- Adapt Life - Isleworth
- Adini - Isleworth
- Archers - Isleworth
- Bunzl Greenham - Isleworth
- Capri Foods Ltd - Isleworth
- Contact Electrical Distributors Ltd - Isleworth
- CP Cases Ltd - Isleworth
- D I B S Distribution - Isleworth
- Failsafe Power Supplies Ltd - Isleworth
- FDB Electrical Ltd - Isleworth
- FDB Panel Fittings Ltd - Isleworth
- Kelly Hydraulics Ltd - Isleworth
- Knapp Hicks & Partners - Isleworth
- Language Source Ltd - Isleworth
- Linear Tools - Isleworth
- Newmont Engineering Co Ltd - Isleworth
- Ormiston Wire Ltd - Isleworth
- Rotowash Ltd - Isleworth
- Stationery Express - Isleworth
- Valradio - Isleworth