco office. He advises startup clients on matters related to corporate governance, venture capital financings, commercial transactions, and mergers and acquisitions. He also represents venture capital funds in equity financings.

Prior to joining the firm, Jon was an early employee and partner at a legal services and technology company providing startups with support to grow and scale their operations. He managed one of the most active venture capital financing teams in the industry having completed over 100 preferred stock equity financings. During his legal career at Am Law 100 firms, he has acted as outside general counsel for hundreds of startups in industries ranging from food tech to fintech.

Career & Education

    • University of California, Santa Barbara, B.A., 2008
    • Santa Clara University School of Law, J.D., 2011
    • University of California, Santa Barbara, B.A., 2008
    • Santa Clara University School of Law, J.D., 2011

    • California
    • California

Jon's Insights

Firm News | 1 min read | 12.02.25

Crowell & Moring Represents Antares in $96 Million Series B

San Francisco – December 2, 2025: Crowell & Moring represented Antares, an advanced nuclear energy startup building a small modular nuclear reactor, in connection with its $96 million Series B funding round....

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Insights

Firm News | 1 min read | 12.02.25

Crowell & Moring Represents Antares in $96 Million Series B

Firm News | 1 min read | 11.24.25

Crowell & Moring Represents Aptible in Strategic Combination With Opti9

Client Alert | 6 min read | 07.22.25

The One Big Beautiful Bill Act Expands Favorable QSBS Treatment

Firm News | 1 min read | 06.30.25

DataBahn.ai Raises $17M Series A To Advance Security-Native Data Pipelines

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Practices

Industries

Jon's Insights

Firm News | 1 min read | 12.02.25

Crowell & Moring Represents Antares in $96 Million Series B

San Francisco – December 2, 2025: Crowell & Moring represented Antares, an advanced nuclear energy startup building a small modular nuclear reactor, in connection with its $96 million Series B funding round....

View All Insights