Parties
The plaintiff, the eighteen named federal defendants, and the amici who filed in support (and opposition) — with direct links to every amicus brief on CourtListener.
Plaintiff
Anthropic PBC — Public benefit corporation, incorporated in Delaware, headquartered in San Francisco, CA.
Counsel
- Michael J. Mongan — Wilmer Cutler Pickering Hale and Dorr LLP. Lead trial counsel (N.D. Cal.)
- Kelly P. Dunbar — Wilmer Cutler Pickering Hale and Dorr LLP. Lead appellate counsel (D.C. Cir.)
- Joshua A. Geltzer — Wilmer Cutler Pickering Hale and Dorr LLP. Counsel of record
- Susan Hennessey — Wilmer Cutler Pickering Hale and Dorr LLP. Counsel of record
- Kevin M. Lamb — Wilmer Cutler Pickering Hale and Dorr LLP. Counsel of record
- Lauren Moxley Beatty — Wilmer Cutler Pickering Hale and Dorr LLP. Counsel of record
- Laura E. Powell — Wilmer Cutler Pickering Hale and Dorr LLP. Counsel of record
- Sonika R. Data — Wilmer Cutler Pickering Hale and Dorr LLP. Counsel of record
- Emily Barnet — Wilmer Cutler Pickering Hale and Dorr LLP. Counsel of record
Defendants
Eighteen named agencies and officials; the order names all "Defendant Agencies" plus Secretary Hegseth and the Executive Office of the President.
U.S. Department of War
Pete Hegseth (Secretary)
Federal agency
Principal defendant; issued the Hegseth Directive and Supply Chain Designation
Executive Office of the President
White House office
Named as to the Presidential Directive; not enjoined on PI for lack of specific implementing action
U.S. Department of the Treasury
Scott Bessent
Federal agency
U.S. Department of State
Federal agency
U.S. Department of Health and Human Services
Robert F. Kennedy, Jr.
Federal agency
U.S. Department of Homeland Security
Federal agency
U.S. Department of Energy
Chris Wright
Federal agency
U.S. Department of Commerce
Howard W. Lutnick
Federal agency
U.S. Department of Veterans Affairs
Douglas A. Collins
Federal agency
Social Security Administration
Frank Bisignano
Federal agency
General Services Administration
Scott Kupor
Federal agency
Nuclear Regulatory Commission
Ho K. Nieh
Independent agency
National Endowment for the Arts
Mary Anne Carter
Independent agency
National Aeronautics and Space Administration
Jared Isaacman
Federal agency
Federal Reserve Board of Governors
Jerome H. Powell
Independent agency
Federal Housing Finance Agency
Edward C. Forst
Independent agency
Securities and Exchange Commission
Paul S. Atkins
Independent agency
Office of Personnel Management
Federal agency
Counsel for the government
Trial (N.D. Cal.): U.S. Department of Justice — Civil Division, Federal Programs Branch. James W. Harlow, Eric J. Hamilton, Christian Dibblee, Kristina Wolfe.
Appellate (D.C. Cir., 9th Cir.): U.S. Department of Justice — Civil Appellate Staff. Sharon Swingle, Sean R. Janda, Brian J. Springer.
Sharon Swingle argued for the government in the D.C. Cir.
Amici
Briefs filed across the N.D. Cal. and D.C. Cir. proceedings. Each entry links directly to the relevant CourtListener docket entry where you can download the PDF; many briefs are also mirrored locally under source-docs/. Only one amicus has filed in support of the government — Joel Thayer of the America First Policy Institute, in the D.C. Cir.
Microsoft Corporation
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 10, 2026
N.D. Cal.·Mar 13, 2026
Employees of OpenAI and Google (personal capacities)
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 9, 2026
D.C. Cir.·Mar 13, 2026
D.C. Cir.·Apr 22, 2026
Former Service Secretaries and Retired Senior Military Officers
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 10, 2026
D.C. Cir.·Mar 12, 2026
D.C. Cir.·Apr 22, 2026
D.C. Cir.·Apr 27, 2026
Former Senior National Security Government Officials
For petitionerN.D. Cal. · D.C. Cir.Includes Harold Hongju Koh (Yale), pro hac counsel for the group.
D.C. Cir.·Mar 16, 2026
D.C. Cir.·Mar 17, 2026
D.C. Cir.·Apr 22, 2026
Foundation for Individual Rights and Expression (FIRE)
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 9, 2026
D.C. Cir.·Mar 12, 2026
D.C. Cir.·Apr 22, 2026
Electronic Frontier Foundation
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 9, 2026
D.C. Cir.·Mar 12, 2026
D.C. Cir.·Apr 22, 2026
Cato Institute
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 9, 2026
D.C. Cir.·Mar 12, 2026
D.C. Cir.·Apr 22, 2026
Chamber of Progress
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 9, 2026
D.C. Cir.·Mar 12, 2026
D.C. Cir.·Apr 22, 2026
First Amendment Lawyers Association
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 9, 2026
D.C. Cir.·Mar 12, 2026
D.C. Cir.·Apr 22, 2026
American Civil Liberties Union
For petitionerN.D. Cal. · D.C. Cir.D.C. Cir.·Mar 16, 2026
D.C. Cir.·Apr 22, 2026
Center for Democracy & Technology
For petitionerN.D. Cal. · D.C. Cir.D.C. Cir.·Mar 16, 2026
D.C. Cir.·Apr 22, 2026
149 Former Judges + Democracy Defenders Fund
For petitionerN.D. Cal. · D.C. Cir.D.C. Cir.·Mar 17, 2026
D.C. Cir.·Apr 22, 2026
Catholic Theologians and Ethicists
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 13, 2026
D.C. Cir.·Mar 16, 2026
D.C. Cir.·Apr 22, 2026
TechNet
For petitionerN.D. Cal. · D.C. Cir.D.C. Cir.·Mar 16, 2026
D.C. Cir.·Apr 22, 2026
Software & Information Industry Association
For petitionerN.D. Cal. · D.C. Cir.D.C. Cir.·Mar 16, 2026
D.C. Cir.·Apr 22, 2026
Computer & Communications Industry Association
For petitionerN.D. Cal. · D.C. Cir.D.C. Cir.·Mar 16, 2026
D.C. Cir.·Apr 22, 2026
Information Technology Industry Council
For petitionerN.D. Cal. · D.C. Cir.D.C. Cir.·Mar 16, 2026
D.C. Cir.·Apr 22, 2026
ACT | The App Association
For petitionerN.D. Cal. · D.C. Cir.N.D. Cal.·Mar 13, 2026
D.C. Cir.·Mar 17, 2026
D.C. Cir.·Apr 22, 2026
Freedom Economy Business Association (and values-led investors)
For petitionerN.D. Cal. · D.C. Cir.D.C. Cir.·Mar 13, 2026
D.C. Cir.·Mar 16, 2026
D.C. Cir.·Apr 22, 2026
D.C. Cir.·Apr 28, 2026
American Federation of Government Employees
For petitionerN.D. Cal.Tech Justice Law Project
For petitionerN.D. Cal.No filing matched on the docket yet.
Faith Family Technology Network
For petitionerN.D. Cal.Foundation for American Innovation et al.
For petitionerD.C. Cir.Coalition including Fifty Years, Fathom, ChinaTalk, Pangram, Institute for Progress, Dean Ball, Dwarkesh Patel, Roots of Progress, Alex Imas, Martin Chorzempa, Saif Khan, Michael Sobolik, Steve Newman, Taren Stinebrickner-Kauffman.
D.C. Cir.·Mar 12, 2026
D.C. Cir.·Apr 22, 2026
Leon Panetta + Institute for Security and Technology
For petitionerN.D. Cal. · D.C. Cir.Prof. Alan Z. Rozenshtein
For petitionerD.C. Cir.N.D. Cal.·Mar 11, 2026
D.C. Cir.·Mar 13, 2026
D.C. Cir.·Apr 22, 2026
Abolitionist Law Center
In favor of neitherN.D. Cal. · D.C. Cir.Joel Thayer (America First Policy Institute)
For respondentD.C. Cir.