Industry code 74.99 · Østfold
All other professional, scientific and technical activities n.e.c. in Halden
There are 19 active companies in all other professional, scientific and technical activities n.e.c. in Halden. 1 of them were registered in the last 12 months. Together they have 6 registered employees. The largest company is Takstfag AS with 6 employees. The oldest, Irpa AS, was founded in 2013. 32% are limited companies.
- Active companies
- 19
- New in the last 12 months
- 1
- Registered employees
- 6
- Share of limited companies
- 32 %
The largest companies in all other professional, scientific and technical activities n.e.c. 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 | Takstfag AS | 913061969 | 6 | NOK 5.8 m | 2014 |
| 2 | Jml Eiendom AS | 817146422 | – | NOK 222.9k | 2016 |
| 3 | Venture Tech Norway NUF | 887344442 | – | – | – |
| 4 | Wilhelmsens Taksering Og Kontroll | 913601599 | – | – | – |
| 5 | Hauge Pharma | 917267774 | – | – | – |
| 6 | Pietzuch Tyskcoach | 920187382 | – | – | – |
| 7 | Prom-Art Norway | 922752966 | – | – | 2019 |
| 8 | Tg Takst AS | 925085685 | – | NOK 544.9k | 2020 |
| 9 | Grottenberg Analyse | 926672835 | – | – | – |
| 10 | Fjeldhøi Takst Og Eiendom AS | 930388092 | – | NOK -96.4k | 2022 |
| 11 | Rydmark Miljø | 933645150 | – | – | – |
| 12 | Rygh Invest | 935387280 | – | – | – |
| 13 | Idrt AS | 936710085 | – | NOK 0 | 2025 |
| 14 | Østensvig Konsulenttjenester | 970887121 | – | – | – |
| 15 | Rolf Are Eilertsen | 980954153 | – | – | – |
| 16 | Rockmerch Norge Marius Nilsen | 985169179 | – | – | – |
| 17 | Thomas Haugen | 991711422 | – | – | – |
| 18 | Hairless Heart Management Magne Jensen | 992104538 | – | – | – |
| 19 | Irpa AS | 999609384 | – | NOK 3.1 m | 2013 |
Newest companies in all other professional, scientific and technical activities n.e.c. in Halden
- Idrt AS16 Dec 2025
- Rygh Invest28 Apr 2025
- Rydmark Miljø20 Jun 2024
- Fjeldhøi Takst Og Eiendom AS9 Dec 2022
- Grottenberg Analyse24 Feb 2021
- Tg Takst AS28 May 2020
- Prom-Art Norway14 Jun 2019
- Pietzuch Tyskcoach4 Jan 2018
- Hauge Pharma3 Jun 2016
- Jml Eiendom AS10 May 2016
Frequently asked questions
How many companies in all other professional, scientific and technical activities n.e.c. are there in Halden?
The Register of Legal Entities lists 19 active companies in all other professional, scientific and technical activities n.e.c. in Halden. 1 of them were registered in the last 12 months.
Which is the largest company in all other professional, scientific and technical activities n.e.c. in Halden?
Takstfag AS is the largest by number of employees, with 6 employees. The organisation number is 913061969.
How many people work in all other professional, scientific and technical activities n.e.c. in Halden?
The companies have 6 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 1 of the 25 largest companies have reported employees.
How long have there been companies in all other professional, scientific and technical activities n.e.c. in Halden?
The oldest active company, Irpa AS, was founded in 2013. 32% of the companies are limited companies.
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 74.99. Figures are updated continuously.

