CIRCE (Centro de Información y Red de Creación de Empresas) is a system from the Ministry of Industry that allows electronic company incorporation. Instead of handling each step separately, everything is managed through a single electronic document (DUE) that communicates simultaneously with the notary, Companies Registry, Tax Agency and Social Security.
The advantage: it reduces timelines from weeks to days (48-72 hours in the best case). Only authorised Entrepreneur Service Points (PAE) can process through CIRCE. Notaría Online is a certified PAE.