Petri Altti Sakari Olkinuora

Part of Koja-Yhtiot Oy, Koja OY is a Finnish company that manufactures non-domestic cooling and ventilation equipment. The private company is based in Tampere, Finland.

Tamturbo Oyj develops, manufactures, and markets oil-free industrial air compressor systems. Its solutions enable cleaner, more energy-efficient, and maintenance-free compressed air production. The company was founded by Kimmo Olavi Laine and Jaakko Säiläkivi on April 16, 2010 and is headquartered in Tampere, Finland.

Koja-Yhtiot Oy manufactures reliable air-handling equipment and fans with low lifecycle costs for the construction and process fans for industry.

Hartela-Yhtiöt Oy provides civil engineering, construction, and property development services.

Renor Oy provides real estate services. The company is headquartered in Vantaa, Finland.

Tampereen Messu-ja Urheilukeskus Oy is a private company based in Tampere, Finland. The Finnish company is ultimately controlled by the City of Tampere.

European Public Real Estate Association provides interest for public real estate sectors. It specializes in investment research, listed real estate, index management, formulation of best practices recommendations, representation to the EU and regulatory bodies and networking for sector. The company was founded in October 1999 and is headquartered in Brussels, Belgium.

Zsar Oy operates as real estate agency. The company is headquartered in Helsinki, Finland.

Sähkötaso Esitystekniikka Oy provides audiovisual technology solutions for conference rooms, teaching premises, arenas, and shopping centers. Its products include audio equipment, interactive whiteboards, presentation surfaces and furniture, information systems, audio and video conferencing equipment, projectors and screens, video equipment, and sound systems. The company was founded in 1948 and is headquartered in Tampere, Finland.

7Bros Oy is an investment holding Finnish company. The private company is based in Tampere, Finland.