Borgestad ASA engages in property investment and management, production and distribution of refractory products, and financial investments. It operates through the following segments: Property, Refractory Materials, and Other. The Property segment includes investment properties under development and completed investment properties for lease and sale. The Refractory Materials segment develops, manufactures, and supplies refractory products. The Other segment consists primarily of the activities of the company Borgestad Business Partner AS, which performs business operations for Borgestad and its external customers. The company was founded by Gunnar Knudsen on July 11, 1904 and is headquartered in Skien, Norway.