Company lists · Data refreshed September 2026
Top 19 Network security consulting companies based in Denmark
RevenueBase identified 54 network security consulting companies headquartered in Denmark as of September 2026 and tracks 269 professional contacts across them, including 54 with verified work emails and 8 with mobile numbers. Copenhagen Capital Of Denmark is the largest hub.
This list covers network 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 19 largest network security consulting companies based in Denmark
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 41 | ||||
“SecureDevice A/S is a Danish owned IT-Security company.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 24 | ||||
“We ensure your traffic is optimized, inspected, and secured.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | Defensive GroupPartial evidence | 20 | |||
“Defensive Group is a Danish security consultancy firm operating internationally.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 17 | ||||
“2C Networks - Clarity in a complex world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 11 | ||||
“Cyber Event & Threat Assessors (CETA), offers advisory, services & solutions within cyber security.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 9 | ||||
“LCG is a cybersecurity partner helping organisations strengthen resilience before, during and after a cyber attack.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 9 | ||||
“Wi-Fi, IT-Infrastruktur, IT-Sikkerhed og Pentests Haze Networks stiller med 30+ års erfaring og solide kompetencer inden for netværk, infrastruktur & sikkerhed.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 8 | ||||
“Denmark is among the most digitized countries in the world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 | ||||
“We are Cyber Partners, your trusted partner in cybersecurity.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | BanshiePartial evidence | 6 | |||
“Banshie is a cyber security company that offers consultancy services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 | ||||
“OpenIT offers IT Network Consultants.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 | ||||
“TeamIT er en højt certificeret IT-totalleverandør med hovedfokus på netværk og IT-sikkerhed.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 2 | ||||
“NIL815 operates on a Business First principle.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2 | ||||
“Sekuritet leverer uvildig og dokumenterbar IT-sikkerhedsrådgivning til organisationer med egen IT-funktion.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 | ||||
“IT security, IT infrastructure, Risk analysis, IT revision, investigation of IT events, IT implementation and IT consulting.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 1 | ||||
“AH Consult ApS har mange års erfaring med netværkssikkerhed og påtager os ofte opgaver, der skal sikre alle komponenter i en IT-infrastruktur.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 1 | ||||
“Professional and flexible It-security solutions and services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1 | ||||
“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 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | VZ SecurePartial evidence | 1 | |||
“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 5, 2026Thanks. The Data Team will review it. | |||||
Showing 19 of 54 network security consulting companies based in Denmark
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Network security consulting companies based in Denmark at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 network security consulting companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Denmark whose own description of what they do matches “network security consulting companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among network 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 an evidence 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, 54 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 5, 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
How many network security consulting companies are there based in Denmark?
RevenueBase identified 54 network 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 network security consulting companies?
Copenhagen Capital Of Denmark leads with 3 headquartered companies, followed by Albertslund (2) and Copenhagen (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 54 verified decision-maker contacts tracked across these 54 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 5, 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 SmartSearch, 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.
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