Industry code 43 · Østfold
Specialised construction activities in Halden
There are 271 active companies in specialised construction activities in Halden. 23 of them were registered in the last 12 months. Together they have 549 registered employees. The largest company is Leif Grimsrud AS with 243 employees. The oldest, Olaf Hansens Eftf AS, was founded in 1976. 42% are limited companies.
- Active companies
- 271
- New in the last 12 months
- 23
- Registered employees
- 549
- Share of limited companies
- 42 %
The largest companies in specialised construction activities in Halden
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 | Leif Grimsrud AS | 832516902 | 243 | NOK 766.9 m | 1982 |
| 2 | Rikelektro AS | 991320164 | 58 | NOK 121.4 m | 2007 |
| 3 | F Jørgensen AS | 952183729 | 29 | NOK 55.9 m | 1989 |
| 4 | Riis Elektro AS | 967907103 | 22 | NOK 46.6 m | 1993 |
| 5 | Erling Grimsrud AS | 912090760 | 20 | NOK 31.4 m | 1982 |
| 6 | Olaf Hansens Eftf AS | 912385787 | 17 | NOK 30.8 m | 1976 |
| 7 | Elektrikertjenesten Halden AS | 985700230 | 17 | NOK 21.7 m | 2003 |
| 8 | Elisenberg Elektro AS | 919788143 | 16 | NOK 24 m | 2017 |
| 9 | Høvik Grus Og Anlegg AS | 995662876 | 15 | NOK 13.6 m | 2010 |
| 10 | Nordsjø Idé Og Design AS | 993930806 | 11 | NOK 12.6 m | 2009 |
| 11 | Raa Skogsdrift AS | 983227651 | 10 | NOK 37.1 m | 2001 |
| 12 | Kolås Eftf AS | 837576652 | 9 | NOK 19.8 m | 1985 |
| 13 | Bud-Bau Stillas AS | 912543269 | 9 | NOK 10 m | 2013 |
| 14 | Flis Og Malerservice AS | 995682478 | 9 | NOK 9.7 m | 2010 |
| 15 | Pipe Eksperten AS | 835345882 | 8 | NOK 22.9 m | 2025 |
| 16 | Malermester Odd Jansen & Sønn AS | 980169405 | 8 | NOK 3.2 m | 1998 |
| 17 | Auensen Maskinentreprenør AS | 997890930 | 8 | NOK 15.7 m | 2012 |
| 18 | Halden Rørleggerservice AS | 995653206 | 7 | NOK 19 m | 2010 |
| 19 | Ht Gjerder Østfold Og Akershus AS | 820935772 | 6 | NOK 4.8 m | 2018 |
| 20 | Ajot Montering AS | 916810113 | 6 | NOK 6.3 m | 2016 |
| 21 | Oskar L. Hansen AS | 922763119 | 6 | NOK 6 m | 1979 |
| 22 | Kynningsrud AS | 913686136 | 5 | NOK 9.7 m | 1978 |
| 23 | Grandahl Rør AS | 931940236 | 5 | NOK 6.5 m | 2023 |
| 24 | Handymantjenesten AS | 996296709 | 5 | NOK 8 m | 2010 |
| 25 | Maler Bent Rørmyr AS | 813658372 | – | NOK 365.2k | 2014 |
Newest companies in specialised construction activities in Halden
- Bergmjøl AS16 Oct 2026
- Hekla Vvs AS28 Sept 2026
- Juelsen Takservice27 Sept 2026
- Maskinentreprenør Og Anleggsgartner AS23 Sept 2026
- Halden Elektro AS18 Sept 2026
- Odin Halstvedt ENK18 Sept 2026
- Halden Vvs AS7 Sept 2026
- Kirchhof ENK7 Aug 2026
- Hus Service AS Konkursbo4 Aug 2026
- Grettland Maskindrift1 Aug 2026
Frequently asked questions
How many companies in specialised construction activities are there in Halden?
The Register of Legal Entities lists 271 active companies in specialised construction activities in Halden. 23 of them were registered in the last 12 months.
Which is the largest company in specialised construction activities in Halden?
Leif Grimsrud AS is the largest by number of employees, with 243 employees. The organisation number is 832516902.
How many people work in specialised construction activities in Halden?
The companies have 549 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 24 of the 25 largest companies have reported employees.
How long have there been companies in specialised construction activities in Halden?
The oldest active company, Olaf Hansens Eftf AS, was founded in 1976. 42% of the companies are limited companies.
Explore further
Specialised construction activities in nearby municipalities
Sub-industries in Halden
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. Figures are updated continuously.