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| J C Bullock and Son Limited | 2002 | 30 Sep 2027 (in 353 days) |
| J-Mec Engineering Ltd | 2020 | 31 Oct 2026 (in 19 days) |
| Jan Electrical Services Ltd | 2020 | 30 Jun 2027 (in 261 days) |
| Jec Northern Limited | 2014 | 30 Apr 2027 (in 200 days) |
| Joshmat Electrical Services Ltd | 2017 | 28 Oct 2026 (in 16 days) |
| Kevin Angus and Sons Limited | 2017 | 30 Sep 2027 (in 353 days) |
| Lexson Consultancy Ltd | 2014 | 31 May 2027 (in 231 days) |
| Lionheart Renewables & Testing Limited | 2026 | 20 Nov 2027 (in 404 days) |
| Lionheart Solar & Roofing Limited | 2024 | 31 Jul 2027 (in 292 days) |
| LLB Electrical Services Ltd | 2026 | 21 Oct 2027 (in 374 days) |
| LMC Electrical and Stairlift Services Ltd | 2009 | 30 Nov 2026 (in 49 days) |
| Luma Solar Solutions Ltd | 2026 | 27 Oct 2027 (in 380 days) |
| LZJ Electrics Ltd | 2026 | 31 Dec 2027 (in 445 days) |
| M E Electrical (North East) Limited | 2017 | 31 Dec 2026 (in 80 days) |
| Mac Jointing Ltd | 2025 | 31 Oct 2027 (in 384 days) |
| MC Electrical Management Services Ltd | 2024 | 30 Apr 2027 (in 200 days) |
| MGL Electrical Contractors Limited | 2014 | 31 Aug 2027 (in 323 days) |
| MR Spark Electrical Limited | 2024 | 30 Apr 2027 (in 200 days) |
| N I White Electrical Contractor Limited | 2020 | 31 Mar 2027 (in 170 days) |
| Nationwide Chimney Components Ltd | 2002 | 28 Feb 2027 (in 139 days) |
| Nep Services Ltd | 2006 | 31 Dec 2027 (in 445 days) |
| Newcastle Electrical Center Limited | 2020 | |
| Nortec Fire Ltd | 2019 | 31 Mar 2027 (in 170 days) |
| North East Automation Limited | 2003 | 30 Sep 2027 (in 353 days) |
| NSJ (North East) Limited | 2017 | 31 Jul 2027 (in 292 days) |
| Obm Electrical Limited | 2014 | 30 Jun 2027 (in 261 days) |
| Passive-Installation Ltd | 2023 | 28 Feb 2027 (in 139 days) |
| Platinum Electrical Engineering Limited | 2009 | 31 Mar 2028 (in 536 days) |
| Pronto Plumber & Electrical Limited | 2025 | 16 Sep 2027 (in 339 days) |
| Razor's Smart Electrical Ltd | 2022 | 30 Jun 2027 (in 261 days) |
| Reuvolt Electricals Limited | 2023 | 31 Dec 2026 (in 80 days) |
| Rie Project Management Ltd | 2013 | 30 May 2027 (in 230 days) |
| Rutherford & Clark Electrical Contractors Ltd | 2022 | 30 Nov 2027 (in 414 days) |
| Ryan Reynolds Ltd | 2023 | 31 May 2027 (in 231 days) |
| S & G Electrical Contractors Ltd | 2022 | 31 Mar 2027 (in 170 days) |
| S & G Electrical Contractors Ne Ltd | 2023 | 31 Mar 2027 (in 170 days) |
| S & J Electrical Contractors (N.E.) Ltd | 2015 | 31 Oct 2026 (in 19 days) |
| S Lucas Electrical Contractors Limited | 2003 | 31 Oct 2026 (in 19 days) |
| SDB Engineering Services Ltd | 2015 | 31 Dec 2026 (in 80 days) |
| SF Electrical Installations Limited | 2024 | 31 Jul 2027 (in 292 days) |
| Smallwood Technical Services Ltd | 2012 | 31 Dec 2027 (in 445 days) |
| Tempest Electrical and Gas Limited | 2026 | 17 Nov 2027 (in 401 days) |
| TS Electrical Ne Ltd | 2024 | 30 Jun 2027 (in 261 days) |
| TT Inspections (Tti) Limited | 2025 | 18 Apr 2027 (in 188 days) |
| Tyne Tees Electrical Contracting Limited | 1999 | 28 Feb 2027 (in 139 days) |
| Upnorth Electrical Maintenance Limited | 2019 | 30 Apr 2027 (in 200 days) |
| Victus Charging Limited | 2026 | 13 Nov 2027 (in 397 days) |
| Vino Electrical Services Limited | 2020 | 31 Aug 2027 (in 323 days) |