Powerkut Ltd

Powertrain Technology Ltd

PPD

Precision Investment Castings Ltd

Premax Engineering Ltd

Prism Electronics Ltd

Product Assessment & Reliability Centre Ltd

Profin Protective Finishing Ltd

Propak Sheet Metal Ltd

Prosig Ltd

Protocon Engineering Ltd

Pyser Optics SGI Ltd

Quality Control Technology Ltd

Queens University Belfast

Quelch Engineering

Randle Engineering Solutions Ltd

Ranger Instruments

RDP Electronics Ltd

Redmayne Engineering Ltd

Revolve Technologies Ltd

Rewinds & J Windsor & Sons (Engineers) Ltd

Rhopoint Metrology Ltd

Ricardo UK Ltd

Ricardo UK Ltd

Ridsdale & Co Ltd