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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,378 companies indexed · Last updated: today
DirectoryTelecommunications

Telecommunications

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IndustryIT & CommunicationIndustryTelecommunications
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Matching companies

1'209 companies found

Genossenschaft Yetnet Kabelnetz Rupperswil Logo

Genossenschaft Yetnet Kabelnetz Rupperswil 

Rupperswil · Since 1977

The core activity of Yetnet Rupperswil is the operation of a local internet, TV and telephone provider in Rupperswil, including the provision of services such as webmail, customer cockpit and shop management.

Telecommunications
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GERBER Telecom GmbH Logo

GERBER Telecom GmbH 

Langnau Im Emmental · Since 2001

GERBER Telecom GmbH provides telematics, IT and low-voltage installation services, including networks, private branch exchanges, telephones, internet and IP‑TV. The company performs planning and project engineering for telematics systems and fault remediation for voice, internet and IP‑TV equipment.

Telecommunications
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Gfeller Telematik Logo

Gfeller Telematik 

Riniken · Since 2014

Gfeller Telematik provides services and products in telecommunications, networks, and telephone systems. Services include sales, consulting, programming, project planning and installation, and assistance with migration to All‑IP telephony and Business Connect.

Telecommunications
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Gilbert Lüscher AG Logo

Gilbert Lüscher AG 

Ennetmoos · Since 1964

Gilbert Lüscher AG is a consultancy for cable network operators. The company assesses and prepares tenders, supports modernization projects, produces assessments for insurers in case of cable damage, and represents clients at trade fairs and conferences. It also supplies and sources quality products from established manufacturers for cable and broadcast applications on request.

Telecommunications
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Glasfaserkabelnetz AG Diessenhofen Logo

Glasfaserkabelnetz AG Diessenhofen 

Diessenhofen · Since 1985

Glasfaserkabelnetz AG Diessenhofen operates a fiber-optic network and provides households and businesses with fiber connections. It receives television and radio signals from SASAG and distributes them via its network, and supports additional services such as digital TV, internet, telephone and mobile through SASAG offerings.

Telecommunications
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Global Telelinks GmbH Logo

Global Telelinks GmbH 

Zug · Since 2002

The core activity of Global Telelinks is the provision of international telecommunications services, particularly prepaid international calling solutions, which enable customers to make cost-effective calls from abroad. These services include Pinless-Dialing, online accounts, Global-Roaming, Web-Phone and apps that allow users to make calls from any phone or computer. The company also offers a range of additional features such as conference calling, WhizCall telephony and a global address book function.

Telecommunications
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GMS AG Logo

GMS AG 

Baar · Since 2006

GMS AG provides AI-driven communications solutions for enterprises, mobile operators and partners, offering products such as a CPaaS suite, a campaign platform, conversational AI and network protection services including SMS firewall and traffic management.

Telecommunications
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GSC GmbH Logo

GSC GmbH 

Langnau Am Albis · Since 2002

GSC GmbH designs and implements IT projects, delivers telephony and unified-communication (UC) solutions integrated into customers' IT infrastructures, and provides IT specialists for short- and mid-term assignments. The company works with platforms such as Swyx, Innovaphone and Wildix.

IT Consulting & ServicesIT Infrastructure & CloudTelecommunications
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Harzenmoser Expertisen Logo

Harzenmoser Expertisen 

Dietikon · Since 2012

Telecommunications
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HA-Tech GmbH Logo

HA-Tech GmbH 

Au Zh · Since 2018

The core activity of HA-Tech GmbH is the implementation of network installations and civil engineering works, particularly in the field of CATV network installations, as well as the provision of services in the areas of service and maintenance.

Specialized Construction ActivitiesTelecommunications
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Heights Telecom Switzerland SA Logo

Heights Telecom Switzerland SA 

Geneva · Since 2022

Heights Telecom develops and distributes innovative hardware and software solutions for the telecommunications market, particularly gateways and WIFI extenders, combined with a unique software platform to create an ecosystem of services that enables customers to increase their average revenue per user (ARPU) and reduce customer churn.

Telecommunications
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Highcom GmbH Logo

Highcom GmbH 

Oberrohrdorf · Since 1998

The core activity of Highcom GmbH is specialization in telecommunications.

Telecommunications
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Hofmann Telecom Engineering Logo

Hofmann Telecom Engineering 

Gelterkinden · Since 1992

The core activity of Hofmann Telecom Engineering is the consulting and implementation of telecommunications solutions for companies, particularly in the areas of radio, networks, security, server structures and telephony.

Telecommunications
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HOTELMEDIA GmbH Logo

HOTELMEDIA GmbH 

Brusio · Since 2006

The core activity of Hotelmedia GmbH is the planning and implementation of individual and customized solutions for the hotel, gastronomy and institutional sectors in the areas of hotel TV solutions, reception technology, internet for SmartTVs, TV furniture and object furnishings.

TelecommunicationsWholesale - Electronic Devices
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HSK-Telematik AG Logo

HSK-Telematik AG 

Cham · Since 1989

HSK-Telematik AG specializes in planning and implementing complete fiber‑optic and IT network installations. Services include fiber and copper cabling, installation and configuration of active components (switches, routers), testing and quality checks, commissioning, and network consulting and planning (including telephone systems and CATV).

Telecommunications
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HT-INFRASERV AG Logo

HT-INFRASERV AG 

Oberkirch Lu · Since 2019

The core activity of HT-INFRASERV AG is planning, project management and construction management as well as client consulting and representation in the field of telecommunications and electrical installations. Specific services include the development of basic communication infrastructure, GSM-R and FRMCS, site sharing, client support and representation in the telecommunications sector, as well as electrical engineering for energy, lighting, security and telecommunications systems.

Telecommunications
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Huawei Technologies Switzerland AG Logo

Huawei Technologies Switzerland AG 

Liebefeld · Since 2008

Huawei Technologies Switzerland AG is a technology company that develops and supplies information and communications technology (ICT) products and solutions for carriers, enterprises and consumers, including network infrastructure, cloud services and consumer devices.

Manufacture of IT HardwareIT Infrastructure & CloudTelecommunications
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HVI-TEC Lüscher Logo

HVI-TEC Lüscher 

Zurich · Since 2023

The core activity of HVI-TEC Luescher is the development, delivery and maintenance of communication systems, in particular telephones and emergency call systems, under the label hvi-tec.ch. This also includes the maintenance, repair, conversion and expansion of existing systems of the Telbit telby brand.

Telecommunications
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iCAN GmbH Logo

iCAN GmbH 

Zug · Since 2011

The core activity of iCAN GmbH is the planning, installation and maintenance of interactive TV systems, satellite reception systems, LAN and WLAN systems, as well as digital signage solutions, particularly for the hotel industry and other sectors such as clinics, rehabilitation centers and office buildings.

Electrical Planning & InstallationTelecommunications
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I-Communic8 Sàrl Logo

I-Communic8 Sàrl 

Geneva · Since 2019

The core activity of I-Communic8 is the development and integration of VoIP (Voice over Internet Protocol) and convergence technology solutions, including the installation, maintenance and intervention of systems, as well as the provision of telephone solutions and devices. The company also provides services for migrating existing installations to VoIP systems and supports customers in implementing modern network and communication solutions.

Telecommunications
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.
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