Deborah A. Marshall



1001 Page Mill Road
Building 1
Palo Alto, California 94304
+1 650 565 7004

Admissions & Certifications

Deborah A. Marshall


DEBORAH A. MARSHALL is a partner and co-founder of the Palo Alto office who concentrates her practice on strategic business counseling for emerging growth companies and investors at all stages of development, from start-up entrepreneurs to publicly traded entities and technology-based, multinational corporations. 

Deborah has advised issuers, investors and investment banking firms in the Internet, software, electronics, clean technology, media, entertainment, biopharmaceutical, genomics, medical device and diagnostics sectors. She has significant experience in venture capital financing, mergers and acquisitions, public offerings, private equity and strategic partnerships.

Deborah is a co-leader of Sidley's corporate venture capital group which represents strategic venture investors in the technology, life sciences, financial services and consumer products/lifestyle sectors. Sidley has one of the most extensive and long-standing corporate venture practices of any other law firm with a firm grasp on the complexity and unique challenges these investors face.

A frequent speaker on issues related to venture capital, emerging growth companies, life sciences, public securities and entrepreneurship, Deborah has been a guest lecturer on entrepreneurship at the University of California Berkeley Haas School of Business, as well as a member of the faculty of the Haas Business School’s Global Bio-Executive Program.

Awards & Honors

  • Life Sciences Star in the 2012–2014 editions of LMG Life Sciences for her outstanding finance and transactional work.
  • The Best Lawyers in America in Corporate, M&A, Securities, Venture Capital, Biotechnology, Securities/Capital Markets and Corporate Law each year since 2007–2016.
  • Consistently recognized as a leading practitioner in the area of Venture Capital and Emerging Companies Law by The Legal 500 US. Clients recently noted in the 2015 edition, “The firm has broadened its client base with a number of corporate venture funds, thanks in part to the efforts of Deborah Marshall.”

Selected Presentations

  • Moderator, “Corporate Venture Funding: What You Need to Know,” Venture Summit West Conference (February 2015)
  • Moderator, “Corporate VCs – Strategic Funding,” Venture Summit West Conference (February 2014)
  • Moderator, “The Next Frontier: Life Sciences Convergence with Silicon Valley," California Healthcare Institute Annual Meeting 2014 (November 2014)
  • The Entrepreneur’s Guide to Business Law, 2nd Edition – contributions include Chapter 5 (“Structuring the Ownership”), Chapter 13 (“Venture Capital”) and Chapter 17 (“Going Public”)
Memberships & Activities
  • State Bar of California
  • Advisory Board of the Women’s Technology Cluster (non-profit organization focused on entrepreneurship for women in technology), 1999–2006
  • Visiting Committee for Northeastern University School of Law, 2001–2004
  • Columbia University Campaign Council for Undergraduate Education, 2009 - Chair, Columbia University School of General Studies Annual Fund
  • Studies Visiting Committee Columbia University School of General 
  • Texas Medical Center Accelerator (TMCx), Advisor

News & Achievements