Industry code 80.0 · Telemark
Private security and investigation activities in Porsgrunn
There are 5 active companies in private security and investigation activities in Porsgrunn. No new companies have been registered in the last 12 months. Together they have 139 registered employees. The largest company is Night & Day Security AS with 85 employees. The oldest, Sivak AS, was founded in 2004. 80% are limited companies.
- Active companies
- 5
- New in the last 12 months
- 0
- Registered employees
- 139
- Share of limited companies
- 80 %
The largest companies in private security and investigation activities in Porsgrunn
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 | Night & Day Security AS | 931505068 | 85 | NOK 5.2 m | 2023 |
| 2 | Avarn Security Beredskap AS | 988357243 | 29 | NOK 39.1 m | 2005 |
| 3 | Stena Confidential AS | 924965126 | 25 | NOK 54.6 m | 2020 |
| 4 | Gustavsens Polar Sikkerhet | 986454934 | – | – | – |
| 5 | Sivak AS | 986817980 | – | NOK 6k | 2004 |
Newest companies in private security and investigation activities in Porsgrunn
- Night & Day Security AS2 Jun 2023
- Stena Confidential AS22 Apr 2020
- Avarn Security Beredskap AS25 Jun 2005
- Sivak AS27 Apr 2004
- Gustavsens Polar Sikkerhet17 Jan 2004
Frequently asked questions
How many companies in private security and investigation activities are there in Porsgrunn?
The Register of Legal Entities lists 5 active companies in private security and investigation activities in Porsgrunn. No new companies have been registered in the last 12 months.
Which is the largest company in private security and investigation activities in Porsgrunn?
Night & Day Security AS is the largest by number of employees, with 85 employees. The organisation number is 931505068.
How many people work in private security and investigation activities in Porsgrunn?
The companies have 139 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 3 of the 25 largest companies have reported employees.
How long have there been companies in private security and investigation activities in Porsgrunn?
The oldest active company, Sivak AS, was founded in 2004. 80% of the companies are limited companies.
Explore further
Private security and investigation activities in nearby municipalities
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 80.0. Figures are updated continuously.

