Electronic Engineers
| Checksum Ltd 53 Marland Fold OL11 4RF 01706 653793 Electronic Engineers |
| Circuitmaster Designs Ltd Unit 1a Kingsway Business Park Moss Bridge Rd OL16 5LW 01706 630606 Electronic Engineers |
| RTL Retrospective Techniques Ltd Units 3 & 4 The Bungalow Site Top End Of Rugby Rd OL12 0DZ 01706 644620 Electronic Engineers |
| Tecnicon Electronics Unit 7 Southgate Green La Heywood OL10 1ND 01706 627207 Electronic Engineers |