Telecommunications in
Glattpark (Opfikon)

TELDAS GmbH

Since 2003 · 11–20 empl.

The core activity of Teldas GmbH is to provide services to the telecommunications industry, particularly in the management of number portability (Number Portability) and the assignment of Individual Numbers (INA) for Swiss and Liechtenstein telecommunications providers. This includes the management of porting processes, the provision of routing information and the management of INA tariffs.

Cellnex Switzerland AG

Since 2017 · 51–100 empl.

The core activity of Cellnex is the neutral and shared management of telecommunications infrastructure, including: Telecommunications infrastructure services, Broadcasting and transmission services, DAS and Small-Cell technology, Data centers, Fiber and IoT services, Smart Services and IoT applications. The company offers these services to various industries, including public administration, mobile network operators, transport and logistics, governments and others.

Sunrise GmbH

Since 2000 · 500+ empl.·1.3(43)

The core activity of Sunrise is the provision of telecommunications services, including mobile, fixed network, broadband and TV services, as well as the provision of integrated ICT solutions for private and business customers in Switzerland.

WebEye International GmbH

Since 2005 · 1–10 empl.

Swiss Towers AG

Since 2017 · 1–10 empl.

Swiss Infra Services SA

Since 2019 · 1–10 empl.

Swiss Open Fiber AG

Since 2020 · 1–10 empl.

Infra Management GmbH

Since 2020 · 1–10 empl.

Grid Tracer AG

Since 2020 · 1–10 empl.

Fiber Connection GmbH

Since 2021 · 1–10 empl.

Telecom Infrastructure Partners Switzerland GmbH

Since 2024 · 1–10 empl.