Ulf Peter Jonströmer

Swefour AB operates as a holding company with interest in wireless telecommunication and data connectivity services. The company was founded on November 2, 2001 and is headquartered in Stockholm, Sweden

OnePhone Holding AB provides telecommunications investment services. It provides fixed-to-mobile replacement services. The company was founded in 2008 and is headquartered in Stockholm, Sweden.

Part of BT Group Plc, BT OnePhone Ltd. is a telephony services provider. The company is based in London, UK. BT OnePhone was founded in 2012. BT OnePhone was acquired by BT Group Plc on September 28, 2021 for $132.36 million.

Ragn-Sells AB provides waste management services. It engages in the collection, sorting, transport, recovery, and treatment of residual products and hazardous waste. The company also provides waste planning, environmental impact assessments, environmental managing systems, environmental accounting, reclamation of land and related matters, and waste treatment services. It offers services to the household, municipal, and industrial organizations. The company was founded in 1966 and is headquartered in Sollentuna, Sweden

Ai & Ar Edtech AB provides artificial intelligence and blockchain services. The private company is based in Stockholm, Sweden.

Ericsson, Inc. develops and markets wireless infrastructure equipment. Its products include antennas, transmitters, switching systems and other gears used to build wireless networks. The company was incorporated in 1992 and is headquartered in Plano, TX.

DMP Microlearning AB provides services and products in training and tools for digital marketing and sales. It delivers strategies, insights, education, and coaching for clients. The company was founded by Carl Oskar Rufus Lidman on June 12, 2013 and is headquartered in Stockholm, Sweden.

IAR Systems AB provides software for the programming of embedded processor chips. The company was founded in 1983 and is headquartered in Uppsala, Sweden.

Winestyle Nordic AB is a Swedish company that wholesales beverages. The private company is based in Stockholm, Sweden.

Transmode Systems AB provides optical networking solutions. It provides optical networking solutions for transport of data, voice and video traffic, based on CWDM and DWDM (Coarse or Dense Wavelength Division Multiplexing) technology. The company was founded in 2000 and is headquartered in Stockholm, Sweden.

RAE Systems, Inc. provides intelligent gas and radiation detection systems. It offers wireless enabled solutions including personal, hand-held, transportable, and fixed instruments. The firm's products include MultiRAE, QRAE 3 and AutoRAE 2. The company was founded by Robert I. Chen and Peter C. Hsi in 1991 and is headquartered in San Jose, CA.

Part of Royal KPN NV, KPN OnePhone Holding BV is an investment holding Dutch company. The company is based in The Hague, Netherlands.

Mformation Software Technologies, Inc. provides mobile device management software solutions. It also provides a complete software solution to enable mobile operators, managed service providers (MSPs) and enterprises to remotely manage, support and secure all types of mobile devices across all network types. The company was founded by Upal K. Basu and Rakesh Kushwaha in 1999 and is headquartered in Woodbridge, NJ.

Åkerströms Björbo AB develops, produces, markets, and services products for remote control of industrial cranes, doors and mobile applications. Its radio systems are used in particular mining, paper, steel, utility, and nuclear power plants. The firm's products include Remotus, which is a radio remote control of safety critical industrial and mobile applications; Sesam, for applications such as door opening systems, opening and closing boom gates, switching on and off fans and floodlights, forest machines, and tail lifts; and Locomote, which is designed to meet specific safety needs for radio remote control of locomotives. The company was founded by Anders Åkerström in 1918 and is headquartered in Bjorbo, Sweden.

Skyhook Holding, Inc. provides wireless location solutions. It provides wireless location products, services, devices and solutions to support the wireless location needs. The firm offers services such as network and hybrid location solutions, traffic alerts, turn-by-turn directions and directory assistance to wireless carriers and enterprises. The company was founded by Louis A. Stilp in 1992 and is headquartered in Berwyn, PA.

Surfcleaner AB is a Swedish company that specializes in manufacturing oil skimmer separator hybrids for oil spill response and wastewater treatment. The private company's technology can handle both oil sheen and floating debris up to 150 mm and can be operated remotely in tunnels and hard-to-reach areas. Surfcleaner is an industrial cleantech producer that offers immediate response to oil spills in ports and harbours, removes all petrochemical water surface pollution, and treats oily wastewater and process water on site in API separators and wastewater tanks. The company complies with emission regulations and offer a unique solution for municipal wastewater treatment.

Part of AE Holdco AS, Emtunga Solutions AB is a Swedish company that specializes in delivering turn-key buildings for various purposes. Based in Gothenburg, Sweden, the company recently completed its most significant project for 2022, which is the new border control center for Göteborgs Hamn and Livsmedelsverket. The project includes testing halls with associated sampling labs, storage rooms, and storage rooms for refrigerated and frozen sampling. The building is built as modules that can be moved within the port area if necessary, providing flexibility to the owner and operator.

Polarbröd AB specializes in the production and distribution of bread. It also manufactures other bakery products. The company was founded in 1972 and is headquartered in Alvsbyn, Sweden.

EuroMaint Gruppen AB provides engineering and maintenance services for rail transport sector. It offers maintenance in traffic, mobile maintenance, overhauls, component servicing, and spare parts supply. The company was founded in 2007 and is headquartered in Solna, Sweden.

Pamica Group AB (Pamica Group) is a private equity firm founded in 2015 by Jan-Olof Svensson and Bengt Jönsson. The firm is headquartered in Halmstad, Sweden.

Part of Alisa Bank Plc, Evli Corporate Finance Ltd. is a commercial banking services provider. The company is based in Helsinki, Finland.

Nokas Security AB provides security services. It offers security, alarm and emergency, and parking services to shopping centers, hotels, offices, manufacturing facilities, and schools. Its trademarks include Bevakningstjänst and Cesab Security. The company was founded in 1985 and is headquartered in Hägersten, Sweden.

Ericsson & Lejonhird AB offers auditing services. The company is headquartered in Stockholm, Sweden.