Jarno Tapani Haikonen

Naava Group Oy provides biological air purification and smart greenwalls. Its products include naava one, naava one slim, naava designer, naava smart, naava smooth, naava original, and naava twin. The company was founded by Niko Jarvinen, Aki Soudunsaari, and Mika Tyrvainen in 2011 and is headquartered in Jyvaskyla, Finland.

DNA Welho Oy provides pay television services. The company was founded on September 26, 2005 and is headquartered in Helsinki, Finland.^

Oiva Isännöinti Group Oy is a private company based in Helsinki, Finland. and has subsidiaries in Finland. Oiva Isännöinti Group Oy specializes in property management services, including collecting and managing personal data related to customer companies. The Finnish company uses this data to identify customers when they interact with the company or use its electronic services. Oiva Isännöinti Group Oy's services ensure that life in residential buildings runs smoothly and happily, and its property management team helps the board of directors develop the building. The company was founded in 2021, and Jarno Tapani Haikonen has been the CEO of the company since 2021.