Computer services are not part of the set of economic activities for which access is regulated (also see https://www.usp.gv.at/en/gruendung/gewerbe-in-oesterreich/reglementierte-gewerbe.html). Yet, natural and legal persons whishing to provide computer services have to declare their business activity to local authorities (Gewerbeanmeldung, also see https://www.wko.at/branchen/information-consulting/unternehmensberatung-buchhaltung-informationstechnologie/it-dienstleistung/Unternehmensgruendung.html). 