TORONTO: Canada’s antitrust watchdog said Thursday it is suing Google over alleged anticompetitive conduct in the tech giant’s online advertising business and wants the company to sell off two of its ad tech services and pay a penalty.
The Competition Bureau said that such action is necessary because an investigation into Google found that the company “unlawfully” tied together its ad tech tools to maintain its dominant market position.
The matter is now headed for the Competition Tribunal, a quasi-judicial body that hears cases brought forward by the competition commissioner about non-compliance with the Competition Act.
The bureau is asking the tribunal to order Google to sell its publisher ad server, DoubleClick for Publishers, and its ad exchange, AdX. It estimates Google holds a market share of 90 percent in publisher ad servers, 70 percent in advertiser networks, 60 percent in demand-side platforms and 50 percent in ad exchanges.
This dominance, the bureau said, has discouraged competition from rivals, inhibited innovation, inflated advertising costs and reduced publisher revenues.
“Google has abused its dominant position in online advertising in Canada by engaging in conduct that locks market participants into using its own ad tech tools, excluding competitors, and distorting the competitive process,” Matthew Boswell, Commissioner of Competition, said in a statement.
Google, however, maintains the online advertising market is a highly competitive sector.
Dan Taylor, Google’s vice president of global ads, said in a statement that the bureau’s complaint “ignores the intense competition where ad buyers and sellers have plenty of choice.”
The statement added that Google intends to defend itself against the allegation.
US regulators want a federal judge to break up Google to prevent the company from continuing to squash competition through its dominant search engine after a court found it had maintained an abusive monopoly over the past decade.
The proposed breakup, floated in a 23-page document filed this month by the US Department of Justice, calls for sweeping punishments that would include a sale of Google’s industry-leading Chrome web browser and impose restrictions to prevent Android from favoring its own search engine.

The US Federal Trade Commission has opened a broad antitrust investigation into Microsoft, including of its software licensing and cloud computing businesses, a source familiar with the matter said on Wednesday.
The probe was approved by FTC Chair Lina Khan ahead of her likely departure in January. The election of Donald Trump as US president, and the expectation he will appoint a fellow Republican with a softer approach toward business, leaves the outcome of the investigation up in the air.
The FTC is examining allegations the software giant is potentially abusing its market power in productivity software by imposing punitive licensing terms to prevent customers from moving their data from its Azure cloud service to other competitive platforms, sources confirmed earlier this month.
The FTC is also looking at practices related to cybersecurity and artificial intelligence products, the source said on Wednesday.
Microsoft declined to comment on Wednesday.
Competitors have criticized Microsoft’s practices they say keep customers locked into its cloud offering, Azure. The FTC fielded such complaints last year as it examined the cloud computing market.
NetChoice, a lobbying group that represents online companies including Amazon and Google, which compete with Microsoft in cloud computing, criticized Microsoft’s licensing policies, and its integration of AI tools into its Office and Outlook.
“Given that Microsoft is the world’s largest software company, dominating in productivity and operating systems software, the scale and consequences of its licensing decisions are extraordinary,” the group said.
Google in September complained to the European Commission about Microsoft’s practices, saying it made customers pay a 400 percent mark-up to keep running Windows Server on rival cloud computing operators, and gave them later and more limited security updates.
The FTC has demanded a broad range of detailed information from Microsoft, Bloomberg reported earlier on Wednesday.
The agency had already claimed jurisdiction over probes into Microsoft and OpenAI over competition in artificial intelligence, and started looking into Microsoft’s $650 million deal with AI startup Inflection AI.
Microsoft has been somewhat of an exception to US antitrust regulators’ recent campaign against allegedly anticompetitive practices at Big Tech companies.
Facebook owner Meta Platforms, Apple, and Amazon.com Inc. have all been accused by the US of unlawfully maintaining monopolies.
Alphabet’s Google is facing two lawsuits, including one where a judge found it unlawfully thwarted competition among online search engines.
Microsoft CEO Satya Nadella testified at Google’s trial, saying the search giant was using exclusive deals with publishers to lock up content used to train artificial intelligence.
It is unclear whether Trump will ease up on Big Tech, whose first administration launched several Big Tech probes. JD Vance, the incoming vice president, has expressed concern about the power the companies wield over public discourse.
Still, Microsoft has benefited from Trump policies in the past.
In 2019, the Pentagon awarded it a $10 billion cloud computing contract that Amazon had widely been expected to win. Amazon later alleged that Trump exerted improper pressure on military officials to steer the contract away from its Amazon Web Services unit.