Company lists · Data verified August 2026

Top 25 Environmental consulting firms based in Norway

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 92 companies tracked

There are 92 environmental consulting firms headquartered in Norway (RevenueBase, August 2026). RevenueBase tracks 3,183 professional contacts across them, including 1,629 with verified work emails and 75 with mobile numbers. Oslo is the largest hub.

This list covers environmental consulting 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.

92Companies

3,183Contacts tracked

1,629Verified emails

75Mobile numbers

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The 25 largest environmental consulting firms based in Norway

Ranked by team size

Top 25 of 92 environmental consulting 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	Multiconsult	Oslo	1,001-5,000	2,575	1,385
2	Akvaplan-Niva	Alta	51-200	90	4
3	ENTRO	Trondheim	51-200	51	28
4	VSO Consulting VSÓ Ráðgjöf	Jessheim	51-200	47	33
5	Fokus Rådgivning AS	Sandvika	11-50	27	23
6	Evotek AS	Lysaker	11-50	22	5
7	Ecofact	Vestby	11-50	17	9
8	RK Tekniske AS	Stavanger	11-50	15	5
9	Riksheim	Alesund	11-50	14	8
10	Terraplan AS	Drammen	11-50	13	11
11	Climatepoint	Oslo	1-10	13	4
12	Bergfald Miljørådgivere	Skien	1-10	12	9
13	Forcit Consulting AS	Lillestrom	11-50	11	6
14	Huslid Consult AS	Oslo	1-10	10	6
15	Structor Tekniske Systemer AS	Oslo	1-10	9	9
16	Miljøfaglig Utredning AS	Oslo	11-50	8	6
17	Rådgivende Biologer	Bergen	11-50	8	3
18	VA Visjon	Oslo	1-10	7	5
19	Nomiko AS	Oslo	1-10	6	6
20	Miljovakta AS	n/a	1-10	6	6
21	AVEC	Oslo	1-10	6	3
22	Byggtakst Nord AS	Tromso	1-10	4	4
23	Energiråd AS	Alesund	1-10	4	3
24	Revise Norsk Gjenvinning	Oslo	1-10	4	2
25	Geoteknikk AS	Sarpsborg	1-10	4	1

Showing 25 of 92 environmental consulting firms based in Norway

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Environmental consulting firms based in Norway at a glance

As of Aug 28, 2026

1-10Median size (employees)

OsloLargest hub · 30 HQs

75Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

1,001-5,000

5,001-10,000

Environmental consulting firms by metro

Metro	Companies
Environmental consulting firms in Oslo	30
Environmental consulting firms in Trondheim	4
Environmental consulting firms in Bergen	4
Environmental consulting firms in Stavanger	3
Environmental consulting firms in Drammen	3
Environmental consulting firms in Lysaker	3
Environmental consulting firms in Bodo	3

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 “environmental consulting 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 environmental consulting firms are there based in Norway?

There are 92 environmental consulting firms headquartered in Norway as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most environmental consulting firms?

Oslo leads with 30 headquartered companies, followed by Trondheim (4) and Bergen (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 1,629 verified decision-maker contacts tracked across these 92 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.