May 07, 2026
A Delaware federal judge has allowed Apollo.io to press ahead with most of its counterclaims against competitor ZoomInfo Technologies LLC, finding that Apollo plausibly alleged that its larger rival used monopoly power, patent litigation and negative customer messaging to suppress competition in the sales-intelligence data market.
March 17, 2025
Customer data platform company ZoomInfo has hauled its competitor Apollo.Io into Delaware federal court for allegedly infringing two of its patents, citing employee reviews on Glassdoor criticizing Apollo for copying and "cloning" rival products.