Company lists · Data refreshed September 2026

Top 25 Iso audit consulting firms based in Norway

RevenueBase identified 80 company matches for iso audit consulting firms associated with Norway as of September 2026 and tracks 17,990 professional contacts across them, including 7,402 with verified work emails. Oslo is the largest hub.

This list covers company matches for iso audit consulting firms associated with Norway, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
80Companies
17,990Contacts tracked
7,402Verified emails
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The 25 largest iso audit consulting firms based in Norway

Ranked by team size
Top 25 of 80 company matches for iso audit consulting firms based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHøvik, NorwayHQ recorded Sep 28, 202610001+15,983 contacts →

Exact match

“DNV is the independent expert in risk management and assurance, operating in more than 100 countries.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchOslo, NorwayHQ recorded Sep 28, 20261,001-5,0001,498 contacts →

Exact match

“KPMG er mest kjent som revisorer, forretningskonsulenter og advokater, men vi er også mye mer.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchOslo, NorwayHQ recorded Sep 28, 202611-5085 contacts →

Exact match

“SOCO er et IT-konsulentselskap som jobber utelukkende med software testing.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchOslo, NorwayHQ recorded Sep 28, 202611-5042 contacts →

Exact match

“PROMIS is an independent consulting company, based in Norway.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchBryne, NorwayHQ recorded Sep 28, 202611-5041 contacts →

Exact match

“Compendia er et rådgivingsselskap med eksperter innen- HMS & Kvalitet - Ledelse & Personal Compendia skaper gode vaner.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchLillestrøm, NorwayHQ recorded Sep 28, 202611-5033 contacts →

Exact match

“SLM Revisjon AS is an authorized auditing firm with 32 employees, located in central Lillestrøm.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchTønsberg, NorwayHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“Want a local and independent auditing company with personal service, so ask us!”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchFrekhaug, NorwayHQ recorded Sep 28, 202611-5020 contacts →

Exact match

“Synfaring er et uavhengig sertifiseringsorgan som tilbyr et bredt spekter av tjenester til både nasjonale og internasjonale kunder.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchStavanger, NorwayHQ recorded Sep 28, 202611-5016 contacts →

Exact match

“Zirkel ble etablert i 2010 og er rådgiver for SMB-markedet innen stabstjenester.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchOslo, NorwayHQ recorded Sep 28, 202611-5012 contacts →

Exact match

“Unic Revisjon AS er et revisjonsselskap med bred erfaring som revisor innen ulike bransjer og konsulenttjenester.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchBergen, NorwayHQ recorded Sep 28, 20261-1012 contacts →

Exact match

“Wergeland Bedriftsutvikling skal være en sentral bidragsyter til at våre kunder utvikler og forbedrer seg innen sitt kvalitet- og HMS arbeid.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchOslo, NorwayHQ recorded Sep 28, 202611-5011 contacts →

Exact match

“Alpha revisjon AS is an accounting company based out of Holbergs gate 21, Oslo, Norway.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchPorsgrunn, NorwayHQ recorded Sep 28, 20261-1011 contacts →

Exact match

“Scandinavian Certification AS has its head office in Telemark, Norway.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchBergen, NorwayHQ recorded Sep 28, 202611-5010 contacts →

Exact match

“Collegium Revisjon AS er et moderne revisjons- og rådgivningsselskap i Bergen med lang erfaring og bred kompetanse.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchStavanger, NorwayHQ recorded Sep 28, 202611-508 contacts →

Exact match

“Xafe leverer alle typer tjenester innen HMS og kvalitet, enten med egne ressurser eller i kombinasjon med ressurser fra samarbeidspartnere.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchBergen, NorwayHQ recorded Sep 28, 20261-108 contacts →

Exact match

“Nordic Inspection Services is a premier engineering consultancy firm dedicated to providing cutting-edge inspection, testing, and compliance services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchStavanger, NorwayHQ recorded Sep 28, 20261-106 contacts →

Exact match

“Verify AS leverer akkrediterte systemsertifiseringer innen ISO 9001, 14001 og 45001.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchOslo, NorwayHQ recorded Sep 28, 20261-106 contacts →

Exact match

“Brevio’s mission is to create a better auditing experience.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchOslo, NorwayHQ recorded Sep 28, 202611-506 contacts →

Exact match

“Aspiria AS er et konsulentselskap som spesialiserer seg på prosjekt- og testledelse i IT-prosjekter.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchSvolvær, NorwayHQ recorded Sep 28, 202611-505 contacts →

Exact match

“Nordnorsk Revisjon AS er en frittstående revisjonsenhet med primært mål å levere revisjonstjenester av høy kvalitet.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchStavanger, NorwayHQ recorded Sep 28, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchBergen, NorwayHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Essentia ble etablert som et rådgivningsselskap i 2001, med spesielt fokus på kvalitet, miljø, revisjon og styringssystemer for mattrygghet og risikostyring (HACCP).”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchFredrikstad, NorwayHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Borg Revisjon AS ble stiftet i 2023.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchSøvik, NorwayHQ recorded Sep 28, 202611-504 contacts →

Exact match

“Nomia AS er et autorisert regnskapsførerselskap med kontor i Søvik, på Moa og på Harøy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchOslo, NorwayHQ recorded Sep 28, 20261-104 contacts →

Exact match

“3m3a • Intelligence measured With offices in Johannesburg and Oslo, 3m3a is a global specialist consultancy focused on independent auditing and evaluation of TV, radio, digital…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 80 iso audit consulting firms based in Norway

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Iso audit consulting firms based in Norway at a glance

As of Sep 28, 2026
41.1%Verified-email coverage
224.9Average contacts per company
1-10Median size (employees)
25.0%Largest-city concentration · Oslo
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
60
11-50
17
201-500
1
1,001-5,000
1
10001+
1

Email recency for this list is measured worldwide rather than for Norway, so it is reported there. Company counts and contact totals on this page are exact for Norway, over 80 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Norway whose business descriptions match “iso audit consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 7,402 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “iso audit consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many iso audit consulting firms are there based in Norway?

RevenueBase identified 80 company matches for iso audit consulting firms associated with Norway as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

DNV tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most iso audit consulting firms?

Oslo leads with 20 company records, followed by Stavanger (4) and Bergen (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 7,402 professional contacts with verified work emails tracked across these 80 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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.