RTB House

Leading independent deep learning-powered retargeting platform operating globally across 70+ countries

RTB House is a global advertising technology company founded in 2012 and headquartered in Warsaw, Poland. The company is best known for pioneering the use of deep learning algorithms — rather than traditional machine learning — in real-time bidding (RTB) retargeting campaigns. This technological differentiation allows RTB House to deliver highly personalized ads that adapt dynamically to user behavior, resulting in superior campaign performance for e-commerce and retail advertisers worldwide. The company operates its own proprietary ad-buying infrastructure and serves clients across more than 70 countries, working with major brands in fashion, travel, automotive, finance, and e-commerce verticals. RTB House offers both performance-focused retargeting solutions and upper-funnel branding products, including Connected TV (CTV) and video advertising capabilities. Its platform is built entirely in-house, giving it full control over the technology stack and enabling rapid iteration on its deep learning models. RTB House has grown significantly since its founding, employing over 1,000 people globally and maintaining regional offices across Europe, the Americas, Asia-Pacific, and the Middle East. The company is privately held and has positioned itself as a premium alternative to walled garden retargeting solutions, emphasizing transparency, brand safety, and measurable ROI. It is widely regarded as one of the leading independent retargeting platforms in the global adtech ecosystem.