Several organizations offer free or subsidized services to help businesses get set up and grow, so make sure to seek guidance from local business associations or chambers of commerce such as the Oslo Chamber of Commerce (Oslo Handelskammer) (chamber.no), Innovasjon Norge (Innovation Norway) (innovasjonnorge.no) and the Confederation of Norwegian Enterprise (Næringslivets Hovedorganisasjon - NHO) (nho.no). 

These institutions offer support and resources for startups and businesses looking to establish themselves in Oslo. They are helpful for navigating the specific requirements and regulations related to starting and operating a company in Oslo, offering advice, funding opportunities and access to networks.