noun
registered contractor; registered business operator
Refers to a business or contractor that has been officially registered, often with a government agency or industry body.
この工事は登録業者だけが入札できます。
Only registered contractors can bid on this construction project.
登録業者として県に申請する必要がある。
You need to apply to the prefecture as a registered business operator.
Compound of 登録 (registration) and 業者 (business operator, contractor).