Carl Martin Svalstedt

Stena Adactum AB operates as a holding company with interest in investment services. The company was founded in 2002 and is headquartered in Gothenburg, Sweden.

Envac Centralsug AB manufactures and sells automated vacuum systems for waste collection. It installs and operates underground waste handling systems for the collection and transportation of waste from city centers, residential areas, hospitals, airports, hotels, and catering kitchens. The company also operates and maintains vacuum waste transportation systems for urban and industrial applications. Envac Centralsug is located in Stockholm, Sweden.

Gislaved Folie AB manufactures industrial foils and foil laminates for the shipping and automotive industries. The company's products are used as surfaces on dashboards and door panels. Gislaved Folie was founded in 1989 and is located in Gislaved, Sweden.

Mediatec Sweden AB provides audio-visual technology companies. It offers solutions for corporate, entertainment, and sporting events around the world. The firm customizes audio, light, video, rigging, and transportation needs for all large and small events. The company is headquartered in Kungalv, Sweden.

S-Invest Trading AB offers a range of plants and home and garden accessories, such as bouquets, arrangements, and accessories for everyday and party parties. It provides fruit trees, vegetables, hedge plants, autumn plants, herbs, roses, and summer plants. The company is headquartered in Molnlycke, Sweden.

SentoClone AB is a Swedish scientific research company developing SentoClone® - a patented method where the immune defense system is activated and strengthened to combat cancer. SentoClone is registered with the European Medicines Ageny, EMEA, as an SME (small and medium sized enterprises). SentoClone AB is a member of the IML, The Swedish Association for small and medium-sized companies active in R&D. SentoClone AB is owned by a number of venture capital firms, among them Stena Adactum AB, Sahltech i Göteborg AB and T-bolaget AB, together with founders Ola Winqvist and Magnus Thörn.

Stena Sphere engages in shipping services. Its activities are spread over several areas: ferry routes, shipping, offshore drilling, property, finance plus recycling, environmental services, and trade. The company was founded by Sten Allan Olsson on November 18, 1939 and is headquartered in Gothenburg, Sweden.

Part of Stena AB, Stena International SARL is a Luxembourger company that provides investment and shipping services. The private company is based in Luxembourg, Luxembourg.

Envac AB operates as an environmental technology company, which engages in vacuum waste collection systems. Its products include litterbins, optical sorting, and stationary vacuum, mobile vacuum, and kitchen waste systems. It also offers system care, managed operations, and survey and maintenance services. The company is headquartered in Stockholm, Sweden.

Ballingslöv AB manufactures refined wood products for kitchen, bathrooms, and storages. It offer furniture, cabinets, fittings, drawers as well as bathroom and kitchen designs. Its trademarks include B Ballingslöv 1929, DESIGN BOX Ballingslöv, DESIGN BOX, and Ballingslöv. The company was founded by Albin Svensson in 1929 and is headquartered in Ballingslöv, Sweden.

Stena Sessan Rederi AB is a Swedish company that engages in shipping services, offshore drilling, property finance, and recycling services. The private company is based in Gothenburg, Sweden. The CEO of the company is Nils Bert Åke Eriksson.

Stena Renewable AB invests in wind power and builds and manages wind farms. It owns wind turbines that produce energy corresponding to Malmö city''s consumption of household appliances. The company was founded in 2005 and is headquartered in Gothenburg, Sweden.

Stena Sessan Investment AB provides sea transportation services for both passengers and freight. The private company is based in Gothenburg, Sweden.

Stena International S.A. provides ferry passenger, shipping, and offshore drilling services. The private company is based in Luxembourg, Luxembourg.