PubMatic Inc is a supply-side platform provider in the digital advertising technology market. These platforms help publishers, which supply digital ad inventory, manage their inventory, selling a high percentage of their inventory (increase the ad fill rate) and maximizing revenue per ad sold (optimize yield). The company generates revenue mainly by taking a piece of the ad sales that it enables. Buyers on the platform include intermediary buyers, such as demand-side platforms, or advertisers and ad agencies directly. Geographically, the company generates the majority of its revenue from the United States, followed by EMEA and APAC.