Company lists · Data refreshed September 2026
Top 25 Engineering consulting firms based in Oslo, Norway
RevenueBase identified 88 engineering consulting firms headquartered in Oslo, Norway as of September 2026 and tracks 4,859 professional contacts across them, including 2,391 with verified work emails and 140 with mobile numbers. Oslo is the largest hub.
This list covers engineering consulting firms headquartered in Oslo, 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 12, 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.
The 25 largest engineering consulting firms based in Oslo, Norway
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,553 contacts → | ||||
Partial evidence “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 3 | 375 contacts → | ||||
Indirect evidence “WSP Norge er en av Norges ledende virksomheter innen profesjonell prosjektledelse.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 5 | 158 contacts → | ||||
Indirect evidence “Vi vet at våre råd har stor betydning.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 6 | 115 contacts → | ||||
Strong evidence “Aas-Jakobsen is a leading civil engineering consulting firm in Norway.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 9 | 50 contacts → | ||||
Indirect evidence “Geovita as er et rådgivende ingeniørfirma i geoteknikk, ingeniørgeologi og hydrogeologi.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 12, 2026Thanks. The Data Team will review it. | |||||
| 11 | 42 contacts → | ||||
Indirect evidence “Ingenia tilbyr rådgivende tjenester innen energi- og klima-teknikk, VA, VVS, bygningsfysikk, brannteknikk og ITB.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 12 | 38 contacts → | ||||
Indirect evidence “Magna har siden 2019 bygget et miljø med gode kollegaer og sterk kompetanse innen prosjektledelse.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 13 | 37 contacts → | ||||
Indirect evidence “SYSTRA Norge er en del av SYSTRA Group, et av verdens ledende konsulentselskaper.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 14 | 23 contacts → | ||||
Partial evidence “BEIN represents excellence in adaptive Design and Engineering.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 15 | 21 contacts → | ||||
Indirect evidence “Rådgivende Ingeniørers Forening (RIF) er en frittstående bransjeforening for kunnskapsbedrifter med virksomhet innenfor rådgivning, planlegging og prosjektledelse i bygg- og…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 16 | 19 contacts → | ||||
Indirect evidence “Entail is an employee owned, independent analysis company focusing on state of the art analyses and automation.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Indirect evidence “Voler er en totalteknisk leverandør som leverer tjenester innen:| Rådgivning og Prosjektering | Prosjektledelse og ITB | Ventilasjon | Rør | Elektro | Byggautomasjon/SD | Drift &…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Indirect evidence “Med over 30 års erfaring fra bygge- og anleggsbransjen, kan våre ansatte hjelpe deg gjennom alle prosjektets faser.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 contacts → | ||||
Indirect evidence “I Vitreo samler vi betydelig kompetanse og forretningsforståelse innen arkitektur og ingeniørfag i et handlekraftig, tverrfaglig fellesskap, med mål om å kunne levere varig verdi…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 20 | 13 contacts → | ||||
Indirect evidence “Om oss Erfaring, kompetanse og nettverk.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 21 | 13 contacts → | ||||
Indirect evidence “Paradigme AS mainly offers assistance to companies in the construction industry, but also has experience from oil and gas industry.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 22 | 12 contacts → | ||||
Partial evidence “Nordic Adviser delivers management consulting and project management to large and medium sized organisations in the private and public sector.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 23 | 10 contacts → | ||||
Indirect evidence “Huslid Consult AS er et konsulentbyrå som kan tilbyr tjenester til offentlige byggherrer, eiendomsutviklere, entreprenører og privatpersoner.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “Structor TS Oslo startet opp sin virksomhet januar 2017 og har hyggelige kontorer i Hovfaret 8 på Skøyen.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Indirect evidence “GrunnTeknikk AS er et uavhengig, rådgivende ingeniørfirma innen fagområdet geoteknikk.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
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 consulting 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 consulting firms.
- Partial evidence
- Its own public description names part of engineering consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name engineering consulting 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 88 engineering consulting firms based in Oslo, Norway
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Engineering consulting firms based in Oslo, Norway at a glance
As of Sep 12, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 14.0dCompany record updated
Median 78.0dHow 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 consulting 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 Oslo, Norway whose own description of what they do matches “engineering consulting 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 consulting 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 consulting firms, and records with no verified work email. Companies headquartered outside Oslo 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, 2,391 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 12, 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.
Engineering consulting firms by metro in Norway
- Engineering consulting firms in Oslo83
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 consulting 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 consulting firms are there based in Oslo, Norway?
RevenueBase identified 88 engineering consulting firms headquartered in Oslo, 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?
Multiconsult, headquartered in Oslo, tops this list with the largest team on record.
Which city has the most engineering consulting firms?
Oslo leads with 83 headquartered companies, followed by Stavanger (20) and Bergen (17).
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 2,391 verified decision-maker contacts tracked across these 88 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 12, 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.
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