Company lists · Data refreshed September 2026

Top 25 Cybersecurity firms based in Norway

There are 57 cybersecurity firms headquartered in Norway (RevenueBase, September 2026). RevenueBase tracks 900 professional contacts across them, including 260 with verified work emails and 38 with mobile numbers. Oslo is the largest hub.

This list covers cybersecurity firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 1, 2026.

57Companies
900Contacts tracked
260Verified emails
38Mobile numbers
Unlock all 57 companies Free account · no credit card · 2 minutes

The 25 largest cybersecurity firms based in Norway

Ranked by team size
Top 25 of 57 cybersecurity firms based in Norway, ranked by team size, largest first. Data refreshed Sep 1, 2026. Evidence rates how directly each company's own description names cybersecurity firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContactsVerified emails
1
Netnordic NorwayIndirect evidence

“Hva er et selskaps viktigste konkurransefortrinn?”

Source: company website · checked Sep 1, 2026
Lysaker, Norway501-1,00022430
2
DefendableIndirect evidence

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

Source: company website · checked Sep 1, 2026
Fredrikstad, Norway51-2008540
3
PistachioIndirect evidence

“New threats demand new solutions.”

Source: company website · checked Sep 1, 2026
Oslo, Norway51-2008240
4
EMP SecureIndirect evidence

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

Source: company website · checked Sep 1, 2026
Nesttun, Norway51-200741
5
Omegapoint NorgeIndirect evidence

“IT-konsulentselskap”

Source: company website · checked Sep 1, 2026
Norway51-2005012
6
OMNYStrong evidence

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

Source: company website · checked Sep 1, 2026
Oslo, Norway11-504226
7
Sicra ASIndirect evidence

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

Source: company website · checked Sep 1, 2026
Oslo, Norway11-503623
8
Semac ASIndirect evidence

“Creating a Trusted and Secure Workforce.”

Source: company website · checked Sep 1, 2026
Oslo, Norway11-503315
9
Ivolv CybersecurityIndirect evidence

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

Source: company website · checked Sep 1, 2026
Sandnes, Norway11-502210
10
Bluetree ASIndirect evidence

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

Source: company website · checked Sep 1, 2026
Norway11-501810
11

“Exclusive Networks is a global trusted cybersecurity specialist for digital infrastructure helping to drive the transition to a totally trusted digital future for all people and…”

Source: company website · checked Sep 1, 2026
Fornebu, Norway11-501510
12
Eyasys ASIndirect evidence

“Eyasys provides complete solutions in the crossroads of security, software and hardware.”

Source: company website · checked Sep 1, 2026
Oslo, Norway11-501411
13
Norma CyberIndirect evidence

“The Nordic Maritime Cyber Resilience Centre - NORMA Cyber provides centralised functions and services for its members such as threat intelligence, incident and crisis response.”

Source: company website · checked Sep 1, 2026
Oslo, Norway11-50114
14
Borg ResearchIndirect evidence
Source: company website · checked Sep 1, 2026
Trondheim, Norway1-1094
15
Nemko System Sikkerhet ASIndirect evidence

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

Source: company website · checked Sep 1, 2026
Arendal, Norway1-1083
16
Houmb ASStrong evidence

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

Source: company website · checked Sep 1, 2026
Brumunddal, Norway1-1071
17
SorasecIndirect evidence

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

Source: company website · checked Sep 1, 2026
Oslo, Norway1-1064
18
Fence ASIndirect evidence

“Vår kjernevirksomhet er sikkerhetstesting og SOC-tjenester.”

Source: company website · checked Sep 1, 2026
Oslo, Norway1-1052
19
NettskredIndirect evidence

“Datakriminalitet er i sterk vekst, Google rapporterer om 180% økning i hackede nettsider.”

Source: company website · checked Sep 1, 2026
Asker, Norway1-1042
20
PainkillerStrong evidence

“Painkiller AS er et nystartet og norskeiet cybersecurityselskap med ambisjoner.”

Source: company website · checked Sep 1, 2026
Oslo, Norway11-5031
21
PrivicoreIndirect evidence

“Beyond Breach – Where Your Data Stays Yours, Forever Secure Once your device has been hacked, it can be continually exposed to security threats.”

Source: company website · checked Sep 1, 2026
Oslo, Norway11-5031
22
InfodeskIndirect evidence

“Infodesk is a specialized company for developing the next generation software, IT-Security and offers ethichal hackers to do security audits and pentesting.”

Source: company website · checked Sep 1, 2026
Sandefjord, Norway1-1021
23
Absec Absolute SecurityIndirect evidence

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

Source: company website · checked Sep 1, 2026
Oslo, Norway1-1021
24
SecunorIndirect evidence

“Secunor tilbyr en rekke tjenester innen cybersikkerhet og beredskap, fra teknisk/taktisk til strategisk nivå – før, under og etter krise.”

Source: company website · checked Sep 1, 2026
Oslo, Norway1-1021
25
Antares ASIndirect evidence

“Freelancer - Cyber and information security”

Source: company website · checked Sep 1, 2026
Oslo, Norway1-1021

Showing 25 of 57 cybersecurity firms based in Norway

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 260 reachable decision-makers.

Free account · no credit card

See all 57 companies

Cybersecurity firms based in Norway at a glance

As of Sep 1, 2026
1-10Median size (employees)
OsloLargest hub · 26 HQs
38Contacts with mobile numbers
Sep 1, 2026Data refreshed

Companies by employee count

1-10
33
11-50
18
51-200
5
501-1,000
1

Cybersecurity firms by metro

MetroCompanies
Cybersecurity firms in Oslo26
Cybersecurity firms in Fornebu3
Cybersecurity firms in Trondheim3
Cybersecurity firms in Fredrikstad2
Cybersecurity firms in Sandefjord2
Cybersecurity firms in Sandnes2
Cybersecurity firms in Bergen1

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 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: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies
Companies headquartered in Norway whose own description of what they do matches “cybersecurity 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 cybersecurity firms, 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 an evidence rating so you can judge each match yourself.
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, 260 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

How many cybersecurity firms are there based in Norway?

There are 57 cybersecurity firms headquartered in Norway as of September 2026 (RevenueBase).

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 firms?

Oslo leads with 26 headquartered companies, followed by Fornebu (3) and Trondheim (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 260 verified decision-maker contacts tracked across these 57 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.

Ready to reach these companies? Verified emails and direct dials for all 57 cybersecurity firms based in Norway. Start with a free account, no credit card.

Get the full list

Related lists

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.