Lars Granbom

Marstrom Composite AB manufactures boats, spars, and carbon fiber products. It offers spars monohulls and multihulls. The firm also offers medical equipment, oil prospecting equipment, and camera bodies, as well as cargo panels. The company was founded by Per Arthur Wärn and Göran Marstrom in 1983 and is headquartered in Västervik, Sweden.

Part of Rosenberger Hochfrequenztechnik GmbH & Co. KG, Antenna Solutions Nordic AB is a Swedish company that provides consulting services for antenna development. The company is based in Täby, Sweden. The company was founded by Lars Granbom. Lars Granbom has been the CEO since incorporation. Antenna Solutions Nordic was acquired by CellMax Technologies AB, part of Rosenberger Hochfrequenztechnik GmbH & Co. KG from June 23, 2014 on December 09, 2011.

Raybased Holding AB is develops open wireless network for real estate automation. It services include wireless system monitors, controls and optimizes electrical functions in a building such as heating, ventilation, lighting, and security systems. The company was founded in 2011 and is headquartered in West Froelunda, Sweden.

TreFyr AB provides corporate consulting services. The private company is based in Hovas, Sweden. The Swedish company was founded by Lars Granbom and he has been the CEO since incorporation.