Industry code 43.223 · Buskerud
Ventilation installation in Ringerike
There are 9 active companies in ventilation installation in Ringerike. 2 of them were registered in the last 12 months. Together they have 39 registered employees. The largest company is Mt Klima AS with 27 employees. The oldest, West Wermland Montasje AS, was founded in 2013. 78% are limited companies.
- Active companies
- 9
- New in the last 12 months
- 2
- Registered employees
- 39
- Share of limited companies
- 78 %
The largest companies in ventilation installation in Ringerike
Sorted by number of employees. Figures are from the Register of Legal Entities and the Register of Company Accounts.
| # | Company | Org. no. | Employees | Revenue | Founded |
|---|---|---|---|---|---|
| 1 | Mt Klima AS | 820739582 | 27 | NOK 110.5 m | 2018 |
| 2 | West Wermland Montasje AS | 911897679 | 12 | NOK 9.5 m | 2013 |
| 3 | Bratvold Boligventilasjonsservice AS | 836290712 | – | NOK 569.9k | 2025 |
| 4 | Molind Holding AS | 920739563 | – | – | 2018 |
| 5 | Sperstad Klima | 922718369 | – | – | – |
| 6 | Astro Ventilation / Tantonwach | 922970718 | – | – | – |
| 7 | Bratvold Boligventilasjon AS | 926317555 | – | NOK 6.9 m | 2020 |
| 8 | Lufta AS | 936675840 | – | NOK 103.1k | 2025 |
| 9 | Astro Ventilasjon AS | 938253536 | – | – | 2026 |
Newest companies in ventilation installation in Ringerike
- Astro Ventilasjon AS13 Aug 2026
- Lufta AS1 Dec 2025
- Bratvold Boligventilasjonsservice AS1 Oct 2025
- Bratvold Boligventilasjon AS4 Jan 2021
- Astro Ventilation / Tantonwach26 Jun 2019
- Sperstad Klima8 May 2019
- Mt Klima AS17 Apr 2018
- Molind Holding AS17 Apr 2018
- West Wermland Montasje AS4 May 2013
Frequently asked questions
How many companies in ventilation installation are there in Ringerike?
The Register of Legal Entities lists 9 active companies in ventilation installation in Ringerike. 2 of them were registered in the last 12 months.
Which is the largest company in ventilation installation in Ringerike?
Mt Klima AS is the largest by number of employees, with 27 employees. The organisation number is 820739582.
How many people work in ventilation installation in Ringerike?
The companies have 39 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 2 of the 25 largest companies have reported employees.
How long have there been companies in ventilation installation in Ringerike?
The oldest active company, West Wermland Montasje AS, was founded in 2013. 78% of the companies are limited companies.
Explore further
Ventilation installation in nearby municipalities
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 43.223. Figures are updated continuously.