Who The Trade Desk buys from and sells to
Runs a demand-side platform that agencies use to buy ads on the open internet and connected TV; no inventory of its own.
Part of Digital Advertising spending
Buys from 4
Where the chain could break
- Two agency holding companies placed 30% of 2025 gross billings, with no contracts at that level
- Publicis has told clients it will no longer recommend the platform
- Browser and OS limits on identifiers weaken targeting on the open internet
Competes with
- AmazonAMZNa cheaper DSP with its own retail and Prime Video data
- AlphabetGOOGLDisplay & Video 360
Mapped by hand from filings and company reporting, as of October 2026. It shows the relationships that matter most, not every contract: most are never disclosed, and agreements change.