Prism Electronics Ltd

Prism Media Products Ltd

Prizehawk Ltd

Probe Design Solutions

Protool Precision Engineering

Protronix EMS

Pyramid Tool & Die Co

Qualtech Ltd

Quantek Ltd

Queens University Belfast

R Gorton & Associates (Electronics) Ltd

R&D Clarke Precision Engineers Ltd

RA Frisby

Radix Electronic Design Ltd

Ram Power Ltd

Randle Engineering Solutions Ltd

Rapitypes Ltd

RDM Group

Red Arete Ltd

Reddiroll Ltd

Redsoul Design Ltd

Reliance Precision Ltd

Resonates SLM Ltd

Retrac Productions Ltd

Revolve Technologies Ltd