Industry code 43.223 · Trøndelag
Ventilation installation in Trondheim
There are 32 active companies in ventilation installation in Trondheim. 4 of them were registered in the last 12 months. Together they have 275 registered employees. The largest company is Hamstad AS with 153 employees. The oldest, Hamstad AS, was founded in 1986. 72% are limited companies.
- Active companies
- 32
- New in the last 12 months
- 4
- Registered employees
- 275
- Share of limited companies
- 72 %
The largest companies in ventilation installation in Trondheim
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 | Hamstad AS | 936164226 | 153 | NOK 480.6 m | 1986 |
| 2 | Økovent AS | 912592715 | 36 | NOK 58 m | 2013 |
| 3 | Teknisk Ventilasjon AS | 980217345 | 26 | NOK 75.1 m | 1998 |
| 4 | Tempe Blikk Service AS | 937334052 | 18 | – | 2026 |
| 5 | Ventøk AS | 927657104 | 13 | NOK 37.5 m | 2021 |
| 6 | Abs-Teknikk AS | 936300669 | 12 | – | 2025 |
| 7 | Trønderklima AS | 931944274 | 10 | NOK 21.6 m | 2023 |
| 8 | S&s Drift DA | 937086946 | 7 | – | 2026 |
| 9 | Midtsand | 824005222 | – | – | – |
| 10 | Aluman Trondheim A/S | 846355022 | – | NOK 2.4 m | 1987 |
| 11 | Klimateam AS | 886788622 | – | NOK 1.1 m | 2004 |
| 12 | Trønderblikk Inneklima AS | 919440937 | – | NOK 16.4 m | 2017 |
| 13 | Asp Tjenester AS | 921551207 | – | NOK 65k | 2018 |
| 14 | Tempe Blikk Holding AS | 925747858 | – | – | 2020 |
| 15 | Div Barlaup | 925983845 | – | – | – |
| 16 | Trondheim Ventilasjon AS | 928060195 | – | NOK 833.8k | 2021 |
| 17 | Goluft AS | 928337359 | – | NOK 11.6 m | 2021 |
| 18 | Presthus A. | 928828867 | – | – | – |
| 19 | Nordhail Jones | 930707740 | – | – | – |
| 20 | Indovent Mathisen | 932003635 | – | – | – |
| 21 | Kristian Sæterhaug | 933660567 | – | – | – |
| 22 | Mælen Ventilasjon Lynx Kitchen AS | 934147286 | – | – | 2024 |
| 23 | Luftek AS | 934231503 | – | NOK 1.7 m | 2024 |
| 24 | Ka Blikk AS | 934572742 | – | NOK 1.4 m | 2024 |
| 25 | Ventx AS | 935540283 | – | NOK 1.4 m | 2025 |
Newest companies in ventilation installation in Trondheim
- Tempe Blikk Service AS11 Mar 2026
- Skaugstad Klimera Inneklima5 Feb 2026
- S&s Drift DA4 Feb 2026
- Melan Ventilasjonsrep.no26 Jan 2026
- Sji Holding AS16 Oct 2025
- Abs-Teknikk AS3 Oct 2025
- Abs-Teknikk Holding AS20 Aug 2025
- Ventx AS10 Jun 2025
- Ka Blikk AS30 Nov 2024
- Luftek AS8 Oct 2024
Frequently asked questions
How many companies in ventilation installation are there in Trondheim?
The Register of Legal Entities lists 32 active companies in ventilation installation in Trondheim. 4 of them were registered in the last 12 months.
Which is the largest company in ventilation installation in Trondheim?
Hamstad AS is the largest by number of employees, with 153 employees. The organisation number is 936164226.
How many people work in ventilation installation in Trondheim?
The companies have 275 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 8 of the 25 largest companies have reported employees.
How long have there been companies in ventilation installation in Trondheim?
The oldest active company, Hamstad AS, was founded in 1986. 72% 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.

