Company lists · Data verified August 2026

Top 25 Cybersecurity support companies based in Denmark

Name: Cybersecurity support companies based in Denmark
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 92 companies tracked

There are 92 cybersecurity support companies headquartered in Denmark (RevenueBase, August 2026). RevenueBase tracks 840 professional contacts across them, including 179 with verified work emails and 39 with mobile numbers. Copenhagen is the largest hub.

This list covers cybersecurity support companies headquartered in Denmark, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

92Companies

840Contacts tracked

179Verified emails

39Mobile numbers

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The 25 largest cybersecurity support companies based in Denmark

Ranked by team size

Top 25 of 92 cybersecurity support companies based in Denmark, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Reversec	n/a	201-500	173	110
2	Heimdal	Kobenhavn V Copenhagen	51-200	150	1
3	Kopenhagen Konsulting	n/a	51-200	68	2
4	Safesqr	Copenhagen	11-50	22	17
5	Defensive Group	Solrod Strand Zealand	11-50	20	2
6	Prueba Cybersecurity	Esbjerg Of Southern	11-50	19	1
7	2c Networks	Viby J	11-50	17	6
8	Sikring Nord A S	Saeby	1-10	12	1
9	Ceta Cyber Defence	Vaerlose	11-50	11	3
10	LCG	Naestved Zealand	11-50	9	1
11	Haze Networks APS	Kobenhavn	1-10	9	1
12	Cybernordic	Copenhagen Capital Of Denmark	1-10	8	5
13	Cyber Partners	Aarhus Central	1-10	7	4
14	bestsecurity.dk	Tilst	11-50	7	3
15	Danish Cyber Defence	Copenhagen	11-50	7	2
16	Banshie	n/a	11-50	6	3
17	Opiniosec	Hellerup	1-10	5	2
18	Teamit APS	Kolding	11-50	4	1
19	Riskkey	Copenhagen	1-10	3	1
20	Nil815	n/a	1-10	2	2
21	Sekuritet	Albertslund	1-10	2	1
22	Nielco IT	Hadsten Central	1-10	1	1
23	Qualsec	Horsens	1-10	1	1
24	Solutionlab	Hellerup	1-10	1	1
25	Sndnss APS	Hedehusene	1-10	1	1

Showing 25 of 92 cybersecurity support companies based in Denmark

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Cybersecurity support companies based in Denmark at a glance

As of Aug 28, 2026

1-10Median size (employees)

CopenhagenLargest hub · 11 HQs

39Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Cybersecurity support companies by metro

Metro	Companies
Cybersecurity support companies in Copenhagen	11
Cybersecurity support companies in Aarhus Central	3
Cybersecurity support companies in Hellerup	3
Cybersecurity support companies in Greve	2
Cybersecurity support companies in Aalborg	2
Cybersecurity support companies in Copenhagen Capital Of Denmark	2
Cybersecurity support companies in Kobenhavn K	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity support companies”, with match quality audited by blind human judging, and headquartered in Denmark.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity support companies are there based in Denmark?

There are 92 cybersecurity support companies headquartered in Denmark as of August 2026 (RevenueBase).

What is the largest company on this list?

Reversec, headquartered in Denmark, tops this list with the largest team on record.

Which city has the most cybersecurity support companies?

Copenhagen leads with 11 headquartered companies, followed by Aarhus Central (3) and Hellerup (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 179 verified decision-maker contacts tracked across these 92 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.