Olof Anders Göransson

Castanum Förvaltning AB provides real estate services. The firm also provides alteration of buildings, as well as owns and manages affiliation services and securities. The company was founded on January 3, 2007 and is headquartered in Sundsvall, Sweden.

The Swedish Construction Federation operates as a trade association for employers and private construction companies. It functions as a membership institution consisting of companies within civil engineering and construction industry. The firm focuses and promotes ethical business practices and quality in construction within the industry. The Federation was founded in 1919 and is headquartered in Stockholm, Sweden.

Picea Bygg AB offers contracting services. It provides conversion, extension, and new construction of buildings. The company was founded by Knut Bjarne Viklund and Henry Thomas Engberg in 1997 and is headquartered in Sundsvall, Sweden.