Madrid is an ideal city to do business, and that is the reason why many companies have their headquarters in Madrid or at least have facilities to opérate and do business in the city. These are the main companies based in Madrid, classified by economic área:

Banking: Santander, BBVA

Communications: Telefónica, Orange, Vodafone

Aviation: Iberia, Airbus

Infraestructures: AENA, Técnicas Reunidas

Cars: Mercedes, IVECO, 

Energy and raw materials: Repsol, Cepsa, Endesa, Naturgy, Gas Natural, Engie, Pavilion Energy, Galp, BP, Nexus, Met, Total.

Retail: El Corte Inglés, Carrefour, Alcampo, Día, Leroy Merlín

Entertainment: Loterías y Apuestas del Estado, ONCE

Chemical: Moderna, Cofares

Tecnhnology: Indra, Amadeus