Alca Tools Ltd

Armson-Boult Ltd

Aspland Gauge Co Ltd

ATS Quality Products Ltd

Berger Tools Ltd

Bowers Group

CNC Speedwell Ltd

Conway Precision Engineering Group Ltd

Correct Gauge & Tool Ltd

Diatest (UK) Ltd

Engineering & Gauge Services

H Roberts & Sons (Dial Indicators) Ltd

Hallward Tools Ltd

Hexagon Metrology UK Ltd Tesa Division

Intra Ltd

James Gibb & Co Ltd

Mapra Technik Co

Marposs Ltd

Martyndale Machine Tools

Meltham Carbide Precision Ltd

Metrology International Ltd

Mincon Carbide Ltd

Monks & Crane

Power Tools UK

Powerkut Ltd

Precision Ball & Gauge Co

Preisser UK Ltd

Quasartronics Ltd

Rhopoint Metrology Ltd

Templeton Tools & Machinery Ltd

The Brian Smyth Co

The Original Gauge Co Ltd

The Sempre Group

Threadmaster Gauges Ltd

TN United Kingdom Ltd

Tru-Thread Ltd

Verdict Gauge Ltd

Yorkshire Precision Gauges Ltd