Top 21 Supply Side Platforms (SSP) SaaS Companies in May 2026

As of May 2026, there are 21 SaaS companies in Supply Side Platforms (SSP). They have combined revenues of $195.3M and employ 1.6K people. They have raised $30.2M and serve 3K customers combined.

A Supply-Side Platform (SSP) is a technology framework that enables digital publishers to manage, sell, and optimize their advertising inventory programmatically. By connecting to various demand sources, SSPs facilitate real-time auctions for ad space, ensuring that publishers can maximize their advertising revenue through efficient inventory management. Typically, SSPs provide features including inventory forecasting, performance analytics, and integration with other ad technology solutions. They are primarily used by digital publishers and media owners looking to leverage their ad spaces more effectively. Key buyers of SSPs often include marketing and advertising professionals, ad operations teams, and IT specialists who need to ensure seamless digital strategy execution.