An External Company in the Skill Engine API represents any external company. They can be used to match against, using the Vacancies that are linked to them. Employment and staffing customers can match candidates with external companies, even when they do not have an explicitly advertised position. Enterprise customers can use External Companies too to profile and compare themselves to other External Companies. More info about External Companies can be found on the How it Works page and the External Company tutorial. Custom Properties are supported for this entity.