- Air Engineering Controls Ltd - Forest Row
- Air Engineering Group - Forest Row
- Air Engineering Systems - Forest Row
- Beyond Waste Ltd - Forest Row
- Mid-sussex Timber Co. Ltd - Forest Row - Forest Row
- Olympass Security Solutions Ltd - Forest Row
- QuadraChem Laboratories Ltd - Forest Row
- Thames Executive Charters - Forest Row
- Tully de'ath Consultants - Forest Row
- Wordtrans - Forest Row