Who Owns The Trade Desk?

Jeff Green and Dave Pickles founded the company in November 2009 in Ventura, California, after selling their earlier ad network AdECN to Microsoft. Their insight was that ad buyers, not publishers, would want their own technology platform to manage the exploding programmatic marketplace.

The early product was a self-service demand-side platform: one interface where agencies and advertisers could bid on display, video, mobile, and later audio and connected TV inventory across thousands of publishers. It grew steadily through the 2010s as programmatic share of ad spending climbed.

The Trade Desk went public on NASDAQ in September 2016 at $18 per share. The stock became one of the market's great adtech performers, at one point valuing the company above $40 billion, driven by connected TV growth and the pitch that the "open internet" needed an independent alternative to Google and Amazon.

Product milestones included the Koa AI engine, the Unified ID 2.0 identity standard, the Solimar and later Kokai platform rebuilds, and OpenPath direct publisher connections. The company acquired ad quality startup Sincera in January 2025.

Trouble arrived in 2025 and 2026. Growth slowed sharply as Amazon expanded its DSP, brands shifted budgets toward retail media, and the Kokai migration frustrated some customers. The stock lost most of its market value, and in the third quarter of 2026 the company cut 15% of its workforce, took restructuring charges, and reported its first year-over-year revenue decline as a public company, $736 million, down 0.5%.