The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon

Fenwick & West LLP

Work +1 650 988 8500
Mountain View, New York, San Francisco, Seattle, Shanghai

Mark Leahy

Fenwick & West LLP

Work Department



Mark Leahy, a seasoned advisor to technology companies on a broad range of corporate transactional matters, focuses on providing legal solutions that advance his clients’ business objectives. With a deep understanding of each client’s business and competitive landscape, Mark provides practical guidance through the complex legal and business hurdles of company growth. He enjoys learning about each of his clients, understanding their needs, and playing a central role in their business transactions. Mark’s practice focuses on venture capital financings, corporate governance, mergers and acquisitions, and public offerings. His expertise spans a wide range of technologies, including software, semiconductor, internet/e-commerce, and data management and storage. His client roster is comprised of companies at all stages of development – from entrepreneurs seeking company formation advice, to start-ups seeking additional funding, to public company acquirers in search of targets in the technology space. Representative Transactions •Represented ParAccel, a company in the big data analytics space, in its last set of financing rounds and its acquisition by database vendor Actian •Representated Pulse news reader maker Alphonso Labs in all of its financing rounds and its acquisition by LinkedIn •Represented approximately 50 start-up companies over the last three years in their various types of financing transactions


Professional Achievements •Mark was recognized as a “Leading Lawyer” in the 2013 Top Legal 500 in the areas of Venture Capital and Emerging Companies. •Mark served for eleven years as a board member of the Churchill Club, a Silicon Valley business and technology forum, and is a Board Emeritus member. Prior to law school, Mark had a career as an engineer at an aerospace company.


In his free time, Mark loves to hang out with his children and take part in their hobbies – including running and skateboarding.

United States: M&A/corporate and commercial

Venture capital and emerging companies

Within: Venture capital and emerging companies

Fenwick & West LLP is widely recognised for its expertise in early-stage financings and growth company work. The team, which is predominantly based in Silicon Valley, is 'in a league of its own', according to a client. San Francisco and New York are other core hubs for the group. Technology and life sciences matters dominate the firm's workload, and it is also well known for handling cryptocurrency, digital health, and gaming mandates. Highlights included San Francisco-based partner Samuel Angus acting for software development company GitHub in its $7.5bn acquisition by Microsoft, while renowned practitioner Cynthia Hess advised technology fitness company Peloton on its $550m Series F financing, which was led by growth equity firm TCV. In another matter, Michael Esquivel advised mobile marketing platform AppLovin on its $400m investment from KKR. Gordon Davidson is another formidable practitioner, and other key partners include Mark Leahy, who shares leadership of the practice with Hess; Mark Stevens, who has established expertise in gaming sector mandates; and New York-based Kristine Di Bacco. Unless stated otherwise, named lawyers are based in Silicon Valley. Ted Wang has left the firm.

[back to top]

Back to index

Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to