| | Jay | Phillip | JLL | Education, Factories, Health, Motor Trade, Offices, Public Authority, Retail, Warehouses | South East England, South West England, Wales |
| | Jennings | Julian | Gerald Eve | | |
| | Johnson | Tim | CBRE | Offices | London |
| | Johnson | Richard | Cushman & Wakefield | | |
| | Johnstone | Daniel | Colliers | | |
| | Jolly | Stacey | Rapleys | Offices | London |
| | Jones | David | Avison Young | | |
| | Jones | Richard | Gerald Eve LLP | Factories, Motor Trade, Warehouses | London, South East England |
| | Jones | Huw | Cooke & Arkwright | Education, Factories, Health, Leisure and Hospitality, Motor Trade, Offices, Public Authority, Retail, Warehouses | East Midlands, North West England, Scotland, South West England, Wales, West Midlands |
| | Jones | Elliot | CBRE | Offices, Warehouses | London, South East England |
| | Jones | Ryan | Cluttons | | |
| | Joseph | Alex | Avison Young | | |
| | Ke | Yee | GL Hearn | Health, Retail | East Anglia, South East England, Wales |
| | Kendrick | Karen | | | |
| | Kennedy | Jordan | Vickery Holman | Factories, Leisure and Hospitality, Motor Trade, Offices, Retail, Warehouses | South West England |
| | Kidd | Derek | GL Hearn | Factories, Leisure and Hospitality, Offices, Retail, Warehouses | Scotland |
| | Kilpatrick | Andrew | Kilpatrick & Co | Factories, Leisure and Hospitality, Motor Trade, Offices, Retail, Warehouses | London, South East England, South West England, Wales |
| | King | Ryder | Montagu Evans | Factories, Health, Leisure and Hospitality, Offices, Retail, Warehouses | London, South East England |
| | King | Philip | Gerald Eve | Education, Factories, Leisure and Hospitality, Offices, Public Authority, Retail, Warehouses | North East England, Yorkshire and Humberside |
| | Kinsey | Thomas | Gerald Eve LLP | | |
