| Hia Power Electrical Services Limited | 2026 | 5 Nov 2027 (in 388 days) |
| HJ Media & Security Limited | 2022 | 31 Oct 2027 (in 383 days) |
| Horizon Energy Systems Limited | 2026 | 14 Jun 2028 (in 610 days) |
| Hunter Collins Ltd | 2019 | 31 Dec 2026 (in 79 days) |
| Ies UK Limited | 2006 | 31 Dec 2026 (in 79 days) |
| Imp Electrical Ltd | 2022 | 31 Oct 2027 (in 383 days) |
| Installation Maintenance Services Electrical Limited | 2010 | 31 Dec 2026 (in 79 days) |
| J D Clay Limited | 2006 | 31 Dec 2027 (in 444 days) |
| J Switch Services Limited | 2025 | 31 Dec 2026 (in 79 days) |
| J. Wilkins Limited | 1997 | 31 Oct 2026 (in 18 days) |
| James Andrew Electrical Limited | 2019 | 31 Mar 2027 (in 169 days) |
| JC Griffin Electrical Limited | 1997 | 31 Dec 2027 (in 444 days) |
| JGR Building Services Limited | 2001 | 30 Sep 2027 (in 352 days) |
| Jlee Electrical Ltd | 2016 | 30 Apr 2027 (in 199 days) |
| JMD Electrical Services Ltd | 2022 | 31 Jan 2028 (in 475 days) |
| KF Electrical (Lincoln) Ltd | 2015 | 31 Mar 2027 (in 169 days) |
| KGJ Electrical Ltd | 2026 | 30 Apr 2028 (in 565 days) |
| KLS Security & Electrical Ltd | 2021 | 30 Nov 2026 (in 48 days) |
| Lamming Electrical Ltd | 2024 | 31 Dec 2026 (in 79 days) |
| Lincoln Electrical Ltd | 2020 | 31 Dec 2026 (in 79 days) |
| Lincolnshire Electrical Fire & Security Ltd | 2025 | 29 Sep 2027 (in 351 days) |
| Lincolnshire Electrical Maintenance Ltd | 2024 | 31 Oct 2027 (in 383 days) |
| Lincsol Electrical Services Limited | 2025 | 31 Oct 2027 (in 383 days) |
| Lovett Electrical Installations Limited | 2013 | 31 Mar 2027 (in 169 days) |
| M B Electrical Services (Lincoln) Limited | 2002 | 30 Sep 2027 (in 352 days) |
| M. Gladwin Electrical Contractors Limited | 2002 | 31 Dec 2026 (in 79 days) |
| M.S.H Electrical Services Ltd | 2022 | 31 May 2027 (in 230 days) |
| Magna Carta Electrical Services Limited | 2005 | 31 Jan 2027 (in 110 days) |
| Mark Clayson Electrical Contractors Ltd | 2002 | 30 Nov 2027 (in 413 days) |
| Mayo Electrical Services Limited | 2019 | 28 Feb 2027 (in 138 days) |
| Melia Inc Ltd | 2013 | |
| Meller Electrical Limited | 2017 | 31 Dec 2026 (in 79 days) |
| MK Electrical (Lincoln) Limited | 2020 | 31 Dec 2026 (in 79 days) |
| NB Electrical (Lincs) Limited | 2024 | 27 Nov 2026 (in 45 days) |
| Nigel Moore Electrical Contractors Ltd | 2002 | 30 Jun 2027 (in 260 days) |
| Norris Energy Solutions Limited | 2026 | 4 May 2028 (in 569 days) |
| Northwick Limited | 2013 | 30 Jun 2027 (in 260 days) |
| P J McGann Electrical Ltd | 2025 | 21 May 2027 (in 220 days) |
| P Young Electrical Services Limited | 2011 | 31 May 2027 (in 230 days) |
| PCH Electrical Ltd | 2020 | 31 Jan 2028 (in 475 days) |
| PJ Lancaster Electrical Services Ltd | 2013 | 31 Jan 2027 (in 110 days) |
| PJS Electrical Services Limited | 2014 | 30 Apr 2027 (in 199 days) |
| Point Electrical Services Limited | 2010 | 31 Aug 2027 (in 322 days) |
| Quantum Electrical Services (Sleaford) Limited | 2026 | 14 May 2028 (in 579 days) |
| R D B Engineering Limited | 2001 | 6 Jan 2027 (in 85 days) |
| R J Chambers Limited | 2006 | 31 Jan 2028 (in 475 days) |
| Richmond Electrical Solutions Limited | 2025 | 26 Mar 2027 (in 164 days) |
| Robinson Clark Electrical Contractors Ltd | 2023 | 30 Apr 2027 (in 199 days) |
| Rowding Ltd | 2025 | 21 Aug 2027 (in 312 days) |
| S.B.Barker (Electrical and T.V) Limited | 1972 | 31 Dec 2026 (in 79 days) |