Company lists · Data refreshed September 2026

Top 25 Professional service firms based in Norway

RevenueBase identified 77 company matches for professional service firms associated with Norway as of September 2026 and tracks 5,417 professional contacts across them, including 933 with verified work emails. Oslo is the largest hub.

This list covers company matches for professional service 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 20, 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 20, 2026 How this list was built
77Companies
5,417Contacts tracked
933Verified emails
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The 25 largest professional service firms based in Norway

Ranked by team size
Top 25 of 77 company matches for professional service firms based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchOslo, NorwayHQ recorded Sep 20, 20261,001-5,0001,824 contacts →

Exact match

“PwC er et ledende globalt kompetansehus som bidrar med kunnskap, innsikt og verdiskapning.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchOslo, NorwayHQ recorded Sep 20, 20261,001-5,0001,530 contacts →

Exact match

“We see great value in having a local presence and roots, factors which enable us to work closely with our clients.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchOslo, NorwayHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
4Exact match3181, NorwayHQ recorded Sep 20, 202651-20037 contacts →

Exact match

“Kunnskapshuset BDT Viken har en bred kompetanseplattform innen regnskap, rådgiving og revisjon med til sammen 50 ansatte.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchFredrikstad, NorwayHQ recorded Sep 20, 202651-20033 contacts →

Exact match

“Vi i Wican samarbeider så tett med kundene at vi ofte oppleves som deres interne avdeling.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchOslo, NorwayHQ recorded Sep 20, 202611-5030 contacts →

Exact match

“PKF ReVisjon er en revisjons- og rådgivningsvirksomhet med klienter innen et bredt spekter av forretningsområder.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchSortland, NorwayHQ recorded Sep 20, 202611-5026 contacts →

Exact match

“Revicom AS er et spesialistmiljø på revisjon og økonomisk rådgivning.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchLysaker, NorwayHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“NITSCHKE består av revisjonsselskapet Nitschke AS, som drives av statsautoriserte revisorer, og det autoriserte regnskapsførerselskapet Nitschke Consult AS.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchBergen, NorwayHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“Vil du bli en del av laget?”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchOslo, NorwayHQ recorded Sep 20, 202611-5018 contacts →

Exact match

“Varder er et samarbeid mellom Advokatfirmaet Hulaas og HCA Revisjon & Rådgivning.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchSandnes, NorwayHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“Ligo Regnskap ble etablert i 2008 og har i dag rundt 30 ansatte og mer enn 300 kunder.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchOslo, NorwayHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“We are a strong, interdisciplinary team of auditors, accountants, lawyers and advisors.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchBergen, NorwayHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
14Exact matchTynset, NorwayHQ recorded Sep 20, 202611-5010 contacts →

Exact match

“Revisorkonsult leverer revisjon og konsulenttjenester for små og mellomstore bedrifter effektivt og til riktig pris.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchStavanger, NorwayHQ recorded Sep 20, 20261-109 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchSandefjord, NorwayHQ recorded Sep 20, 202611-509 contacts →

Exact match

“FGH er et kompetansehus innen revisjon, regnskap, transaksjoner, omorganiseringer, samt oppdrag for familieeide selskap som generasjonsskifte, arv, aksjonæravtale, strukturering…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchOslo, NorwayHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Berge & lundal revisjonsselskap holder til i Oslo sentrum.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchOslo, NorwayHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Vi tilbyr regnskapstjenester for flere bransjer, og har spesialiserte regnskapsførere som er klare til å bistå deg og din bedrift best mulig.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchMo I Rana, NorwayHQ recorded Sep 20, 20261-107 contacts →

Exact match

“Helgeland Revisjon AS er et kompetansehus som tilbyr tjenester innen revisjon og økonomisk rådgivning for små- og mellomstore bedrifter på Helgeland.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchÅfjord, NorwayHQ recorded Sep 20, 202611-507 contacts →

Exact match

“Åfjord Regnskap AS er et regnskapsbyrå med lang erfaring og bred kompetanse innen regnskap og økonomisk rådgivning for ulike næringer og bransjer.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchSandnes, NorwayHQ recorded Sep 20, 20261-105 contacts →

Exact match

“Idsø & Ravnås er et lokalt forankret revisjonsselskap som tilbyr revisjon- og rådgivningstjenester.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchStavanger, NorwayHQ recorded Sep 20, 20261-105 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchSøvik, NorwayHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
24Exact matchHaugesund, NorwayHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Regnskaps- og rådgivningsselskap med fokus på finans”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchStraume, NorwayHQ recorded Sep 20, 20261-104 contacts →

Exact match

“Target Consulting består av konsulenter med tung faglig kompetanse i mange bransjer.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 77 professional service firms based in Norway

See the full list, filter by size, metro and specialty, and access 933 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional service firms based in Norway at a glance

As of Sep 20, 2026
17.2%Verified-email coverage
70.4Average contacts per company
1-10Median size (employees)
31.2%Largest-city concentration · Oslo
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
22
51-200
4
1,001-5,000
3

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 77 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 “professional service 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 933 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 20, 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 “professional service firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional service firms are there based in Norway?

RevenueBase identified 77 company matches for professional service 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?

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

Which city has the most professional service firms?

Oslo leads with 24 company records, followed by Stavanger (4) and Sandefjord (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 933 professional contacts with verified work emails tracked across these 77 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 20, 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.