Company lists · Data refreshed September 2026
Top 25 Environmental consultancy firms based in Norway
RevenueBase identified 118 environmental consultancy firms headquartered in Norway as of September 2026 and tracks 6,911 professional contacts across them, including 1,943 with verified work emails and 175 with mobile numbers. Oslo is the largest hub.
This list covers environmental 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 2, 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 environmental consultancy firms based in Norway
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,548 contacts → | ||||
Partial 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 2, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,575 contacts → | ||||
Indirect evidence “Multiconsult Norway is one of the leading firms of architectures, consulting engineers and designers in Norway.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 3 | 90 contacts → | ||||
Partial evidence “Akvaplan-niva provides expert knowledge and advice on the aquatic environment and impacts from climate change, environmental toxins and industries like the aquaculture and energy…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 4 | 51 contacts → | ||||
Strong evidence “Entro is an energy- and environmental consultancy firm with two clients – our customers and the environment.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 2, 2026Thanks. The Data Team will review it. | |||||
| 6 | 47 contacts → | ||||
Indirect evidence “VSO Consulting provides its customers with comprehensive engineering and management consulting with the goals of ensuring them the most efficient solutions for each task that…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 7 | 27 contacts → | ||||
Indirect evidence “Fokus Rådgivning bistår eiendomsbesittere og entreprenører med rådgivning i alle faser; fra reguleringsplan gjennom prosjekterings- og byggefase til tverrfaglig sluttkontroll og…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 8 | 22 contacts → | ||||
Indirect evidence “EvoTek tilbyr rådgivingstjenester innenfor energirådgivning, byggherretjenester og tverrfaglig teknisk rådgivning.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 9 | 17 contacts → | ||||
Indirect evidence “Ecofact er et uavhengig miljøfaglig konsulentselskap med kontor i Sandnes og i Moss.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Indirect evidence “Riksheim er en rådgivningsbedrift som tilbyr ingeniørtjenester innenfor miljø og energiløsninger.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 contacts → | ||||
Indirect evidence “At Sustema, we believe sustainability is more than a responsibility – it’s a strategic advantage.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 contacts → | ||||
Indirect evidence “Vi tilbyr geoteknisk rådgivning til planlegging ved veibygging, fundamentering av bygg og andre konstruksjoner samt beregning og analyse av stabilitet i skråninger og fjellsider.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Partial evidence “At ClimatePoint, we understand that measuring and managing your environmental impact is more than a regulatory necessity-it's a strategic imperative that drives innovation…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Indirect evidence “Blant de største på Agder!” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 contacts → | ||||
Indirect evidence “BERGFALD Miljørådgivere rydder forurensing og bidrar til grønn omstilling.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 contacts → | ||||
Indirect evidence “FORCIT Consulting er Nordens ledende på målinger av ytre miljø, og har over 100 års erfaring, solid erfaring og høy kompetanse.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 2, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 2, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Indirect evidence “Miljøfaglig Utredning AS er en konsulentbedrift med 15 fast ansatte.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 20 | 8 contacts → | ||||
Indirect evidence “Rådgivende Biologer AS - a DNV company, er et av Norges ledende konsulentbyrå innen miljøfag.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Indirect evidence “VA Visjon sørger for at VA- og overvann i ditt prosjekt blir ivaretatt på en måte som skaper verdi for prosjektet.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Indirect evidence “Nomiko - Norsk Miljøkompetanse er et kompetansesenter for miljø og avfall.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “Mulvik er eit rådgivande ingeniørforetak som tilbyr tenester innanfor prosjektering av bygg- og anlegg, kommunalteknikk, prosjekt- og byggeleiing, landmåling, planarbeid, og…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Strong evidence “DynSoL AS is an EPC consultancy leading the field in the provision of risk, safety and environmental consulting services to industries.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “Byggtakst Nord AS er et rådgivende ingeniørfirma etablert i 1997.” Source: RevenueBase Database · checked Sep 2, 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: environmental 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 environmental consultancy firms.
- Partial evidence
- Its own public description names part of environmental consultancy firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name environmental 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 118 environmental consultancy firms based in Norway
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Environmental consultancy firms based in Norway at a glance
As of Sep 2, 2026Companies by employee count
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 environmental 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 “environmental 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 environmental 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 environmental 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, 1,943 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 2, 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.
Environmental consultancy firms by metro
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 environmental 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 environmental consultancy firms are there based in Norway?
RevenueBase identified 118 environmental 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 environmental consultancy firms?
Oslo leads with 38 headquartered companies, followed by Bergen (5) and Trondheim (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 1,943 verified decision-maker contacts tracked across these 118 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 2, 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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