Industry code 35 · Trøndelag
Electricity, gas, steam and air conditioning supply in Trondheim
There are 49 active companies in electricity, gas, steam and air conditioning supply in Trondheim. 2 of them were registered in the last 12 months. Together they have 654 registered employees. The largest company is Tensio Ts AS with 286 employees. The oldest, Driva Kraftverk DA, was founded in 1966. 90% are limited companies.
- Active companies
- 49
- New in the last 12 months
- 2
- Registered employees
- 654
- Share of limited companies
- 90 %
The largest companies in electricity, gas, steam and air conditioning supply 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 | Tensio Ts AS | 978631029 | 286 | NOK 1.7 bn | 1997 |
| 2 | Aneo AS | 828987712 | 136 | NOK 251.7 m | 2022 |
| 3 | Lunera Energi AS | 980396002 | 107 | NOK 829.7 m | 1998 |
| 4 | Trønderenergi Kraft AS | 878631072 | 58 | NOK 1 bn | 1997 |
| 5 | Aneo Vind AS | 921186002 | 39 | NOK 205.8 m | 2018 |
| 6 | Nordic Bioenergy AS | 935726832 | 21 | – | 2025 |
| 7 | Trønderenergi AS | 980417824 | 7 | NOK 911.9 m | 1998 |
| 8 | Klæbu Bioenergi AS | 813493632 | – | NOK 5.4 m | 2014 |
| 9 | Midgard Vind Holding AS | 821186242 | – | NOK 569k | 2018 |
| 10 | Aneo Holding 2 AS | 829048612 | – | – | 2022 |
| 11 | Aneo Renewables Holding AS | 829455722 | – | NOK 24k | 2022 |
| 12 | Wiik Kn-El | 831460822 | – | – | – |
| 13 | Trøndelagkraft AS | 880396072 | – | NOK 408.6 m | 1998 |
| 14 | Sit Geovarme AS | 914601630 | – | NOK 4.8 m | 2014 |
| 15 | Aneo Fosen Vind Holding AS | 915229557 | – | NOK 23.2 m | 2015 |
| 16 | Aneo Energy AS | 919627603 | – | NOK 2.5 m | 2017 |
| 17 | Vimle AS | 920414389 | – | NOK 11.1 m | 2018 |
| 18 | Gauldal Bioenergi AS | 920849571 | – | NOK 5.8 m | 2018 |
| 19 | Frøya Vind AS | 921886098 | – | NOK 5.3 m | 2018 |
| 20 | Sørmarkfjellet AS | 921886241 | – | NOK 9.3 m | 2018 |
| 21 | Ytre Vikna 1 AS | 921886292 | – | NOK 2 m | 2018 |
| 22 | Hundhammerfjellet AS | 921891628 | – | NOK 3.9 m | 2018 |
| 23 | Midgard Vind AS | 921894066 | – | NOK 4.2 m | 2018 |
| 24 | Stokkfjellet AS | 921894295 | – | NOK 7.2 m | 2018 |
| 25 | Winns Energy AS | 924389176 | – | – | 2019 |
Newest companies in electricity, gas, steam and air conditioning supply in Trondheim
- Obh Energi AS18 Mar 2026
- Eldr Energy AS11 Mar 2026
- Nordic Bioenergy AS23 Jun 2025
- Deep Energy AS17 Mar 2025
- Norico Norge AS17 Sept 2024
- Aneo Inv Holding AS9 Oct 2023
- Wiik Kn-El1 Jun 2023
- Power To X AS20 Dec 2022
- Trønderenergi Vekst Holding AS19 Sept 2022
- Aneo Renewables Holding AS5 Jul 2022
Frequently asked questions
How many companies in electricity, gas, steam and air conditioning supply are there in Trondheim?
The Register of Legal Entities lists 49 active companies in electricity, gas, steam and air conditioning supply in Trondheim. 2 of them were registered in the last 12 months.
Which is the largest company in electricity, gas, steam and air conditioning supply in Trondheim?
Tensio Ts AS is the largest by number of employees, with 286 employees. The organisation number is 978631029.
How many people work in electricity, gas, steam and air conditioning supply in Trondheim?
The companies have 654 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 7 of the 25 largest companies have reported employees.
How long have there been companies in electricity, gas, steam and air conditioning supply in Trondheim?
The oldest active company, Driva Kraftverk DA, was founded in 1966. 90% of the companies are limited companies.
Explore further
Electricity, gas, steam and air conditioning supply in nearby municipalities
Sub-industries in Trondheim
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 35. Figures are updated continuously.

