The Trade Desk

The Trade Desk is a global advertising technology company and the largest independent demand-side platform (DSP) in the world, headquartered in Ventura, California and publicly traded on Nasdaq under the ticker TTD. Its cloud-based platform enables advertisers and agencies to plan, activate, optimize, and measure programmatic media campaigns across the open internet, spanning connected TV (CTV), online video, display, audio, native, mobile, and digital out-of-home (DOOH). The company positions itself as a neutral, buy-side-only partner, emphasizing transparency, control, and data-driven decision-making as a counterweight to vertically integrated platforms operated by large walled-garden competitors.

Through real-time bidding, advanced audience targeting, and cross-channel campaign management tools, The Trade Desk gives buyers a single interface to reach audiences across formats and devices while measuring performance against their objectives. For the out-of-home sector, The Trade Desk provides the programmatic demand that flows into DOOH inventory, allowing marketers to buy screens alongside their other digital channels and incorporate location-based, audience-driven strategies into omni-channel plans. The company has invested heavily in identity and measurement infrastructure, including its work on open, interoperable identity standards intended to support addressable advertising without reliance on third-party cookies, and in artificial intelligence to improve bidding and optimization.

As a foundational buy-side platform, The Trade Desk connects agency and advertiser budgets to programmatic DOOH marketplaces and supply-side partners across the wider ecosystem.