| ACCM SOUTHWEST LIMITED | 13361783 | - | - | - |
| AMD Electrical | 16350703 | - | - | - |
| Amelio Utilities Limited | NI721461 | - | - | - |
| Aqua Management Limited | 07601455 | - | - | - |
| AT Group (SW) Ltd | 13894778 | - | - | - |
| Austin's Contractors Ltd | 04620491 | - | - | - |
| BARNFIELD ENGINEERING SERVICES LIMITED | 03171327 | - | - | - |
| Bartlett Contractors Limited | 03815196 | - | - | - |
| BRIDGES (ELECTRICAL ENGINEERS) LIMITED | 02837204 | - | - | - |
| B.W. Controls Limited | 02143442 | - | - | - |
| BW CONTROLS LIMITED | 02143442 | - | - | - |
| B WILTSHIRE ELECTRICAL LIMITED | 15321520 | - | - | - |
| B WILTSHIRE ELECTRICAL LIMTED | - | - | - | - |
| Cambrian Civil Engineering Ltd | 15085107 | - | - | - |
| C D Read Building Services Ltd | 05872373 | - | - | - |
| C.I.W. ELECTRICAL SERVICES LIMITED | 12487043 | - | - | - |
| C&N Electrical Services Limited | - | - | - | - |
| C. & P. ENGINEERING SERVICES LIMITED | 01140574 | - | - | - |
| C Squared Construct Limited | 12745943 | - | - | - |
| Dave Lucey Limited | 03740267 | - | - | - |
| Davis Groundworks Limited | 05844324 | - | - | - |
| DEVON & CORNWALL DC POWER LIMITED | 04407349 | - | - | - |
| Direct Utility Solutions Ltd | 09399351 | - | - | - |
| D.M.S. ENGINEERING LIMITED | 03381920 | - | - | - |
| DOWLING AND COSH LIMITED | - | - | - | - |
| Dowling & Cosh Ltd | 08487301 | - | - | - |
| D.P. Burridge (Developments) Ltd | 04788482 | - | - | - |
| Earthstone Construction Ltd | 12683039 | - | - | - |
| ECOGENR8 LIMITED | 07455556 | - | - | - |
| EDRON ENGINEERING LIMITED | 09818846 | - | - | - |
| ELECTRICAL AND PUMP SERVICES LIMITED | 07522664 | - | - | - |
| Electrical & Mechanical Solutions Limited | 07131073 | - | - | - |
| Electrical & Pump Services Ltd | - | - | - | - |
| ELG Civil and Mechanical Engineering Ltd | 10945206 | - | - | - |
| Envolve infrastructure ltd | 01835363 | - | - | - |
| E T M Contractors Limited | 02970707 | - | - | - |
| FAIRFIELD ELECTRICAL 1971 LIMITED | 01332782 | - | - | - |
| FOREST ELECTRICAL SERVICES LIMITED | 03083906 | - | - | - |
| F W Huxter Groundworks and Civil Engineering Limited | 06508754 | - | - | - |
| GA UK GROUP LIMITED | 11793014 | - | - | - |
| Galliford Try Construction Limited | 02472080 | - | - | - |
| GEEMEC LIMITED | 09490081 | - | - | - |
| GEL ENGINEERING LIMITED | 08032283 | - | - | - |
| Glanville Cleansing Ltd | 03955582 | - | - | - |
| Going Group Ltd | 12622790 | - | - | - |
| Greenwood Construction Limited | 07998698 | - | - | - |
| HANEVO LIMITED | 07941293 | - | - | - |
| Hercules Site Services PLC | 06607001 | - | - | LOBBYISTSEC Newgate UK Limited (2 quarters) |
| H. M. ELECTRICAL SERVICES (1996) LIMITED | 03354976 | - | - | - |
| IES Utilities Group Ltd | 11262423 | - | - | - |
| INTEGRATED WATER SERVICES LIMITED | 05283349 | - | - | - |
| Ipsum Group Limited | Charity Commission: 1176614 Companies House: 10566393 | - | - | - |
| J. Carney Construction Ltd | 03525656 | - | - | - |
| J Hardy Civils Limited | 12974136 | - | - | - |
| J.J. ELECTRICAL LIMITED | 04408322 | - | - | - |
| J M O'Toole Ltd | 05587899 | - | - | - |
| J.W. Groundworks Limited | 07995186 | - | - | - |
| K. Gregory Construction Limited | 07148088 | - | - | - |
| KNOWLTON AND NEWMAN LIMITED | 04690033 | - | - | - |
| Lynwood Civil Engineering Limited | 04299355 | - | - | - |
| Matthew Luke Plumbing & Heating Limited | 06004535 | - | - | - |
| MAX WRIGHT LIMITED | 00915896 | - | - | - |
| MBBELLS LIMITED | 11205643 | - | - | - |
| MBH INDUSTRIAL SERVICES LIMITED | 02948478 | - | - | - |
| McAllister Bros Limited | NI020460 | - | - | - |
| MEM Site Services Ltd | 15133534 | - | - | - |
| Mildren Construction Limited | 02136748 | - | - | - |
| MILLS ENGINEERING SERVICES LIMITED | 06855131 | - | - | - |
| MSEL SERVICES LIMITED | 11032632 | - | - | - |
| Network Plus Services Limited | 04057938 | - | - | - |
| NIGHTJAR ENGINEERING AND CONSTRUCTION LIMITED | - | - | - | - |
| NPB Utilities Limited | 07641083 | - | - | - |
| OCU NORTHAVON GROUP LIMITED | 02516226 | - | - | - |
| OCU Utility Services Ltd | 02916906 | - | - | - |
| OnSite Central Limited | 02712788 | - | - | - |
| PEARCE AND WYATT SERVICES LIMITED | - | - | - | - |
| Pearce & Wyatt Services Limited | 05042038 | - | - | - |
| Phil Bridges & Son Electrical Limited | 08992270 | - | - | - |
| PRO ELECTRO LIMITED | 07980155 | - | - | - |
| Promec Engineering Limited | 06724413 | - | - | - |
| PUMP SUPPLIES LIMITED | 01628083 | - | - | - |
| RENN CONSULTANCY LIMITED | 13766231 | - | - | - |
| rhames Limited | - | - | - | - |
| R Howard Utilities Ltd | 12964076 | - | - | - |
| R&W Langley Limited | 04114488 | - | - | - |
| SAMATRIX LIMITED | 04147172 | - | - | - |
| SAN ELECTRICAL LIMITED | 08758590 | - | - | - |
| S & A Utilities Ltd | - | - | - | - |
| SDR Metal Fabrications LLP | OC438106 | - | - | - |
| Sherborne Utilities Ltd | 07714742 | - | - | - |
| SILON ENGINEERING AND CONSTRUCTION LIMITED | 09256252 | - | - | - |
| SOUTH HEAT AND ELECTRICAL LIMITED | - | - | - | - |
| S&S Southwest Construction Ltd | 15110649 | - | - | - |
| Stonbury Ltd | 01721842 | - | - | - |
| Suttle Projects Limited | 06734695 | - | - | - |
| Swanside Limited | 03225640 | - | - | - |
| THE COURIER COMPANY LTD | - | - | | - |
| TJB Plant Hire | - | - | - | - |
| Tork Limited | 04030005 | - | - | - |
| TOTAL AUTOMATED SOLUTIONS LIMITED | 06193764 | - | - | - |
| Trant Engineering Ltd | 00769274 | - | - | DONOR£15K across 2 donationsTo: Conservative and Unionist Party |
| UKSE Group Limited | 10446757 | - | - | - |
| United Infrastructure Water Limited | 02673066 | - | - | - |
| Unitspark Limited | 02175157 | - | - | - |
| Velta Construction Limited | 12247181 | - | - | - |
| Woodmace Concrete Structures Limited | 09137354 | - | - | - |
| XYLEM WATER SOLUTIONS UK LIMITED | 00479504 | - | - | - |