| Inishowen Groundworks Ltd CRO 816914 · Clonmany | Clonmany | 28 May 2026 |
| G Kilpatrick Windows Ltd CRO 805294 · Ballindrait | Ballindrait | 7 Jan 2026 |
| Glenturas Construction (ROI) Ltd CRO 798989 · Muff | Muff | 7 Oct 2025 |
| Glenturas Construction (Millpond) Ltd CRO 798996 · Muff | Muff | 7 Oct 2025 |
| J&P Sweeney Construction Ltd CRO 798743 · Manorcunningham | Manorcunningham | 30 Sep 2025 |
| Glenturas Construction (Oakwood Park) Ltd CRO 797926 · Muff | Muff | 22 Sep 2025 |
| Glenturas Construction (Old Town) Ltd CRO 797911 · Muff | Muff | 22 Sep 2025 |
| Local Plumber Ltd CRO 791958 · Derrybeg | Derrybeg | 2 Jul 2025 |
| Rancoll Ltd CRO 789875 · Burnfoot | Burnfoot | 30 May 2025 |
| Eagle Eye Holdings Ltd CRO 785766 · Saint Johnston | Saint Johnston | 8 Apr 2025 |
| Ecotech Contracts Irl Ltd CRO 776357 | — | 22 Nov 2024 |
| On Point Contracting Ltd CRO 773906 · Ballyshannon | Ballyshannon | 16 Oct 2024 |
| PDB Construction Ltd CRO 771697 · Carndonagh | Carndonagh | 11 Sep 2024 |
| Ae Fire Services Ltd CRO 768577 · Letterkenny | Letterkenny | 26 Jul 2024 |
| Shaun MC Collum Electrical Services Ltd CRO 763086 · Rathmullan | Rathmullan | 29 Apr 2024 |
| Glenturas Construction (Bluestack) Ltd CRO 761457 · Muff | Muff | 8 Apr 2024 |
| Max Renewable Energi Ltd CRO 758992 · Lifford | Lifford | 4 Mar 2024 |
| P MC Daid Icf Structures Ltd CRO 753539 · Buncrana | Buncrana | 7 Dec 2023 |
| H & G Contracts Ltd CRO 752754 · Bridgend | Bridgend | 24 Nov 2023 |
| Ora Timber Frame Ltd CRO 747801 · Buncrana | Buncrana | 1 Sep 2023 |
| Breslin Construction & Renovation Ltd CRO 745246 · Buncrana | Buncrana | 18 Jul 2023 |
| Ozone Insulation Ltd CRO 743850 · Ballintra | Ballintra | 26 Jun 2023 |
| Tithe Beaga Teoranta CRO 743212 · Derrybeg | Derrybeg | 15 Jun 2023 |
| Tirconaill Renewables Ltd CRO 740551 | — | 9 May 2023 |
| Tailored Timber Frame Ltd CRO 727858 · Letterkenny | Letterkenny | 19 Oct 2022 |
| True North Electrical Ltd CRO 723050 · Culdaff | Culdaff | 22 Jul 2022 |
| HDPV Ltd CRO 721634 · Lifford | Lifford | 23 Jun 2022 |
| Core Roof Management Ltd CRO 720020 · Lifford | Lifford | 26 May 2022 |
| MTB Electrical Ltd CRO 719397 · Lifford | Lifford | 20 May 2022 |
| Askin Electrical Group Ltd CRO 715658 | — | 22 Mar 2022 |
| Fast Track Groundworks Ltd CRO 708486 · Letterkenny | Letterkenny | 22 Nov 2021 |
| JG Stewart Ltd CRO 698425 | — | 18 Jun 2021 |
| Floorit Ltd CRO 694857 · Burnfoot | Burnfoot | 10 May 2021 |
| KDM Carpentry & Plant Hire Ltd CRO 676926 · Letterkenny | Letterkenny | 2 Sep 2020 |
| S S Dry Lining & Plastering Ltd CRO 673503 · Convoy | Convoy | 7 Jul 2020 |
| Micatest Ltd CRO 672903 | — | 24 Jun 2020 |
| MC Formwork Ltd CRO 668766 · Gortahork | Gortahork | 19 Mar 2020 |
| Gerard Boyle Contracts Ltd CRO 664131 · Mountcharles | Mountcharles | 13 Jan 2020 |
| Gap Property Solutions Ltd CRO 661547 | — | 28 Nov 2019 |
| Paul Breslin Construction Ltd CRO 655411 · Dunkineely | Dunkineely | 19 Aug 2019 |
| JGC Contracts Ltd CRO 652773 · Falcarragh | Falcarragh | 3 Jul 2019 |
| John Quigley Construction Ltd CRO 651008 · Muff | Muff | 30 May 2019 |
| Ledex Lighting Ltd CRO 642181 · Letterkenny | Letterkenny | 28 Jan 2019 |
| DMT Renewables Ltd CRO 641899 · Ballyshannon | Ballyshannon | 23 Jan 2019 |
| Parl Contracts Ltd CRO 637940 · Downings | Downings | 16 Nov 2018 |
| R. Duffy Plant Hire Ltd CRO 637765 · Fahan | Fahan | 15 Nov 2018 |
| Glen View Homes Ltd CRO 636846 · Letterkenny | Letterkenny | 1 Nov 2018 |
| Thompson Refrigeration and Air Conditioning Ltd CRO 636262 · Moville | Moville | 22 Oct 2018 |
| Browne Scaffolding & Labour Ltd CRO 630998 | — | 26 Jul 2018 |
| Millbrook Joinery Ltd CRO 626704 · Malin | Malin | 15 May 2018 |
