- Active Sports Surfaces Ltd
- Bierrum International Ltd
- BIS Industrial Services
- Caird Bardon Limited
- Cape Industrial Services Ltd
- Chieftain Contracts Ltd
- ConocoPhillips Petroleum Co UK Ltd
- Deborah Services Limited
- Dragon LNG Ltd
- Grant Rail
- Green Estate Ltd
- Greenfields (Allsports) UK Ltd
- Groundwork North East
- Hartlepool Borough Council
- Heritage Stone (North Yorks) Limited
- Herring Plant Hire Ltd
- Hertel Total Asset Management Ltd
- Hertel UK Ltd
- Hewden Services Ltd
- IESA Ltd
- Impetus Waste Management Ltd
- Interserve Industrial Services Ltd
- Kitsons Environmental Europe Ltd
- Leeds City Council
- Mavis Plant Hire Ltd
- McAlpine Infrastructure Services
- Millcroft Services Plc
- Millets Vegatables
- NSG Limited
- Polytan Sports Surfaces (UK) Ltd
- Promanex (Construction & Maintenance Services) Ltd
- Pyeroy Ltd
- Opus Industrial Services Ltd
- Rainham Industrial Services Ltd
- Ray Britland Contractors Ltd
- Redcar & Cleveland Borough Council
- Redhall Engineering Solutions Ltd
- S. G. S. Limited
- SembCorp Utilities (UK) Ltd
- SGM (UK) Limited
- Simon Carves Ltd
- Simply landscaping
- Speedy Assett Services Ltd
- SouthTyneside Council
- Syntex Engineering Services Ltd
- SYS (Scaffolding Contractors) Ltd
- Taylor Woodrow
- Tees Valley Wildlife Trust
- Thermal Energy Construction
- ThyssenKrupp Palmers Ltd
- Tindall Contractors
- TRAC Engineering UK
- Vange Scaffolding Ltd
- W Wardman
