Plumbing installation
SIG HALVORSEN AS
Incorporated
1996
Employees
241
Share capital
NOK 500,000
Roles
Daglig lederTor Jakob Dysjaland
Revisor
Styrets lederDag Halvorsen
StyremedlemKåre Ravndal
StyremedlemHåvard Tjessem
StyremedlemEli Halvorsen Norheim
StyremedlemDina Edland Stangeland
StyremedlemTove Linn Bjørnå
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 |
| HALVORSEN INVESTERING AS | ERGA REVISJON AS | same |
| NORELCO ELEKTRO AS | ERGA REVISJON AS | same |
| RØNNING ELEKTRO AS | ERGA REVISJON AS | same |
| SIG HALVORSEN EIENDOM AS | ERGA REVISJON AS | same |
Shareholders
| Name | Stake | Shares | Year |
|---|---|---|---|
| TEQVA GRUPPEN AS | 100.0% | 500.000000 | 2025 |
Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 15.06.2026.