Matti Juhani Manninen

One1 Oy provides renewable energy and energy efficiency services and solutions for energy companies, municipalities, and communities, as well as developers and property owners. It offers district cooling, network, and equipment solutions, intelligent hybrid systems, heat pumps, bio boilers and plants, solar collectors and panels, as well as energy sales, maintenance, and exhaust air heat pump design and implementation services. The firm also supplies energy efficient district heating and consumer systems interface solutions. The company was founded by Jukka-Pekka Bergman, Mika Petteri Kallio, and Harri Juhani Kemppi on June 18, 2010 and is headquartered in Lahti, Finland.

Empower Oyj develops digital platforms that builds and maintains electricity and telecom networks, factories, and power plants. It offers energy, connectivity, and smart industry services. The company was founded in 1998 and is headquartered in Helsinki, Finland.

Loimua Oy generates, distributes, and sells district heating. It also sells and distributes natural gas as well as generates and wholesales electricity. The company was founded on March 29, 1995 and is headquartered in Hameenlinna, Finland.

Loiste Oy engages in the distribution and retail of electricity. It also provides district heating services. The company was founded on June 17, 2013 and is headquartered in Kajaani, Finland.