How Index Marketplaces work

Marketplace Partners
Last Updated: February 12, 2026

Index Marketplaces is a platform that provides the opportunity for any party within the digital advertising ecosystem to use their unique relationships, assets, and pricing to develop and customize a media offer using Index's infrastructure. As a Marketplace Partner, you get a streamlined way to connect with Index's 3,000+ Media Owners, allowing you to curate media solutions that fit the needs of your client. You also get the flexibility to price your media solutions based on the value you generate for your buyers.

  1. You connect with Media Owner inventory and combine your unique assets – data, curation, optimization, etc – in your Marketplace account.
  2. Unless otherwise specified, bids from Marketplace Partners compete in the auction net of all Marketplace fees. This means incremental demand is only eligible to win in your auction if it is higher than any other net bid. For details, see Understanding Index Marketplaces transactions for Marketplace Partners.
  3. Parties to a transaction may receive unified reporting and consolidated billing, as with all transactions through Index.

Here are some of the ways you can manage your Marketplace: