Gas - Testing - Medical in Liverpool, Merseyside
| Name & Address | Phone # | Website |
| Digalog Systems Unit B30B/Small Business Centre, Liverpool, Merseyside L3 4BD | 0151-330 0395 |  |
| Gas Elec 7 Chaloner Gr, Liverpool, Merseyside L19 0PT | 0151-494 0999 |  |
| Hignett Tachograph Analysis North Mersey Business Centre, Liverpool, Merseyside L33 7UY | 0151-546 9665 | |
| Instruments To Industry Ltd Woodward Road, Liverpool, Merseyside L33 7UZ | 0151-546 4943 | |
| Isocal UK Ltd Unit 7/North Mersey Business Centre, Liverpool, Merseyside L33 7UZ | 0151-546 4373 | |
| Public Analyst Laboratory 126 Mount Pleasant, Liverpool, Merseyside L69 3RR | 0151-709 3932 | |
| T E Johnston & Co (Marine) Ltd 6 Cotton Street, Liverpool, Merseyside L3 7DY | 0151-298 2633 | |
| Tapley Instrumentation Stretton Way, Liverpool, Merseyside L36 6JF | 0151-481 3108 | |
| W M P Services Commerce Way, Liverpool, Merseyside L8 7BA | 0151-707 3554 | |
| Wakefield Inspection Services Ltd 205 Cotton Exchange Building, Liverpool, Merseyside L3 9LQ | 0151-236 0752 | |
