- Air Tightness Testing & Measurement Association (ATTMA) - Amersham
- Ariane Poole Cosmetics UK - Amersham
- Atomisation Ltd - Amersham
- B C M P A - Amersham
- Big Green Smile - Amersham
- Grand View Container Trading UK Ltd - Amersham
- GSI Contract Services Ltd - Amersham
- Halma P.L.C. - Amersham
- Halstan & Co. Ltd - Amersham
- HAMLET VIDEO INTERNATIONAL LTD - Amersham
- Homeguard Security Systems - Amersham
- IQ Projects - Amersham
- Light Solutions - Amersham
- Ligne Roset - Amersham
- Martin Moore - Amersham
- Melford Technologies Ltd - Amersham
- Quinton Cavendish Ltd - Amersham
- Radclyffe Associates Ltd - Amersham
- Securon - Amersham
- Sterling Softeners - Amersham
- Top Hat Marquees - Amersham
- Track Components Ltd - Amersham
- Woodlands Dental Laboratory - Amersham