Company lists · Data refreshed September 2026

Top 25 Engineering consultancy firms based in Norway

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

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 492 companies tracked

RevenueBase identified 492 engineering consultancy firms headquartered in Norway as of September 2026 and tracks 13,905 professional contacts across them, including 4,707 with verified work emails and 462 with mobile numbers. Oslo is the largest hub.

This list covers engineering consultancy firms 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 27, 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 27, 2026 86% judged on-target in blind review

492Companies

13,905Contacts tracked

4,707Verified emails

462Mobile numbers

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The 25 largest engineering consultancy firms based in Norway

Ranked by team size

Top 25 of 492 engineering consultancy firms based in Norway, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to engineering consultancy firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Norconsult	Strong evidence	Sandvika, NorwayHQ checked Sep 27, 2026	5,001-10,000	3,555 contacts →
	Strong evidence “Norconsult is a multidisciplinary engineering and design consultancy, providing services to clients in the public and private sectors worldwide.” Source: RevenueBase Database · checked Sep 27, 2026
2	Multiconsult	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	1,001-5,000	2,553 contacts →
	Indirect evidence “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Source: RevenueBase Database · checked Sep 27, 2026
3	Asplan Viak AS	Indirect evidence	Sandvika, NorwayHQ checked Sep 27, 2026	1,001-5,000	1,074 contacts →
	Indirect evidence “Asplan Viak er et av Norges ledende rådgivnings-selskaper innen plan, arkitektur- og ingeniørfag.” Source: RevenueBase Database · checked Sep 27, 2026
4	AGR	Partial evidence	Oslo, NorwayHQ checked Sep 27, 2026	501-1,000	768 contacts →
	Partial evidence “AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…” Source: RevenueBase Database · checked Sep 27, 2026
5	NGI	Partial evidence	Oslo, NorwayHQ checked Sep 27, 2026	201-500	418 contacts →
	Partial evidence “NGI – The Norwegian Geotechnical Institute – is an independent research centre in the field of geotechnical engineering and the engineering geosciences.” Source: RevenueBase Database · checked Sep 27, 2026
6	WSP I Norge	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	201-500	375 contacts →
	Indirect evidence “WSP Norge er en av Norges ledende virksomheter innen profesjonell prosjektledelse.” Source: RevenueBase Database · checked Sep 27, 2026
7	Advansia	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	501-1,000	363 contacts →
	Indirect evidence “Advansia tilbyr et bredt spekter av tjenester innen prosjektledelse, digitalisering, sikkerhet og strategisk rådgivning for å møte våre kunders behov for en helhetlig tilnærming -…” Source: RevenueBase Database · checked Sep 27, 2026
8	Head Energy AS	Indirect evidence	Blomsterdalen, NorwayHQ checked Sep 27, 2026	501-1,000	243 contacts →
	Indirect evidence “Head Energy er et uavhengig ingeniørselskap med hovedtyngden innen energi, bygg & anlegg og konsulenttjenester.” Source: RevenueBase Database · checked Sep 27, 2026
9	Centerpoint	Indirect evidence	Trollåsen, NorwayHQ checked Sep 27, 2026	51-200	171 contacts →
	Indirect evidence “Centerpoint leverer høyt kvalifiserte konsulenter til store prosjekter innen Olje & Gass, Samferdsel & Infrastruktur og IT.” Source: RevenueBase Database · checked Sep 27, 2026
10	Opak AS	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	51-200	158 contacts →
	Indirect evidence “Vi vet at våre råd har stor betydning.” Source: RevenueBase Database · checked Sep 27, 2026
11	Dr.Techn. Olav Olsen AS	Partial evidence	Lysaker, NorwayHQ checked Sep 27, 2026	51-200	125 contacts →
	Partial evidence “Consulting, design and engineering for offshore, coastal and civil construction.” Source: RevenueBase Database · checked Sep 27, 2026
12	Novaform	Indirect evidence	Sandnes, NorwayHQ checked Sep 27, 2026	51-200	117 contacts →
	Indirect evidence “Novaform er et selskap bestående av konsulenter som utelukkende driver med prosjektadministrasjon.” Source: RevenueBase Database · checked Sep 27, 2026
13	Aas-Jakobsen AS	Partial evidence	Oslo, NorwayHQ checked Sep 27, 2026	51-200	115 contacts →
	Partial evidence “Aas-Jakobsen is a leading civil engineering consulting firm in Norway.” Source: RevenueBase Database · checked Sep 27, 2026
14	Proactima	Indirect evidence	Stavanger, NorwayHQ checked Sep 27, 2026	51-200	102 contacts →
	Indirect evidence “Proactima contributes to a safer and more sustainable future by being a leading management consulting company in Norway.” Source: RevenueBase Database · checked Sep 27, 2026
15	Future Technology	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	51-200	73 contacts →
	Indirect evidence “Future Technology - Part of Rejlers AS was founded in February 2011 and is located in Oslo, Norway.” Source: RevenueBase Database · checked Sep 27, 2026
16	Marstrand	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	51-200	70 contacts →
	Indirect evidence “Marstrand er en spisset virksomhet bestående av et konsulentselskap og et advokatfirma som sammen gir rådgivning til prosjektorientert virksomhet.” Source: RevenueBase Database · checked Sep 27, 2026
17	Prosjektil	Indirect evidence	Stavanger, NorwayHQ checked Sep 27, 2026	51-200	61 contacts →
	Indirect evidence “Prosjektil er et rådgivende ingeniørselskap innen bygg og anlegg.” Source: RevenueBase Database · checked Sep 27, 2026
18	Anlegg ØST Entreprenør	Indirect evidence	Lillehammer, NorwayHQ checked Sep 27, 2026	201-500	60 contacts →
	Indirect evidence “Anlegg Øst Entreprenør er en anleggsentreprenør i det nasjonale markedet med hovedfokus på Østlandet og administrasjon lokalisert på Lillehammer.” Source: RevenueBase Database · checked Sep 27, 2026
19	Maintech AS	Partial evidence	Trondheim, NorwayHQ checked Sep 27, 2026	51-200	55 contacts →
	Partial evidence “is an engineering company with specialist expertise in operations, maintenance, inspection, and materials technology.” Source: RevenueBase Database · checked Sep 27, 2026
20	Unitech Power Systems AS	Partial evidence	Stavanger, NorwayHQ checked Sep 27, 2026	11-50	54 contacts →
	Partial evidence “Unitech Power Systems is a leading consultancy and digital solutions provider within electrical power systems.” Source: RevenueBase Database · checked Sep 27, 2026
21	Vianova	Indirect evidence	Sandvika, NorwayHQ checked Sep 27, 2026	51-200	52 contacts →
	Indirect evidence “ViaNova er tre frittstående rådgivende ingeniørfirma med totalt 130 ansatte, som primært arbeider med samferdselsrelaterte oppgaver.” Source: RevenueBase Database · checked Sep 27, 2026
22	Semar AS	Strong evidence	Lysaker, NorwayHQ checked Sep 27, 2026	11-50	52 contacts →
	Strong evidence “Semar was founded in 1980 as an independent engineering consultant firm devoted primarily to the offshore oil and gas industry.” Source: RevenueBase Database · checked Sep 27, 2026
23	Necon AS	Partial evidence	Blomsterdalen, NorwayHQ checked Sep 27, 2026	201-500	52 contacts →
	Partial evidence “NECON AS is an engineering and consulting company that supply competence, products and solutions for the oil and gas industry, IT, the construction industry and Aqua industries.” Source: RevenueBase Database · checked Sep 27, 2026
24	Geovita AS	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	11-50	50 contacts →
	Indirect evidence “Geovita as er et rådgivende ingeniørfirma i geoteknikk, ingeniørgeologi og hydrogeologi.” Source: RevenueBase Database · checked Sep 27, 2026
25	Itech AS	Indirect evidence	Oslo, NorwayHQ checked Sep 27, 2026	51-200	49 contacts →
	Indirect evidence “Itech AS er et rådgivende ingeniørfirma med over 30 års erfaring innen tekniske anlegg og bærekraftige løsninger for byggherrer og totalentreprenører.” Source: RevenueBase Database · checked Sep 27, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: engineering consultancy firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names engineering consultancy firms.
Partial evidence: Its own public description names part of engineering consultancy firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering consultancy firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 492 engineering consultancy firms based in Norway

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Engineering consultancy firms based in Norway at a glance

As of Sep 27, 2026

33.9%Verified-email coverage

3.3%Mobile-number coverage

28.3Average contacts per company

1-10Median size (employees)

20.9%Largest-city concentration · Oslo

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

298

11-50

134

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 29.0d

2,7770–30

1,62731–60

14961–90

890–180

146180+

Company record updated

Median 93.0d

00–30

48631–60

5,29061–90

7,77090–180

359180+

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 engineering consultancy firms, 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 “engineering consultancy firms”. 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 engineering consultancy firms), 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 engineering consultancy firms, 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, 4,707 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 27, 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 engineering consultancy firms, 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 engineering consultancy firms are there based in Norway?

RevenueBase identified 492 engineering consultancy firms 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?

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

Which city has the most engineering consultancy firms?

Oslo leads with 103 headquartered companies, followed by Stavanger (23) and Bergen (18).

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 4,707 verified decision-maker contacts tracked across these 492 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 27, 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.