Company lists · Data refreshed September 2026

Top 21 Enterprise transformation advisors based in Oslo, Norway

RevenueBase identified 144 enterprise transformation advisors headquartered in Oslo, Norway as of September 2026 and tracks 20,913 professional contacts across them, including 9,189 with verified work emails and 2,089 with mobile numbers. Oslo is the largest hub.

This list covers enterprise transformation advisors 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 12, 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 12, 2026 86% judged on-target in blind review
144Companies
20,913Contacts tracked
9,189Verified emails
2,089Mobile numbers
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The 21 largest enterprise transformation advisors based in Oslo, Norway

Ranked by team size
Top 21 of 144 enterprise transformation advisors based in Oslo, Norway, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise transformation advisors: 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 evidenceOslo, NorwayHQ checked Sep 12, 2026501-1,000291 contacts →

Indirect evidence

“Experis is the global leader in consulting services, project solutions and managed service”

Source: RevenueBase Database · checked Sep 12, 2026
2Indirect evidenceOslo, NorwayHQ checked Sep 12, 2026201-500148 contacts →

Indirect evidence

“We are Forte, a European consulting company.”

Source: RevenueBase Database · checked Sep 12, 2026
3Indirect evidenceOslo, NorwayHQ checked Sep 12, 202651-200101 contacts →

Indirect evidence

“Med ledende teknologi rådgir, designer, tester og utvikler vi innovative digitale løsninger.”

Source: RevenueBase Database · checked Sep 12, 2026
4Indirect evidenceOslo, NorwayHQ checked Sep 12, 202651-200100 contacts →

Indirect evidence

“Vi er kloke konsulenter som bryr oss.”

Source: RevenueBase Database · checked Sep 12, 2026
5Indirect evidenceOslo, NorwayHQ checked Sep 12, 202651-20096 contacts →

Indirect evidence

“Sprint er et annerledes konsulentselskap hvor entreprenørskap møter management consulting.”

Source: RevenueBase Database · checked Sep 12, 2026
6Indirect evidenceOslo, NorwayHQ checked Sep 12, 202651-20061 contacts →

Indirect evidence

“Trifid is a consulting company that contributes to the modernization, change and development of our clients at the intersection between technology and organization.”

Source: RevenueBase Database · checked Sep 12, 2026
7Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5050 contacts →

Indirect evidence

“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…”

Source: RevenueBase Database · checked Sep 12, 2026
8Indirect evidenceOslo, NorwayHQ checked Sep 12, 202651-20045 contacts →

Indirect evidence

“Vi er 50 konsulenter som i snitt har over 20 års erfaring fra å lede store, komplekse IT-prosjekter.”

Source: RevenueBase Database · checked Sep 12, 2026
9Indirect evidenceOslo, NorwayHQ checked Sep 12, 202651-20043 contacts →

Indirect evidence

“At Avinto, we’re not just another consultancy-we’re a team of problem solvers, builders, and innovators.”

Source: RevenueBase Database · checked Sep 12, 2026
10Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5034 contacts →

Indirect evidence

“Clave er et IT konsulentselskap med flinke folk som bryr seg om din forretning.”

Source: RevenueBase Database · checked Sep 12, 2026
11Partial evidenceOslo, NorwayHQ checked Sep 12, 202611-5034 contacts →

Partial evidence

“Tellmann Executive Advisors er Norges fremste uavhengige rådgivermiljø innen fornyelse av ERP, forretningsløsninger og organisering av IT.”

Source: RevenueBase Database · checked Sep 12, 2026
12Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5030 contacts →

Indirect evidence

“Styrmand AS has management and delivery competencies from Norway’s largest IT projects and environments.”

Source: RevenueBase Database · checked Sep 12, 2026
13Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5029 contacts →

Indirect evidence

“Sysint AS is a Norwegian consulting company that provides business and technology consulting to private and public companies.”

Source: RevenueBase Database · checked Sep 12, 2026
14Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5029 contacts →

Indirect evidence

“Alv AS is an IT consultant company focusing on system development expertise.”

Source: RevenueBase Database · checked Sep 12, 2026
15Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5026 contacts →

Indirect evidence

“Differ is a Nordic management consulting firm helping companies achieve market impact through next generation consultancy services - Pragmatic Strategy Development and Innovative…”

Source: RevenueBase Database · checked Sep 12, 2026
16Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5023 contacts →

Indirect evidence

“inFuture er et ledende rådgivningsmiljø innen strategi og innovasjon, med spesielt fokus på forretningsutvikling for tjenesteytende virksomheter.”

Source: RevenueBase Database · checked Sep 12, 2026
17Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5022 contacts →

Indirect evidence

“Konsulentselskapet Ensō AS er et Oslo-basert konsulentselskap med spesialistkompetanse innen Microsoft.Net, Java og prosjektledelse.”

Source: RevenueBase Database · checked Sep 12, 2026
18Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5020 contacts →

Indirect evidence

“tba_ is a small growth and strategy consultancy with broad reach.”

Source: RevenueBase Database · checked Sep 12, 2026
19Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5020 contacts →

Indirect evidence

“Vektor Consulting er et ungt selskap med lang erfaring.”

Source: RevenueBase Database · checked Sep 12, 2026
20Indirect evidenceOslo, NorwayHQ checked Sep 12, 202611-5018 contacts →

Indirect evidence

“code11 is a boutique design, development and consultancy company based in Oslo, Bucharest and Berlin.”

Source: RevenueBase Database · checked Sep 12, 2026
21Partial evidenceOslo, NorwayHQ checked Sep 12, 202611-5017 contacts →

Partial evidence

“At Vali, we've been driving the digital transformation of the healthcare sector since 2007, with a clear mission: to enable safer, more efficient, and more connected patient…”

Source: RevenueBase Database · checked Sep 12, 2026

Showing 21 of 144 enterprise transformation advisors based in Oslo, Norway

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Enterprise transformation advisors based in Oslo, Norway at a glance

As of Sep 12, 2026
43.9%Verified-email coverage
10.0%Mobile-number coverage
145.2Average contacts per company
1-10Median size (employees)
95.8%Largest-city concentration · Oslo
Sep 12, 2026Page data refreshed

Companies by employee count

1-10
86
11-50
39
51-200
12
201-500
3
501-1,000
2
1,001-5,000
1
10001+
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

Company record updated

Median 63.0d

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 enterprise transformation advisors, 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 Oslo, Norway whose own description of what they do matches “enterprise transformation advisors”. 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 enterprise transformation advisors), 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 enterprise transformation advisors, 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 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, 9,189 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 12, 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.

Enterprise transformation advisors by metro in Norway

  • Enterprise transformation advisors in Oslo138

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 enterprise transformation advisors, 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 enterprise transformation advisors are there based in Oslo, Norway?

RevenueBase identified 144 enterprise transformation advisors headquartered in Oslo, 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?

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

Which city has the most enterprise transformation advisors?

Oslo leads with 138 headquartered companies, followed by Stavanger (14) and Bergen (13).

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 9,189 verified decision-maker contacts tracked across these 144 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 12, 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.