Grant Davis-Denny

Munger, Tolles & Olson LLP

Grant A. Davis-Denny is a litigation partner at Munger, Tolles & Olson whose practice focuses on taking complex matters to trial and counseling clients on rapidly changing areas of law.

Mr. Davis-Denny’s trial experience includes some of the country’s most complex cases, such as the Deepwater Horizon litigation following the 2010 oil spill in the Gulf of Mexico as well as a three-month antitrust trial involving billions of dollars in claimed damages.

Mr. Davis-Denny also counsels companies in the areas of data security, privacy and antitrust. His data security and privacy practice includes proactive compliance advice, incident response and litigation. Mr. Davis-Denny holds a CIPP/US certification from the International Association of Privacy Professionals.

In the area of antitrust, Mr. Davis-Denny helps companies design effective compliance programs, conduct internal investigations and litigate claims of anticompetitive conduct.

Key Representations:

  • Antitrust
    • A technology firm in conducting internal investigations into alleged anti-competitive conduct.
    • A technology company in connection with a three-month jury trial involving multi-billion dollar antitrust claims against the world’s largest computer memory manufacturers.
    • A computer hardware company in providing counsel on improvements to its antitrust compliance program.
    • An energy company in providing counsel regarding the antitrust implications of a joint venture.
  • Data Security and Privacy
    • Representing companies in responding to data breach and ransom demand incidents involving the theft of sensitive customer information, including advising on data breach notification obligations.
    • Counseling companies on a variety of proactive data security issues, including cyber-insurance, vendor management, and data minimization strategies.
    • Obtaining dismissal of a claim brought under California’s Confidentiality of Medical Information Act relating to the theft of computers containing personal health information.
  • Environmental and Energy
    • Transocean, a drilling company, in litigation arising from the BP oil spill in the Gulf of Mexico. A pipeline company in connection with a criminal trial and civil litigation arising out of an oil release.
    • An oil and gas production company in defending against claims that the company had breached its duty to perform as a prudent operator under a unit operating agreement.
    • A transportation company in successfully resolving government claims regarding an accidental release of diesel into a California river.
  • Intellectual Property
    • Technology companies in a patent infringement lawsuit related to web-enabled database management systems.
    • A best-selling author and movie producer in obtaining a favorable jury verdict in a $100 million copyright case in a Chicago federal trial.
  • Professional Liability
    • A law firm and two of its attorneys in a legal malpractice arbitration that resulted in an award for his clients from the arbitrator and the dismissal of the plaintiff’s claims.
  • Elections, First Amendment and Administrative Law
    • Advising companies on policies for complying with federal, state, and local campaign finance, procurement, and gift laws.
    • Filing amicus curiae briefs on behalf of members of Congress, Common Cause and scholars in the U.S. Supreme Court.
    • Obtaining a temporary restraining order against the California Secretary of State in litigation over ballot placement of a statewide initiative.
    • Securing a permanent injunction against a California statewide agency for violating the Administrative Procedures Act, and successfully defending that injunction in the California Court of Appeal.

Mr. Davis-Denny has served as a deputy city attorney for the Los Angeles city attorney’s office and tried three criminal cases to verdict. Mr. Davis-Denny is a member of the board of directors of the Western Center on Law and Poverty and the board of directors of the Los Angeles Metropolitan Debate League.

He is also a member and former chair of the board of directors of California Common Cause and a former member of the Los Angeles County Bar Association’s Judicial Election Evaluation Committee. At Munger, Tolles & Olson, he is the co-chair of the firm’s Information Technology committee.

Mr. Davis-Denny graduated from UCLA School of Law in 2003 where he was elected to the Order of the Coif, was a member of the UCLA Law Review, and was a member of the Program in Public Interest Law and Policy. Prior to attending law school, Mr. Davis-Denny worked for elected officials Kathleen Sebelius and Tom Torlakson.


  • UCLA School of Law (J.D., 2003)
    • Order of the Coif

Bar Admissions : California


Rate : $$$

What types of cases Attorney Grant Davis-Denny & Munger, Tolles & Olson LLP can handle?
Munger, Tolles & Olson LLP can handle cases related to laws concerning Litigation, Privacy. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Munger, Tolles & Olson LLP located?
Munger, Tolles & Olson LLP is located at Two California Plaza, 350 Grand Lower #50th+floor, Los Angeles, CA 90071, USA. You can reach out to Munger, Tolles & Olson LLP using their phone line (213) 683-9225. You can also check their website or email them at [email protected].
How much would it cost to hire Munger, Tolles & Olson LLP?
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Munger, Tolles & Olson LLP
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