Olli Sirkka

DNA Plc operates as a mobile telecommunications company. It operates through two segments: Consumer and Corporate Business. The Consumer segment offers consumer's diverse telecommunication services such as communication, information, safety and entertainment, including mobile phones and mobile phone subscriptions, broadband, data security services, TV services from connections to channel packages as well fixed telephone connections. The Corporate Business segment offers companies and communities nationwide, standardized and easy-to-use communication and data network solutions, including SMS, telecommunication and voice services, comprehensive solutions as well as services to domestic and international tele operators. The company was founded on March 21, 1985 and is headquartered in Helsinki, Finland.

Part of Telefonaktiebolaget LM Ericsson, L M Ericsson Oy Ab is a Finnish company that manufactures and distributes cell phones. The company is based in Espoo, Finland.

Helen Oy engages in the production and sales of electricity. It also provides district heating and cooling, as well as energy transmission and distribution services. The company was founded in 1909 and is headquartered in Helsinki, Finland.