| Registered office: | Marburg |
| HRB: | District Court of Marburg under HRB 4992 |
| Board of Directors: | Uwe Knoke, Christoph Hellrung |
| Sector: | Telecommunication |
| Ownership structure: | 100% 3U HOLDING AG |
| In the Group since: | 2006 through new formation |
ITC – Information and Telecommunications Technology Segment
| 3U TELECOM GmbH Deutschland | |
|---|---|
| Registered office: | Marburg |
| HRB: | District Court of Marburg under HRB 5330 |
| Board of Directors: | Uwe Knoke, Christoph Hellrung |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the group since: | 2007 via spin-off and re-establishment |
3U TELECOM GmbH stands for integrated telecommunications and data centre services in Germany. The company has its own network infrastructure and can therefore address the different needs of its customers. A simple, transparent and fair price policy underpins its corporate strategy. Attractive products aligned to market requirements and an efficient corporate organisation are the prerequisites for prevailing in a competitive environment and operating at a profit. The foundations for this consist of the network’s cutting-edge high-performance infrastructure, above-average availability and superior service. 3U TELECOM GmbH is known by the network operator code 01078.
Further information is available at 3utelecom.deuuu.de01078telecom.de
| cs communication systems GmbH | |
|---|---|
| Registered office: | Pleidelsheim |
| HRB: | District Court of Stuttgart under HRB 203567 |
| Board of Directors: | Uwe Knoke, Jörg Dießner, Rainer Thum |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the group since: | 2023 through acquisition |
cs communication systems GmbH is a medium-sized system house for communication and data technology with headquarters in Pleidelsheim near Stuttgart and branches in Leipzig and Nuremberg. As a provider of high-quality products in corporate communication, the company has firmly established itself on the market under the “citrus” brand since its founding year in 1990 and continuously cooperates with world market leaders. Above all, public administrations and medium-sized companies benefit from the innovative citrus products in the area of (cloud) telephone systems, unified communication security and WLAN infrastructure. The solutions are always adapted to the individual needs of the respective customer. Particular emphasis is placed on personal customer support, short response times and a fair price structure.
Further information is available at citrus.tel
| cs network GmbH telecommunication services | |
|---|---|
| Registered office: | Pleidelsheim |
| HRB: | District Court of Stuttgart under HRB 205157 |
| Board of Directors: | Uwe Knoke, Jörg Dießner |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the group since: | 2023 through acquisition |
cs network GmbH is a specialist in in-house splicing and measurement technology for fibre optics and places particular emphasis on data security, range and eavesdropping security. The company is an expert in the planning and new installation of fibre optic technology within buildings, for example from the house transfer point to the network switch or workstation. In addition, fast-track fibre optic repair is offered. With their own equipment, they carry out both time-of-flight measurements and attenuation measurements.
Further information is available at citrus.tel
010 017 Telecom GmbH is a telecommunications company which was newly founded in 2006. The network operator for voice telephony with a registration-free dial-around at favourable prices via network operator code 010 017 has been on the market since May 2006.
Further information is available at 010017telecom.de
| 3U TELECOM GmbH Österreich | |
|---|---|
| Registered office: | Vienna |
| Registered: | Commercial Court Vienna under FN202682m |
| Board of Directors: | Uwe Knoke, Christoph Hellrung |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the Group since: | 2000 through new formation |
3U TELECOM GmbH has been operating on the market as a telephone company based in Austria since 30 November 2000. 3U TELECOM offers a nationwide product line for telephony of high quality and good capacity. Under economy Preselection code 1024, 3U offers long-distance calls, international calls and calls into the mobile networks via the easy dial-around method as well as via the preselection method at very reasonable prices.
Further information is available at www.3utelecom.at
| Discount Telecom S&V GmbH | |
|---|---|
| Registered office: | Marburg |
| HRB: | District Court of Marburg under HRB 5039 |
| Board of Directors: | Uwe Knoke, Christoph Hellrung |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the Group since: | 2006 through new formation |
Discount Telecom S&V GmbH is a telecommunications company established in November 2006. The company’s core activity lies in the marketing of dial-around network operator code 01017. Attractive prices allow the customer to phone to all destinations around the world “simply refreshingly cheap”.
Further information is available at discount-telecom.de
| Exacor GmbH | |
|---|---|
| Registered office: | Marburg |
| HRB: | District Court of Marburg under HRB 5861 |
| Board of Directors: | Uwe Knoke, Christoph Hellrung |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the Group since: | March 2011 through new formation |
Exacor GmbH is a telecommunications provider with operations based on a cutting-edge, high-performance network infrastructure in niche markets in the area of fixed telephony. Activities focus on the provision of value-added telephone services of all kinds.
| fon4U Telecom GmbH | |
|---|---|
| Registered office: | Marburg |
| HRB: | District Court of Marburg under HRB 4674 |
| Board of Directors: | Uwe Knoke, Christoph Hellrung |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the Group since: | 2004 through new formation |
Fon4U Telecom GmbH was established as a voice telephony provider in 2004 and is a wholly owned subsidiary of 3U HOLDING AG. fon4U offers registration-free dial-around services via network operator code 01053.
Further information is available at fon4u.de
| LineCall Telecom GmbH | |
|---|---|
| Registered office: | Marburg |
| HRB: | District Court of Marburg under HRB 4676 |
| Board of Directors: | Uwe Knoke, Christoph Hellrung |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the Group since: | 2002 through new formation |
LineCall Telecom GmbH has been on the market as a telephone company for preselection marketing to private and business customers in Germany since the beginning of 2002. Ever since early 2008, LineCall Telecom has been operating successfully on the dial-around market through the start of network provider code 01067.
Further information is available at linecall.de01067.net
| OneTel Telecommunication GmbH | |
|---|---|
| Registered office: | Marburg |
| HRB: | District Court of Marburg under HRB 4985 |
| Board of Directors: | Uwe Knoke, Christoph Hellrung |
| Sector: | Telecommunications |
| Ownership structure: | 100% 3U HOLDING AG |
| In the Group since: | 2003 through acquisition |
OneTel Telecommunication GmbH is an established telecommunications company which has generated impetus in the market as a network provider for voice telephony since 1999. At that time the company formed part of the Australian OneTel Corp. in Sydney, Australia. The new OneTel Telecommunication GmbH adopted the brand name, which is known worldwide, and took over the existing business and private customers, as well as the established network operator code 01086, which is well positioned on the dial-aroun market.
Further information is available at onetel.de
| RISIMA Consulting GmbH | |
|---|---|
| Registered office: | Marburg |
| HRB: | District Court of Marburg under HRB 5681 |
| Board of Ddirectors: | Christoph Hellrung, Uwe Knoke |
| Sector: | Consulting |
| Ownership structure: | 100% 3U HOLDING AG |
| In the Group since: | 2010 via spin-off |
RISIMA Consulting GmbH is a management consultancy company with a consulting portfolio based on innovative capability maturity models in the areas of corporate governance and information security management. Implementation experience from 3U HOLDING AG is taken into account. RISIMA Consulting GmbH has a proven track record in offering efficient and actual solutions for small and medium-sized businesses.
Further information is available at risima.de