Company lists · Data refreshed September 2026

Top 14 Telecom security consulting companies based in Denmark

RevenueBase identified 35 telecom security consulting companies headquartered in Denmark as of September 2026 and tracks 205 professional contacts across them, including 50 with verified work emails and 6 with mobile numbers. Copenhagen is the largest hub.

This list covers telecom security consulting companies headquartered in Denmark, 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 6, 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 6, 2026 86% judged on-target in blind review
35Companies
205Contacts tracked
50Verified emails
6Mobile numbers
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The 14 largest telecom security consulting companies based in Denmark

Ranked by team size
Top 14 of 35 telecom security consulting companies based in Denmark, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to telecom security consulting 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 evidenceSøborg, DenmarkHQ checked Sep 6, 202611-5041 contacts →

“SecureDevice A/S is a Danish owned IT-Security company.”

Source: company website · checked Sep 6, 2026
2Indirect evidenceKøge, DenmarkHQ checked Sep 6, 202611-5020 contacts →

“Cematech udfører alle former for teknik og har speciale i fiber og tele installation, overalt i Danmark.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceViby J, DenmarkHQ checked Sep 6, 202611-5017 contacts →

“2C Networks - Clarity in a complex world.”

Source: company website · checked Sep 6, 2026
4Indirect evidenceSæby, DenmarkHQ checked Sep 6, 20261-1012 contacts →

“Hvornår har du sidst tjekket dine forsikringskrav?”

Source: company website · checked Sep 6, 2026
5Partial evidenceKøbenhavn K, DenmarkHQ checked Sep 6, 20261-107 contacts →

“Salamon & Company is an independent consulting company providing independent technical and commercial advice to private and public companies.”

Source: company website · checked Sep 6, 2026
6Indirect evidenceSønderborg, DenmarkHQ checked Sep 6, 20261-106 contacts →

“Gidion er en førende teknologivirksomhed, der skiller sig ud fra konkurrenterne med vores ekspertise og dybe forståelse inden for IT, sikkerhed og telefoni.”

Source: company website · checked Sep 6, 2026
7Partial evidenceDenmarkHQ checked Sep 6, 202611-506 contacts →

“Banshie is a cyber security company that offers consultancy services.”

Source: company website · checked Sep 6, 2026
8Indirect evidenceKolding, DenmarkHQ checked Sep 6, 202611-504 contacts →

“TeamIT er en højt certificeret IT-totalleverandør med hovedfokus på netværk og IT-sikkerhed.”

Source: company website · checked Sep 6, 2026
9Indirect evidenceCopenhagen, DenmarkHQ checked Sep 6, 20261-102 contacts →

“NIL815 operates on a Business First principle.”

Source: company website · checked Sep 6, 2026
10Indirect evidenceNykøbing Mors, DenmarkHQ checked Sep 6, 20261-102 contacts →

“Idano Sikring er en 100% privatejet sikringsvirksomhed og kan med mere end 12 års erfaring tilbyde markedets mest moderne og anerkendte sikringsløsninger.”

Source: company website · checked Sep 6, 2026
11Strong evidenceOdense Sv, DenmarkHQ checked Sep 6, 20261-102 contacts →

“IT security, IT infrastructure, Risk analysis, IT revision, investigation of IT events, IT implementation and IT consulting.”

Source: company website · checked Sep 6, 2026
12Partial evidenceKøbenhavn V, DenmarkHQ checked Sep 6, 20261-101 contacts →

“Professional and flexible It-security solutions and services.”

Source: company website · checked Sep 6, 2026
13Strong evidenceHorsens, DenmarkHQ checked Sep 6, 20261-101 contacts →

“With 30 years of experience in the IT industry, I’m considered a seasoned professional with expertise in areas of IT & Information security, engineering, consulting, and technical…”

Source: company website · checked Sep 6, 2026
14Partial evidenceCopenhagen, DenmarkHQ checked Sep 6, 20261-101 contacts →

“Years of experience in the vibrant world of IP security eco-systems have enabled us to provide expert consultancy to achieve maximum results with the lowest TCO for our customers.”

Source: company website · checked Sep 6, 2026

Showing 14 of 35 telecom security consulting companies based in Denmark

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Telecom security consulting companies based in Denmark at a glance

As of Sep 6, 2026
24.4%Verified-email coverage
2.9%Mobile-number coverage
5.9Average contacts per company
1-10Median size (employees)
5.7%Largest-city concentration · Copenhagen
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
10

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 telecom security consulting 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 Denmark whose own description of what they do matches “telecom security consulting 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 telecom security consulting 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 telecom security consulting companies, and records with no verified work email. Companies headquartered outside Denmark 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, 50 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 6, 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 telecom security consulting 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 telecom security consulting companies are there based in Denmark?

RevenueBase identified 35 telecom security consulting companies headquartered in Denmark 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?

Sits Securedevice, headquartered in Soborg, tops this list with the largest team on record.

Which city has the most telecom security consulting companies?

Copenhagen leads with 2 headquartered companies, followed by Hillerod (2) and Kolding (2).

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 50 verified decision-maker contacts tracked across these 35 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 6, 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.