Machining of metals
DUPLOSTAG AS
Operating profit
NOK −36,000
Equity
NOK 4.1m
Incorporated
2007
Share capital
NOK 3.0m
Roles
Daglig lederMagnar Byberg
Regnskapsfører
Revisor
Styrets lederMagnar Byberg
StyremedlemHelge Byberg
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
1 of 1 companies in the same group use the same auditor.
| Company | Auditor | |
|---|---|---|
| BYBERG AS | ERGA REVISJON AS | same |
Shareholders
| Name | Stake | Shares | Year |
|---|---|---|---|
| MAGNAR BYBERG | 48.0% | 96.000000 | 2025 |
| HELGE BYBERG | 28.0% | 56.000000 | 2025 |
| KRISTIN BYBERG TØRUD | 8.0% | 16.000000 | 2025 |
| KARIN BYBERG | 8.0% | 16.000000 | 2025 |
| SOLVEIG BYBERG | 8.0% | 16.000000 | 2025 |
Holdings in other companies
| Company | Status | Stake | Shares |
|---|---|---|---|
| BYBERG AS | Active | 100.0% | 3000.000000 |
| BYBERG KLEPP AS | Active | 100.0% | 1000.000000 |
Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 15.06.2026.