Plumbing installation
HALVORSEN INVESTERING AS
Operating profit
NOK −270,000
Equity
NOK 273.4m
Incorporated
2005
Share capital
NOK 410,000
Roles
Daglig lederInger Lien Halvorsen
Regnskapsfører
Revisor
Styrets lederDag Halvorsen
StyremedlemEli Halvorsen Norheim
StyremedlemInger Lien Halvorsen
Auditor
Audit firm
ERGA REVISJON AS
ERGA REVISJON AS har 18 registrerte statsautoriserte revisorer.
The Brønnøysund registers name the audit firm, not which individual auditor signs the accounts.
Auditor at related companies
6 of 6 companies in the same group use the same auditor.
| Company | Auditor | |
|---|---|---|
| AGDER VENTILASJON AS | ERGA REVISJON AS | same |
| EGELAND RØR AS | ERGA REVISJON AS | same |
| NORELCO ELEKTRO AS | ERGA REVISJON AS | same |
| RØNNING ELEKTRO AS | ERGA REVISJON AS | same |
| SIG HALVORSEN AS | ERGA REVISJON AS | same |
| SIG HALVORSEN EIENDOM AS | ERGA REVISJON AS | same |
Shareholders
| Name | Stake | Shares | Year |
|---|---|---|---|
| INGER LIEN HALVORSEN | 24.0% | 14040.000000 | 2025 |
| ELI HALVORSEN NORHEIM | 24.0% | 14040.000000 | 2025 |
| ELI HALVORSEN NORHEIM | 21.0% | 12285.000000 | 2025 |
| INGER LIEN HALVORSEN | 21.0% | 12285.000000 | 2025 |
| DAG HALVORSEN | 10.0% | 5850.000000 | 2025 |
Holdings in other companies
| Company | Status | Stake | Shares |
|---|---|---|---|
| SIG HALVORSEN EIENDOM AS | Active | 100.0% | 90000.000000 |
| TEQVA GRUPPEN AS | Active | 80.0% | 50000.000000 |
Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 15.06.2026.