Brighton
- Zafferelli's
- Zafferelli's Restaurant
- Zakiewicz Associates Ltd
- Zamaan
- Zamdani
- Zam-Zam Tandoori
- Zanosound
- Zara M.J. & Associates
- Zeal Entertainment Ltd
- Zebra Brakes
- Zelgrain Ltd
- Zench'Uan Academy Of Martial Arts
- Zen Tree Surgeons
- Zenzie Tinker Textile Conservation Ltd
- Zero Culture UK Ltd
- Zero Degrees
- Zerofiftyone Advertising & PR
- Zerooti Hair Design
- Zingarella
- Zip 'N' Tuck