| David Sumner | director | at Brad. J. Engineering Services Limited | · Wolverhampton |
| David Samuel Sumner | director | at Tudorose Hosiery | · Willenhall |
| Peter David Sumner | director | at Polyandra LTD | · Birmingham |
| Peter David Sumner | secretary | at Wellard LTD | · Birmingham |
| Peter David Sumner | secretary | at Arc Contracts LTD | · Birmingham |
| David H. Sumner | Director | at Breakwells | · Birmingham |
| David Sumner | director | at DPL (Uk) Limited | · London |
| David Sumner | Insurance | at Phoenix Liability Services | · Mold, Flintshire |
| David Sumner | director | at DSHV Solutions LTD | · Newark on Trent |
| David Sumner | director | at Drapers' Hall | · London |
| David Sumner | director | at Dew Construction (Oldham) Limited | · Manchester city centre |
| David Sumner | secretary | at Core Building Services LTD | · Altrincham |
| David Sumner | director | at Medwood Projects LTD | · London |
| David Sumner | director | at DCT Plant Limited | · Manchester city centre |
| David Sumner | director | at DCT (Renewable Energy Projects) Limited | · Manchester city centre |
| David Sumner | Partner | at Vintage Tractor Spares | · Lutterworth |
| David Sumner | director | at DCT Holdings Limited | · Manchester city centre |
| David Sumner | director | at SITR UK Ltd | · Middlewich |
| David Sumner | Chief Executive Officer, Director | at Medicsight Plc | · London |
| David Sumner | director | at Plated Strip (International) Limited | · London |
| David Sumner | director | at St. Pirans Court Management Company Limited | · St Ives, Cornwall |
| David Sumner | Member | at Sumner, David | · London |
| David Sumner | Member | at Advantage Home Construction Insurance (AHCI) | · Warrington |
| David Sumner | secretary | at Bloemendaal Garden Centre Limited | · Manchester |
| David Sumner | Member | at Deloitte & Touche | · Hill, Gloucestershire |
| David Sumner | director | at Top of the World Mega Corp Limited | · Royal Tunbridge Wells |
| David Sumner | director | at Hallco 732 | · Oldham |
| David Sumner | Member | at Davys Locker | · West Down, Devon |
| David Sumner | Investment Banking | at Hollbeach Solutions LLP | · London |
| David Sumner | director | at Sd Nationwide Services Limited | · Dunbar |
| David Sumner | Member | at David Sumner | · Cardiff |
| David Sumner | Managing Director | at Andrew Sumner &Associates LTD | · Manchester |
| David Sumner | Legal Services | at Larcomes Legal Limited | · Portsmouth |
| David Sumner | director | at D C T Civil Engineering Limited | · Manchester city centre |
| Robert David Sumner | director | at Jacks Limited | · Rotherham |
| John David Sumner | director | at Vanguard Building Services Limited | · Accrington |
| John David Sumner | director | at Vanguard Industrial Limited | · Liverpool |
| John David Sumner | director | at Vanguard Industrial Engineering Limited | · Accrington |
| John David Sumner | director | at Vanguard Packing Ltd | · Lincoln, England |
| John David Sumner | director | at Vanguard Shipping Limited | · Blackburn |
| Richard Anthony David Sumner | director | at Ja International Limited | · Woodbridge, Suffolk |