- Annodata - Kings Langley
- C and S Ltd - Kings Langley
- Chiswell Leisure Ltd - Kings Langley
- Cosmographics Ltd - Kings Langley
- Cross Graphics Ltd - Kings Langley
- EWB Solutions Ltd - Kings Langley
- Filmtek Ltd - Kings Langley
- Flame Ltd - Kings Langley
- Flexelec - Kings Langley
- G P S Document Management - Kings Langley
- I P S Fencing - Kings Langley
- Imagination Technologies Ltd - Kings Langley
- JK Engineering Holdings Ltd - Kings Langley
- Langley Labels Ltd - Kings Langley
- Manufacturers Supplies Acton Ltd - Kings Langley
- Marlowe Digital - Marlowe Graphic Services - Kings Langley - Kings Langley
- Martor UK Ltd - Kings Langley
- Oliver Buggy Hire - Kings Langley
- Pure - Kings Langley
- Renewable Energy Systems - Kings Langley
- Safer Life - Kings Langley
- Separ Distribution (UK) - Kings Langley
- Spectrum Electrical Solutions UK Ltd - Kings Langley
- Squad Security - Kings Langley
- Studiorip - Kings Langley
- WJ Groundwater Ltd - Kings Langley