Company lists · Data refreshed September 2026

Top 25 Impact consulting firms based in Oslo, Norway

Name: Impact consulting firms based in Oslo, Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 216 companies tracked

RevenueBase identified 216 company matches for impact consulting firms associated with Oslo, Norway as of September 2026 and tracks 3,582 professional contacts across them, including 769 with verified work emails. Across Norway, Oslo is the largest hub for this category.

This list covers company matches for impact consulting firms associated with Oslo, 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 30, 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 30, 2026 How this list was built

216Companies

3,582Contacts tracked

769Verified emails

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The 25 largest impact consulting firms based in Oslo, Norway

Ranked by team size

Top 25 of 216 company matches for impact consulting firms based in Oslo, Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Kpmg Norway	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	1,001-5,000	1,498 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 30, 2026 · View company records in RevenueBase
2	Arkwright Consulting	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	51-200	156 contacts →
	Exact match “Arkwright is a Northern European top-tier management consulting firm with offices in Oslo, Stockholm, Hamburg, and London.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	FORTE	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	201-500	148 contacts →
	Exact match “We are Forte, a European consulting company.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Gritera	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	51-200	118 contacts →
	Exact match “Vi gir våre kunder verdi fra første dag, og trygghet gjennom hele oppdraget.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Sprint Consulting	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	51-200	96 contacts →
	Exact match “Sprint er et annerledes konsulentselskap hvor entreprenørskap møter management consulting.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Oslo Economics	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	51-200	84 contacts →
	Exact match “Oslo Economics er et av landets ledende fagmiljøer innen samfunnsøkonomisk rådgivning.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Trifid	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	51-200	61 contacts →
	Exact match “Trifid is a consulting company that contributes to the modernization, change and development of our clients at the intersection between technology and organization.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Corporate Communications	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	54 contacts →
	Exact match “Vi er et lag med dyktige og hyggelige mennesker som forstår forretning og strategi, og som gir råd basert på analyse, erfaring og samfunnsforståelse.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Uniconsult AS	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	51-200	51 contacts →
	Exact match “Uniconsult ble etablert i 1998 og er et uavhengig konsulentselskap som består av og rekrutterer de beste konsulentene innenfor sine tjenesteområder.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Varde Hartmark	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	50 contacts →
	Exact match “Varde Hartmark er et resultat av at Norges eldste management consulting selskap, Hartmark Consulting, har funnet sammen med Norges yngste og sterkest voksende selskap, Varde…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Agenda Kaupang AS	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	47 contacts →
	Exact match “Agenda Kaupang AS er et selveid konsulentselskap og blant de fremste rådgivingsselskapene som bidrar til omstilling og utvikling i offentlig sektor.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Habberstad AS	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	47 contacts →
	Exact match “Habberstad is proud to be one of the Norway's oldest consulting company, with over 80 years experience.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Styrmand AS	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	30 contacts →
	Exact match “Styrmand AS has management and delivery competencies from Norway’s largest IT projects and environments.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Differ Strategy Consulting	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	26 contacts →
	Exact match “Differ is a Nordic management consulting firm helping companies achieve market impact through next generation consultancy services - Pragmatic Strategy Development and Innovative…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Infuture	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	23 contacts →
	Exact match “inFuture er et ledende rådgivningsmiljø innen strategi og innovasjon, med spesielt fokus på forretningsutvikling for tjenesteytende virksomheter.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Cardo Partners	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	22 contacts →
	Exact match “Trust.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Sustevo	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	21 contacts →
	Exact match “Accelerating Sustainable Evolution – Join Us on Our Journey!” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Beyond Strategy Consulting	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	21 contacts →
	Exact match “Din samarbeidspartner for å tydeliggjøre ambisjon og retning, forme strategi og sikre gjennomføringskraft som realiserer ambisiøse mål.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	TBA	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	20 contacts →
	Exact match “tba_ is a small growth and strategy consultancy with broad reach.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Vektor Consulting	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	20 contacts →
	Exact match “Vektor Consulting er et ungt selskap med lang erfaring.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	KS Konsulent	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	17 contacts →
	Exact match “Vi leverer etterspurte rådgivningstjenester til kommuner, fylkeskommuner og kommunale bedrifter i tråd med KS' satsingsområder.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Involved	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	17 contacts →
	Exact match “Involved leverer førsteklasses konsulenttjenester og rådgivning, innen ITB, systematisk ferdigstillelse, bærekraft og teknisk prosjekt- og prosjekteringsledelse.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Zebra Consulting	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	16 contacts →
	Exact match “Zebra is a newly established IT Consulting house with a team of experts in Data, Business Apps, and Security.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	ÆRA Strategic Innovation	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	15 contacts →
	Exact match “ÆRA is a strategic innovation consultancy that works interdisciplinary to consolidate the interests of business with those of people and our planet.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	ALTRO	Exact match	Oslo, NorwayHQ recorded Sep 30, 2026	11-50	15 contacts →
	Exact match “Vi er et konsulentselskap som leverer spesialister innen data og analyse.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “impact consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 216 impact consulting firms based in Oslo, Norway

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Impact consulting firms based in Oslo, Norway at a glance

As of Sep 30, 2026

21.5%Verified-email coverage

16.6Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

164

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole Norway list rather than for Oslo, so it is reported there. Company counts and contact totals on this page are exact for Oslo, over 216 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 Oslo, Norway whose business descriptions match “impact 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 769 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 30, 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 “impact consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many impact consulting firms are there based in Oslo, Norway?

RevenueBase identified 216 company matches for impact consulting firms associated with Oslo, 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?

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

Which city in Norway has the most impact consulting firms?

Oslo leads Norway with 216 company records, followed by Bergen (23) and Trondheim (20).

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 769 professional contacts with verified work emails tracked across these 216 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 30, 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.