Company lists · Data refreshed September 2026

Top 24 Cybersecurity consultancy companies based in Norway

RevenueBase identified 56 cybersecurity consultancy companies headquartered in Norway as of September 2026 and tracks 1,152 professional contacts across them, including 336 with verified work emails and 62 with mobile numbers. Oslo is the largest hub.

This list covers cybersecurity consultancy companies headquartered in Norway, 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review
56Companies
1,152Contacts tracked
336Verified emails
62Mobile numbers
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The 24 largest cybersecurity consultancy companies based in Norway

Ranked by team size
Top 24 of 56 cybersecurity consultancy companies based in Norway, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity consultancy 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
1Indirect evidenceLysaker, Norway501-1,000224 contacts →

Indirect evidence

“Hva er et selskaps viktigste konkurransefortrinn?”

Source: RevenueBase Database · checked Sep 1, 2026
2Indirect evidenceSandefjord, Norway201-500197 contacts →

Indirect evidence

“Vi lager sikre IT-løsninger for små og mellomstore bedrifter.”

Source: RevenueBase Database · checked Sep 1, 2026
3Indirect evidenceFredrikstad, Norway51-20085 contacts →

Indirect evidence

“At Defendable we have made it our mission to help make you and your company just that: defendable.”

Source: RevenueBase Database · checked Sep 1, 2026
4Indirect evidenceNesttun, Norway51-20074 contacts →

Indirect evidence

“EMP Secure is full service IT-provider offering innovative IT technologies and cyber security solutions for businesses in various industries.”

Source: RevenueBase Database · checked Sep 1, 2026
5Indirect evidenceNorway51-20050 contacts →

Indirect evidence

“IT-konsulentselskap”

Source: RevenueBase Database · checked Sep 1, 2026
6Partial evidenceOslo, Norway11-5042 contacts →

Partial evidence

“Omny protects industrial companies against cybersecurity threats by providing both holistic visibility into Operational Technology (OT) environments.”

Source: RevenueBase Database · checked Sep 1, 2026
7Indirect evidenceOslo, Norway11-5036 contacts →

Indirect evidence

“Sicra ble grunnlagt i Norge i 2016 med en tydelig overbevisning: God forretning krever god sikkerhet.”

Source: RevenueBase Database · checked Sep 1, 2026
8Indirect evidenceKviteseid, Norway11-5026 contacts →

Indirect evidence

“NC-Spectrum er et IT-selskap med høy kompetanse innen nettverk og informasjonssikkerhet.”

Source: RevenueBase Database · checked Sep 1, 2026
9Indirect evidenceSandnes, Norway11-5022 contacts →

Indirect evidence

“ivolv is here to assist your organization in building effective protection and resilience against cyber attacks.”

Source: RevenueBase Database · checked Sep 1, 2026
10Indirect evidenceNorway11-5018 contacts →

Indirect evidence

“BlueTree is an award-winning technology company, experts in delivering managed services for enterprise companies.”

Source: RevenueBase Database · checked Sep 1, 2026
11Indirect evidenceArendal, Norway1-108 contacts →

Indirect evidence

“System Sikkerhet AS is the longest running purely Information security company in Norway.”

Source: RevenueBase Database · checked Sep 1, 2026
12Partial evidenceBrumunddal, Norway1-107 contacts →

Partial evidence

“Houmb AS brings broad industrial and academic cybersecurity experience.”

Source: RevenueBase Database · checked Sep 1, 2026
13Indirect evidenceOslo, Norway1-106 contacts →

Indirect evidence

“We are a team of certified security experts that are passionate about providing the best possible security service.”

Source: RevenueBase Database · checked Sep 1, 2026
14Indirect evidenceNorway11-505 contacts →

Indirect evidence

“Cloudworks er et konsulentselskap med IT-konsulenter som brenner for digital identitet og skysikkerhet.”

Source: RevenueBase Database · checked Sep 1, 2026
15Indirect evidenceStord Island, Norway1-104 contacts →

Indirect evidence

“Vi kan IT-sikkerhet og vi har lang erfaring i drift og support av IT-systemer for mindre og mellomstore bedrifter.”

Source: RevenueBase Database · checked Sep 1, 2026
16Indirect evidenceOslo, Norway1-103 contacts →

Indirect evidence

“Binary Security offers specialized services within information security, including penetration testing and application security.”

Source: RevenueBase Database · checked Sep 1, 2026
17Indirect evidenceOslo, Norway1-103 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
18Partial evidenceOslo, Norway1-102 contacts →

Partial evidence

“Cyber Security spesialists, reselling security products and deliver high-end security consultancy, and specialists monitor and reporting services.”

Source: RevenueBase Database · checked Sep 1, 2026
19Indirect evidenceOslo, Norway1-102 contacts →

Indirect evidence

“Freelancer - Cyber and information security”

Source: RevenueBase Database · checked Sep 1, 2026
20Partial evidenceNorway11-501 contacts →

Partial evidence

“Crosspoint Labs is a team of accomplished security professionals and subject matter experts in the domains of cybersecurity, privacy, identity and infrastructure software.”

Source: RevenueBase Database · checked Sep 1, 2026
21Indirect evidenceVinterbro, Norway1-101 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 1, 2026
22Indirect evidenceSandefjord, Norway1-101 contacts →

Indirect evidence

“Northwall informs, secures, and protects your company.”

Source: RevenueBase Database · checked Sep 1, 2026
23Partial evidenceOslo, Norway1-101 contacts →

Partial evidence

Cybersecurity advisory and consulting.”

Source: RevenueBase Database · checked Sep 1, 2026
24Indirect evidenceOslo, Norway1-101 contacts →

Indirect evidence

“Easywave is purposefully built to improve the digital security posture and handle security risks for small and medium businesses.”

Source: RevenueBase Database · checked Sep 1, 2026

Showing 24 of 56 cybersecurity consultancy companies based in Norway

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Cybersecurity consultancy companies based in Norway at a glance

As of Sep 1, 2026
29.2%Verified-email coverage
5.4%Mobile-number coverage
20.6Average contacts per company
1-10Median size (employees)
35.7%Largest-city concentration · Oslo
Sep 1, 2026Page data refreshed

Companies by employee count

1-10
35
11-50
14
51-200
4
201-500
1
501-1,000
1

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 cybersecurity consultancy 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 Norway whose own description of what they do matches “cybersecurity consultancy 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 cybersecurity consultancy 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 cybersecurity consultancy companies, and records with no verified work email. Companies headquartered outside Norway 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, 336 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 1, 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 cybersecurity consultancy 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 cybersecurity consultancy companies are there based in Norway?

RevenueBase identified 56 cybersecurity consultancy companies headquartered in Norway 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?

Netnordic Norway, headquartered in Lysaker, tops this list with the largest team on record.

Which city has the most cybersecurity consultancy companies?

Oslo leads with 20 headquartered companies, followed by Trondheim (3) and Fredrikstad (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 336 verified decision-maker contacts tracked across these 56 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 1, 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.