RTB House

RTB House, founded in 2012 in Warsaw, develops a Demand-Side Platform (DSP) based on proprietary deep learning algorithms for retargeting and programmatic advertising campaign optimisation. The company distinguishes itself from major sector players through a "private-by-design" model, favouring direct partnerships with brands over reliance on third-party advertising platforms. RTB House today operates in over 90 markets with more than 1,500 employees across 30+ offices worldwide, remaining privately held with no stock market listing or announced IPO plans for 2025-2026. 2026 brought a significant product initiative: the launch of rtb.com, a self-serve retargeting platform designed specifically for small and midsize e-commerce brands, a segment traditionally excluded from the company's more sophisticated enterprise services offered to larger clients. In parallel, RTB House published the results of its 2026 U.S. Consumer Study, titled "Before They Buy," analysing the increasingly research-heavy behaviour of American consumers before purchase. RTB House remains one of Europe's leading competitors in AI-based programmatic advertising, a market globally dominated by giants such as Criteo and the major advertising walled gardens (Google, Meta, Amazon), but where specialised players like RTB House have carved out a significant position by focusing on the quality of proprietary deep learning algorithms rather than the scale of aggregated data available to tech giants.