Company lists · Data refreshed September 2026

Top 13 Marketplace SEO agencies based in Norway

RevenueBase identified 54 marketplace SEO agencies headquartered in Norway as of September 2026 and tracks 120 professional contacts across them, including 32 with verified work emails and 3 with mobile numbers. Oslo is the largest hub.

This list covers marketplace SEO agencies 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 5, 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 5, 2026 86% judged on-target in blind review
54Companies
120Contacts tracked
32Verified emails
3Mobile numbers
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The 13 largest marketplace SEO agencies based in Norway

Ranked by team size
Top 13 of 54 marketplace SEO agencies based in Norway, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to marketplace SEO agencies: 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 evidenceOlaf Helset Vei 5, NorwayHQ checked Sep 5, 202611-5014 contacts →

Indirect evidence

“I 1996 var vi et helt annet selskap.”

Source: RevenueBase Database · checked Sep 5, 2026
2Indirect evidenceOslo, NorwayHQ checked Sep 5, 202611-5013 contacts →

Indirect evidence

“Optimal Norge AS er et mediebyrå med fokus på resultater.”

Source: RevenueBase Database · checked Sep 5, 2026
3Indirect evidenceKristiansand, NorwayHQ checked Sep 5, 20261-106 contacts →

Indirect evidence

“Rank nr.1 AS sluser kunder inn til ditt nettsted.”

Source: RevenueBase Database · checked Sep 5, 2026
4Indirect evidenceOslo, NorwayHQ checked Sep 5, 20261-103 contacts →

Indirect evidence

“RePlan is a marketing company that solely focuses on small and medium sized businesses.”

Source: RevenueBase Database · checked Sep 5, 2026
5Indirect evidenceNorwayHQ checked Sep 5, 20261-102 contacts →

Indirect evidence

“Heisann!”

Source: RevenueBase Database · checked Sep 5, 2026
6Indirect evidenceLarvik, NorwayHQ checked Sep 5, 20261-102 contacts →

Indirect evidence

“Mediseo is a digital marketing and web development agency based in Oslo and Larvik.”

Source: RevenueBase Database · checked Sep 5, 2026
7Indirect evidenceFredrikstad, NorwayHQ checked Sep 5, 20261-102 contacts →

Indirect evidence

“MEDIAS AS er et webbyrå i lokalisert Fredrikstad som besitter mange års erfaring fra digitale medier, webutvikling, søkemotoroptimalisering og markedsføring på web og sosiale…”

Source: RevenueBase Database · checked Sep 5, 2026
8Indirect evidenceLillestrøm, NorwayHQ checked Sep 5, 20261-101 contacts →

Indirect evidence

“Vi er en ledende bedrift innen digital markedsføring og vi hjelper våre kunder med å nå nye høyder på nett.”

Source: RevenueBase Database · checked Sep 5, 2026
9Partial evidenceOslo, NorwayHQ checked Sep 5, 20261-101 contacts →

Partial evidence

“Search Planet AS er et norsk SEO-byrå.”

Source: RevenueBase Database · checked Sep 5, 2026
10Indirect evidenceStavanger, NorwayHQ checked Sep 5, 20261-101 contacts →

Indirect evidence

“Oppdag hvordan fremtidens reklamebyrå kan få din bedrift i gang med markedsføring på internett.”

Source: RevenueBase Database · checked Sep 5, 2026
11Indirect evidenceOslo, NorwayHQ checked Sep 5, 20261-101 contacts →

Indirect evidence

“Optigon er et spesialisert digitalt markedsføringsbyrå i Oslo.”

Source: RevenueBase Database · checked Sep 5, 2026
12Partial evidenceOslo, NorwayHQ checked Sep 5, 20261-101 contacts →

Partial evidence

“Fonvig Group is a specialized digital marketing and SEO agency based in Oslo, with roots in Denmark.”

Source: RevenueBase Database · checked Sep 5, 2026
13Indirect evidenceSkuderneshavn, NorwayHQ checked Sep 5, 20261-101 contacts →

Indirect evidence

“Aukar AS har til hensikt å skape optimal synlighet og vekst online for kunder via digital markedsføring og optimalisering av nettsteder for å imøtekomme en digital verden som er i…”

Source: RevenueBase Database · checked Sep 5, 2026

Showing 13 of 54 marketplace SEO agencies based in Norway

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Marketplace SEO agencies based in Norway at a glance

As of Sep 5, 2026
26.7%Verified-email coverage
2.5%Mobile-number coverage
2.2Average contacts per company
1-10Median size (employees)
38.9%Largest-city concentration · Oslo
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
5

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 marketplace SEO agencies, 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 “marketplace SEO agencies”. 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 marketplace SEO agencies), 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 marketplace SEO agencies, 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, 32 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 5, 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

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 marketplace SEO agencies, 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 marketplace SEO agencies are there based in Norway?

RevenueBase identified 54 marketplace SEO agencies 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?

Horn Media Group, headquartered in Oslo, tops this list with the largest team on record.

Which city has the most marketplace SEO agencies?

Oslo leads with 21 headquartered companies, followed by Bergen (3) and Frogner (2).

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 32 verified decision-maker contacts tracked across these 54 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 5, 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.