| # | Company | Employees |
|---|---|---|
| 1 |
Ericssonericsson.com
This company aims to create connections that enable limitless possibilities, improve lives, redefine business, and pioneer a sustainable future |
107,368 |
| 2 |
Teliateliacompany.com
Reinventing connected living in the Nordics and Baltics, empowering people, companies, and societies with strong connectivity and digital services |
17,553 |
| 3 | 5,248 | |
| 4 |
GlobalConnectglobalconnectgroup.com
A leading digital infrastructure provider in Northern Europe offering Fiber-To-The-Home services to households and connectivity solutions to enterprises |
1,996 |
| 5 |
Ericsson Softwareericsson.com
The company focuses on discussing and preparing for the future of mobile networks by exploring cloud software, AI, automation, and more #ImaginePossible |
1,278 |
| 6 | 1,191 | |
| 7 | 1,189 | |
| 8 | 993 | |
| 9 |
Pensionär/livsnjutarenetworkautomation.se
Developing and marketing infrastructure systems for Telecommunication Operators with patented automation technology for copper networks under the brand NeXa |
843 |
| 10 |
Syntronic - A Global Design Housesyntronic.com
A leading engineering design house specializing in electronics, software, and system integration, focused on quality, innovation, and customer satisfaction |
729 |
| 11 |
Releasy Customer Managementreleasy.se
A customer service outsourcing company emphasizing customer value, experience, and business retention to enhance customer management |
711 |
| 12 | 703 | |
| 13 |
Transtematranstema.com
Transtema is a leading Nordic company specializing in designing, building, operating, and maintaining communication networks They also offer technical consulting and equipment |
666 |
| 14 |
Arelionarelion.com
Global IP backbone network providing extensive optical fiber and MPLS endpoints across Europe, North America, and Asia with award-winning customer support. |
595 |
| 15 |
Telenor IoTiot.telenor.com
Provides global IoT connectivity, cloud services, and expert support managing over 20 million connected devices for enterprises worldwide. |
506 |
| 16 |
Swedish Post and Telecom Authoritypts.se
Ensuring access to reliable telecommunication, broadband, and postal services in Sweden through the regulation and oversight efforts of the Swedish Post and Telecom Authority |
482 |
| 17 |
Sigma Connectivitysigmaconnectivity.com
A tech house specializing in connected solutions and devices, with advanced labs to help clients bring smart products to market globally |
460 |
| 18 |
PPC Broadband, Inc. - A Belden Brandppc-online.com
Industry leader in connectivity technology for the telecommunication sector, providing broadband and wireless solutions worldwide with a legacy of innovation and manufacturing excellence |
442 |
| 19 |
Polystar | Elisa Industriqelisaindustriq.com
The company develops autonomous network solutions using data analytics, AI, and automation to improve efficiency, reduce carbon footprint, and enable self-driving networks for CSPs globally |
395 |
| 20 |
IP-Onlyip-only.se
Leading expert and provider of network infrastructure and services in the Nordic region, connecting customers in Scandinavia to global opportunities through secure infrastructure |
381 |
| 21 |
Hexatronichexatronic.com
A global provider of fiber optic infrastructure solutions, offering cutting-edge technology and services to ensure continuous connectivity for customers worldwide |
369 |
| 22 |
Telavoxtelavox.com
The company provides a solution to improve business communication by eliminating phone queues and offering hassle-free communication services |
342 |
| 23 |
Bahnhof AB (Publ)bahnhof.se
A Sweden-based Internet Service Provider offering data transmission, broadband services for individuals and companies, and server operations via data centers |
333 |
| 24 |
TeleCenterwecall.se
A call center established in 1998, providing phone services for 900 companies across Sweden, specializing in market research, customer service, and telephone handling |
241 |
| 25 | 219 | |
| 26 |
Com Hem ABtele2.com
Leading provider of digital TV, broadband, and telephony services in Sweden Offering a wide range of services to households and businesses since 1983 |
207 |
| 27 |
Doro Groupdoro.com
Development of consumer technology products and services enabling seniors to live independently and stay digitally connected across multiple countries. |
187 |
| 28 |
GlobalConnect Sverigeglobalconnect.se
The company provides digital infrastructure and local presence to enable businesses and communities to function in an increasingly connected reality, simplifying complexities |
175 |
| 29 |
Netmorenetmoregroup.com
Global IoT operator providing secure, reliable communication networks and ecosystems for cities, industries, and properties worldwide with partners. |
170 |
| 30 |
OneCo Sverigeoneco.se
The company is a part of the OneCo group, specializing in building and maintaining technical infrastructure, including power, green energy, IoT/IT, and telecom solutions |
166 |
| 31 |
Effective Communicationeffectivecommunication.se
A leading customer management company in Sweden, specializing in exceeding customer expectations and building long-lasting, meaningful partnerships with top brands |
158 |
| 32 | 151 | |
| 33 |
Teligent Telecomteligent.se
A leading supplier of infrastructure solutions to telecommunication operators worldwide, specializing in network services, call completion solutions, enterprise services, and real-time charging enablers |
148 |
| 34 |
Rebtelrebtel.com
Dedicated to breaking down borders, Rebtel provides products for the modern internationals of the world, with a diverse global team based in Stockholm |
96 |
| 35 |
Satcubesatcube.com
Manufactures compact, lightweight satellite terminals providing high-performance broadband connectivity for broadcast media, emergency response, and global organizations in remote locations without engineering expertise. |
39 |
| 36 |
Solinide Photonics ABsolinide.com
A start-up specializing in prototyping photonic integrated circuits with silicon nitride core waveguides and commercializing integrated frequency combs based on patented technology |
8 |
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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 Oct 9, 2026.
More company lists in Sweden
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- Higher Education companies in Sweden 49
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- Personal Care Product Manufacturing companies in Sweden 46
- Industrial Machinery Manufacturing companies in Sweden 45
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