Company lists · Data refreshed September 2026
Top 25 IT infrastructure and security companies based in Denmark
RevenueBase identified 239 IT infrastructure and security companies headquartered in Denmark as of September 2026 and tracks 4,919 professional contacts across them, including 594 with verified work emails and 147 with mobile numbers. Copenhagen is the largest hub.
This list covers IT infrastructure and security 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 27, 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.
The 25 largest IT infrastructure and security companies based in Denmark
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,365 contacts → | ||||
Partial evidence “We’re here to provide digital infrastructure that helps companies and institutions steer a straight course.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 235 contacts → | ||||
Strong evidence “Danoffice IT is a supplier of IT infrastructure to organizations both in the public and private sector, all around the world, and we are a leading supplier of IT to IGO’s and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 197 contacts → | ||||
Partial evidence “Vi hjælper ambitiøse virksomheder med at løse komplekse it-udfordringer og nå krævende forretningsmål.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 182 contacts → | ||||
Partial evidence “Conscia Danmark leverer sikre it-infrastrukturløsninger og 24/7-services inden for netværk, sikkerhed, hybrid cloud og mobile enheder.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 182 contacts → | ||||
Strong evidence “Customized IT for your business: Being one of the leading IT and infrastructure solution companies in Denmark we have accrued the highest level of expertise and have the best…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 149 contacts → | ||||
Indirect evidence “Heimdal is an industry-leading unified and AI-powered cybersecurity solutions provider established in Copenhagen in 2014.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 136 contacts → | ||||
Indirect evidence “Der er mange måder, I kan udvikle jeres forretning på.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 134 contacts → | ||||
Indirect evidence “Netic hjælper offentlige og private virksomheder med løsninger indenfor Applikationsdrift, Cloud Operations og Hosting - naturligvis tilpasset kundens ønsker og behov.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 126 contacts → | ||||
Indirect evidence “You can only get the right solutions, when you have a partner who knows you and your company’s needs.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 119 contacts → | ||||
Indirect evidence “cVation er et førende udviklings- og konsulenthus med speciale i Azure-baserede enterprise-løsninger - tre gange kåret som Microsofts Partner of the Year i Application Innovation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 96 contacts → | ||||
Strong evidence “Conscia is a leading provider of cybersecurity and networking solutions for mission-critical IT infrastructure in large European organizations.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 94 contacts → | ||||
Strong evidence “Coromatic A/S provides physical IT-security products and services as well as reliable power solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 68 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 53 contacts → | ||||
Indirect evidence “INVIXO Consulting Group is an agile and innovative consulting company with an international footprint undergoing significant growth within all business areas, serving private as…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 53 contacts → | ||||
Partial evidence “Advania is a leading Nordic IT provider that customizes deliveries of services and products to thousands of corporate customers in the public and private sectors.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 52 contacts → | ||||
Indirect evidence “Codeex er en privat, danskejet virksomhed med lokationer i Herlev, Aalborg, Lund og Oslo.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 49 contacts → | ||||
Partial evidence “IT STRATEGI & RÅDGIVNING Hos ADDvision er vi tæt på din hverdag – og knytter stærke bånd mellem IT og din forretning, så du får en gennemtænkt og fremtidssikker IT-strategi…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 48 contacts → | ||||
Strong evidence “We are a full-service IT partner delivering future-proof IT security, IT infrastructure, IT operation and IT support to small and medium-sized companies in different industries.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 41 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 35 contacts → | ||||
Partial evidence “Når IT er stabilt og sikkert, kan I bruge tiden på det, der skaber værdi.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 33 contacts → | ||||
Partial evidence “datacompagniet har mere end 20 års erfaring som infrastruktur-leverandør med fokus på salg af it-service og -support, hardware, software, licenser og netværk til SMV'er i Danmark…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 contacts → | ||||
Partial evidence “Hos CCIT forpligter vi os til, at give dig de bedste forudsætninger for at lykkes med IT infrastruktur, Cloud, print- og dokumenthåndtering.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 32 contacts → | ||||
Partial evidence “M Networks er en dansk IT-virksomhed med over 20 års erfaring inden for IT-branchen.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 32 contacts → | ||||
Partial evidence “Hos ITAGIL fungerer vi som en ekstern IT afdeling, med alle de faglige IT kompetencer jeres virksomhed har behov for.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 32 contacts → | ||||
Indirect evidence “FLC Denmark was established in April 1990.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT infrastructure and security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names IT infrastructure and security companies.
- Partial evidence
- Its own public description names part of IT infrastructure and security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT infrastructure and security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 239 IT infrastructure and security companies based in Denmark
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IT infrastructure and security companies based in Denmark at a glance
As of Sep 27, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 29.0dCompany record updated
Median 72.0dHow 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 IT infrastructure and security 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 “IT infrastructure and security 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 IT infrastructure and security 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 IT infrastructure and security 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, 594 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 27, 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 IT infrastructure and security 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 IT infrastructure and security companies are there based in Denmark?
RevenueBase identified 239 IT infrastructure and security 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?
AEVEN, headquartered in Ballerup Capital Of Denmark, tops this list with the largest team on record.
Which city has the most IT infrastructure and security companies?
Copenhagen leads with 14 headquartered companies, followed by Aalborg (6) and Kobenhavn (6).
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 594 verified decision-maker contacts tracked across these 239 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 27, 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.
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