David Siegel

David is an unusual startup lawyer in having done sophisticated legal work in both transactional and litigation matters: he is an accomplished startup lawyer and litigator who has extensive experience with our firm in handling a broad range of corporate, transactional, and intellectual property matters, including work on multi-million dollar financings and acquisitions, all in addition to having a deep expertise in handling complex intellectual property, corporate, and commercial litigation matters.


Prior to joining Grellas Shah, David worked for five years at the nationally-recognized firm of Gibson, Dunn & Crutcher, initially out of its New York office and subsequently out of Palo Alto. He has a keen interest in working with startups and has worked closely with early-stage companies since joining the firm while expanding his expertise in the startup field.

David is licensed to practice in California and New York. He has extensive experience in both state and federal courts and has done in-depth work connected with SEC investigations, including managing a team of 30 lawyers in defending a client in a particularly intensive investigation.


20400 Stevens Creek Blvd.
Suite 280
Cupertino, CA 95014
Phone: (408) 255 – 6310
Fax: (408) 255 – 6350
Email: dsiegel@grellas.com


New York University School of Law, J.D., 2003 (Dean’s Scholar, McKay Scholar)

Cornell University, B.A., Math and Philosophy, 2000 (Phi Beta Kappa)