Washington State

Office of the Attorney General

Attorney General

Nick Brown

Antitrust/Unfair Trade Practices

The Office of the Attorney General's Antitrust Division is responsible for enforcing Federal and Washington State Antitrust Laws. This includes antitrust provisions of Washington's Unfair Business Practices-Consumer Protection Act. The division also brings actions in federal court under Sections One and Two of the Sherman Act. The Antitrust Division investigates complaints about potential anti-competitive activity.

Our office looks for:

  • Price-fixing and other forms of collusion. Price-fixing includes an explicit agreement among competitors to raise, fix, or otherwise maintain the price at which their goods or services are sold to the detriment of either the competitive marketplace or consumers.
  • Business mergers and monopolistic practices that would result in reduced competition and harm to consumers.

For a more in-depth description of antitrust laws, read our guide.

For AGO news releases related to antitrust, visit our News Release page. 

In this page you will find resources for the general public, as well as Government Procurement Representatives. You can file an Antitrust complaint or a Healthcare Transaction Notice, and review our latest cases and important information regarding gasoline prices and the labor market in Washington.

If you have any information that you think we should know about and your browser supports forms, you can file a complaint online here. If your browser does not support forms, you may either email us or print out the form and mail it to us at:

Office of the Attorney General
Antitrust Division
800 Fifth Avenue, Suite 2000
Seattle, WA 98104-3188
Telephone: 206-587-5510
 

Please include your address and telephone number so we may contact you for additional information. The Antitrust Division only processes complaints that involve either Washington state residents or businesses located in Washington state.

Additionally, please be aware that your complaint and any related documents that you submit will become "public records."  Under state law, public records are subject to public records disclosure requests and may therefore be seen by other people.  Please see the Open Government portion of the Attorney General website.

Antitrust News Releases

As Feds pull back on corporate oversight state AGs warn of enforcement gaps

Attorney General Nick Brown and counterparts from other states today underscored the critical antitrust enforcement work state attorneys general have been doing as the federal government has pulled back on corporate oversight. 

AG Brown, bipartisan coalition win landmark verdict against Live Nation

Attorney General Nick Brown and a coalition of 32 other states and the District of Columbia have won a landmark verdict in an antitrust case against Live Nation for illegally monopolizing the live entertainment industry, driving up prices for consumers and harming performers and venues. 

AG Brown vows to continue case against Live Nation for illegally monopolizing live entertainment industry

Attorney General Nick Brown released the following multistate statement regarding the ongoing antitrust case against Live Nation, which owns Ticketmaster, for illegally monopolizing the live entertainment industry and concert ticketing services:

AG’s office provides instructions for Washingtonians eligible for payments from $700 million Google settlement

Attorney General Nick Brown announced that new instructions are available to help eligible consumers receive payment from a $700 million settlement the AG’s office and a coalition of 52 other attorneys general reached with Google in 2023. 

Washington and four other states file housing-related antitrust violation lawsuit

According to allegations in a lawsuit filed today by Washington and four other states, Zillow and Redfin violated antitrust laws when they struck a deal earlier this year that cements Zillow’s dominance in the market for online rental ads.

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Antitrust