Industry code 69 · Telemark
Legal and accounting activities in Porsgrunn
There are 43 active companies in legal and accounting activities in Porsgrunn. 2 of them were registered in the last 12 months. Together they have 42 registered employees. The largest company is Aicono AS with 12 employees. The oldest, Regnskapsservice AS, was founded in 1969. 63% are limited companies.
- Active companies
- 43
- New in the last 12 months
- 2
- Registered employees
- 42
- Share of limited companies
- 63 %
The largest companies in legal and accounting 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 | Aicono AS | 823820232 | 12 | NOK 11.9 m | 2019 |
| 2 | Solvang Revisjon AS | 888048472 | 7 | NOK 8.3 m | 2005 |
| 3 | Fryd Regnskap AS | 928764044 | 7 | NOK 9.7 m | 2022 |
| 4 | Wahlstrøm Regnskap Og Rådgivning AS | 929479947 | 6 | NOK 4.5 m | 2022 |
| 5 | Kulltangen Regnskap AS | 896380532 | 5 | NOK 10 m | 2010 |
| 6 | Regnskapsservice AS | 921166389 | 5 | NOK 6.9 m | 1969 |
| 7 | Advokatfirmaet Hein Bæra AS | 817896782 | – | NOK 1.1 m | 2016 |
| 8 | Advokatfirma Thorkildsen & Sem DA | 863856922 | – | – | 1992 |
| 9 | Advokatfirma Mjaaseth AS | 912829022 | – | NOK 2.5 m | 2013 |
| 10 | Haugen & Haugen AS | 913174054 | – | NOK 3.3 m | 2014 |
| 11 | Islann Rettshjelp Og Mekling | 913530217 | – | NOK 1.1 m | – |
| 12 | Egeland Accounting AS | 913565606 | – | NOK 50.6k | 2014 |
| 13 | Advokatfirma Geirr Frønes AS | 913871618 | – | NOK 3.5 m | 2014 |
| 14 | Evjen Revisjon AS | 915638384 | – | NOK 7.5 m | 2015 |
| 15 | Advokatfirmaet Revheim AS | 915935745 | – | NOK 2.7 m | 2015 |
| 16 | Sviggum Forvaltning | 919638087 | – | – | – |
| 17 | Advokatfirma Mjaaseth Revheim Co DA | 919804416 | – | NOK 178k | 2017 |
| 18 | Sports Accounting AS | 925992844 | – | NOK 2.8 m | 2020 |
| 19 | Lerungsand Rougthvedt | 927096579 | – | – | – |
| 20 | Advokatfirmaet Mofossbakke AS | 932874873 | – | NOK 291k | 2024 |
| 21 | Thalberg Invest AS | 933456714 | – | NOK 619.8k | 2024 |
| 22 | Porsgrunn Regnskap AS | 933556549 | – | NOK 2.1 m | 2024 |
| 23 | Lothbrok Consulting | 935222230 | – | – | – |
| 24 | Advokatfirma Jason Alexander Werner AS | 935658489 | – | NOK 729.8k | 2025 |
| 25 | Korde Advokat AS | 935889065 | – | NOK 997.9k | 2025 |
Newest companies in legal and accounting activities in Porsgrunn
- Optimal Consulting AS7 May 2026
- Accounthelp AS17 Dec 2025
- Schei11 Sept 2025
- Korde Advokat AS28 Jul 2025
- Advokatfirma Jason Alexander Werner AS11 Jun 2025
- Lothbrok Consulting20 Mar 2025
- Porsgrunn Regnskap AS5 Jun 2024
- Thalberg Invest AS15 May 2024
- Advokatfirmaet Mofossbakke AS23 Jan 2024
- Wahlstrøm Regnskap Og Rådgivning AS14 Jul 2022
Frequently asked questions
How many companies in legal and accounting activities are there in Porsgrunn?
The Register of Legal Entities lists 43 active companies in legal and accounting activities in Porsgrunn. 2 of them were registered in the last 12 months.
Which is the largest company in legal and accounting activities in Porsgrunn?
Aicono AS is the largest by number of employees, with 12 employees. The organisation number is 823820232.
How many people work in legal and accounting activities in Porsgrunn?
The companies have 42 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 legal and accounting activities in Porsgrunn?
The oldest active company, Regnskapsservice AS, was founded in 1969. 63% of the companies are limited companies.
Explore further
Legal and accounting activities in nearby municipalities
Sub-industries 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 69. Figures are updated continuously.

