Rauno Tapio Mattila

AQ Trafotek Oy supplies filter, reactor, and transformer solutions. It designs, develops, produces, and delivers inductive components. The firm's products are used in various industries, such as renewable energy, marine, oil and gas, mining, metal, pulp and paper, chemistry and water treatment. The company was founded August 11, 1983 and is headquartered in Turku, Finland.

Teknopower Oy develops, manufactures, and markets luminaires, lighting systems, and light emitting diode-based information systems for demanding environments. It provides lighting systems for arctic conditions, demanding vehicle solutions, hazardous environments, and security standards in public premises. The company was founded on October 31, 2011 and is headquartered in Turku, Finland.

Trussmatic Oy provides fully automated production lines for the roof truss industry. The company was founded by Rauno Tapio Mattila, Jukka Rannila and Matti Lehtipuu and is headquartered in Kempele, Finland.