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Seth J. Helfgott
Partner
Corporate
San Francisco
shelfgott@wsgr.com

D415-947-2124

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  • Trusted Corporate Experience

    Seth works with companies and start-ups in venture capital transactions, mergers and acquisitions, and corporate governance matters.

Seth Helfgott is a partner in the San Francisco office of Wilson Sonsini Goodrich & Rosati, where he focuses on corporate and securities law, including start-ups, venture capital transactions, mergers and acquisitions, and corporate governance matters. He advises entrepreneurs and early-stage businesses, as well as the angel and venture capital investors that finance them. Previously, Seth was an associate in the firm's San Francisco energy practice, and he continues to assist energy and clean technology companies with their corporate and transactional needs.

Experience

Seth Helfgott is a partner in the San Francisco office of Wilson Sonsini Goodrich & Rosati, where he focuses on corporate and securities law, including start-ups, venture capital transactions, mergers and acquisitions, and corporate governance matters. He advises entrepreneurs and early-stage businesses, as well as the angel and venture capital investors that finance them. Previously, Seth was an associate in the firm's San Francisco energy practice, and he continues to assist energy and clean technology companies with their corporate and transactional needs.

Education
  • J.D., Fordham University School of LawMember, Environmental Law Review
  • B.A., Economics, Cornell University
Honors
  • Recognized in the Venture Capital category in the 2025-2026 editions of Chambers USA
Admissions
  • State Bar of California
Credentials
Education
  • J.D., Fordham University School of LawMember, Environmental Law Review
  • B.A., Economics, Cornell University
Honors
  • Recognized in the Venture Capital category in the 2025-2026 editions of Chambers USA
Admissions
  • State Bar of California
Focus Areas
  • Consumer Products and Services
  • Corporate
  • Emerging Companies and Venture Capital
  • Fintech and Financial Services
  • Internet
  • Mergers & Acquisitions
  • Mobility
  • Software
Recent Insights
Client Highlights
Wilson Sonsini Advises Clair Health on $11.6 Million Seed Round
On June 17, 2026, San Francisco-based Clair Health, a wellness wearable start-up designed to monitor hormones, announced an $11.6 million seed round led by Khosla Ventures, with participation from a16z speedrun, Brydge Club, TreeHub, Cartan Capital, AGI House, Insiders VC, and Anne Wojcicki. Wilson Sonsini Goodrich & Rosati advised Clair Health on the transaction.
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News Articles
Wilson Sonsini Practices, Attorneys Recognized in 2026 Chambers USA Guide
The 2026 Chambers USA guide has recognized Wilson Sonsini Goodrich & Rosati as a leading law firm in 44 geography-specific practice categories and named 87 Wilson Sonsini attorneys among the best in their fields. This year, the firm received four new practice area rankings, including in the nationwide National Security and Capital Markets: Convertible Debt categories, and three improved practice area rankings.
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Recent Events
Affiliated Programs
Reindustrialize Summit
Wilson Sonsini is proud to sponsor Reindustrialize Summit, a premier gathering bringing together the builders, investors, policymakers, and operators driving the next era of American industrial and technological leadership.
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Affiliated Programs
How to Position Your Startup for a Fundraise
Wilson Sonsini is pleased to join Newlab for an exciting discussion covering key strategies for early-stage founders preparing to raise their first round of funding. This in-person and virtual session will draw on Wilson Sonsini’s deep experience advising startups through every stage of growth.
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