CMT Installers
| British Geological Survey |
Dr. Rachel Dearden | 28 Jan 2011 | Nottingham | UK |
| GeoSonic Drilling Ltd. | Andy Condron | 7 May 2014 | Alloa | UK |
| John Wood | Alloa | UK | ||
| Neil Grew | Alloa | UK | ||
| Mark Henderson | Alloa | UK | ||
| Jamie Johns | Alloa | UK |
| Geotron UK Ltd. | Dennis van Enk | 7 May 2014 | Mossley | UK |
| TOR Drilling | Charlie Lock | 3 Jan 2017 | Glastonbury | UK |
| Jonathan Moore | Glastonbury | UK | ||
| Dan Iles | Glastonbury | UK | ||
| Anthony Duckett | Glastonbury | UK | ||
| Steve Sutton | Glastonbury | UK | ||
| Mark McKinney | Glastonbury | UK | ||
| Nic Raynek | Glastonbury | UK | ||
| Jonathan Whittle | Glastonbury | UK | ||
| Marcus Puddy | Glastonbury | UK | ||
| Paul Whittle | Glastonbury | UK | ||
| Paul Golledge | Glastonbury | UK | ||
| Kevin Lavender | Glastonbury | UK | ||
| Simon Williams | Glastonbury | UK | ||
| Aaron Reeves | Glastonbury | UK | ||
| Jonny Whittle | Glastonbury | UK |