Company lists · Data refreshed September 2026

Top 25 Contract accounting firms based in Norway

RevenueBase identified 156 contract accounting firms headquartered in Norway as of September 2026 and tracks 698 professional contacts across them, including 241 with verified work emails. Oslo is the largest hub.

This list covers contract accounting 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, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review
156Companies
698Contacts tracked
241Verified emails
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The 25 largest contract accounting firms based in Norway

Ranked by team size
Top 25 of 156 contract accounting firms based in Norway, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to contract accounting firms: 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 evidenceStavanger, NorwayHQ checked Sep 27, 202611-5023 contacts →

Indirect evidence

“Jansson & Larsen Regnskap AS er et frittstående Stavangerbasert regnskapsbyrå som holder til sentralt i Løkkeveien.”

Source: RevenueBase Database · checked Sep 27, 2026
2Indirect evidenceTønsberg, NorwayHQ checked Sep 27, 202611-5022 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidenceØstensjø, NorwayHQ checked Sep 27, 202611-5021 contacts →

Indirect evidence

“Gruppering innen revisjon, regnskap og eiendomsforvaltning.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceUlsteinvik, NorwayHQ checked Sep 27, 202611-5019 contacts →

Partial evidence

“Accounting, Payroll & Business Counseling Situated in Ulsteinvik, Møre og Romsdal.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceOslo, NorwayHQ checked Sep 27, 20261-1017 contacts →

Indirect evidence

“Millor er et autorisert regnskapsbyrå med autoriserte regnskapsførere og økonomikonsulenter.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceSandnes, NorwayHQ checked Sep 27, 202611-5015 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
7Indirect evidenceOslo, NorwayHQ checked Sep 27, 202611-5015 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceSandefjord, NorwayHQ checked Sep 27, 202611-5014 contacts →

Indirect evidence

“HLO revisjon & rådgivning AS - revisjonsfirma lokalt i Sandefjord sentrum.”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceTrondheim, NorwayHQ checked Sep 27, 202611-5012 contacts →

Indirect evidence

“Nye" gamle Orkla Revisjon ønsker gamle og nye kunder velkommen til våre nye lokaler på Trekanten, Vestre Rosten 81 i Trondheim.”

Source: RevenueBase Database · checked Sep 27, 2026
10Indirect evidenceOslo, NorwayHQ checked Sep 27, 202611-5012 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceOslo, NorwayHQ checked Sep 27, 20261-1012 contacts →

Indirect evidence

“Randi er en legende i bransjen.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceOslo, NorwayHQ checked Sep 27, 202611-5011 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceGrålum, NorwayHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“Center Revisjon, din revisor i Østfold!”

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceKolsas, NorwayHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

“Vi er et revisjons- og regnskaps firma med kontor på Kolsås i Bærum og på Hamar.”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceSandefjord, NorwayHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

“Torp Økonomi AS er et selvstendig og lokaleid autorisert regnskapsbyrå beliggende sentralt i Sandefjord!”

Source: RevenueBase Database · checked Sep 27, 2026
16Indirect evidenceOslo, NorwayHQ checked Sep 27, 202611-5010 contacts →

Indirect evidence

“Regnskapshuset gir profesjonell bistand innen regnskap, lønn og økonomistyring for mindre og mellomstore bedrifter, slik at bedriftene kan frigjøre ressurser til andre oppgaver.”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceStavanger, NorwayHQ checked Sep 27, 20261-109 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceTananger, NorwayHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Kallesten Revisjon og Regnskap leverer komplette økonomitjenester.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceNorwayHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Hallingdal Økonomiservice AS er et autorisert regnskapsbyrå med 28 ansatte.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceLyngdal, NorwayHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

“Vi er totalleverandør av alt innen revisjon, rådgivning og regnskap.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceOslo, NorwayHQ checked Sep 27, 202611-508 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceBodø, NorwayHQ checked Sep 27, 202611-507 contacts →

Indirect evidence

“Bodø Revisjonskontor AS er et revisjonskontor med beliggende i Nordstrandveien 65 A i Bodø.”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceOslo, NorwayHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Alle Tall AS er forretningsfører og autorisert regnskapsførerselskap med kontor på Helsfyr i Oslo.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceOslo, NorwayHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“Ute etter å et ryddig og effektivt regnskap?”

Source: RevenueBase Database · checked Sep 27, 2026
25Indirect evidenceHamar, NorwayHQ checked Sep 27, 202611-506 contacts →

Indirect evidence

“Økonomipartner Hamar AS er et autorisert regnskapsbyrå som holder til i moderne lokaler på Tjuvholmen i Hamar.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 156 contract accounting firms based in Norway

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Contract accounting firms based in Norway at a glance

As of Sep 27, 2026
34.5%Verified-email coverage
4.5Average contacts per company
1-10Median size (employees)
23.7%Largest-city concentration · Oslo
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
115
11-50
39
51-200
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 156 companies.

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 contract accounting firms, 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 “contract accounting firms”. 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 contract accounting firms), 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 contract accounting 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 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, 241 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.

Contract accounting firms by metro

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 contract accounting firms, 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 contract accounting firms are there based in Norway?

RevenueBase identified 156 contract accounting firms 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?

Jansson & Larsen Regnskap AS, headquartered in Stavanger, tops this list with the largest team on record.

Which city has the most contract accounting firms?

Oslo leads with 37 headquartered companies, followed by Trondheim (6) and Alesund (5).

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 241 verified decision-maker contacts tracked across these 156 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.