19 Heilizenstradt, Vienna, Austria 30 Whitehead's Grove, then 10a Elystan St., Chelsea, London, England Addlestone, Surrey, UK Albertfalva, Budapest, Hungary Austria Barcelona Belfast, Ireland Bognor Regis, West Sussex, England Bradford, England Britain Cathcart, Glasgow, Scotland Chelsea; offices apparently on St. James St., London, England constructed at Polson Iron Works, Toronto; offices appear to have been in New York, NY. Coventry Coventry, England Cricklewood, London Dalmuir, Dumbartonshire, Scotland; Parkhead Forge, Glasgow, Scotland Dumbarton East Cowes; West Cowes; Isle of Wight East Cowles, Isle of Wight Eastbourne factory and slipway on Southampton Water Factory at Brooklands before moving to Manchester and then Newton Heath; second factory, 1916, at Hamble, near Southampton. Flying school, established 1910 at Brooklands, moved to Shoreham, 1911. Factory at Filton, near Bristol, England; flying schools at [[Larkhill]] in Salisbury and at Brooklands. Freshfield, Formby, Merseyside, England. Fullham, London, England Gosforth (Tyneside) and ? head office at Surrey; aerodrome at Brooklands; additional office, London, all England. Hendon Humber Works, Stoke, Coventry, in the County of Warwick Ipswich, Suffolk, England King's Lynn, Norfolk and Stroud, Gloucestershire; England Leeds, England Leeds, Olympia, and Sherburn-in-Elmet Leighton Buzzard Leiston, Suffolk, Britain Lincoln London Aerodrome, Collindale Ave, Hendon, England Longbridge Works, Northfield, Birmingham; also London office; and Liancourt, France (all as of 1920) Middlesex Mivart St., Bristol, England Mousehold Aerodrome, apparently with offices at Rose Lane Works, both Norwich (plus London office by 1920) Norwich, England office in Edgware; flying school and place for construction at Hendon office on Cromwell Road, London SW Old Drill Hall, Townshend Road, Richmond, Surrey, England Old Kilpatrick on Clyde estuary Originally at Huntingdon; then slip-way at Sussex County Aero Club, Shoreham, and shed at Shoreham Aerodrome, England Parkside, Coventry, England Peterborough, England Portholme Aerodrome, Huntingdon, England Regent St, London, England Shoreham, England South Farnborough, Hants (within or quite near Farnborough, Hampshire) Southport, Britain Surbiton The Hyde, Hendon Valbuena, Mexico west of Yeovil, England Wolverhampton, England Woolston, Southampton, England; South Farmbridge XXI Stadtlau, Vienna, Austria