Allen Vanguard Ltd

Armson-Boult Ltd

Aspland Gauge Co Ltd

ATS Quality Products Ltd

Baty International

Bowers Group

Brammer Buck & Hickman

British Rototherm Co Ltd

Conway Precision Engineering Group Ltd

Correct Gauge & Tool Ltd

Electro Group Ltd

Engineering & Gauge Services

H Roberts & Sons (Dial Indicators) Ltd

Hallward Tools Ltd

Hexagon Metrology UK Ltd Tesa Division

James Gibb & Co Ltd

Linear Tools Ltd

Longs Ltd

Mapra Technik Co

Metrology & Quality Services Ltd

Metrology International Ltd

Mitutoyo (UK) Ltd

Powell Manufacturing Co (Coventry) Ltd

Power Tools UK

Powerkut Ltd

Preisser UK Ltd

Premier Farnell UK Ltd

Quasartronics Ltd

Rhopoint Metrology Ltd

Solartron Metrology

Starrett Precision Optical Ltd

Templeton Tools & Machinery Ltd

The Sempre Group

Verdict Gauge Ltd

Yorkshire Precision Gauges Ltd