Company lists · Data verified August 2026

Top 25 Construction consulting firms based in Norway

Name: Construction 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 255 companies tracked

There are 255 construction consulting firms headquartered in Norway (RevenueBase, August 2026). RevenueBase tracks 9,051 professional contacts across them, including 3,031 with verified work emails and 219 with mobile numbers. Oslo is the largest hub.

This list covers construction 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.

255Companies

9,051Contacts tracked

3,031Verified emails

219Mobile numbers

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The 25 largest construction consulting firms based in Norway

Ranked by team size

Top 25 of 255 construction 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	Norconsult	Sandvika	5,001-10,000	3,548	247
2	Multiconsult	Oslo	1,001-5,000	2,575	1,385
3	Asplan Viak AS	Sandvika Sandvika	1,001-5,000	1,072	754
4	Opak AS	Bergen	51-200	159	60
5	Dr.Techn. Olav Olsen AS	Bergen	51-200	125	39
6	Aas-Jakobsen AS	Oslo	51-200	125	12
7	Novaform	Forde	51-200	117	22
8	Prosjektil	Stavanger	51-200	61	44
9	Ingenia AS	Oslo	11-50	42	15
10	Indira	Tromso	51-200	41	22
11	Stabil AS	Revetal	11-50	38	1
12	Helgesen Tekniske Bygg AS	Valestrandsfossen	51-200	31	16
13	Dagfin Skaar AS	Kristiansand	11-50	28	13
14	Fokus Rådgivning AS	Sandvika	11-50	27	23
15	Stener Sørensen AS	Drammen	11-50	23	18
16	Aas-Jakobsen Trondheim AS	Trondheim	11-50	23	5
17	Strand AS	n/a	51-200	21	2
18	Meinich Arkitekter AS	Oslo	11-50	20	7
19	OSE Ingeniørkontor AS	Orsta Orsta	11-50	17	9
20	Prosjekt & Byggherre Consult AS PBC AS	Trondheim	11-50	15	11
21	EM Prosjekt	Oslo	11-50	15	9
22	Paxon AS	Haugesund	11-50	15	3
23	Riksheim	Alesund	11-50	14	8
24	Conturo AS	Stokke	11-50	14	6
25	Solli Arkitektur & Landskap	n/a	11-50	14	6

Showing 25 of 255 construction consulting firms based in Norway

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Construction consulting firms based in Norway at a glance

As of Aug 28, 2026

1-10Median size (employees)

OsloLargest hub · 50 HQs

219Contacts with mobile numbers

15Emails re-verified in last 30 days

Companies by employee count

1-10

163

11-50

51-200

1,001-5,000

5,001-10,000

Construction consulting firms by metro

Metro	Companies
Construction consulting firms in Oslo	50
Construction consulting firms in Bergen	12
Construction consulting firms in Stavanger	7
Construction consulting firms in Alesund	7
Construction consulting firms in Fredrikstad	6
Construction consulting firms in Tromso	5
Construction consulting firms in Trondheim	5

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 “construction 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; 15 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 construction consulting firms are there based in Norway?

There are 255 construction consulting firms headquartered in Norway as of August 2026 (RevenueBase).

What is the largest company on this list?

Norconsult, headquartered in Sandvika, tops this list with the largest team on record.

Which city has the most construction consulting firms?

Oslo leads with 50 headquartered companies, followed by Bergen (12) and Stavanger (7).

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 3,031 verified decision-maker contacts tracked across these 255 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.