Google’s antitrust law is the latest in a series of battles with big tech companies.

Google illegally used its search dominance to monopolize online searches and thereby limit competition, a federal court ruled Aug. 5. The decision could be followed by others as regulators seek to limit the reach of big tech companies.

Dozens of states have joined federal antitrust lawsuits against the “Magnificent Seven” companies: Google, Amazon, Apple and Meta, which owns Facebook.

Google, along with its parent company Alphabet, is being sued for its online advertising practices. The company is appealing the search engine’s Aug. 5 antitrust ruling.

Find out more: How Google’s ruling could affect your web searches.

While two of the cases were filed by the U.S. Department of Justice and the other two by the Federal Trade Commission, individual states joined the lawsuits.

USA TODAY reviewed pending cases against tech companies to determine which states have joined the federal lawsuits. Here’s what we found.

Amazon v. FTC and 17 States

Who filed the lawsuit: Federal Trade Commission, 17 states.
When: September 26, 2023
Why: The lawsuit alleges that Amazon uses unfair methods to exclude competitors in online commerce. The company’s actions “allow it to prevent rivals and sellers from driving down prices, lowering quality for shoppers, inflating sellers’ prices, stifling innovation, and preventing rivals from competing fairly with Amazon,” the lawsuit says.
Alleged violation: Section 2 of the Sherman Act.
Amazon’s response: The company says these claims are false.
Where: United States District Court for the Western District of Washington.
Pages: 172
Case status: A trial date has been set for October 2026.

Apple vs. DOJ, 19 states

Who filed the lawsuit: Department of Justice, 19 states and the District of Columbia.
When: March 21, 2024
Why: The lawsuit says Apple has monopolized the smartphone market by making it difficult for consumers to “switch between smartphones, stifling innovation, and imposing extraordinary costs on developers and businesses.”
Alleged violation: Section 2 of the Sherman Act.
Apple’s response: The company denied the accusations and requested that the lawsuit be dismissed.
Where: U.S. District Court of New Jersey
Pages: 88
Case Status: A hearing date has not yet been set.

Meta v. Department of Justice, 46 States, DC, Guam

Who filed the lawsuit: Federal Trade Commission, 46 states, District of Columbia and Guam.
When: December 9, 2020 (First Filing); August 19, 2021 (Second Filing); September 8, 2021 (Corrected Filing)
Why: The FTC said Facebook “illegally maintains its monopoly on the use of social media through years of anticompetitive practices,” including buying Instagram and WhatsApp to monopolize social media platforms.
Meta’s reply: The company denied the allegations and moved for summary judgment dismissing the lawsuit.
Where: United States District Court, District of Columbia
Alleged violation: Section 2 of the Sherman Act.
Pages: 81
Case status: A hearing date has not yet been set.

Google vs. DOJ, 8 states

Who filed the lawsuit: Department of Justice and eight states.
When: January 24, 2023
Why: The civil lawsuit accuses Google of taking over competitors, forcing the use of Google tools and otherwise acting to limit competition in the online advertising market.
Alleged violation: Sections 1 and 2 of the Sherman Act.
Google Answer: The company argued for a no-trial victory, saying antitrust laws don’t prevent companies from refusing to do business with rivals. It said regulators haven’t precisely defined the ad tech market. Google’s motion to dismiss was denied.
What court: United States District Court for the Eastern District of Virginia
Case status: The hearing is scheduled for September 2024.

Source: USA TODAY Network, reporting and research; Reuters; Federal Trade Commission; Department of Justice