Oakdene Hollins Ltd

ODE Ltd

OHS Ltd

Ondeo Industrial Solutions

Optimum Oils Ltd

OPTIS Europe Ltd

Orkney Sustainable Energy Ltd

Oxera Consulting LLP

Pakawaste Ltd

Peter Brett Associates

Philip Tyler Polymers Ltd

Phoenix County Metals Ltd

PHS Group plc

PI (Physik Instrumente) Ltd

Plan B Management Solutions

Powervac Ltd

Pro-face UK Ltd

Prodware (UK) Ltd

Pure Solve

QBS

Queens University Belfast

RCP Engineering Ltd

Reading Agricultural Consultants

Recolight

Reconomy

Recoup

Redland Recycling International Ltd

Resource Futures

Rhodar Ltd

Ricardo-AEA

Ricardo-AEA

Rivertrace Ltd

Robert S Maynard Ltd

Rolton Group Ltd

Royal Haskoning DHV

Royal Society for the Prevention of Accidents

RPS Group

RSK

Safetykleen UK Ltd

SEB International Ltd

Silverdell (UK) Ltd

SIMS Group UK

Smarter Business

Smith Bellerby Ltd

SSI Schaefer Ltd

Standards Plus Ltd

Stewart Commercials Ltd

SUEZ Recycling & Recovery

Tarcc

Technica Ltd