• 107

    of success

  • 10

    all over Germany

  • 105


  • 310000


WTG is a group of enterprises operating all over Germany that unites three main fields of excellence under a single roof: → IT AND COMMUNICATION, → SECURITY SYSTEMS and → CONTROL CENTRE TECHNOLOGY. With approximately 250 employees and the nationwide network of locations, we rank among the largest providers in our industry. Innovation and future-oriented investment policy, together with highly motivated employees, form the basis of the company’s success all through our more than 100 years in existence. The WTG group’s Berlin-based holding company coordinates our strategic direction into the future.


  • IT and communication


    WTG’s service portfolio in IT and communication consists of the following aspects: vendor-neutral analysis, optimisation and implementation of the customer’s own individual UC/CC strategy, set-up and operation of the necessary network infrastructures, platforms, software and related services in the areas of consulting, security, process optimisation and business intelligence. WTG works only with state-of-the-art technologies and cooperates with the most reliable leading manufacturers and partners worldwide. This gives us the capacity to meet all current market requirements, thus generating real added value for your enterprise. → IT AND COMMUNICATION

  • Security systems


    With WTG you have a systems partner at your side on which you can rely to respond to every potential security threat with the maximum expertise, professionalism and deploying only the most advanced technical components. We develop an integrated concept for your business, making sure we take all security requirements and preferences into account by conducting an individual analysis of the threats and weaknesses confronting the customer. Professional project planning and engineering work by our experts of the fields of security technology and in IT, networks and network security guarantee the seamless implementation of the planned security solution. → SECURITY SYSTEMS

  • Control centre technology


    WTG works as a specialised service provider for public authorities, emergency services and industry. We build and equip control centres with the full range of communication, information and alarm systems they need. We manage all our control centre system projects from the planning stage to handover as a fully operational key-in-door system in close collaboration with our customer. The entire project control process, and the complete planning and construction work is all carried out by one single provider. → CONTROL CENTRE TECHNOLOGY

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WTG in 3 minutes > In today’s world of business, the need for security and efficiency in running innovative ICT infrastructures is absolute. WTG responds to every technological challenge that faces us by apply­ing the most exacting quality standards to produce perfectly tailored, future-oriented communication and security solutions. Me­dium-sized businesses, large corporations and public authorities and bodies have been relying on WTG’s solutions for more than 100 years. (in German)



Avaya is a leading global provider of solutions for customer and team engagement. The company provides technologies for unified communications and collaboration, contact center and customer experience management, and networking, along with related services to large enterprises, midmarket companies, small businesses and government organizations around the world. Avaya Engagement Solutions bring people together with the right information at the right time in the right context, helping to enable a higher level of engagement between customers, teams, employees and partners to improve efficiency and quickly address critical business challenges. Designed to be highly scalable, reliable, secure and flexible, these solutions help reduce costs and simplify management while providing a platform for next-generation engagement and collaboration. Furthermore, they are available in a variety of deployment models including public, hybrid and private cloud as well as on a customer’s premises. WTG is an Avaya Enterprise VAR Diamond Partner – herewith WTG has achieved the highest level within the new Avaya Edge partner program (in effect since October 1, 2016).


Mitel is a business communication expert powering more than 2 billion connections every day, including over 33 million daily cloud connections. Offering the best path to the cloud has made Mitel the fastest-growing global cloud communication provider in the world. Mitel helps companies connect, collaborate and take care of their customers anywhere, anytime, over any device. With more than 2500 channel partners globally and with over 40 years of experience providing business communication solutions, more than 60 million users in 100 countries have entrusted Mitel with their communication needs. WTG is a Mitel Gold Partner.


Comulus is a German cloud provider specialised in the areas of voice, video, unified communication and collaborative technologies. Through its focus on innovation, security and continuous development, Comulus can provide the very best possible cloud products for enterprises of any size, providing maximum data security by using data centres based in Germany. Comulus aims to provide the highest possible quality in their products at the best possible price. This claim provides the foundation that allows them to achieve well-planned, sustainable growth and the best possible value for money. WTG is a Comulus Gold Partner.


BroadSoft is the technology innovator in cloud PBX, unified communications, team collaboration, and contact center solutions for businesses and service providers across 80 countries. As a market leader for cloud unified communications with an open, mobile and secure platform, BroadSoft is trusted by 25 of the world’s top 30 service providers by revenue. The BroadSoft Business application suite empowers users and teams to share ideas and work simply to achieve breakthrough performance. WTG has integrated the BroadSoft Business products into its cloud platform WTG CLOUD.


Unify is one of the world’s leading communications software and services firms, providing integrated communications solutions for approximately 75 percent of the Fortune Global 500. Unify solutions unify multiple networks, devices and applications into one easy-to-use platform that allows teams to engage in rich and meaningful conversations. The result is a transformation of how the enterprise communicates and collaborates that amplifies collective effort, energizes the business, and enhances business performance. Unify has a strong heritage of product reliability, innovation, open standards and security. Unify is an Atos company. WTG is a Unify Partner: Professional OpenScape 4000 / Professional OpenScape Business.


Since 1997, estos has been developing communication software in Germany. Over the years, estos has succeeded in continually presenting products in an extremely dynamic market that are used by more than one million users in companies every day. Continuous investment in research and development has made estos a technology leader in the area of Computer Telephony Integration (CTI), Unified Messaging Software (UMS), SIP, XMPP, LDAP, and WebRTC-based applications that enable uncomplicated audio/video communication. WTG is estos Expert Partner.


Enghouse Interactive is a global leader in providing solutions that deliver differentiated customer experience and maximize the value of every customer interaction. Enghouse Interactive’s comprehensive portfolio of interaction management solutions span omni-channel call centers, Computer Telephony Integration (CTI), self-service Interactive Voice Response (IVR), knowledge management, operator consoles, call recording and quality monitoring, media voice services, and outbound dialers. These solutions support any telephony environment and flexible deployment options, on premise or in the cloud. WTG is a Enghouse Gold Partner.


Hewlett Packard Enterprise

Hewlett Packard has been creating new technological opportunities for over 75 years, providing people, enterprises, public authorities and society in general with new capacities – responding to individual customer needs with novel print solutions, personal computing offerings, software, services and IT infrastructure. As of 1 November 2015, the US-based group split into two companies, one to concentrate on the PC and printer business and the other on the enterprise IT sector. The enterprise arm, which has taken over the original group’s entire IT portfolio, now operates under the name Hewlett Packard Enterprise (HPE). WTG is a HPE Business Partner.


VMware is a global leader in cloud infrastructure and business mobility. Built on the industry-leading virtualization technology, VMware’s solutions deliver a brave new model of IT that is fluid, instant and more secure. Customers can innovate faster by rapidly developing, automatically delivering and more safely consuming any application. VMware has more than 500,000 customers and 75,000 partners. WTG is a VMware Partner: Professional Solution Provider.

Esser by Honeywell

Honeywell invents and manufactures technologies that address some of the world’s most critical challenges around the global macrotrends such as energy efficiency, clean energy generation, safety and security, and globalization. Honeywell’s three businesses – Aerospace, Automation and Control Solutions, and Performance Materials and Technologies – are all built on differentiation through technology. Honeywell is uniquely positioned to blend physical products with software – for the commercial as well as residential markets – enabling a safer, more comfortable and more productive world. Within the division Honeywell Fire Safety, Esser offers a broad, future-oriented portfolio of custom-made fire protection concepts and innovative voice evacuation systems. This makes Esser one of the leading experts for safety in buildings. WTG is a FlexES Partner.

artec technologies

artec technologies AG – listed on the stock exchanges – develops and produces innovative software and systems solutions for the transmission, recording and analysis of video, audio and metadata in networks or the internet. Since the year 2000, customers have been using artec’s brands MULTIEYE® for HD Video Surveillance Solutions and XENTAURIX® for Broadcast Logging and Streaming. WTG is MULTIEYE Platin partner.


Telenot is a leading German manufacturer of electronic security technology and alarm systems. The products for the reliable protection of people, property and buildings against burglary, robbery, unauthorized entry, fire and technical risks dispose of individual and system approval by VdS, the German institution for corporate safety and security, by VSÖ, the Austrian Association of Security Companies, and by SES, the Association of Swiss installers of security systems. With this, Telenot guarantees securitized safety. Security solutions from Telenot are used in private homes, in small and medium enterprises, retail, industry and the public sector. WTG is Authorized TELENOT base and part of the largest network security under hand and seal.


ISO 9001:2015

Systematically planning, analysing and evaluating all business processes is an essential part of the toolkit used by WTG in its quality management efforts. Our management system – which conforms to DIN EN ISO 9001, committing all the company’s business units to a process of continuous improvement – makes it possible for our customers to compare agreed service levels against the services actually provided. As a company that has been certified for many years now, WTG satisfies all requirements listed in the process-related DIN EN ISO 9001:2015 standard, a norm that focuses on the customer and employee orientation of the company as well as the quality of partnership relationships with suppliers.


In order to ensure effective prevention of damage, the installation of systems in the area of fire protection and security technology must be carried out by organisations who can prove that they possess both the qualified specialist personnel with well-grounded specialised competences and the appropriate technical equipment for installation and maintenance of such systems. VdS (the official German agency for establishing standards in fire and security systems) offers an appropriate certification procedure for such installation firms. WTG Berlin is a VdS-recognised installation company for both intruder alarm and for fire alarm systems.

DIN 14675

DIN 14675 provides the rules applicable to the construction and operation of fire alarm systems, fully considering fire prevention regulations and the requirements of planning authorities. Through their possession of DIN 14675, WTG Berlin and WTG communication have achieved the certification that covers in the requirements for the planning, project design, mounting, installation, commissioning, handover and maintenance of fire alarm systems. The DIN 14675 standard was extended in 2012 to include requirements on the expertise of firms specialised in voice alarm systems. WTG Berlin is a specialist firm certified according to DIN 14675 for fire alarms and voice alarm systems.


The pre-qualification for construction companies (PQ VOB) – a test and documentation process to check their capacities independently of any particular project – stimulates competition in terms of quality between reputable high-performance businesses in the German construction sector. Public service contractors – including federal, regional and local contracting agencies, among other types of public contractor – put a particular emphasis on the value the PQ as an indicator of quality. WTG Berlin is pre-qualified for carrying out quality electrical work.

WTG – your vendor-neutral systems integrator

WTG is a synonym for the highest possible level of expertise in the fields of consulting, design, implementation and service management of complex ICT and security systems for medium-sized to larger businesses, public authorities and bodies. We use such best-practice methodologies as Prince 2 and ITIL to ensure that we are satisfying all today’s requirements for state-of-the-art life-cycle and service management of ICT and security technology platforms.

  • Commitment to our customers

    Commitment to our customers

    WTG’s commitment is to its customers, not to any individual provider. This vendor neutrality gives us the liberty to search for the very best solution currently available for our customer’s current problem. Our capacity to catering to our customers’ individual needs and preferences is a distinguishing mark of our way of doing business. We promise our customers to implement our solutions according to jointly agreed parameters: in time – in quality – in budget. WTG provides you with a trustworthy partner and consultant, and is at your service 24-hours-a-day and 365-days-a-year. Our »Best in Class« services ultimately achieve what they aim to achieve: complete customer satisfaction.

  • Commitment to quality

    Commitment to quality

    Based on our ISO 9001, VdS as well as DIN 14675 certifications and our conformity with ISO 27001 IT security management-based working methods, we can assure the highest possible standards of quality in order to meet today’s and future markets’ requirements.

  • Commitment to the environment

    Commitment to the environment

    WTG considers it to be its duty to protect the environment by using the resources it consumes with care. In addition, we also commit to working exclusively with suppliers who can certify that the production processes they use are sustainable. For us it goes without saying that all products we use must conform to the EU RoHS (Restriction of Hazardous Substances) Directive. We support the concept of »green IT«. Ultimately, the savings achieved by the use of intelligent IT systems are likely to be considerably greater than the demands on energy and resources generated by such systems. The bottom line is that the innovative IT products and applications with which we work have the effect of reducing the burden on the environment.

WTG Careers

Work at WTG

We at WTG are a steadily growing company constantly on the lookout for enthusiastic new employees and talented trainees.

Read on


Founded in Münster

Foundation in Münster, North Rhine-Westphalia

Westfälische Telefon-Gesellschaft starts operation in Münster on 1 October 1913. The company’s founding documents state that company founder Wilhelm Schütze registered the business on 6 October 1913. With activities in manufacturing and services in the telephony sector, WTG quickly establishes a large client base.

1913 – 1941
Telephone and signalling equipment

Overhead line construction, telephone and signalling equipment

From 1913 to 1941 the company’s main focus is centred on building overhead lines, laying cabling, high and low-voltage power as well as the production of telephones and serial installations for sale or rental, and the maintenance of such systems. WTG establishes its own workshop for the manufacture of the telephones from wood. Pneumatic post systems, electrical clockwork technology, fire alarms and signalling systems are also included in the company’s wide product range.

Installation of direct long-distance dialling in Münster
Expropriation during Nazi era
1945 – 1950
Reconstruction in Berlin

Reconstruction in Berlin

In 1945, immediately after the end of the war, Werner Schütze, son of the company’s founder, re-founds WTG in Berlin. As a member of the association of businesses for the reconstruction of Germany (Verband der Aufbaufirmen) WTG, now employing more than 100 people, takes on responsibility for the construction and maintenance of telephone systems in the country.

New business establishment in Münster
1950 – 1970
Patent and product campaign

WTG in-house developments are registered for patent protection

In the early 50’s, WTG introduces a number of proprietary developments to the market, including the WTG master clock, the WTG door opener or WTG’s “Lumatic” automatic dimmer. WTG’s pioneering inventiveness is demonstrated through the development of a precursor to today’s mobile phone.

Public mobile overland radio

Keeping an eye on the trends

In 1952, after intensive international patent research on radio telephones, WTG develops a precursor to today’s mobile phone – a system at the time called a “public mobile overland radio service”. Target customers for the new radio telephone include the police and fire services as well as the shipping and mining sectors.

Development of Berlin’s first taxi radio system
First bus advertisement in Münster

WTG marketing in the 1960s

Werner Schütze proudly presents WTG’s first bus advertisement – public transport in Münster under the WTG name.

1970 – 1990
Telecommunication and security technology

Telephone, telex, datex, fax, networks, intruder and fire alarm systems

In the meantime, WTG’s services mainly involve telecommunication and networking technologies (telephone, telex, datex, fax), as well as the entire gamut of security offerings (intruder and fire alarms, signalling systems, etc.). WTG celebrates its 75th anniversary in 1988.

75 Years of WTG

75 Years of WTG

WTG celebrates its 75th anniversary in Münster, the town in which it was founded. Employees from Münster and Berlin celebrate in the traditional way with the “Kiepenkerl” – symbol of the city of Münster.

Management goes into its third generation

Company management remains within the family

Dr. Rudolf Schütze takes over management of the company in 1989, followed by his son, Gerrit Schütze in 1990. Gerrit, grandson of the company’s founder, leads the WTG into the next century.

since 1990
WTG’s 3 business segments & new locations

Expansion of WTG’s three core competencies and addition of new locations

WTG’s management pushes its core competencies into continuous expansion mode from 1990 on: IT & communication solutions, security systems and control centre technology. WTG reinforces its nationwide presence with the opening of new bases for WTG Technologies in Hamburg and Hanover, for WTG Solutions and WTG Networks in Munich, as well as a new WTG base in Frankfurt. It also opens its first subsidiary in the Netherlands with the foundation of the WTG B.V. Westfälische Telecommunicatie Maatschappij Nijmegen.

Foundation of WTG Control Centre Technology

WTG Control Centre Technology is founded in Münster, relocating later to Coesfeld

WTG Leitstellentechnik GmbH (WTG Control Centre Technology) is founded in Münster in 1998. This development gives WTG a separate company structure especially for this highly specialised business segment. The subsidiary then relocates to Coesfeld in 2000. The success of such inventions as EURO ALERT, an advanced intelligent control centre management system, forms an essential part of WTG’s continued prosperity.

Foundation of WTG Technologies
Foundation of WTG Communication

Foundation of management holding WTG Communication in Berlin

WTG Communication GmbH is founded as the WTG group’s holding company in 2001. The reasoning behind its founding as the shareholder of all WTG subsidiaries is to facilitate centralised management of all strategic skills within the entire WTG consortium.

Opening of WTG in Hanover
Foundation of WTG Netherlands
Foundation of WTG Solutions
Launch of cloud solution

Launch of a new cloud solution for business communication

Comulus AG is founded in 2013 as a WTG spin-off – a cloud provider operating nationwide, whose core competencies are centred on voice, video, unified communication and collaborative working.

100 Years of WTG

100 years of WTG. We connect to the future.

In 2013 WTG celebrates its centenary under the slogan: “Only those who look ahead get to look such a long way back”. Innovation and future-oriented investment policy, together with highly motivated employees, form the basis of the company’s continued success.

Opening of WTG in Frankfurt
300 employees at 11 locations

300 Employees in Germany and the Netherlands

WTG today employs about 300 people at 11 locations, making it one of the biggest players of its industry – the WTG consortium provides three main core competencies from under a single roof: IT & communication, security systems and control centre technology.




WTG holding GmbH
Max-Dohrn-Straße 8-10 | 10589 Berlin
Tel +49 (30) 85001 - 0
Fax +49 (30) 85001 -122

WTG Berlin
WTG Westfälische Telefon-Gesellschaft Wilhelm Schütze mbH Berlin
Max-Dohrn-Straße 8-10 | 10589 Berlin
Tel +49 (30) 85001 - 0
Fax +49 (30) 85001 -122

WTG communication GmbH
Geschwister-Beschütz-Bogen 4 | 22335 Hamburg
Tel +49 (40) 23806 - 0
Fax +49 (40) 23806 - 110

WTG Technical Site Stralsund

WTG communication GmbH
Tiedthof, Goseriede 4 | 30159 Hannover
Tel +49 (511) 220605 - 0
Fax +49 (511) 220605 - 55

WTG communication GmbH
Rösnerstraße 8 | 48155 Münster
Fon +49 (251) 3993 - 0
Fax +49 (251) 3993 - 660

WTG Leitstellentechnik GmbH
Wetmarstraße 2 | 48653 Coesfeld
Fon +49 (2541) 8004 - 0
Fax +49 (2541) 8004 - 10

WTG Technical Site Düsseldorf

WTG communication GmbH
Biebricher Allee 51 | 65187 Wiesbaden
Tel +49 (69) 247483 - 100
Fax +49 (69) 247483 - 110

WTG communication GmbH
Föhringer Allee 1 | 85774 Unterföhring
Tel +49 (89) 30905588 - 0
Fax +49 (89) 30905588 - 99

WTG Technical Site Regensburg

WTG B.V. Westfälische Telecommunicatie Maatschappij
Toernooiveld 300 | 6525 EC Nijmegen, NL
Tel +31 (24) 351 21 23

Kontaktformular EN