Industry code 43 · Østfold
Specialised construction activities in Indre Østfold
There are 695 active companies in specialised construction activities in Indre Østfold. 57 of them were registered in the last 12 months. Together they have 1,246 registered employees. The largest company is Askim & Mysen Rør AS with 155 employees. The oldest, AS Vindusglass, was founded in 1968. 38% are limited companies.
- Active companies
- 695
- New in the last 12 months
- 57
- Registered employees
- 1,246
- Share of limited companies
- 38 %
The largest companies in specialised construction activities 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 | Askim & Mysen Rør AS | 980236226 | 155 | NOK 317.5 m | 1998 |
| 2 | Askim Entreprenør AS | 976115295 | 122 | NOK 513.3 m | 1996 |
| 3 | Vvs Comfort AS | 922053480 | 60 | NOK 108.3 m | 1970 |
| 4 | Smådahl AS | 880984292 | 41 | NOK 42.2 m | 1999 |
| 5 | Elektrotjenesten AS | 917696853 | 34 | NOK 77.4 m | 2016 |
| 6 | Ol Montering 1 AS | 898846792 | 31 | NOK 29.3 m | 2012 |
| 7 | Norddisk AS | 920610765 | 30 | NOK 107.7 m | 2018 |
| 8 | Indre Østfold Ventilasjon AS | 967647675 | 28 | NOK 57.5 m | 1993 |
| 9 | Trømborg Ventilasjonspartnere AS | 990775583 | 28 | NOK 60.8 m | 2006 |
| 10 | Romerike Armering AS | 994443526 | 28 | NOK 25.2 m | 2009 |
| 11 | Mysen Takservice AS | 950573317 | 26 | NOK 29.7 m | 1988 |
| 12 | Fossum Anlegg AS | 985033110 | 23 | NOK 76.6 m | 2002 |
| 13 | H/S Elektro AS | 926523740 | 22 | NOK 29.9 m | 2021 |
| 14 | Netconnect Norge AS | 912070352 | 21 | NOK 23.8 m | 2013 |
| 15 | Slk Montasje AS | 936138306 | 19 | NOK 3.1 m | 2025 |
| 16 | Lintho Steinmiljø AS | 991372474 | 19 | NOK 50.2 m | 2007 |
| 17 | El-Geniet AS | 937325371 | 17 | – | 2026 |
| 18 | Arild Kolstad A/S | 946488313 | 16 | NOK 43 m | 1987 |
| 19 | Ae Gruppen AS | 976094727 | 16 | NOK 547.9 m | 1996 |
| 20 | Arctic Kulde AS | 980219526 | 16 | NOK 28.1 m | 1998 |
| 21 | Marius Snekker Service AS | 999340334 | 16 | NOK 8.1 m | 2012 |
| 22 | Luftteknikeren AS | 913223853 | 15 | NOK 10.3 m | 2014 |
| 23 | Tn Varmeteknikk AS | 918646663 | 15 | NOK 24.2 m | 2017 |
| 24 | Bisto Entreprenør AS | 920209270 | 15 | NOK 31.5 m | 2017 |
| 25 | Indre Østfold Elektro AS | 886086962 | 14 | NOK 24.3 m | 2003 |
Newest companies in specialised construction activities in Indre Østfold
- K & K Vent AS Konkursbo2 Nov 2026
- Johansen Anleggsservice2 Nov 2026
- Jensvold Østfold Byggservice24 Oct 2026
- Lasse Normann Grahl Vvs Service23 Oct 2026
- Owrum Bygg Og Blikk AS Tvangsavviklingsbo20 Oct 2026
- Belgen Maskin Og Transport AS Tvangsavviklingsbo20 Oct 2026
- Lybæk Anlegg29 Sept 2026
- Bent Jensen17 Sept 2026
- Skasberg Kran & Drift2 Sept 2026
- Arne Kjoshagen25 Aug 2026
Frequently asked questions
How many companies in specialised construction activities are there in Indre Østfold?
The Register of Legal Entities lists 695 active companies in specialised construction activities in Indre Østfold. 57 of them were registered in the last 12 months.
Which is the largest company in specialised construction activities in Indre Østfold?
Askim & Mysen Rør AS is the largest by number of employees, with 155 employees. The organisation number is 980236226.
How many people work in specialised construction activities in Indre Østfold?
The companies have 1,246 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 25 of the 25 largest companies have reported employees.
How long have there been companies in specialised construction activities in Indre Østfold?
The oldest active company, AS Vindusglass, was founded in 1968. 38% of the companies are limited companies.
Explore further
Specialised construction activities in nearby municipalities
Sub-industries in Indre Østfold
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.