Jon O'Connell is a co-lead of the Emerging Companies & 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.


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


Admitted to practice: California

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Corporate and Transactional

Technology Transactions

Digital Health/MedTech

Emerging Companies and Venture Capital

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Crowell EC/VC Team Advises Astra in $10 Million Series A Financing and $30 Million Line of Credit (October 20, 2022)
Firm News / Announcement
Crowell EC/VC Team Represents Marshall Wace LLP in Series B Investment in Elektrofi (June 16, 2022)
Firm News / Announcement
DEAL NOTE: Crowell Advises Firefly Aerospace in $75 Million Series B Financing Round and the Secondary Sale of Noosphere’s Firefly Equity to AE Industrial Partners (March 28, 2022)
Firm News / Announcement
"Board, Officer, or Stockholder Approval? When Each is Required," GrowthStudio (February 2, 2022). Authors: Jon O’Connell, Ryan Flynn and Matthew Moisan.
"Emerging Companies 101: 6 Avoidable Mistakes," GrowthStudio (January 30, 2022). Authors: Jon O’Connell, Ryan Flynn and Matthew Moisan.
DEAL NOTE: Crowell & Moring Advises BayWa Venture GmbH in YoFix Probiotics Investment (December 6, 2021)
Firm News / Announcement
DEAL NOTE: C&M Represents Cultivated Meat Company Ohayo Valley in Pre-Seed Financing (November 30, 2021)
Firm News / Announcement
Crowell & Moring Advises Field Complete in Raising $1.9 Million (October 1, 2021)
Firm News / Announcement
DEAL NOTE: Crowell & Moring Advises Payload in $650,000 Seed Round Financing (September 15, 2021)
Firm News / Announcement
DEAL NOTE: Crowell & Moring Advises Marshall Wace on Series D Investment in InBrace (September 15, 2021)
Firm News / Announcement

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Crowell & Moring LLP is an international law firm with offices in the United States, Europe, MENA, and Asia that represents clients in litigation and arbitration, regulatory and policy, and transactional and corporate matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation and government-facing matters, as well as its ongoing commitment to pro bono service and diversity, equity, and inclusion.

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