Industry code 42 · Østfold
Civil engineering in Fredrikstad
There are 13 active companies in civil engineering in Fredrikstad. No new companies have been registered in the last 12 months. Together they have 199 registered employees. The largest company is Nett-Tjenester AS with 154 employees. The oldest, Østfold Brønnboring AS, was founded in 1983. 69% are limited companies.
- Active companies
- 13
- New in the last 12 months
- 0
- Registered employees
- 199
- Share of limited companies
- 69 %
The largest companies in civil engineering in Fredrikstad
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 | Nett-Tjenester AS | 995627868 | 154 | NOK 526.5 m | 2010 |
| 2 | Østfold Brønnboring AS | 933255220 | 11 | NOK 17 m | 1983 |
| 3 | Bryggeservice Østfold AS | 921678673 | 10 | NOK 10.6 m | 2018 |
| 4 | AS Kafra | 920928838 | 9 | NOK 26 m | 2018 |
| 5 | Ampera AS | 936318061 | 8 | – | 2025 |
| 6 | Øtd AS | 932088134 | 7 | NOK 2.4 m | 2023 |
| 7 | Sjøtjenester Eiendom AS | 896973002 | – | NOK 3 m | 2011 |
| 8 | Yngve Olsen | 912790061 | – | – | – |
| 9 | Sjøtjenester AS | 930568546 | – | NOK 306.7k | 2022 |
| 10 | Seameck Henning Pedersen | 980185028 | – | – | – |
| 11 | Øystein Johnsen Subsea Cable Norway | 985974845 | – | – | – |
| 12 | Subsea Trenching Services AS | 988277916 | – | NOK 1.4 m | 2005 |
| 13 | Nylende/Liane Vann- Og Avløpsforening | 998594871 | – | – | 2012 |
Newest companies in civil engineering in Fredrikstad
- Ampera AS6 Oct 2025
- Øtd AS7 Oct 2023
- Sjøtjenester AS3 Jan 2023
- Bryggeservice Østfold AS8 Nov 2018
- AS Kafra1 Jun 2018
- Yngve Olsen3 Dec 2013
- Nylende/Liane Vann- Og Avløpsforening30 Jul 2012
- Sjøtjenester Eiendom AS30 May 2011
- Nett-Tjenester AS21 Jun 2010
- Subsea Trenching Services AS6 Jun 2005
Frequently asked questions
How many companies in civil engineering are there in Fredrikstad?
The Register of Legal Entities lists 13 active companies in civil engineering in Fredrikstad. No new companies have been registered in the last 12 months.
Which is the largest company in civil engineering in Fredrikstad?
Nett-Tjenester AS is the largest by number of employees, with 154 employees. The organisation number is 995627868.
How many people work in civil engineering in Fredrikstad?
The companies have 199 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 civil engineering in Fredrikstad?
The oldest active company, Østfold Brønnboring AS, was founded in 1983. 69% of the companies are limited companies.
Explore further
Civil engineering in nearby municipalities
Sub-industries in Fredrikstad
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 42. Figures are updated continuously.

