| CFI TECH UK LTD | 17448673 | Tadworth | 9 September 2026 | Active |
| CRYPTON LIMITED | 17448033 | Accrington | 8 September 2026 | Active |
| PROCESS GAS FLOW SOLUTIONS LTD | 16997762 | Darwen | 29 January 2026 | Active |
| CHINESE FURNACES LIMITED | 16990834 | Evesham | 27 January 2026 | Active |
| HELIOS THERMOELECTRIC LTD | 16888674 | Port Talbot | 3 December 2025 | Active |
| PERIFLAME UK LIMITED | 16787270 | Birmingham | 15 October 2025 | Active |
| LOVEJOY LEISURE LIMITED | 16785271 | Colchester | 14 October 2025 | Active |
| FOUNDRY AND THERMAL SERVICE LIMITED | 16783882 | Worcester | 14 October 2025 | Active |
| RMF ENVIRONMENTAL LIMITED | 16753833 | London | 30 September 2025 | Active |
| MULTIJET FLAME LIMITED | 16626423 | London | 4 August 2025 | Active |
| AWSOM ENGINEERING LIMITED | 16563419 | Horndean | 7 July 2025 | Active |
| SUSSEX GRILLS LIMITED | 16547525 | Heathfield | 27 June 2025 | Active |
| STEIN ATKINSON STORDY LTD | 16300058 | London | 7 March 2025 | Active |
| FAT T'S BBQ LIMITED | 16070981 | Stratford-Upon-Avon | 11 November 2024 | Active |
| ARP FULFILMENT LTD | 15962663 | Baughton | 17 September 2024 | Active |
| DRAIG INTERNATIONAL POWER SYSTEMS LIMITED | 15821953 | Coventry | 5 July 2024 | Active |
| ASIAN WOK COOKERS LTD | 15702380 | Great Harwood | 3 May 2024 | Active |
| VAMPAROSSA LTD | 15420056 | Chipping Norton | 17 January 2024 | Active |
| CRYONORM PROCESS COMBUSTION LIMITED | 14940266 | Harrogate | 16 June 2023 | Active |
| COOPERHEAT EQUIPMENT LTD | 14837789 | Southport | 1 May 2023 | Active |
| JOBS UK STANLEY LTD | 14796715 | Birmingham | 12 April 2023 | Not in the latest register snapshot (dissolved or removed) |
| ALERT RENEWABLES LTD | 14753107 | Paignton | 23 March 2023 | Active |
| SYMPHONY FIRES LIMITED | 14373194 | Mexborough | 23 September 2022 | Active |
| TAX AFFINITY MANAGEMENT LTD | 13925618 | Epsom | 18 February 2022 | Active |
| SALVA UK & IRELAND LIMITED | 13661864 | Leicester | 5 October 2021 | Active |
| REFRACTORY SERVICES LIMITED | 13633407 | Sheffield | 21 September 2021 | Active |
| INCINCO HOLDINGS LIMITED | 13537522 | Old Hatfield | 29 July 2021 | Active |
| LBODE LTD | 13286291 | Oldham | 23 March 2021 | Active |
| THE STONE BAKE OVEN COMPANY LTD | 12991642 | Earls Croome | 2 November 2020 | Active |
| RETIGO UK LTD | 12977099 | Wrexham | 27 October 2020 | Active |
| FABULOUS FIREPITS LIMITED | 12743451 | Maresfield | 15 July 2020 | Active |
| HIGH TEMPERATURE SOLUTIONS LTD | 12490546 | Kingswinford | 28 February 2020 | Active |
| FUUEL DESIGN LTD | 12461950 | Bromley | 13 February 2020 | Active - Proposal to Strike off |
| JUST N CASE LTD | NI666270 | Craigavon | 2 December 2019 | Active |
| VORTEXI (UK) LTD | NI664690 | Craigavon | 27 September 2019 | Active |
| PCP OVEN SERVICES LTD | 12204482 | Hassocks | 12 September 2019 | Active |
| STEELGAU LTD | SC641325 | Glasgow | 11 September 2019 | Active |
| M&S COMBUSTION LTD | 11957536 | Oldham | 23 April 2019 | Active |
| NORTHERN COMBUSTION HOLDINGS LIMITED | 11830316 | Dewsbury | 15 February 2019 | Active |
| GRYDE LTD | 11777084 | Cirencester | 21 January 2019 | Active |
| TETREON TECHNOLOGIES LIMITED | 11644771 | Pulborough | 26 October 2018 | Active |
| COLLINS GREEN FORGE LTD | 11594115 | St. Helens | 28 September 2018 | Active |
| HARRIS MULTI JET BURNER LTD | 11591291 | Doncaster | 27 September 2018 | Active |
| BREMITH LTD | 11528383 | Tolworth | 21 August 2018 | Active |
| LITTLE BRITALY LTD | 11440199 | Darlington | 29 June 2018 | Active |
| MAGMA COMBUSTION ENGINEERING LIMITED | 10990666 | Dewsbury | 2 October 2017 | Active |
| HASCO-TECH LIMITED | 10730889 | West Midlands | 19 April 2017 | Active |
| PIZZA OVEN SUPPLIES LIMITED | 10593693 | Stoke-On-Trent | 31 January 2017 | Active - Proposal to Strike off |
| FLAME FIRE TABLES LIMITED | 10574632 | Nottingham | 20 January 2017 | Active |
| CHINOOK SUPER GREEN FUELS HOLDINGS LIMITED | 10539903 | Nottingham | 28 December 2016 | Active |