According to sources familiar with the case, the US Justice Department is preparing to sue Alphabet Inc.’s Google as soon as Tuesday over the search giant’s dominance in the digital advertising industry.
The Justice Department did not reply quickly to a request for comment. The complaint will be the Justice Department’s second monopoly action against the corporation, which controls most of the technology used to buy, sell, and deliver online advertising in the $278.6 billion US digital-ad industry.
State attorneys general have launched three separate lawsuits against Google, arguing that it violates antitrust rules by dominating the markets for internet search, advertising technology, and apps on the Android mobile platform.
Other key participants in the ad tech business, such as Amazon.com Inc., Meta Platforms Inc., and Microsoft Corp., have been named competitors in court papers and congressional testimony.
Instead, the DOJ, led by then-Attorney General William Barr, sued Google for its search business, saying that the corporation utilized exclusive distribution relationships with cellphone carriers and phone manufacturers to keep competitors at bay.