Companions and escorts are not spread evenly across the country. In the Randstad there is choice on almost any date; in the north and in Zeeland considerably less. That works through into the final amount twice over: through travel costs, and through the minimum duration that rises with distance.
In practice it comes down to this. Booking in the Randstad allows a choice on character and on rate. Booking outside it means choosing first on availability and travel distance. In both cases, requesting well ahead helps.
Amsterdam
Het grootste aanbod en de kortste reistijden
Rotterdam
Ruim aanbod, korte lijnen naar Brabant en Zeeland
Den Haag
Aanbod voor stad en kust
Utrecht
Centraal, en daardoor vanuit alle richtingen bereikbaar
Eindhoven
Brabant, met korte lijnen naar Vlaanderen
Groningen
Noord-Nederland, met langere reisafstanden
Antwerpen
België, met bediening aan beide kanten van de grens
What the home city in a profile means
The home city is the address somebody sets out from, and therefore the basis for travel costs. A profile without one makes those costs unpredictable, which is a reason to ask further. Agencies state it as standard, as can be seen with the male companions of The Men's Company.
Each region is covered in full in Dutch under regio's.