Company lists · Data refreshed September 2026
Top 25 Network security consulting firms based in Denmark
RevenueBase identified 75 network security consulting firms headquartered in Denmark as of September 2026 and tracks 485 professional contacts across them, including 79 with verified work emails and 15 with mobile numbers. Copenhagen is the largest hub.
This list covers network security consulting firms 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 25 largest network security consulting firms based in Denmark
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 68 | ||||
“At Kopenhagen Konsulting, we dive deep into your objectives and become your reliable allies in exploring the unknown, with a special focus on cybersecurity, digitalization, risk…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 41 | ||||
“SecureDevice A/S is a Danish owned IT-Security company.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 41 | ||||
“QUITE SIMPLY, WE HELP COMPANIES THROUGH COMPLEX IT CHANGE At Mindcore we build on a unique set of capabilities combining deep understanding of business processes with hardcore…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 24 | ||||
“We ensure your traffic is optimized, inspected, and secured.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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. | |||||
| 6 | 19 | ||||
“Vi er uvildige eksperter inden for it-sikkerhed.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 17 | ||||
“2C Networks - Clarity in a complex world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 12 | ||||
“Hvornår har du sidst tjekket dine forsikringskrav?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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. | |||||
| 10 | 9 | ||||
“IT handler ikke længere kun om drift.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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. | |||||
| 12 | 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. | |||||
| 13 | 8 | ||||
“Denmark is among the most digitized countries in the world.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 | ||||
“We are Cyber Partners, your trusted partner in cybersecurity.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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. | |||||
| 16 | 6 | ||||
“OpenIT offers IT Network Consultants.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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. | |||||
| 18 | 2 | ||||
“NIL815 operates on a Business First principle.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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. | |||||
| 20 | 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. | |||||
| 21 | 1 | ||||
“sndnss aps helps organizations build robust cybersecurity without expensive consultant dependencies.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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. | |||||
| 23 | 1 | ||||
“Our agenda & purpose is to ensure that compromises & risks are reduced to the maximum.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 | ||||
“Professional and flexible It-security solutions and services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 | ||||
“EM Sikring ApS er sikkerhedsrådgivning med speciale i sikring af private boliger og erhverv.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 75 network security consulting firms based in Denmark
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Network security consulting firms 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 firms, 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 firms”. 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 firms, 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, 79 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 firms are there based in Denmark?
RevenueBase identified 75 network security consulting firms 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?
Kopenhagen Konsulting, headquartered in Denmark, tops this list with the largest team on record.
Which city has the most network security consulting firms?
Copenhagen leads with 4 headquartered companies, followed by Copenhagen Capital Of Denmark (3) and Kobenhavn (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 79 verified decision-maker contacts tracked across these 75 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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