Mark Mengelberg

Adam Alper is a leading member of the intellectual property litigation group in Kirkland’s Bay Area office. Focusing primarily on patent and trade secret disputes, and predominantly representing clients in the semiconductor, telecommunications, computer hardware and pharmaceutical industries, Adam regularly litigates high-stakes competitor cases involving concurrent claims of patent, trade secret and copyright violations. These disputes often involve co-pending actions in US District Co...

Noel Matthew Cook is a top attorney recognized by Best Lawyers in the practice area(s) of Trademark Law. Noel Matthew, who practices law in San Francisco, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Noel Matthew is held by other top lawyers in the same geographic and legal practice area.

Noa L. Clark is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Noa L., who practices law in San Francisco, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Noa L. is held by other top lawyers in the same geographic and legal practice area.

Christian H. Cebrian is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law, Land Use and Zoning Law, Litigation - Environmental and Litigation - Land Use and Zoning. Christian H., who practices law in San Francisco, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christian H. is held by other top lawyers in the same geographic and legal practice area.

Rob Fore is a partner in the firm’s Business Law Department and a member of the Private Investment Funds Practice. He joined Goodwin Procter in 2007. Mr. Fore focuses on the structuring, formation and operation of both domestic and international venture capital, buyout, funds-of-funds and other private equity funds and their management companies. He also represents investors in venture capital and buyout funds, as well as and private equity funds and venture capital funds Prior to joini...

David Friedman is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. David, who practices law in San Francisco, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Shawn M. Christianson focuses her practice on insolvency, receiverships, and complex litigation with an emphasis on technology related issues. She represents financial institutions, secured and unsecured creditors, technology companies, receivers, and bankruptcy trustees. Her practice spans the state, federal and bankruptcy courts, as well as out of court proceedings and mediation. She argued, and prevailed at every level from the trial court through the Ninth Circuit, a seminal case on the t...

Fortune 100 companies rely on Valarie Williams to resolve critical multinational antitrust issues in the boardroom and the courtroom. She has innovative ideas for deciding where and when to bring lawsuits to recover compensation for past wrongs, defending against serious allegations brought by the government or civil claimants, and getting a deal through antitrust regulators in multiple jurisdictions. Valarie concentrates her practice in antitrust litigation, with extensive experience in both...

Michael O’Bryan is a partner in the firm’s Corporate Department. His practice focuses on U.S. and international mergers, acquisitions, divestitures, and other strategic transactions, including “going private” and other related party transactions. He has been involved in more than 350 M&A transactions, advising companies, boards, and special committees, as well as investment banks, in both negotiated and contested transactions. Mr. O’Bryan has worked extensive...

Richard M. Heimann is one of the nation’s foremost trial attorneys and skilled negotiators, with unparalleled experience in complex securities and investor fraud, antitrust and intellectual property, consumer protection, and personal injury and mass tort cases. Richard led Lieff Cabraser’s work in the Wells Fargo Shareholder Derivative Litigation and was appointed Co-Lead Plaintiffs’ Counsel in the case. In April 2020, the Court granted final approval to a settlement includi...