Company lists · Data refreshed September 2026

Top 25 Ventilation system contractors based in Norway

Name: Ventilation system contractors based in Norway
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 104 companies tracked

RevenueBase identified 104 company matches for ventilation system contractors associated with Norway as of September 2026 and tracks 784 professional contacts across them, including 340 with verified work emails. Oslo is the largest hub.

This list covers company matches for ventilation system contractors associated with Norway, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

104Companies

784Contacts tracked

340Verified emails

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The 25 largest ventilation system contractors based in Norway

Ranked by team size

Top 25 of 104 company matches for ventilation system contractors based in Norway, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Bryn Byggklima AS	Exact match	Hvalstad, NorwayHQ recorded Sep 19, 2026	201-500	126 contacts →
	Exact match “Vi er en betydelig aktør innen service og installasjon av klimaanlegg, og en ledende aktør innen renluftsteknikk.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Hamstad AS	Exact match	Trondheim, NorwayHQ recorded Sep 19, 2026	51-200	71 contacts →
	Exact match “Ledende og landsdekkende leverandør av ventilasjon og byggautomasjon, med installasjoner som bidrar til godt inneklima, lavt energiforbruk og sikker drift.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Aritech AS	Exact match	Leirvik, NorwayHQ recorded Sep 19, 2026	51-200	62 contacts →
	Exact match “Aritech - vi designer og bygger alt innen ventilasjon og elektro.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Swegon Norge	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	51-200	58 contacts →
	Exact match “Swegon er en ledende nordisk leverandør av løsninger for et godt inneklima.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Agder Ventilasjon AS	Exact match	Kristiansand, NorwayHQ recorded Sep 19, 2026	51-200	33 contacts →
	Exact match “Siden oppstarten i 2005 har Agder Ventilasjon AS befestet sin posisjon som markedsleder på Sørlandet innenfor prosjektering, installasjon og service-/vedlikehold av klimatekniske…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Randem & Hübert AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	51-200	20 contacts →
	Exact match “Norges eldste ventilasjonsbedrift.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Haaland Klima AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	11-50	19 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Voler AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	51-200	16 contacts →
	Exact match “Voler er en totalteknisk leverandør som leverer tjenester innen:\| Rådgivning og Prosjektering \| Prosjektledelse og ITB \| Ventilasjon \| Rør \| Elektro \| Byggautomasjon/SD \| Drift &…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Vestfold Klima OG Ventilasjon AS	Exact match	Sandefjord, NorwayHQ recorded Sep 19, 2026	11-50	12 contacts →
	Exact match “Vestfold Klima og Ventilasjon AS ble etablert i 1993 av Trond Brynildsen, som i dag fortsatt sitter i styret.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	LIE Ventilasjon	Exact match	Sandnes, NorwayHQ recorded Sep 19, 2026	11-50	12 contacts →
	Exact match “Lie Ventilasjon er en kulde og ventilasjonsentreprenør Vi er også en servicebedrift for alle typer kjøle og ventilasjon/VVS-anlegg.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Aircomfort Trøndelag AS	Exact match	Verdal, NorwayHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “Din leverandør av produkter og tjenester til ventilasjon- og klimaanlegg.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	DE Service AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	11-50	10 contacts →
	Exact match “Vi er et servicefirma som jobber mot ventilasjons, varme- og kjølebransjen!” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Ytterdahl AS	Exact match	Farsund, NorwayHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “Blikkenslager entreprenør Ventilasjons entreprenør Tak entreprenør” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Teleklima	Exact match	Porsgrunn, NorwayHQ recorded Sep 19, 2026	11-50	9 contacts →
	Exact match “Teleklima er lokalisert i Porsgrunn og har over 40 års fartstid innen prosjektering og montering av ventilasjon, automasjon og service.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Luftkvalitet AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	11-50	7 contacts →
	Exact match “Luftkvalitet AS prosjekterer, installerer og utfører service på ventilasjon- og klimaanlegg i Oslo og østlandsområdet.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Deltrian Norge AS	Exact match	Eidsnes, NorwayHQ recorded Sep 19, 2026	1-10	7 contacts →
	Exact match “Deltrian Norge AS er en leverandør av ventilasjonsfilter til bolig, industri og næring.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Klimaservice Oslo AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	11-50	7 contacts →
	Exact match “Med egne prosjektledere og egne kjøle- og ventilasjonsteknikere, leverer Klimaservice Oslo i dag tekniske servicetjenester og utstyr til forvaltere og eiere av næringsbygg, og…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	MRV	Exact match	Sørum, NorwayHQ recorded Sep 19, 2026	1-10	7 contacts →
	Exact match “Montasje er hjertet av vår drift.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Bergen AIR	Exact match	Bergen, NorwayHQ recorded Sep 19, 2026	11-50	6 contacts →
	Exact match “Bergen Air har siden 2006 vært en virksomhet i utvikling innen fagfeltene ventilasjon – herunder service på ventilasjonsanlegg, tak og fasade arbeider.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Entas AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	11-50	6 contacts →
	Exact match “Teknisk entreprenør innen installasjon, drift og vedlikehold av VVS-anlegg, industrielle røranlegg og elektriske anlegg, samt automatikk og styringssystemer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Pro-Vent AS	Exact match	Ytrebygda, NorwayHQ recorded Sep 19, 2026	11-50	5 contacts →
	Exact match “Vi er en sentral godkjent totalleverandør av ventilasjonanlegg.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	KRO Produksjon AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	11-50	5 contacts →
	Exact match “Vi er produsent, utvikler og forhandler av ventilasjonsprodukter, med skreddersøm som styrke.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Copra AS	Exact match	Tomrefjord, NorwayHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match “Located on the West Coast of Norway and with more than 10 years working for the demanding Norwegian and international marine industry we take pride in being a quality orientated…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Proventa Innemiljø AS	Exact match	Fyllingsdalen, NorwayHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match “Proventa Innemiljø AS tar store og mindre oppdrag enten det er hus, leilighet, sameie, borettslag eller bedrifter.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Proterm AS	Exact match	Oslo, NorwayHQ recorded Sep 19, 2026	11-50	5 contacts →
	Exact match “HVAC contractor with its own department for service, maintenance and repairs.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “ventilation system contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 104 ventilation system contractors based in Norway

See the full list, filter by size, metro and specialty, and access 340 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ventilation system contractors based in Norway at a glance

As of Sep 19, 2026

43.4%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

23.1%Largest-city concentration · Oslo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for Norway, so it is reported there. Company counts and contact totals on this page are exact for Norway, over 104 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Norway whose business descriptions match “ventilation system contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 340 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “ventilation system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ventilation system contractors are there based in Norway?

RevenueBase identified 104 company matches for ventilation system contractors associated with Norway as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Bryn Byggklima AS tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ventilation system contractors?

Oslo leads with 24 company records, followed by Trondheim (7) and Bergen (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 340 professional contacts with verified work emails tracked across these 104 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 SmartSearch, 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.