Gas - Testing - Medical in Birmingham, West Midlands
| Name & Address | Phone # | Website |
| Churchill Products Ltd Neptune House, Birmingham, West Midlands B9 4EG | 0121-773 9201 |  |
| Document Evidence Ltd 172 Holliday Street, Birmingham, West Midlands B1 1TJ | 0121-643 0990 |  |
| Frenco International Ltd Station Road, Birmingham, West Midlands B46 1JN | 01675 463046 | |
| Merlin Calibration Services Ltd Unit 16/The Business Centre, Birmingham, West Midlands B11 2BA | 0121-764 6477 | |
| Micron Metrology 2000 Ltd Unit 10/Garretts Green Trading Estate, Birmingham, West Midlands B33 0TD | 0121-784 7498 | |
| Quality Control Metrology Services Ltd Unit 10/Holly Pk Industrial Estate, Birmingham, West Midlands B24 9PB | 0121-377 8989 | |
| Trace Laboratories 66a Birchwood Cresent, Birmingham, West Midlands B12 8BW | 0121-442 4103 | |
| Tudor Products Waterloo Road, Birmingham, West Midlands B25 8LH | 0121-706 5555 | |
