Per-Håkan Westin

Arcona AB provides designing and construction contracting services. It offers consulting services in property development in both commercial and residential and executes projects in-house. The company was founded in 1985 and is headquartered in Stockholm, Sweden.

White Intressenter AB is a Swedish company that focuses on the transition to sustainable built environments through digitalization, design, and data. The private company is based in Gothenburg, Sweden. The company believes that well-thought-out architecture is essential for the well-being of students and staff, as well as high study results. The company also believes that schools can and should play a greater role as a gathering place for knowledge, education, culture, and leisure. The company works closely with clients and operations to create sustainable overall solutions.

White Arkitekter AB is one of the leading architectural practices in Scandinavia and the third largest in Europe. The private company is based in Gothenburg, Sweden. The Swedish company specializes in sustainable architecture, urban design, landscape architecture, and interior design for current and future generations. The company's mission is to enable sustainable life through the art of architecture.

Willhem AB provides real estate development services. It owns, develops, leases, and manages housing properties. The company is headquartered in Gothenburg, Sweden.

Specialfastigheter Sverige AB operates as a real estate agents and managers. It operates in the business areas of Swedish Prison, probation service, defence, judicial system, National Board of Institutional Care and other special operations. The company was founded in 1997 and is headquartered in Linkoping, Sweden.