Company lists · Data refreshed September 2026

Top 25 Telecommunications infrastructure companies based in Sweden

RevenueBase identified 114 telecommunications infrastructure companies headquartered in Sweden as of September 2026 and tracks 5,428 professional contacts across them, including 2,087 with verified work emails. Stockholm is the largest hub.

This list covers telecommunications infrastructure companies headquartered in Sweden, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
114Companies
5,428Contacts tracked
2,087Verified emails
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The 25 largest telecommunications infrastructure companies based in Sweden

Ranked by team size
Top 25 of 114 telecommunications infrastructure companies based in Sweden, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications infrastructure companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceStockholm, SwedenHQ checked Sep 16, 20261,001-5,0002,709 contacts →

Partial evidence

“Eltel is one of the leading service providers for critical infrastructure in the Nordics.”

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceMölndal, SwedenHQ checked Sep 16, 20261,001-5,000558 contacts →

Indirect evidence

“Transtema är ett av Nordens ledande företag när det gäller att installera, underhålla och sköta driften av olika typer av kommunikationsinfrastruktur.”

Source: RevenueBase Database · checked Sep 16, 2026
3Strong evidenceDanderyd, SwedenHQ checked Sep 16, 202651-20079 contacts →

Strong evidence

“As a leading supplier of infrastructure solutions and value-added services to telecommunication operators, Teligent Telecom support its customers worldwide with network services…”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceMora, SwedenHQ checked Sep 16, 202651-20067 contacts →

Indirect evidence

“När din teknik ska upp i luften så ordnar vi på Scanmast det.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceSöderhamn, SwedenHQ checked Sep 16, 202651-20061 contacts →

Indirect evidence

“Söderhamn Nära är Söderhamns infrastrukturbolag.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceStockholm, SwedenHQ checked Sep 16, 202651-20035 contacts →

Indirect evidence

“OCIUSNET GROUP AB is a complete end to end provider for Fiber Network Deployment services, from Business Planning/Consulting, Engineering design to Network Roll-out under full…”

Source: RevenueBase Database · checked Sep 16, 2026
7Indirect evidenceVäxjö, SwedenHQ checked Sep 16, 202611-5035 contacts →

Indirect evidence

“Mer än hälften av regionens företag har redan valt problemfri fiberanslutning från Griffel.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceUmeå, SwedenHQ checked Sep 16, 202611-5029 contacts →

Indirect evidence

“Skarp service, stor passion – det är vad som driver oss på Mobile Partner.”

Source: RevenueBase Database · checked Sep 16, 2026
9Indirect evidenceKristianstad, SwedenHQ checked Sep 16, 202651-20023 contacts →

Indirect evidence

“Välkommen till Telarco AB - ett lokalt förankrat företag med rötter i bredbandsbranschen.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceSolna, SwedenHQ checked Sep 16, 202611-5021 contacts →

Partial evidence

“TPO delivers robust communication infrastructure for environments where connectivity is mission-critical.”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceSölvesborg, SwedenHQ checked Sep 16, 202611-5019 contacts →

Indirect evidence

“Tammp AB jobbar med utökning av de befintliga 3G/4G/5G näten samt med byggnation och service åt en av Sveriges största Fiber/KabelTV/Bredband/Telefoni operatörer.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceNyköping, SwedenHQ checked Sep 16, 202611-5018 contacts →

Indirect evidence

“Anläggningsarbeten för el och telekommunikation”

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceMölndal, SwedenHQ checked Sep 16, 202611-5017 contacts →

Indirect evidence

“AT Installation började sin verksamhet 1956 under namnet Antenn- & Teleservice i samband med att TV1 introducerades i Sverige.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceTrollhättan, SwedenHQ checked Sep 16, 202651-20017 contacts →

Indirect evidence

“SLL Energi & Infrastruktur AB is a civil engineering company offering a wide range of services within Construction, Power and Telecom.”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceStockholm, SwedenHQ checked Sep 16, 202651-20016 contacts →

Indirect evidence

“WE CONSULTING REPRESENTS A NEW BREED OF CONSULTING COMPANIES.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceVarberg, SwedenHQ checked Sep 16, 202651-20015 contacts →

Indirect evidence

“Blacklink är ett teknikbolag som grundades 2011 i Varberg på Sveriges västkust.”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceMölndal, SwedenHQ checked Sep 16, 202611-5015 contacts →

Indirect evidence

“Seths Fiber & Telekom är framförallt verksamma inom byggnation av bredbandsnät (fasta och trådlösa), opererande av bredbandstjänster via Fiber, Koax och LAN samt försäljning i vår…”

Source: RevenueBase Database · checked Sep 16, 2026
18Indirect evidenceKarlshamn, SwedenHQ checked Sep 16, 202651-20014 contacts →

Indirect evidence

“Sedan 2007 har Network Solutions anslutit människor till internet, men förutom anläggningsarbeten och fiberinstallation hjälper vi även till med teleservice för både privata…”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceKarlskoga, SwedenHQ checked Sep 16, 202611-5014 contacts →

Indirect evidence

“MastIT Group är ett entreprenörsdrivet installationsbolag inom nätverksutbyggnad för mobila, militära- och säkerhetssystem och grundades 2018.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceStockholm, SwedenHQ checked Sep 16, 202611-5013 contacts →

Indirect evidence

“NSP är ett snabbväxande företag med lång erfarenhet inom telekom-branschen.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceKalmar, SwedenHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

“Baltic Offshore was formed as an independent private company in 2006.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidenceMalmö, SwedenHQ checked Sep 16, 202651-20012 contacts →

Indirect evidence

“Vi på CR Electric Fiber & Kabelteknik AB har många års erfarenhet av projektledning, förvaltning, byggnation, och schakt inom telekominfrastruktur, både genom luft och via kabel.”

Source: RevenueBase Database · checked Sep 16, 2026
23Indirect evidenceNacka, SwedenHQ checked Sep 16, 202611-5012 contacts →

Indirect evidence

“Elektropartner Nacka AB är ett ledande företag inom installation av fiber- och lågnivåspänningstjänster i Nacka och Stockholmsområdet.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceBromma, SwedenHQ checked Sep 16, 202611-5011 contacts →

Indirect evidence

“Välkommen till Bright Networks, ett framåtlutat företag med fokus på byggnation, service, drift och underhåll av fibernät.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceAnderstorp, SwedenHQ checked Sep 16, 202611-5010 contacts →

Indirect evidence

“Vi är företaget som producerar och säljer el & bredbandslösningar inom våra tre olika marknadsområden, infrastruktur, tillfällig el och fastigheter.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 114 telecommunications infrastructure companies based in Sweden

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Telecommunications infrastructure companies based in Sweden at a glance

As of Sep 16, 2026
38.4%Verified-email coverage
47.6Average contacts per company
11-50Median size (employees)
14.9%Largest-city concentration · Stockholm
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
39
11-50
55
51-200
15
201-500
2
1,001-5,000
2

Email recency for this list is measured worldwide rather than for Sweden, so it is reported there. Company counts and contact totals on this page are exact for Sweden, over 114 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among telecommunications infrastructure companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Sweden whose own description of what they do matches “telecommunications infrastructure companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names telecommunications infrastructure companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among telecommunications infrastructure companies, and records with no verified work email. Companies headquartered outside Sweden are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 2,087 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names telecommunications infrastructure companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many telecommunications infrastructure companies are there based in Sweden?

RevenueBase identified 114 telecommunications infrastructure companies headquartered in Sweden as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

ELTEL, headquartered in Stockholm, tops this list with the largest team on record.

Which city has the most telecommunications infrastructure companies?

Stockholm leads with 17 headquartered companies, followed by Molndal (4) and Enkoping (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,087 verified decision-maker contacts tracked across these 114 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.