HighBrook and Aroundtown have secured a new lease for 4,500 m² in the office building The Stack at Jacob Bontiusplaats 9 in Amsterdam. The new tenant is the AI hub The Stack, an initiative launched by Dutch technology entrepreneurs in partnership with Techleap.
In September 2026, The Stack will open in Amsterdam’s Oostenburg district as a new centre for Artificial Intelligence, bringing together selected technology-focused start-ups, investors and corporate partners to accelerate the development of European AI innovation and strengthen Amsterdam’s position as a leading innovation hub over the long term. Among the first tenants are Ubicloud, Dawnguard and Iconic Works. With the aim of concentrating talent, expertise and entrepreneurial experience in one location while fostering collaboration across Europe’s innovation ecosystem, the AI hub is expected to expand to 12,000 m² by 2029 and host more than 200 founders.
The Stack was founded by AI entrepreneurs Lennard Zwart, Maarten Stolk and Philip Gast in collaboration with Techleap. The initiative is backed by more than €10 million in private capital and supported by organisations including IMC, ABN AMRO, ClickHouse, Deloitte, Google, Miro and Prosus, as well as the City of Amsterdam. Esther Bisschop has been appointed Founding Director.
“AI is not just another technology trend, it is becoming the foundation of every industry and every economy. It is essential to build cutting edge AI capabilities for each industry and each country to stay ahead. Techleap proudly joined forces with leading AI founders to make sure The Stack is not just a cool building in Amsterdam, but core infrastructure for Europe’s sovereign AI stack – from equipment and chips, up to the AI application layer. This integrated approach with a truly founder-centric ambition makes The Stack unique in its kind,” says Constantijn van Oranje, Techleap.
The Stack is designed as a platform for high-growth AI companies. In addition to modern workspace, the concept includes event facilities, development programs and direct access to investors, research institutions and industry partners. Over time, the location is expected to evolve into a key hub for AI innovation in the Netherlands and beyond.
Aroundtown is one of the largest real estate companies in Europe and has a diversified portfolio that includes numerous hotel properties alongside office and residential assets. Through ATechX, Aroundtown actively supports innovation and PropTech start-ups as an integral part of its corporate strategy.
DRS Makelaars was the advisor on behalf of the landlord and Flexas.com and NL real estate on behalf of tenant AI Hub The Stack.
