Telecom provider in
Dübendorf

5 companies in Telecom provider based in Dübendorf — name and year of registration from the commercial register. The list below shows them all.

Companies

All 5 companies in Dübendorf

Virtual-Call GmbH Logo

Virtual-Call GmbH

Since 2020 · 11–20 empl.2.8(5)

Virtual-Call GmbH is a communications service provider specialising in cloud-based VoIP telephony. Its services include cloud PBX systems, SIP trunks, national and international phone numbers, Microsoft Teams Direct Routing and voice termination.

Telecom providerCloud PBXSIP TrunkMS Teams Direct Routing
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #1
Agdacom, AG für Daten-Communication Logo

Agdacom, AG für Daten-Communication

Since 1991 · 1–10 empl.

The core activity of agdacom AG is the planning, implementation and maintenance of telecommunications solutions, particularly VoIP systems, both on-site and from the cloud. The company also offers services such as needs analysis, project implementation, maintenance and after-sales service.

Hosting providerTelecommunications solutionsRemote maintenance
No score yetKW

KBR Wyle Services, LLC, Wilmington (USA), Zweigniederlassung Dübendorf

Since 2019 · 1–10 empl.

Telecom provider
No score yetHS

Hammer solution GmbH

Since 2024 · 1–10 empl.

Electrician
No score yetFT

fiberoptic technology GmbH

Since 2025 · 1–10 empl.

Telecom provider
No score yet

Telecom provider in Dübendorf

5Telecom providerCommercial register (Zefix) · as of November 6, 2026
2020Median year of registrationCommercial register (Zefix) · as of November 6, 2026
380in the Canton of ZurichCommercial register (Zefix) · as of November 6, 2026
1,799in SwitzerlandCommercial register (Zefix) · as of November 6, 2026
Locations

Telecom provider in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 6, 2026

Largest places

Zurich138Winterthur20Dietikon16Schlieren15Glattpark (Opfikon)11Glattbrugg8Wallisellen6Urdorf6Fehraltorf5Dietlikon5
Industry axis

Telecom provider in other places

Telecom provider across Switzerland
Zurich138Winterthur20Dietikon16Schlieren15Glattpark (Opfikon)11Glattbrugg8Wallisellen6Urdorf6Fehraltorf5Dietlikon5Herrliberg5Horgen5Kloten5Rüschlikon5Bülach5

By canton

Canton of Zurich380Canton of Vaud176Canton of Zug147Canton of Bern139Canton of Aargau121Canton of Geneva116Canton of Ticino95Canton of St. Gallen76Canton of Lucerne71Canton of Fribourg66Canton of Schwyz59Canton of Valais49Canton of Solothurn47Canton of Thurgau41Canton of Basel-Country41Canton of Neuchâtel27Canton of Grisons25Canton of Jura18Canton of Obwalden11Canton of Nidwalden11Canton of Schaffhausen10Canton of Appenzell Inner Rhodes6Canton of Glarus6Canton of Uri6
Place axis

Other industries in Dübendorf

All companies in Dübendorf
IT service provider125Management consultant110Software developer107Property management101Restaurant88Cleaning company79Holding company75Accountant74Engineer70Coach62Property developer57Online shop53Painter48Advertising agency47Real estate agent47Other services45Garage45Wholesale40Car dealership38Event agency36Renovation36Caterer36Construction manager35General contractor35Plumber34Electrician33Hairdresser32Insurance broker31Architect30Research institute29Beauty salon28Grocery store28Nonprofit organization27Recruitment agency27Tiler27Online platform27Continuing education provider27Taxi27Financial services25Machinery dealer23Sports lessons23Interior fit-out22Spa21Food manufacturer21Transport company21Food wholesaler19Specialist foundation engineering18Hosting provider18