Olof Leo Rene Joos

TDC Sverige AB provides telecommunications solutions. The firm offers voice, data, video and network services. The company was founded in 1990 and is headquartered in Sollentuna, Sweden.

Teliasonera International Carrier AB operates as a telecommunication carrier. The firm offer services in the Nordic and Baltic countries, the emerging markets of Eurasia, including Russia and Turkey and in Spain. The company was founded in 2003 and is company is headquartered in Solna, Sweden.

StjarnaFyrkant Nordic AB offers products, services, installation and service, based on fixed, mobile and IP telephony and communication radio. The firm's products such as GPS, taximeter and alcohol interlocks are also part of StjärnaFyrkants product and service portfolio. It is nationwide, and now Sweden's fastest growing chain of communication-based telephony and IT services. The company was formed in 1996, when with the goal of creating one of the main northern-based chains of products and services in mobile telephony. The first store opened in 1997 helprofilerade in Sundsvall. In 2005 the company received a new principal owner by RPE Holding AB. Star Square run by the client to be knowledgeable friend, a reliable partner who, through their expertise, their local presence and its easy to use communication, easily and quickly can help increase efficiency.