The ad-tech company alleges Google's practices deprived rival exchanges of trillions of impressions between 2017 and 2023.
Teads has sued Google and its parent company, Alphabet, alleging that Google's advertising practices deprived rival ad exchanges of 6.88 trillion ad impressions between 2017 and 2023.
The lawsuit was filed on August 3, 2026, in the United States District Court for the Southern District of New York. Teads is seeking financial damages and court-ordered changes to Google's advertising practices.
The case adds to the growing legal pressure on Google’s position in digital advertising technology. It follows a 2025 ruling in Virginia that found Google had engaged in unlawful anticompetitive conduct in parts of the ad-tech market.
What Teads Is Alleging
At the centre of Teads' complaint is Google's role across multiple parts of the digital advertising ecosystem.Teads alleges that Google's integration of its Google Ads platform with its AdX exchange disadvantaged competing exchanges by restricting access to advertising demand.
The company argues that this reduced the number of opportunities available to rival exchanges to compete for ad impressions.
The 6.88 trillion figure represents Teads’ estimate of the additional impressions rival exchanges could have received between 2017 and 2023 if Google Ads has bid into non-Google exchanges in the same way Google’s DV360 platform does.
That distinction matters.
The 6.88 trillion figure is an allegation contained in Teads' complaint, not a figure that a court has established. Reporting on the lawsuit also notes that the complaint does not explain the methodology behind the estimate.
Why the Number Matters
The scale of the figure points to the size of the market at the centre of the dispute.
Digital advertising exchanges compete to connect publishers with advertisers, with billions of individual ad opportunities processed through programmatic systems. Control over access to those opportunities can influence which platforms receive demand and how much publishers and intermediaries earn.
Teads argues that Google's practices gave its own advertising infrastructure an advantage over competing exchanges. The company is seeking treble damages as well as injunctive relief, although it has not publicly specified a dollar amount for the damages it wants.
The lawsuit is also significant because Teads is not the only ad-tech company challenging Google. The filing comes amid a wider series of legal disputes involving independent ad-tech companies and Google's practices in the open-web advertising market.
The Bigger Ad-Tech Fight
Google's position in advertising technology has faced sustained scrutiny because the company operates across several layers of the digital advertising supply chain.
For advertisers, agencies and publishers, the dispute is ultimately about how fairly those layers interact when advertising inventory is bought and sold.
If Google's systems favour its own exchange or restrict competing platforms' access to demand, independent exchanges argue that they are competing on an uneven playing field. Google, however, has disputed allegations that its advertising technology practices unlawfully restrict competition.
The Teads case now puts another private claim before the US courts. Its outcome could influence how competing exchanges approach Google and potentially add to pressure for changes in the way digital advertising auctions operate.
For now, the central figures remain allegations. The 6.88 trillion impressions have not been established by a court, and Teads' claims will have to be tested as the case moves through the legal process.
What is already clear is that the fight is no longer just about one ad-tech company. It is about who controls access to the infrastructure through which a significant share of digital advertising is bought and sold.
