Industry code 43.4 · Telemark
Specialised construction activities related to building construction in Porsgrunn
There are 20 active companies in specialised construction activities related to building construction in Porsgrunn. 1 of them were registered in the last 12 months. Together they have 59 registered employees. The largest company is Mestertak AS with 31 employees. The oldest, Isola Holding AS, was founded in 1968. 60% are limited companies.
- Active companies
- 20
- New in the last 12 months
- 1
- Registered employees
- 59
- Share of limited companies
- 60 %
The largest companies in specialised construction activities related to building construction 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 | Mestertak AS | 928489701 | 31 | NOK 99 m | 2021 |
| 2 | Uni Tak AS | 912235319 | 13 | NOK 28.3 m | 2013 |
| 3 | Tekk AS | 884024242 | 9 | NOK 17.6 m | 2001 |
| 4 | Tangen Blikk AS | 922236216 | 6 | NOK 2.7 m | 2019 |
| 5 | Isola Holding AS | 813003252 | – | NOK 19.3 m | 1968 |
| 6 | Krane Kobber Og Blikk NUF | 918743995 | – | – | – |
| 7 | Grenland Takservice AS | 920163327 | – | NOK 1.7 m | 2017 |
| 8 | Takservice Rinkevicius | 920949444 | – | – | – |
| 9 | Norges Peis Forum Nina Emina Bruni | 921738676 | – | – | – |
| 10 | Norsk Investeringsgruppen AS | 923153780 | – | NOK 2 m | 2019 |
| 11 | Ga Takservice Geir Søren Abrahamsen | 924803711 | – | – | – |
| 12 | Multifag Blikk AS | 927035529 | – | – | 2021 |
| 13 | Ahmadi Bygg Og Montasje | 935055547 | – | – | – |
| 14 | Neverdal Blikk | 936118712 | – | – | – |
| 15 | Uni Tak AS | 938519420 | – | – | 2026 |
| 16 | H Pettersen Eft ANS | 963442017 | – | – | 1992 |
| 17 | Tom Gjeruldsen Holding AS | 989089765 | – | – | 2005 |
| 18 | M. Johansen Holding AS | 989268309 | – | – | 2005 |
| 19 | Grenland Blikkenslagerverksted AS | 989271717 | – | NOK 6.2 m | 2005 |
| 20 | Fredrik Nilsen | 997595335 | – | – | – |
Newest companies in specialised construction activities related to building construction in Porsgrunn
- Uni Tak AS1 Oct 2026
- Neverdal Blikk10 Sept 2025
- Ahmadi Bygg Og Montasje24 Feb 2025
- Mestertak AS5 Jan 2022
- Multifag Blikk AS28 Apr 2021
- Ga Takservice Geir Søren Abrahamsen20 Mar 2020
- Norsk Investeringsgruppen AS2 Aug 2019
- Tangen Blikk AS16 Feb 2019
- Norges Peis Forum Nina Emina Bruni15 Nov 2018
- Takservice Rinkevicius5 Jun 2018
Frequently asked questions
How many companies in specialised construction activities related to building construction are there in Porsgrunn?
The Register of Legal Entities lists 20 active companies in specialised construction activities related to building construction in Porsgrunn. 1 of them were registered in the last 12 months.
Which is the largest company in specialised construction activities related to building construction in Porsgrunn?
Mestertak AS is the largest by number of employees, with 31 employees. The organisation number is 928489701.
How many people work in specialised construction activities related to building construction in Porsgrunn?
The companies have 59 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 4 of the 25 largest companies have reported employees.
How long have there been companies in specialised construction activities related to building construction in Porsgrunn?
The oldest active company, Isola Holding AS, was founded in 1968. 60% of the companies are limited companies.
Explore further
Specialised construction activities related to building construction in nearby municipalities
Other industries in the same group in Porsgrunn
Source: the Register of Legal Entities and the Register of Company Accounts. The overview shows active companies registered in the municipality with industry code 43.4. Figures are updated continuously.

