- Caird Bardon Limited
- Cape Industrial Services Ltd
- Deborah Services Limited
- Heritage Stone (North Yorks) Limited
- Herring Plant Hire Ltd
- Hertel Total Asset Management Ltd
- Hertel UK Ltd
- Hewden Services Ltd
- Impetus Waste Management Ltd
- Interserve Industrial Services Ltd
- John Hall
- Kitsons Environmental Europe Ltd
- Mavis Plant Hire Ltd
- McAlpine Infrastructure Services
- Mr Philip Stevenson
- NSG Limited
- Rainham Industrial Services Ltd
- Redcar & Cleveland Borough Council
- S. G. S. Limited
- SembCorp Utilities (UK) Ltd
- SGM (UK) Limited
- Simply landscaping
- ThyssenKrupp Palmers Ltd
