| Notes |
Bradford Wireless Society. Cardiff and South Wales Wireless Society. Chelmsford Wireless Club. Chiswick, Acton and District Amateur Wireless Association. Edinburgh Wireless Club. Glasgow and District Radio Club. Halifax Wireless Club, Liverpool Wireless Association. London. Wireless Society of London. Wireless and Experimental Association. Manchester Wireless Club. Newark-on-Trent Wireless Society. North Middlesex Wireless Club. Nottingham Wireless Club. Plymouth, Three Towns Wireless Club. Sheffield and District Wireless Society. Stockport Wireless Society. Stoke-on-Trent Wireless Club |