Thomas Wallerstein- Partner
Tom is a 1999 cum laude graduate of the University of Pennsylvania Law School, where he served as the Executive Articles Editor of the Journal of Constitutional Law. Tom was a finalist in the school’s moot court competition, resulting in an oral argument before U.S. Supreme Court Justice Samuel Alito (then on the Third Circuit Court of Appeals), Ninth Circuit Judge A. Wallace Tashima and New Jersey Supreme Court Chief Justice Deborah Poritz. Based on his performance, Tom was invited to serve as the first judicial law clerk for Justice Peter G. Verniero of the New Jersey Supreme Court.
Prior to law school, Tom attended Butler University from 1986-1989 on a debate scholarship, and studied philosophy, political science, and Russian. He also served on the school’s judicial council. In 1996, he received his undergraduate degree in philosophy from San Francisco State University.
Following law school and his judicial clerkship, Tom
began private practice as an associate in a
prestigious Philadelphia firm where he gained extensive experience in
variety of high-profile matters, including representing two
Philadelphia mayors and trying a federal jury trial.
After founding Colt Wallerstein LLP in 2009, Tom's practices continues to center on high-stakes business and intellectual property litigation. Notable engagements include the following:
Tom lives in San Francisco with his wife, two children and his dog Pug.
Thomas E. Wallerstein
WHAT OUR CLIENTS AND COLLEAGUES ARE SAYING:
"Our company faced one of its darkest hours when we were sued by the industry's two largest competitors. Up against two of the country's largest law firms, Colt / Wallerstein skillfully, aggressively, and economically steered us through two simultaneous "bet the company" trade-secret lawsuits where our very existence was at stake. The firm was retained only days before a critical hearing on a motion for preliminary injunction, and we were continually impressed with the firm's thoughtful and creative strategies. Colt / Wallerstein wrote great briefs, argued persuasively in court, represented our company in two mediations, successfully and economically handled millions of electronic documents, and worked skillfully with expert witnesses. The firm also worked with us to develop a workable fee structure, and they remained on or under budget throughout the litigation. Colt / Wallerstein provided our company with the legal tools we required to thrive in an aggressive and competitive marketplace, and ultimately obtained complete settlements and dismissals of both actions."
Wallerstein argued a very complex opposition to a motion
to remand [brought by] Wilson Sonsini. Tom did nothing
short of a magnificent – in my view stunning – job of
advocacy. Not only could I not have done a better job,
but in many respects I think Tom did a far better job
than I could have done. He was direct, focused, fluid
and 150% knowledgeable about the facts and the law. A
remarkably impressive job.”
Wallerstein is an expert on California’s unfair
competition law (Bus. & Prof. Code s. 17200 et
seq.). A number of my partners and I regularly
represent defendants in consumer class actions
in California courts, and we rely on Tom’s
insight on developments in the law and on his
timely updates whenever new decisions are