What is Castellum AB?
Castellum is a Swedish property company that owns, manages, and develops commercial properties in growth cities.
Castellum is a Swedish property company that owns, manages, and develops commercial properties in growth cities. As of 31 March 2026, the property value amounted to approximately SEK 138 Bn. The company is listed on the LSE in UK, with a market capitalisation of 40.99B.