The Association of Government Translators in Norway (STF) maintains a website where all government authorized translators in Norway are listed. The website allows you to select the languages you require translation services for, and will list the appropriate translators upon clicking the “search” button. You may also view a complete and alphabetized list of all translators.
The website is available in English, as well as Norwegian and other languages, and can be found here: https://www.translatorportalen.com/en/home/
Disclaimer: This link will take you to a website outside the United States government. The Embassy is not responsible for the contents or maintenance of this website.