RTB House

Leading independent deep learning-powered retargeting platform, competing with Criteo and other DSPs with a privacy-first, cookieless-ready approach

RTB House is a global advertising technology company founded in 2012 and headquartered in Warsaw, Poland. The company specializes in retargeting and branding solutions powered by its proprietary deep learning algorithms — a distinction it claims as the first in the industry to apply deep learning (rather than traditional machine learning) to programmatic advertising at scale. Its platform helps e-commerce and retail brands re-engage users who have previously visited their websites, delivering personalized ads across display, video, and social channels to drive conversions and revenue. The company operates its own real-time bidding (RTB) infrastructure, allowing it to bid on ad inventory across major ad exchanges globally without relying on third-party DSPs. RTB House serves clients across more than 70 countries and has built a significant presence in Europe, the Americas, Asia-Pacific, and the Middle East. Its client base spans major e-commerce verticals including fashion, travel, classifieds, and marketplaces. The company has grown to over 1,000 employees and maintains regional offices across multiple continents. RTB House has positioned itself as a privacy-first adtech player, investing heavily in cookieless targeting solutions such as its Contextual AI and cohort-based targeting approaches aligned with industry shifts away from third-party cookies. This forward-looking stance, combined with its deep learning differentiation and full-stack proprietary technology, gives it a competitive edge against both large DSP platforms and specialist retargeting vendors. The company is privately held and has not disclosed external funding rounds publicly.