Hans Erik Ingemar Bergenheim

PTKs Educational Foundation is a Swedish company that negotiates and provides courses and activities related to negotiation and agreement tools for PTK's member association and party company. The non-profit company is based in Stockholm, Sweden. The company also funds insurance information through PTK and the agreed PTK training foundation. PTK is controlled by PTK's board of directors, negotiating manager, and statutes.

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.

Pensiono Life AB engages in the provision of pension comparison services. It collects all the needed information and offers assistance to its customers. The company was founded by Erik Mattias Fellenius and Hans Nicklas Hellberg in 2011 and is headquartered in Västerås, Sweden.

Sigmastocks AB provides stock portfolio management. It helps customer for re-investing, long-term considerations, challenges, and concerns throughout the entire investment process. The firm offers sigma stocks investment tool to help customers create an index portfolio, and choose to sort up stable and long term shares through research and mathematics. The company was founded by Carl Lindberg, Mai Thai and Nanna Stranne in 2014 and is headquartered in Goteborg, Sweden.

Acreto Holding AB is a Swedish company that engages in the wholesale distribution of industrial machinery and equipment. The private company is based in Hovås, Sweden.

Jss Stålteknik AB is a private company based in Surte, Sweden that specializes in manufacturing metal frames and parts.