Diána Annmária Várkonyi

Slovak Telekom, a.s. provides telecommunication services to residential and corporate clients in Slovakia. It offers a range of services, including voice and data services through landline and mobile telecommunication networks, Internet connectivity, digital TV services, MMS messaging services, and roaming services. Slovak Telekom was founded on April 1, 1999 and is headquartered in Bratislava, Slovakia.

A1 Bulgaria EAD provides wireless telephone services. It offers leased lines, fixed voice and mobile communications services. The firm also provides laptops, smart phones, USB modems and broadband services. The company provides WAP, GPS, GPRS, EDGE, UMTS, HSDPA and HSUPA add-on services to its clients. MobilTel was founded in March 1994 and is headquartered in Sofia, Bulgaria.

Part of Fiserv, Inc., First Data Slovakia SRO is a company that processes card payment transactions. The private company is based in Bratislava, Slovakia.

T-Mobile Czech Republic a.s. provides telecommunications services. The company offers mobile telecommunication services, internet, television, mobile phones, tablets, laptops and modems. The company was founded on February 15, 1996 and is headquartered in Prague, Czech Republic.

Vodafone Czech Republic a.s. provides mobile communication services. It provides mobile calling and internet services and sells phones, tablets, modems and related accessories. The company was founded on August 13, 1999 and is headquartered in Prague, Czech Republic.

Develco Pharma Schweiz AG develops and manufactures pharmaceutical products. It also offers consulting services to the pharmaceutical industry in the areas of development, sourcing, project management, analytical development, clinical development, registration, and quality assurance of drugs and health care products. The company was founded by Mathias Scheer on October 11, 2006 and is headquartered in Pratteln, Switzerland.

Familienheim Schwarzwald Baar Heuberg Eg is a building cooperative that has been providing affordable and modern rental apartments, managing and renting modern residential complexes and commercial buildings, creating high-quality home ownership, and performing as a fair real estate agent for over 70 years. The private company is based in Villingen-Schwenningen, Germany and offers reliable service to its well over 4,000 members and tenants in the region. The German company believes that a home is more than just a roof over your head, it is a retreat, memory smithy, and adventure playground. As a cooperative, they offer many advantages to their customers.

T-Mobile Polska SA engages in the operation of mobile phone networks. It also offers telephones, routers, modems, tablets, and computers. The company provides caller identification, hotspot, high definition voice and Internet services. T-Mobile Polska was founded in 1995 and is headquartered in Warsaw, Poland.

one.Vip doo provides mobile communications and internet connection services. The company was founded in 2015 and is headquartered in Skopje, Macedonia.

Part of Deutsche Telekom AG, Magenta Telekom Infra GmbH is a telecommunications company based in Vienna, Austria. The Austrian company offers a range of services including internet, television, mobile network, and mobile devices. Magenta Telekom Infra also provides Magenta Youth Tariffs with unlimited minutes and SMS, and 25 or 40 GB of data. Customers can also purchase an iPad Pro with an M2 chip, Liquid Retina Display, and an ultrawide-angle camera with a 12 MP sensor. Rodrigo Francisco Diehl has been the CEO of the private company since 2022.