Industry code 43.21 · Troms
Electrical installation in Harstad
There are 27 active companies in electrical installation in Harstad. No new companies have been registered in the last 12 months. Together they have 174 registered employees. The largest company is Harstad Elektro AS with 73 employees. The oldest, Siwe Elektro AS, was founded in 1981. 78% are limited companies.
- Active companies
- 27
- New in the last 12 months
- 0
- Registered employees
- 174
- Share of limited companies
- 78 %
The largest companies in electrical installation in Harstad
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 | Harstad Elektro AS | 950179597 | 73 | NOK 155.3 m | 1988 |
| 2 | Haneseth Harstad AS | 961144663 | 27 | NOK 29.4 m | 1991 |
| 3 | Elumni Elektro AS | 976550552 | 23 | NOK 63.2 m | 1996 |
| 4 | Volt Elektro Harstad AS | 986554343 | 23 | NOK 35.9 m | 2004 |
| 5 | Siwe Elektro AS | 930703419 | 15 | NOK 25 m | 1981 |
| 6 | Hitt Elektro AS | 926801449 | 13 | NOK 15.4 m | 2021 |
| 7 | Siwe Holding AS | 814335852 | – | NOK 0 | 2014 |
| 8 | Tkm Holding AS | 921056966 | – | NOK 0 | 2018 |
| 9 | Elektroanlegg AS | 921630204 | – | NOK 1 m | 2018 |
| 10 | Grebstad Elektro | 922974195 | – | – | – |
| 11 | Audun Eriksen Elektro | 924613998 | – | – | – |
| 12 | Hinnøy Elektro AS | 925541591 | – | NOK 0 | 2020 |
| 13 | Volt Holding Harstad AS | 926781790 | – | NOK 0 | 2021 |
| 14 | Røgeberg Multiservice | 927688220 | – | – | – |
| 15 | Pwr4u Iversen | 930143073 | – | – | – |
| 16 | Eilertsen Elektroinstallatør | 932039826 | – | – | – |
| 17 | El-Max AS | 932250616 | – | NOK 1.8 m | 2023 |
| 18 | Eriksen Elektroservice AS | 933498247 | – | NOK 0 | 2024 |
| 19 | Sør-Troms Elektro AS | 935834554 | – | NOK 832.4k | 2025 |
| 20 | Fjellvang AS | 935967481 | – | NOK 210.5k | 2025 |
| 21 | Volt Holding Drift AS | 964144613 | – | NOK 7.6 m | 1992 |
| 22 | Hålogaland Elektro AS | 983093280 | – | NOK 2.9 m | 2001 |
| 23 | Harstad Elektro Holding AS | 984607881 | – | NOK 13.3k | 2002 |
| 24 | Martnes Elektro | 985345147 | – | – | – |
| 25 | Volt Hkg Invest AS | 995646447 | – | NOK 198.1 m | 2010 |
Newest companies in electrical installation in Harstad
- Fjellvang AS13 Aug 2025
- Sør-Troms Elektro AS10 Jul 2025
- Eriksen Elektroservice AS24 May 2024
- El-Max AS13 Oct 2023
- Eilertsen Elektroinstallatør7 Sept 2023
- Pwr4u Iversen2 Nov 2022
- Røgeberg Multiservice8 Sept 2021
- Volt Holding Harstad AS18 Mar 2021
- Hitt Elektro AS16 Mar 2021
- Hinnøy Elektro AS27 Aug 2020
Frequently asked questions
How many companies in electrical installation are there in Harstad?
The Register of Legal Entities lists 27 active companies in electrical installation in Harstad. No new companies have been registered in the last 12 months.
Which is the largest company in electrical installation in Harstad?
Harstad Elektro AS is the largest by number of employees, with 73 employees. The organisation number is 950179597.
How many people work in electrical installation in Harstad?
The companies have 174 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 6 of the 25 largest companies have reported employees.
How long have there been companies in electrical installation in Harstad?
The oldest active company, Siwe Elektro AS, was founded in 1981. 78% of the companies are limited companies.
Explore further
Other industries in the same group in Harstad
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 43.21. Figures are updated continuously.

