These telecommunications companies in Switzerland include a mix of established providers and specialized service firms. Sunrise, founded in 2021, offers mobile, internet, TV, and fixed network services. The International Telecommunication Union, established in 1865, is a global organization driving innovation in information and communication technologies. cablex AG, a subsidiary of Swisscom, specializes in ICT and network infrastructure. Salt Mobile provides career opportunities in the telecom sector.
A notable pattern is the presence of several companies headquartered in Geneva, including the International Telecommunication Union and MADA®, which offers global telecom solutions. Many of these companies focus on various aspects of telecommunications, from core network services and infrastructure to specialized areas like business intelligence, fraud prevention, and satellite technology.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Sunrisesunrise.ch
A telecommunications company in Switzerland offering mobile, Internet, TV, and fixed network services with leading gigabit fiber optic and 5G networks |
5,145 | |||
| 2 |
International Telecommunication Unionitu.int
A global organization driving innovation in information and communication technologies, connecting the world through standards, spectrum allocation, and improving access to ICTs worldwide |
1,580 | |||
| 3 | 1,320 | ||||
| 4 |
Salt Mobilesalt.ch
Providing career opportunities for ambitious and talented individuals, including internships for university students to kick-start their professional journey. |
1,192 | |||
| 5 |
Côte d'Ivoire Câblescicables.com
Leading Ivorian company specializing in telecom services, providing deployment and maintenance services for Orange CI’s wired network since June 21, 2016 |
829 | |||
| 6 | 740 | ||||
| 7 |
WDS-SICAPwds-sicap.com
Leading provider of telecom business intelligence and device management solutions, specializing in optimizing operations and enhancing customer experiences globally |
728 | |||
| 8 |
Connect44connect44.com
A leading telecom services provider in Europe, offering network planning, building, and management solutions for telecom operators and fiber companies |
600 | |||
| 9 |
UPC Schweiz GmbHupc.ch
A leading provider of communication and entertainment, offering high-speed internet, mobile services, TV entertainment, and technology solutions for residential and business customers |
599 | |||
| 10 |
mobilezonemobilezoneholding.ch
Retail of smartphones, accessories, wearables, mobile and fixed-line subscriptions, digital TV, internet, plus repair and refurbished phone sales. |
424 | |||
| 11 |
Starhome Machstarhomemach.com
This company provides innovative solutions for the mobile industry, including B2B Settlement, Customer Engagement, Fraud and Security, and IoT services |
412 | |||
| 12 |
MADA®mymada.com
Global telecom solutions provider offering Voice, Messaging, Data, Billing, Fintech, Cybersecurity, and Digital services to clients worldwide for seamless communication and growth |
325 | |||
| 13 |
Orange Communications SAorange.com
Connects users with new career opportunities by providing a link to its updated careers page on LinkedIn, showcasing available positions. |
291 | |||
| 14 |
SWISSto12swissto12.com
A leading manufacturer of advanced RF products, satellite payloads, and systems, specializing in 3D printing technology for lightweight, high-performance telecommunications and surveillance solutions |
224 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 15 |
Quickline AGquickline.ch
Innovative developer of multimedia services for private customers, providing quality solutions through fiber-optic backbone to independent cable companies and energy providers |
187 | |||
| 16 |
Bucher + Suterbucher-suter.com
Connected CX expert digitizing customer experience with collaboration, omnichannel routing, AI, and CRM integrations for Cisco, improving efficiency and customer satisfaction globally |
159 | |||
| 17 |
Comfone AGcomfone.com
Specializing in roaming services worldwide, we offer Swiss quality and personalized service through our comprehensive portfolio of signaling, data clearing, and roaming management solutions |
155 | |||
| 18 |
VTX Telecomvtx.ch
A Swiss-based telecommunications group offering innovative services including Internet access, telephony, web hosting, and cloud services tailored for small and medium-sized enterprises |
150 | |||
| 19 |
DialogWorld AGdialogworld.ch
The company specializes in customer experience through telephone marketing, dialog marketing, inbound/outbound strategies, automation, and 24/7 hotline services |
125 | |||
| 20 |
Schmid & Partner Engineering AG (SPEAG)speag.swiss
A Switzerland-based company develops innovative test equipment for electromagnetic radiation evaluation, including SAR measurements, near-field scanning, and RF performance modeling for 5G technologies |
56 | |||
| 21 | 27 | ||||
| 22 | 16 | ||||
| 23 |
Astrocastastrocast.com
Operating as a pioneer in the Swiss satellite IoT market, Astrocast provides efficient and cost-effective communications through a 100-satellite infrastructure |
12 | |||
| 24 |
Cucuyocucuyo.group
Specializing in new aerospace engineering, our experts offer coaching and consultancy for cutting-edge solutions in opto-electronics, controls, communications, and data highways |
12 | |||
| 25 |
Swiss Mobility Solutions, a Gemalto companygemalto.com
The company's customer experience platform improves end-user satisfaction for mobile network operators and OEMs by proactively identifying and solving subscriber issues |
7 | |||
| 26 |
RoadSatroadsat.it
The company specializes in satellite telecommunications in the Ka band, satellite audio-video conferencing, data transmissions, and surveillance services |
6 | |||
| 27 |
Novobit AGnovobit.ch
A Swiss company specializing in fiber optic products for global markets since 2000, focusing on FTTx networks and data centers Building strong customer relationships |
5 | |||
| 28 |
comsuisse AGcomsuisse.ch
A company specializing in safety critical voice communication solutions, combining experience in TDM and modern VoIP technology for ICS 200/60 systems |
4 | |||
| 29 |
Orbitareorbitare.space
A company based in Switzerland and Luxembourg develops space applications, starting with Spaceloop for affordable and reliable satellite personal communications |
3 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
More company lists in Switzerland
- The largest companies in Switzerland 6,776
- Multinational companies in Switzerland 1,793
- Companies with in-house R&D in Switzerland 916
- Financial services firms in Switzerland 875
- Manufacturers in Switzerland 748
- Real Estate companies in Switzerland 637
- IT Services and IT Consulting companies in Switzerland 574
- Hardware manufacturers in Switzerland 538
- Financial Services companies in Switzerland 525
- IT services companies in Switzerland 438
- SaaS companies in Switzerland 435
- Retail chains in Switzerland 424
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- Software Development companies in Switzerland 380
- Critical infrastructure operators in Switzerland 378
- Family-owned companies in Switzerland 346
- Consulting firms in Switzerland 288
- Publicly traded companies in Switzerland 262
- Pharmaceutical companies in Switzerland 242
- Property management companies in Switzerland 227
- Companies with a mobile app in Switzerland 225
- Medical Equipment Manufacturing companies in Switzerland 225
- Medical device companies in Switzerland 223
- Investment Management companies in Switzerland 216