Industry code 43.223 · Østfold
Ventilation installation in Indre Østfold
There are 35 active companies in ventilation installation in Indre Østfold. 4 of them were registered in the last 12 months. Together they have 118 registered employees. The largest company is Trømborg Ventilasjonspartnere AS with 28 employees. The oldest, Trømborg Ventilasjonspartnere AS, was founded in 2006. 57% are limited companies.
- Active companies
- 35
- New in the last 12 months
- 4
- Registered employees
- 118
- Share of limited companies
- 57 %
The largest companies in ventilation installation in Indre Østfold
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 | Trømborg Ventilasjonspartnere AS | 990775583 | 28 | NOK 60.8 m | 2006 |
| 2 | Slk Montasje AS | 936138306 | 19 | NOK 3.1 m | 2025 |
| 3 | Luftteknikeren AS | 913223853 | 15 | NOK 10.3 m | 2014 |
| 4 | Ventilasjonsservice AS | 922258201 | 12 | NOK 12.4 m | 2019 |
| 5 | Kk Vent AS | 937977565 | 11 | – | 2026 |
| 6 | Østfold Miljøteknikk AS | 999080421 | 7 | NOK 7.7 m | 2012 |
| 7 | Ventilasjonstjenesten AS | 927089246 | 6 | NOK 10.5 m | 2021 |
| 8 | Climatech AS | 812440942 | 5 | NOK 10.4 m | 2013 |
| 9 | Nordmarkens Ventilasjon AS | 920685897 | 5 | NOK 6.1 m | 2018 |
| 10 | Jozwicki Entreprenør | 920843727 | 5 | – | – |
| 11 | Tarass Rozko Vent AS | 937651600 | 5 | – | 2026 |
| 12 | Krzysztof Pilski | 821227682 | – | – | – |
| 13 | Sandtorp Ventilasjon | 828976672 | – | – | – |
| 14 | Knut-Olav Gaaseby | 830146822 | – | – | – |
| 15 | Alp Ventilasjon | 831497122 | – | – | – |
| 16 | Ventinspect AS | 837207762 | – | – | 2026 |
| 17 | Idea Ventilasjon AS | 915414982 | – | NOK 330.1k | 2015 |
| 18 | Skjøthaug Ventilasjon | 922765391 | – | – | – |
| 19 | Piotr Kulpaka | 922768560 | – | – | – |
| 20 | Ruud Ventilasjon | 922900299 | – | – | – |
| 21 | Inge Søpler X-Montasje | 925587052 | – | – | – |
| 22 | Lunde Inneklima AS | 927034034 | – | NOK 516.5k | 2021 |
| 23 | Evensen Montasje | 928019500 | – | – | – |
| 24 | Klima Boligventilasjon AS | 928745414 | – | NOK 2 m | 2022 |
| 25 | Profvent AS | 929590864 | – | NOK 3.5 m | 2022 |
Newest companies in ventilation installation in Indre Østfold
- Kk Vent AS25 Jun 2026
- Iso&vent Vadeanu15 Jun 2026
- Tarass Rozko Vent AS4 May 2026
- Ventinspect AS20 Feb 2026
- Slk Montasje AS12 Sept 2025
- Slk Innregulering AS10 Sept 2025
- Stordahls Invest AS5 Feb 2025
- Ribe Klimateknikk13 Jan 2025
- Alp Ventilasjon1 Jun 2023
- Koscielny Ventilasjon27 May 2023
Frequently asked questions
How many companies in ventilation installation are there in Indre Østfold?
The Register of Legal Entities lists 35 active companies in ventilation installation in Indre Østfold. 4 of them were registered in the last 12 months.
Which is the largest company in ventilation installation in Indre Østfold?
Trømborg Ventilasjonspartnere AS is the largest by number of employees, with 28 employees. The organisation number is 990775583.
How many people work in ventilation installation in Indre Østfold?
The companies have 118 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 11 of the 25 largest companies have reported employees.
How long have there been companies in ventilation installation in Indre Østfold?
The oldest active company, Trømborg Ventilasjonspartnere AS, was founded in 2006. 57% of the companies are limited companies.
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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.