| A C Sharp Heating Ltd | 2023 | 31 Mar 2027 (in 170 days) |
| Aap Plumbing Ltd | 2011 | 31 Dec 2026 (in 80 days) |
| Abertay Plumbing, Heating & Gas Co. Ltd. | 1998 | 31 Dec 2026 (in 80 days) |
| Alexander Ritchie Plumbers Ltd. | 2019 | 31 Dec 2027 (in 445 days) |
| Alg Gas Services Ltd | 2019 | 30 Apr 2027 (in 200 days) |
| Ambleside Plumbing and Heating Ltd | 2021 | |
| Angus & Graham Plumbing, Heating and Gas Services Limited | 1999 | 31 Dec 2027 (in 445 days) |
| Aps (Dundee) Ltd | 2012 | 30 Jun 2027 (in 261 days) |
| Aquamac Contracts Limited | 2019 | 31 Dec 2026 (in 80 days) |
| Balgove Property Solutions Limited | 2015 | 28 Feb 2027 (in 139 days) |
| Bespoke Bathrooms (Dundee) Limited | 2018 | 30 Apr 2027 (in 200 days) |
| Birkhill Contracts Limited | 2024 | 3 Feb 2027 (in 114 days) |
| Blain Plumbing Heating & Joinery Services Limited | 2010 | 31 Dec 2026 (in 80 days) |
| Blue Flame Heating Solutions Limited | 2015 | 31 Oct 2026 (in 19 days) |
| Boiler Replacement Company Scotland Ltd | 2026 | 10 Apr 2028 (in 546 days) |
| Brookwood Plumbing and Heating Scotland Ltd | 2026 | 26 Oct 2027 (in 379 days) |
| C.Mackie Plumbing and Heating Ltd | 2025 | 13 Nov 2026 (in 32 days) |
| Casa by Sivle Ltd | 2016 | 31 May 2027 (in 231 days) |
| CBPH Plumbing & Heating Ltd | 2024 | 31 Oct 2027 (in 384 days) |
| CFM Renewables Ltd | 2025 | 28 Feb 2027 (in 139 days) |
| CFM Trading London Limited | 2022 | 31 Oct 2026 (in 19 days) |
| Chris Sim Plumbing & Heating Ltd | 2026 | 3 Jan 2028 (in 448 days) |
| Chris Soutar Plumbing & Heating Ltd | 2025 | 30 Nov 2027 (in 414 days) |
| CM Pipework Services Ltd | 2024 | 2 Dec 2026 (in 51 days) |
| Complete Contracts Dundee Ltd | 2020 | 31 Aug 2027 (in 323 days) |
| CP Engineering (Aberdeen) Ltd | 2024 | 31 Oct 2027 (in 384 days) |
| CP Engineering (Dundee) Ltd | 2023 | 30 Sep 2027 (in 353 days) |
| DM Plumbing Small Contracts Limited | 2025 | 11 Jan 2027 (in 91 days) |
| Domestic Plumbing & Heating (Scotland) Limited | 2004 | 31 Jul 2027 (in 292 days) |
| Domestic Plumbing & Heating Ltd | 2014 | 28 Feb 2027 (in 139 days) |
| Downfield Plumbing & Heating Ltd | 2026 | 14 Oct 2027 (in 367 days) |
| Drainbusters Scotland Limited | 2013 | 31 Aug 2027 (in 323 days) |
| East Coast Combustion Services Limited | 1980 | 28 Feb 2027 (in 139 days) |
| Express Heating & Plumbing Ltd | 2013 | 31 Dec 2026 (in 80 days) |
| First Choice Bathrooms Dundee Limited | 2020 | 30 Apr 2027 (in 200 days) |
| Foster Plumbing & Heating Limited | 2025 | 30 Apr 2027 (in 200 days) |
| Gray Gas Services Ltd | 2021 | 30 Jun 2027 (in 261 days) |
| Green Eco Energy Grant Limited | 2025 | 30 Jun 2027 (in 261 days) |
| Greystone Energy (Scotland) Ltd | 2017 | 31 Aug 2027 (in 323 days) |
| Gunn Gas Services Ltd | 2020 | 31 May 2027 (in 231 days) |
| H & H Plumbing & Heating Services Limited | 2016 | 31 May 2027 (in 231 days) |
| Heating Dynamics Limited | 2025 | 31 Jan 2028 (in 476 days) |
| Hightower Mechanical Services Ltd | 2026 | 23 Feb 2028 (in 499 days) |
| Ian Kidd & Son Ltd | 2011 | 31 Dec 2026 (in 80 days) |
| Ilg Plumbing and Heating (Scotland) Limited | 2020 | 30 Nov 2026 (in 49 days) |
| Installations by Chris M Knight Ltd | 2022 | 28 Feb 2027 (in 139 days) |
| James Stewart Oil Heating Services Ltd | 2013 | 30 Jun 2027 (in 261 days) |
| JB Sexton Interiors Limited | 2015 | 31 Dec 2026 (in 80 days) |
| Jim Butter Plumbing & Heating Ltd | 2011 | 30 Apr 2027 (in 200 days) |
| Jjem Plumbing Ltd | 2019 | 31 Dec 2026 (in 80 days) |