- WPP 2005 LIMITED- Sea Containers House 18 Upper Ground, London, England, SE1 9GL 
- WPD 1957 LIMITED- AVONBANK FEEDER ROAD, BRISTOL, UNITED KINGDOM, BS2 0TB 
- WPHV LIMITED- SPIRELLA 2 ICKNIELD WAY, LETCHWORTH GARDEN CITY, HERTS, UNITED KINGDOM, SG6 4GY 
- WPC & CO LIMITED- THIRD FLOOR 111 CHARTERHOUSE STREET, LONDON, UNITED KINGDOM, EC1M 6AW 
- WPI GROUP LIMITED- PALM GROVE HOUSE ROAD TOWN, TORTOLA, VG1 110, VIRGIN ISLANDS, BRITISH 
- WP CHADWICK LIMITED- BERRISFORD ROW 101 BELVOIR ROAD, COALVILLE, LEICESTERSHIRE, ENGLAND, LE67 3PH 
- WPP GROUP (UK) LIMITED- 27 FARM STREET, LONDON, UNITED KINGDOM, W1J 5RJ 
- W S M SOFTWARE LIMITED- THIRD FLOOR 111 CHARTERHOUSE STREET, LONDON, EC1M 6AW 
- WP DABROWSKI- 34 HUDDERSFIELD ROAD, FLAT 5, BARNSLEY, UNITED KINGDOM, S75 1DN 
- WPS HOLDINGS LIMITED- SPARGO 10 BUDSHEAD WAY, PLYMOUTH, DEVON, GREAT BRITAIN, PL6 5FE 
- W S M SOFTWARE LIMITED- THIRD FLOOR 111 CHARTERHOUSE STREET, LONDON, UNITED KINGDOM, EC1M 6AW 
- F4G SOFTWARE LIMITED- 3A ST. VINCENT STREET, EDINBURGH, UK, EH3 6SW 
- WP BUSINESS SERVICES LIMITED- 47A VALLANCE ROAD, LONDON, ENGLAND, E1 5AB 
- WP ORCHARD- LION HOUSE RED LION STREET, LONDON, UNITED KINGDOM, WC1R 4GB 
- WPS HOLDINGS(UK)LIMITED- 12 HOPE STREET, EDINBURGH, MIDLOTHIAN, EH2 4DB 
- WP BUSINESS SERVICES LIMITED- 47A VALLANCE ROAD, LONDON, ENGLAND, E1 5AB 
- WELCOM SOFTWARE LIMITED- THE EXCHANGE STATION PARADE, HARROGATE, NORTH YORKSHIRE, HG1 1TS 
- QUANTUS SOFTWARE LIMITED- 105 SHAM PENG TONG PLAZA, VICTORIA, MAHE, SEYCHELLES 
- RENATO SOFTWARE LIMITED- 11 HIGH STREET RUDDINGTON, NOTTINGHAM, NOTTINGHAMSHIRE, ENGLAND, NG11 6DT 
- BENTHAM SOFTWARE LIMITED- 15 RYE STREET, RYE STREET, BISHOPS STORTFORD, HERTFORDSHIRE, ENGLAND, CM23 2HA