Location Management contacts:
http://filmlondon.org.uk/filming_in_london/planning_your_shoot/find-location
http://www.ukfilmcouncil.org.uk
https://www.fidens.co.uk/location-agents/locations
http://www.creativeengland.co.uk
Useful contacts:
https://tfl.gov.uk/info-for/media/filming-and-photography
http://www.bbc.co.uk/travelnews/london
http://www.theknowledgeonline.com/search/Location_Management_Companies