Company lists · Data refreshed August 2026

Top 25 Accounting consulting firms based in Oslo, Norway

There are 100 accounting consulting firms headquartered in Oslo, Norway (RevenueBase, August 2026). RevenueBase tracks 4,250 professional contacts across them, including 914 with verified work emails and 131 with mobile numbers. Oslo is the largest hub.

This list covers accounting consulting firms headquartered in Oslo, 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 August 30, 2026.

100Companies
4,250Contacts tracked
914Verified emails
131Mobile numbers
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The 25 largest accounting consulting firms based in Oslo, Norway

Ranked by team size
Top 25 of 100 accounting consulting firms based in Oslo, Norway, ranked by team size, largest first. Data refreshed Aug 30, 2026. Evidence rates how directly each company's own description names accounting consulting 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
PWC NorwayIndirect evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway1,001-5,0001,8231
2
BDO NorgeIndirect evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway1,001-5,0001,538721
3
Forvis Mazars In NorwayIndirect evidence

“Vi er et internasjonalt integrert partnerskap, med spesialisering innen revisjon, skatt, rådgivning og advokattjenester.”

Source: company website · checked Aug 30, 2026
Oslo, Norway51-2007636
4
PKF Revisjon ASIndirect evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway11-502923
5
Econpartner ASIndirect evidence

“EconPartner was founded in 1961 and we have built up unique expertise in the years since.”

Source: company website · checked Aug 30, 2026
Oslo, Norway11-502719
6
VarderIndirect evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway11-50182
7
MillorIndirect evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway1-10165
8

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

Source: company website · checked Aug 30, 2026
Oslo, Norway11-50155
9
Baker Tilly Grimsrud & COPartial evidence

“BAKER TILLY GRIMSRUD & CO is an audit and accounting company based out of Postboks 606 Skøyen, OSLO, Norway.”

Source: company website · checked Aug 30, 2026
Oslo, Norway11-50151
10
Unic Revisjon ASIndirect evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway11-50128
11
Amon Regnskap Oslo ASIndirect evidence

“Regnskap og bilagsføring, Lønnstjenester, Fakturering, Analyse og rapportering I en verden hvor tid er penger, er det viktigere enn noensinne for små og mellomstore bedrifter å ha…”

Source: company website · checked Aug 30, 2026
Oslo, Norway1-10123
12
Alpha Revisjon ASPartial evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway11-50119
13
Safe AccountingIndirect evidence

“Regnskapsbyrå, bokføring, rapportering, analyser, økonomisk rådgivning, skatt og governance.”

Source: company website · checked Aug 30, 2026
Oslo, Norway1-10112
14
Regnskapshuset ASIndirect 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: company website · checked Aug 30, 2026
Oslo, Norway11-50104
15
Norsk RegnskapIndirect evidence

“Norsk Regnskap er en proaktiv samarbeidspartner i forhold til våre kunders forretning og virke.”

Source: company website · checked Aug 30, 2026
Oslo, Norway11-5096
16

“Axera Business Management er et autorisert regnskapsførerselskap som skal tilby high end forretningsførsel.”

Source: company website · checked Aug 30, 2026
Oslo, Norway11-5092
17

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

Source: company website · checked Aug 30, 2026
Oslo, Norway11-5087
18
To Streker Økonomi ASIndirect evidence

“To Streker Økonomi AS ble etablert i 2014 med hensikten å kunne tilby kunder og partnere regnskapstjenester og rådgivning med høy kvalitet.”

Source: company website · checked Aug 30, 2026
Oslo, Norway1-1087
19
Revisorgruppen ASIndirect evidence

“Revisorgruppen er en landsdekkende kjede av 14 selvstendige revisjonskontorer.”

Source: company website · checked Aug 30, 2026
Oslo, Norway51-20085
20
Balanco Accounting ASPartial evidence

“Balanco Accounting AS er et autorisert regnskapsbyrå som er medlem av RN og tilbyr tjenester innenfor regnskap og rådgivning.”

Source: company website · checked Aug 30, 2026
Oslo, Norway1-1085
21
On Time RegnskapIndirect evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway11-5081
22
Alle TallIndirect evidence

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

Source: company website · checked Aug 30, 2026
Oslo, Norway1-1074
23
Boox ASIndirect evidence

“Ute etter å et ryddig og effektivt regnskap?”

Source: company website · checked Aug 30, 2026
Oslo, Norway1-1064
24

“NRP Business Management is an authorised accounting firm who provides services such as corporate management, accountancy and tax and corporate advisory to the projects and funds…”

Source: company website · checked Aug 30, 2026
Oslo, Norway11-5062
25
Leija ASIndirect evidence

“Her er Leija!”

Source: company website · checked Aug 30, 2026
Oslo, Norway1-1053

Showing 25 of 100 accounting consulting firms based in Oslo, Norway

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Accounting consulting firms based in Oslo, Norway at a glance

As of Aug 30, 2026
1-10Median size (employees)
OsloLargest hub · 100 HQs
131Contacts with mobile numbers
Aug 30, 2026Data refreshed

Companies by employee count

1-10
60
11-50
28
51-200
5
201-500
2
501-1,000
1
1,001-5,000
2

Accounting consulting firms by metro in Norway

MetroCompanies
Accounting consulting firms in Oslo100
Accounting consulting firms in Trondheim18
Accounting consulting firms in Drammen12
Accounting consulting firms in Bergen12
Accounting consulting firms in Sandnes11
Accounting consulting firms in Stavanger11
Accounting consulting firms in Sandefjord11

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 accounting consulting 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 Oslo, Norway whose own description of what they do matches “accounting consulting 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 accounting consulting firms, and records with no verified work email. Companies headquartered outside Oslo 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, 914 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 August 30, 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 accounting consulting firms are there based in Oslo, Norway?

There are 100 accounting consulting firms headquartered in Oslo, Norway as of August 2026 (RevenueBase).

What is the largest company on this list?

PWC Norway, headquartered in Oslo, tops this list with the largest team on record.

Which city has the most accounting consulting firms?

Oslo leads with 100 headquartered companies, followed by Trondheim (18) and Drammen (12).

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 914 verified decision-maker contacts tracked across these 100 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 30, 2026.

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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.