Top 88 SaaS Companies in Warsaw, Poland, May 2026

Warsaw, Poland

RTB House is a global marketing technology company that provides retargeting and programmatic advertising solutions for online businesses. The company was founded in 2012 and is headquartered in Warsaw, Poland, with offices in more than 30 countries. RTB House's proprietary technology uses deep learning algorithms to analyze user behavior and predict their purchasing intent, enabling businesses to deliver personalized and relevant ads to potential customers. The company's solutions are available for desktop and mobile devices, and its customers include e-commerce companies, travel companies, and other online businesses across a variety of industries. With a focus on innovation and data-driven solutions, RTB House is helping businesses reach their target audiences more effectively and drive better results from their digital advertising efforts.

Warsaw, Mazowieckie, Poland

The mission of ASEE Group, member of Asseco, is to build a trustworthy and profitable global IT company providing our customers with high-quality software and services. With more than 3.400 dedicated employees in the region, the Group, which includes ASEE and Payten, operates in 23 countries and is actively selling on other markets, covering the market size of 606 million people and 13 languages. Apart from being the top player for banking in SEE, the Group provides ICT solutions for various industry verticals, including the financial sector, payment sector, public administration and telecoms. ASEE, part of ASEE Group, has more than 1300 employees in the region and operates in 10 countries. As a one-stop shop for banking, it provides a broad portfolio of products for banking across 8 monetary systems, as well as a range of solutions for telco, utilities and public sector. Payten, a new brand deriving from the strongly performing ASEE Payment Business Unit, offers complete payment industry solutions for financial and non-financial institutions supporting card and cardless transactions. The company is present in 18 countries and employs more than 1500 people. We focus on value added to our Clients in …Banking – 340+ banks in client network …Payments – 1 B eCommerce transactions processed in a year …Dedicates Solutions – close partnership with world-leading vendors …Outsourcing – maximizing the simplicity, efficiency and agility of organizations’ operations Asseco South Eastern Europe and Payten are part of Asseco Group, which is the sixth software company in Europe.