Company lists · Data verified August 2026

Top 24 B2B marketing consulting agencies based in Oslo, Norway

Name: B2B marketing consulting agencies based in Oslo, Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 97 companies tracked

There are 97 B2B marketing consulting agencies headquartered in Oslo, Norway (RevenueBase, August 2026). RevenueBase tracks 791 professional contacts across them, including 169 with verified work emails and 27 with mobile numbers. Oslo is the largest hub.

This list covers B2B marketing consulting agencies headquartered in Oslo, Norway, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

97Companies

791Contacts tracked

169Verified emails

27Mobile numbers

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The 24 largest B2B marketing consulting agencies based in Oslo, Norway

Ranked by team size

Top 24 of 97 B2B marketing consulting agencies based in Oslo, Norway, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	BLOOM	Oslo	51-200	78	21
2	Innovation Support AS	Oslo	11-50	48	16
3	Markedssjefene AS	Oslo	11-50	42	23
4	Inbound	Oslo	11-50	30	13
5	Differ Strategy Consulting	Oslo	11-50	26	18
6	Fullstakk	Oslo	11-50	24	6
7	Inevo AS	Oslo	11-50	23	13
8	Semway	Oslo	11-50	18	8
9	Frank & Dick	Oslo	11-50	15	13
10	Salgia AS	Oslo	1-10	7	4
11	Gründerbox	Oslo	1-10	7	3
12	Isbre Media AS	Oslo	11-50	7	1
13	In Sight AS	Oslo	11-50	6	3
14	NARD	Oslo	1-10	6	2
15	Batera Nordic	Oslo	1-10	5	4
16	Isipisi	Oslo	1-10	3	3
17	Reprise Digital Norway	Oslo	11-50	3	2
18	Replan AS	Oslo	1-10	3	2
19	Smarketing AS	Oslo	1-10	3	2
20	VIVA	Oslo	11-50	2	1
21	Z Media	Oslo	1-10	2	1
22	VMR AS	Oslo	1-10	1	1
23	Plot Market & Strategy	Oslo	1-10	1	1
24	Skroll AS	Oslo	1-10	1	1

Showing 24 of 97 B2B marketing consulting agencies based in Oslo, Norway

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B2B marketing consulting agencies based in Oslo, Norway at a glance

As of Aug 28, 2026

1-10Median size (employees)

OsloLargest hub · 97 HQs

27Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

B2B marketing consulting agencies by metro in Norway

Metro	Companies
B2B marketing consulting agencies in Oslo	97
B2B marketing consulting agencies in Bergen	5
B2B marketing consulting agencies in Trondheim	4
B2B marketing consulting agencies in Stavanger	4
B2B marketing consulting agencies in Sandefjord	4
B2B marketing consulting agencies in Fredrikstad	3
B2B marketing consulting agencies in Sarpsborg	2

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “B2B marketing consulting agencies”, with match quality audited by blind human judging, and headquartered in Oslo, Norway.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many B2B marketing consulting agencies are there based in Oslo, Norway?

There are 97 B2B marketing consulting agencies headquartered in Oslo, Norway as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most B2B marketing consulting agencies?

Oslo leads with 97 headquartered companies, followed by Bergen (5) and Trondheim (4).

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 169 verified decision-maker contacts tracked across these 97 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 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.