Silicon Valley

The Silicon Valley Office is a thriving contributor to Weil’s remarkable record of success. The office boasts “gold standard” practice groups in the areas of Banking & Finance, Complex Commercial Litigation, Cybersecurity, Data Privacy & Information Management, Mergers & Acquisitions and Private Equity, IP, Technology & Science Litigation and Technology & IP Transactions. All practice groups in the Silicon Valley Office share a common passion for innovation and technology as well as a commitment to efficiency and excellence.

These values have earned the office an impressive client list, including such leading companies and private equity firms as Advent International, Alibaba, Altria, Bio-Rad Laboratories, Blackstone, Coversica, Francisco Partners, Galvanize Climate Solutions, Gannett Co., Genstar Capital, Getty Images, The Gores Group, Goldman Sachs, HP Inc., lululemon, Meta Platforms, Micron Technology, Microsoft, Nike, Norwest Venture Partners, Paramount Global, Permira, SoftBank, Sumeru Equity Partners, TCV, Temu, Trive Capital and TPG, among others.

• Leaders in M&A and Private Equity: Craig Adas and Kyle Krpata were recognized for both Corporate/M&A and Private Equity: Buyouts as leading lawyers in Chambers USA California in 2024.
• Technology Savvy: Doug Lumish, Anne Cappella and Karen Ballack were recognized in the 2025 edition of Managing Intellectual Property’s IP Stars. Karen was previously recognized among the Women Leaders in Tech Law (Intellectual Property) in The Recorder’s 2024 California Legal Awards, among the Top Intellectual Property Lawyers in California by the Daily Journal in 2022 and 2024, and was previously named a 2022 Technology Lawyer of the Year at the Euromoney Women in Business Law Americas Awards.
• Top Ranked Litigators: Kyle Krpata was named to Lawdragon’s 2026 Leading Global Entertainment, Sports & Media Lawyers list. Anne Cappella, Gabriel Gross, Doug Lumish, Bambo Obaro and David Singh were named to Lawdragon’s 2026 Leading Litigators in America list. Previously, David was named to Lawdragon’s 2026 Leading Global Entertainment, Sports & Media Lawyers list, among the Top 100 Lawyers and as a Leading Commercial Litigator by the Daily Journal in 2025, and as a Law360 MVP in Class Action in 2023; Bambo was named among the Top 100 Lawyers by the Daily Journal in 2024; and Anne was named a California Trailblazer by The Recorder in 2020.
• Award Winning Female Partners: Karen Ballack was recognized as a top tech lawyer by the Daily Journal in 2022 and 2024. Anne Cappella was named Technology Lawyer of the Year at the Euromoney Women in Business Law Americas Awards in 2023.
• Deep Bench of Rising Stars: Justina Chen was named a Rising Star at the 2024 Power of Women to Make a Difference Awards Luncheon, hosted by United Way of New York City. Bambo Obaro was named to Benchmark Litigation’s 2022 40 & Under Hot List, his second consecutive year on the list.

Philanthropy is a cornerstone of the Silicon Valley office. Through its “Weil Gives Back” program, lawyers and staff collaborate with local charities, such as Second Harvest Food Bank, Community Legal Services in East Palo Alto, Progeria Research Foundation, Wardrobe for Opportunity, American Lung Association and the Justice & Diversity Center of the Bar Association of San Francisco, with respect to meaningful, and often life-changing, community service and pro bono legal projects.

The Silicon Valley office’s dedication to the community is evident through its history of pro bono success.  For example, Weil served as co-counsel with the Center for Constitutional Rights and others in reaching a landmark settlement in the federal class action Ashker v. Governor of California that ended indeterminate, long-term solitary confinement in all California state prisons.

Over the years, Silicon Valley lawyers have also contributed thousands of hours of pro bono service to the Legal Aid Society of San Mateo County, including a recent case involving relief for a victim of family elder abuse.