Company lists · Data verified August 2026

Top 16 Constitutional law firms based in Norway

Name: Constitutional law firms based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 30 companies tracked

There are 30 constitutional law firms headquartered in Norway (RevenueBase, August 2026). RevenueBase tracks 228 professional contacts across them, including 68 with verified work emails and 9 with mobile numbers. Oslo is the largest hub.

This list covers constitutional law firms headquartered in 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.

30Companies

228Contacts tracked

68Verified emails

9Mobile numbers

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The 16 largest constitutional law firms based in Norway

Ranked by team size

Top 16 of 30 constitutional law firms based in 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	Harris Advokatfirma AS	Stryn	51-200	57	11
2	Advokatfirmaet Dehn	Sandvika	11-50	27	18
3	Advokatfirmaet Rogstad	Oslo	11-50	23	8
4	Advokatfirmaet Thallaug ANS	Brumunddal	11-50	17	8
5	Advokatfirmaet Bratlien	Oslo	11-50	16	5
6	Advokatene Berg Ditlev-Simonsen AS	n/a	1-10	11	4
7	Advokatfirmaet Robertsen AS	Oslo	11-50	10	1
8	HBL Advokatfirma Haraldsen Bydal LIE DA	Tonsberg	11-50	9	2
9	LAW Firm DE Vibe	Oslo	1-10	3	2
10	Advokatfirmaet Bjørge-Skaaraas & CO AS	Sarpsborg Viken	1-10	3	2
11	Hjelseth Advokatfirma	Oslo	1-10	2	2
12	Advokat Henjum AS	Oslo	1-10	2	1
13	Djerv Advokatfirma AS	Oslo	1-10	2	1
14	Advokatfirmaet Wold AS	Sortland	1-10	2	1
15	Advokatfirmaet Meland	Skien	1-10	1	1
16	Advokathuset Harstad	Harstad	n/a	1	1

Showing 16 of 30 constitutional law firms based in Norway

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Constitutional law firms based in Norway at a glance

As of Aug 28, 2026

1-10Median size (employees)

OsloLargest hub · 13 HQs

9Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Constitutional law firms by metro

Metro	Companies
Constitutional law firms in Oslo	13
Constitutional law firms in Bergen	1
Constitutional law firms in Stavanger	1
Constitutional law firms in Sandvika	1
Constitutional law firms in Harstad	1
Constitutional law firms in Brumunddal	1
Constitutional law firms in Stryn	1

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 “constitutional law firms”, with match quality audited by blind human judging, and headquartered in 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 constitutional law firms are there based in Norway?

There are 30 constitutional law firms headquartered in Norway as of August 2026 (RevenueBase).

What is the largest company on this list?

Harris Advokatfirma AS, headquartered in Stryn, tops this list with the largest team on record.

Which city has the most constitutional law firms?

Oslo leads with 13 headquartered companies, followed by Bergen (1) and Stavanger (1).

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 68 verified decision-maker contacts tracked across these 30 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.