Fielding a deep bench of ‘highly skilled attorneys’, Cooley LLP is well-regarded for its experience trying complex commercial cases at every level of the state and federal court systems as well as before international arbitral tribunals. The team’s caseload includes cases concerning antitrust, consumer protection, licensing and contractual disputes, securities, and IP issues, among others. Litigation department chair Michael Attanasio is based in San Diego; his recent experience includes successfully representing Sony in a class action that alleged unfair handling of consumer warranties for televisions. Also in the San Diego office, Mazda Antia heads the Southern California business litigation department. Bay Area lawyers Shannon Eagan and Beatriz Mejia, Chicago partner Ian Shapiro, and Boston-based securities litigation expert Luke Cadigan round out the department’s leadership group.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Cooley LLP provides exceptional service. and are very capable of handling any corporate investigation with professionalism.

  • 'They treat the client with the outmost respect and the atmosphere in the team is very upbeat. I would recommend them in the blink of an eye.’
  • ‘I have worked with Cooley attorneys in connection with internal investigations on several occasions. Each time, they have brought deep industry and subject matter expertise to each matter. They develop and thoughtful and practical approach to each matter and their communication during the process is outstanding.’

  • ‘There are many firms that have highly skilled attorneys who provide quality legal services. What sets the Cooley attorneys that I have worked with apart from other firms is that they are genuinely nice people who make the process of working with and while very accomplished, never appear to have an ego. They are great to work with and really make you feel that they are in a partnership with you, working together towards a common goal.’

  • ‘This team is truly unique. The depth and breath of their knowledge in Bow technology is remarkable. I've been very impressed by their commitment and skills.’

Key clients

  • Chegg
  • Chicago Title
  • Google
  • Molina Healthcare of California
  • The Pac-12 Conference
  • Sony Electronics
  • Pie Insurance
  • University of Southern California
  • OpenAI
  • Vector Flow
  • Dotdash Meredith
  • Inovio Pharmaceuticals, Inc.
  • IQVIA
  • Arnold Schwarzenegger
  • William F. Weld
  • Christine Todd Whitman
  • Clubessential, LLC
  • Meno Holdings
  • SeatGeek

Work highlights

  • Represented Chegg in multiple litigation matters, including the successful defense of a putative class action asserting a number of claims regarding alleged data breaches.
  • Represented SeatGeek in defense of a putative consumer class action that was filed in the Southern District of New York concerning SeatGeek’s changes to its refund policy in response to the COVID-19 pandemic.

Practice head

The lawyer(s) leading their teams.

Michael Attanasio, Mazda Antia, Shannon Eagan, Beatriz Mejia, Ian Shapiro, Luke Cadigan

Other key lawyers

Michael Sheetz, Adam Gershenson, Michelle Doolin