- The Legal 500 highlighted Mark Leahy among the nation's leading venture capital and emerging companies lawyers (2022)
- Under Mark's leadership, Chambers USA has repeatedly ranked Fenwick a Tier 1 firm nationally for startups and emerging companies work, as well as a Tier 1 firm in California for venture capital (2020)
With more than 20 years of experience advising technology and life sciences companies on a broad range of corporate transactional matters, Mark provides each client practical guidance through the complex legal and business hurdles of company growth. He enjoys learning about his clients, understanding their needs and playing a central role in their business transactions. Mark serves as co-chair of Fenwick’s startup and venture capital group.
Mark focuses on venture capital financings, corporate governance, mergers and acquisitions and public offerings spanning a wide range of technologies, including artificial intelligence, autonomous transportation and shared mobility, blockchain, cloud and SaaS, consumer goods and retail, digital health, digital media and entertainment, fashiontech, fintech, games, life sciences and robotics.
His client roster includes companies at all stages of development, from entrepreneurs seeking company formation advice to startups seeking additional funding, to public company acquirers in search of targets in the tech space. To each, Mark brings a depth of industry and competitive landscape knowledge, tailoring his advice to advance the company’s business objectives.
Mark is the co-author of Fenwick’s VC financings survey, a quarterly analysis of venture financings closed by Silicon Valley companies.
Mark has deep roots in the tech world and in Silicon Valley. He earned his undergraduate degree in industrial engineering at Stanford University and began his professional life as an engineer at an aerospace company. Mark remains involved in Stanford’s entrepreneurial community. He also served for 11 years as a board member of the Churchill Club, a Silicon Valley business and technology forum, and is currently a board emeritus member.
Working with Mark means having a strategic partner who knows a company’s business and maintains strong relationships with its executive team and board members, and who is dedicated to superior client service. No matter how a company changes or grows, Mark is a readily accessible resource for sound legal solutions and business advice.
Mark enjoys returning every year to his law school alma mater, the University of Chicago, where he is actively involved in recruiting new students into the legal profession.
In his free time, Mark loves to hang out with his children and take part in their hobbies—including running and skateboarding.
The Legal 500 regularly highlights Mark among the nation’s leading venture capital lawyers and has noted him as a “formidable practitioner.”
Education & Admissions
J.D., University of Chicago
M.B.A., University of Chicago
B.S., Industrial Engineering
Admitted to practice in California