Provides publishers with transparent, efficient access to premium demand through a fair marketplace built on header bidding technology, maximizing yield while maintaining control over inventory.
Last updated Feb 8, 2026
Top-tier independent ad exchange, one of the largest SSPs globally
Index Exchange is a leading global advertising marketplace that connects premium media owners with advertisers through programmatic technology. Founded in 2001, the company operates one of the largest independent ad exchanges in the world, facilitating billions of ad transactions daily across display, video, mobile, and connected TV inventory. The platform is built on a transparent, server-side architecture that prioritizes publisher control and buyer access to premium inventory. Index Exchange serves as a critical infrastructure provider in the programmatic advertising ecosystem, enabling publishers to maximize their advertising revenue through header bidding technology and unified auction dynamics. The company differentiates itself through its focus on transparency, direct relationships with publishers, and commitment to a fair marketplace that benefits both supply and demand sides. With a global presence and partnerships with major publishers and demand-side platforms, Index Exchange has established itself as one of the top-tier ad exchanges alongside Google Ad Manager and other major players.
Core ad exchange platform connecting publishers with demand sources through real-time bidding
Client-side and server-side header bidding technology for unified auctions
Server-side header bidding solution reducing latency and improving page performance
Specialized marketplace for video advertising across web, mobile, and CTV
Connected TV advertising marketplace for premium streaming inventory
Tools for publishers to create and manage private marketplace deals with select buyers