Industry code 43.2 · Telemark
Electrical, plumbing and other construction installation activities in Porsgrunn
There are 73 active companies in electrical, plumbing and other construction installation activities in Porsgrunn. 5 of them were registered in the last 12 months. Together they have 607 registered employees. The largest company is Laugstol AS with 135 employees. The oldest, Installatør Per Øverland AS, was founded in 1971. 79% are limited companies.
- Active companies
- 73
- New in the last 12 months
- 5
- Registered employees
- 607
- Share of limited companies
- 79 %
The largest companies in electrical, plumbing and other construction installation 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 | Laugstol AS | 964715378 | 135 | NOK 427 m | 1992 |
| 2 | Set Linings International S. A. | 993823317 | 104 | NOK 21.8 m | – |
| 3 | Telerør A/S | 946858021 | 68 | NOK 121.6 m | 1988 |
| 4 | Eltera Skagerrak AS | 918672567 | 45 | NOK 95 m | 2017 |
| 5 | Telerør Elektro AS | 928978192 | 43 | NOK 49.9 m | 2022 |
| 6 | Norsk Områdesikring AS | 997362470 | 35 | NOK 51.7 m | 2011 |
| 7 | Team Energy AS | 919706430 | 29 | NOK 4.7 m | 2017 |
| 8 | Norsk Sprinklerteknikk AS | 919847816 | 27 | NOK 38 m | 2017 |
| 9 | Porsgrunn Rørleggerforretning AS | 924001216 | 22 | NOK 47.5 m | 1987 |
| 10 | Isofag AS | 925392820 | 20 | NOK 7.7 m | 2020 |
| 11 | Teleklima AS | 990330255 | 19 | NOK 54.6 m | 2006 |
| 12 | Stabil Varme Service AS | 998726530 | 10 | NOK 31.3 m | 2012 |
| 13 | Installatør Per Øverland AS | 919811714 | 9 | NOK 10 m | 1971 |
| 14 | Tkt Inneklima AS | 923792333 | 8 | NOK 37.2 m | 2019 |
| 15 | Grenland Maritime Elektro AS | 925827495 | 8 | NOK 5.2 m | 2020 |
| 16 | Foss Elektro AS | 985565619 | 8 | NOK 14.1 m | 2003 |
| 17 | Grenland Elektro AS | 946186368 | 7 | NOK 6.3 m | 1988 |
| 18 | Rørlegger Svein Andersen AS | 917857296 | 5 | NOK 9.8 m | 2016 |
| 19 | Herøya Elektro AS | 957096018 | 5 | NOK 8.9 m | 1990 |
| 20 | Skagerak Elektro AS | 813670992 | – | – | 2014 |
| 21 | Elektroinstallatør Yngvar Andersson | 815422112 | – | – | – |
| 22 | Fosse Klimaservice AS | 830788832 | – | NOK 1.1 m | 2023 |
| 23 | Hn Elektro AS | 911836505 | – | NOK 376.7k | 2013 |
| 24 | Service Hansen | 912278689 | – | – | – |
| 25 | Rørleggerekspressen AS | 913947606 | – | NOK 4 m | 2014 |
Newest companies in electrical, plumbing and other construction installation activities in Porsgrunn
- Elektrohjelpen Leonardsen18 Sept 2026
- Ajk Elektro AS15 Sept 2026
- Trosvik Elektro AS11 May 2026
- Kristensen El-Ag17 Mar 2026
- Tb Systems AS22 Jan 2026
- 4r3 Service AS31 Oct 2025
- Rørlegger Anders Hesmyr25 Aug 2025
- Jd Elektroservice Van30 Jul 2025
- Eliten AS3 Jul 2025
- Thomassen Rørmontasje & Vedlikehold8 May 2025
Frequently asked questions
How many companies in electrical, plumbing and other construction installation activities are there in Porsgrunn?
The Register of Legal Entities lists 73 active companies in electrical, plumbing and other construction installation activities in Porsgrunn. 5 of them were registered in the last 12 months.
Which is the largest company in electrical, plumbing and other construction installation activities in Porsgrunn?
Laugstol AS is the largest by number of employees, with 135 employees. The organisation number is 964715378.
How many people work in electrical, plumbing and other construction installation activities in Porsgrunn?
The companies have 607 registered employees in total. The figures are based on employee counts in the Register of Legal Entities, and 19 of the 25 largest companies have reported employees.
How long have there been companies in electrical, plumbing and other construction installation activities in Porsgrunn?
The oldest active company, Installatør Per Øverland AS, was founded in 1971. 79% of the companies are limited companies.
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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 43.2. Figures are updated continuously.