Metropolitan Line

Harrow on the Hill Group
Harrow on the Hill,West Harrow, Rayners Lane, Eastcote, Ruislip Mannor, Ruislip, Ickenham, Hillingdon and Uxbridge

Rickmansworth Group
Amersham, Chalfont & Latimer, Chesham, Chorleywood, Rickmansworth, Watford, Croxley, Moor Park, Northwood, Northwood Hills, Pinner and North Harrow.

Train Crew Depots
Rickmansworth, Harrow on the Hill and Neasden

Service Control and Signal Cabins
Amersham Cabin, Rickmansworth Cabin, Rayners Lane Cabin, Harrow on the Hill Cabin, Allsop Place (Met Control) and Neasden Train Movements Room (Neasden Depot Tower)

Revenue Control
Wembley Park and Baker Street