I know that Promods is not limited to observing the population, hence my suggestions as citizen of this country. Actually, I'm just trying to help.
Then follows a list with the turnover of the non-financial companies above € 3,000,000,000 in the year of 2016 by cities.
As we can see, there is LISBOA (Amadora, Cascais, Lisbon, Loures, Oeiras, Sintra), PORTO (Maia, Matosinhos, Oporto, Vila Nova de Gaia), BRAGA (Barcelos, Braga, Guimarães, Vila Nova de Famalicão), SETÚBAL (Setúbal, Palmela), LEIRIA and Santa Maria da Feira (again).
Now a map of portuguese ports.
Port of Viana do Castelo (Hinterland) - "Red List of port operation capacity for shipowners"
Port of Leixões (Regional Hinterland) - "Yellow List of port operation capacity for shipowners"
Port of Aveiro (Hinterland Regional) - "Red List of port operation capacity for shipowners"
Port of Figueira da Foz (Hinterland Regional) - "Red List of port operation capacity for shipowners"
Port of Peniche (Fishing / Recreation) - "Red List of port operation capacity for shipowners"
Port of Lisbon (Hinterland Regional) - "Red List of port operation capacity for shipowners"
Port of Cascais (Fishing / Recreation)
Port of Sesimbra (Fishing / Recreation)
Port of Setúbal (Hinterland Regional) - "Yellow List of port operation capacity for ship owners"
Port of Sines (Transshipment "Transshipment" / National Hinterland and Trans-European Network) - "Green list of port operation capacity for shipowners"
Port of Lagos (Fishing / Recreation)
Port of Faro (Hinterland Regional) - "Red List of port operation capacity for shipowners"
Port of Vila Real de Santo António (Fishing / Recreation)
And airports.