- 121 Computers - 105 Victoria Road, Diss, Norfolk, IP22 4JG
- 121 security - Unit 14, Port Talbot, SA12 7BR
- 123 Connect Ltd - 101 Stansfield Road, Benfleet, Essex, SS7 4NA
- 123 Insight Ltd - Unit 10, Southampton, Hampshire, SO32 2EJ
- 123Print UK - 91 Clydesdale Place, Leyland, Lancashire, PR26 7QS
- 123-Success - 319 Wilmslow Rd, Cheadle, Cheshire, SK8 3PW
- 123v plc - Edgcott House, Aylesbury, Buckinghamshire, HP18 0QW
- 12AM Projects - 71-75 Shelton Street, London, London, WC2H 9JQ
- 1-2-Print - 10 Buckhurst Road, Bexhill-on-Sea, East Sussex, TN40 1QF
- 1666 Fire Ltd - Unit 5 Daisy Business Park 19-35, London, Greater London, SE15 1PD
- 1Cold Ltd - Claybank Farmhouse, Solihull, B94 5PY
- 1G Dynamics - Manor Farm, Royston, Cambridgeshire, SG8 7SH
- 1GS Security - Office 35, London, London, NW11 8LN
- 1SC Guarding - 48 Skylines Village, London, Greater London, E14 9TS
- 1Security Systems - 85 Great Portland Street, London, W1W 7LT
Companies 16 to 30 | Page 2 of 19
