The companies argued Google is abusing its market power and is illegally stifling competition for smartphone services.
“Google is using its Android mobile operating system as a ‘Trojan Horse’ to deceive partners, monopolize the mobile marketplace, and control consumer data,” Thomas Vinje, a FairSearch attorney, said in a statement.
“We are asking the Commission to move quickly and decisively to protect competition and innovation in this critical market. Failure to act will only embolden Google to repeat its desktop abuses of dominance as consumers increasingly turn to a mobile platform dominated by Google’s Android operating system,” he added.
FairSearch waged a campaign in the United States last year to get the Federal Trade Commission to go after Google for allegedly manipulating its search results to favor its own services. After a lengthy investigation, the FTC decided to take no action on the search bias charges.
The EU conducted its own investigation and has been negotiating with Google over a series of concerns about anti-competitive behavior.
In a statement, Google said only that it continues to "work cooperatively with the European Commission."