Market Research in Harrow |
| Gray Cancer Institute | 01923 828611 | | Po Box 100, Northwood, HA6 2JR |  Map & Directions |
| B H E Holdings | 01923 848600 | | Valency House, Batchworth Lane, Northwood, HA6 3HD | | Map & Directions |
| Consumer Knowledge Centre | 020 8952 5888 | | Middlesex House, 29-45 High Street, Edgware, HA8 7HQ | | Map & Directions |
| The Quest Studio | 020 8954 2704 | | Mowbray House, 58-70 Edgware Way, Edgware, HA8 8DN | | Map & Directions |
| Kidslink Research Ltd | 020 8952 5888 | | Middlesex House, 29-45 High Street, Edgware, HA8 7UJ | | Map & Directions |
| G F K N O P | 020 8863 9984 | | York House, 353a Station Road, Harrow, HA1 1LN | | Map & Directions |
| T N S | 020 8782 3000 | | Wembley Point, 1 Harrow Road, Wembley, HA9 6DE | | Map & Directions |
| Ipsos Mori | 020 8861 8000 | | Kings House , Kymberley Road , Harrow, HA1 1PT | | Map & Directions |
| Jato Dynamics | 020 8423 7100 | | Carspecs House, Bessborough Road, Harrow, HA1 3XW | | Map & Directions |
| International Rubber Study Group | 020 8903 7727 | | Heron House, 109-115 Wembley Hill Road, Wembley, HA9 8DA | | Map & Directions |
| Independent Stocktakers | 01923 820174 | | 24 Wentworth Drive, Pinner, HA5 2PU | | Map & Directions |
| Criteria Fieldwork Limited | 020 8882 1442 | | 4th Floor Congress House, Lyon Road, Harrow, HA1 2UN | | Map & Directions |
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