Saku Petri Tapio Sipola

Rautaruukki Oyj provides energy-efficient steel solutions. The company produces advanced high strength steels, quenched & tempered steels, standard strip, plate and tubular products as well as offer construction solutions. It operates through five divisions: SSAB Special Steels, SSAB Europe, SSAB Americas, Tibnor and Ruukki Construction. The company was founded in 1960 and is headquartered in Helsinki, Finland.

Trimble Solutions Oy provides software solutions for building information modeling and structural engineering. Its products include Tekla Structures, Tekla Model Sharing, Tekla Structural Designer, Tekla BIMsight, Tekla Tedds, Tekla Field3D, and Tekla Civil. The company serves the construction, engineering, and fabrication industries. Trimble Solutions was founded in 1966 and is headquartered in Espoo, Finland.

RG Design-Talotekniikka Oy produces turnkey, wood-framed houses for Finnish home-buyers. The company designs its houses in Oulunsalo in northern Finland and currently offers a wide range of designs to suit different tastes from traditional to the modern. The company was founded in 1990 and is headquartered in Oulunsalo, Finland.

Den Finland Oy engages in the construction of wood-framed prefabricated houses. The company was founded on July 21, 2010 and is headquartered in Vantaa, Finland.

Pohjolan Design-Talo Oy engages in the construction of wood-framed prefabricated houses. The company was founded by Esa Kurkela in 1989 and is headquartered in Oulunsalo, Finland.

SATO Oyj operates as a housing investment company. The firm provides a range of rental homes such as owner-occupied homes, homes for seniors, studio homes, and hotel homes. The company was founded in 1940 and is headquartered in Helsinki, Finland.

DEN Group Oy designs and produces wood-framed prefabricated houses. The company was founded on January 27, 2011 and is headquartered in Vantaa, Finland.