| Solas Desserts Ltd CRO 737333 · Castlerea | Castlerea | 23 Mar 2023 |
| Naughton's Farm Machinery Ltd CRO 614452 | — | 2 Nov 2017 |
| Keen Print Ltd CRO 595635 | — | 22 Dec 2016 |
| Zenoz Ltd CRO 587712 · Boyle | Boyle | 16 Aug 2016 |
| Black Donkey Brewing Ltd CRO 529772 · Castlerea | Castlerea | 3 Jul 2013 |
| Cregg Stone Manufacturing Ltd CRO 449000 | — | 13 Nov 2007 |
| Feelystone Boyle Ltd CRO 361082 · Boyle | Boyle | 6 Sep 2002 |
| Aurivo Dairy Ingredients Ltd CRO 356156 | — | 15 May 2002 |
| Kilroe Mosaics Ltd CRO 342987 | — | 10 May 2001 |
| Gilligans Farm Fresh Meats Ltd CRO 332990 | — | 25 Sep 2000 |
| McLaughlin Concrete Ltd CRO 322900 · Tulsk | Tulsk | 13 Mar 2000 |
| Tullys Pharmacy (Castlerea) Ltd CRO 246608 · Castlerea | Castlerea | 25 Mar 1996 |
| Arran Chemical Company Ltd CRO 94943 | — | 31 May 1983 |
| S. Doyle & Sons Roscommon Ltd CRO 91741 | — | 27 Oct 1982 |
| F.D.K. Engineering Services Ltd CRO 58739 · Ballaghaderreen | Ballaghaderreen | 10 May 1977 |
| Free More Peat Ltd CRO 825784 | — | 14 Sep 2026 |
| Melvin Agri Ltd CRO 823736 · Castlerea | Castlerea | 20 Aug 2026 |
| Acm Insulated Structures Ltd CRO 823571 · Athlone | Athlone | 18 Aug 2026 |
| Asj Mechanical Services Ltd CRO 822193 · Castlerea | Castlerea | 24 Jul 2026 |
| St Ruths Dairy Ltd CRO 821153 · Athlone | Athlone | 16 Jul 2026 |
| Beirne Industrial Solutions Ltd CRO 819073 · Castlerea | Castlerea | 19 Jun 2026 |
| Bawn View Dairies Ltd CRO 814492 · Tulsk | Tulsk | 28 Apr 2026 |
| Champ Composites Ltd CRO 810724 · Athlone | Athlone | 12 Mar 2026 |
| Augusto Leandro Stone Ltd CRO 804699 | — | 29 Dec 2025 |
| Dickens Steel Solutions Ltd CRO 804465 · Castlerea | Castlerea | 22 Dec 2025 |
| Derek Beirne Agri Ltd CRO 801776 · Elphin | Elphin | 14 Nov 2025 |
| Carlos Engineering Ltd CRO 797665 · Castlerea | Castlerea | 17 Sep 2025 |
| CDL Racing Ltd CRO 797576 · Strokestown | Strokestown | 16 Sep 2025 |
| CK Concrete Cutting & Core Drilling Specialists Ltd CRO 795017 | — | 14 Aug 2025 |
| SMLM Ltd CRO 791433 · Athlone | Athlone | 25 Jun 2025 |
| The Sweet Wreath Bakery Ltd CRO 789721 · Knockcroghery | Knockcroghery | 28 May 2025 |
| Moyvannion Farm Ltd CRO 788061 · Athlone | Athlone | 7 May 2025 |
| RH Treats Ltd CRO 786141 · Mount Talbot | Mount Talbot | 11 Apr 2025 |
| Forgefield Farms Ltd CRO 785625 · Athlone | Athlone | 7 Apr 2025 |
| Emlaghmore Dairy Ltd CRO 778817 | — | 6 Jan 2025 |
| Escapeguard Innovations Ltd CRO 775292 · Strokestown | Strokestown | 6 Nov 2024 |
| Ads Doors Ltd CRO 774791 | — | 30 Oct 2024 |
| Martin Aircraft Maintenance Ltd CRO 774645 | — | 29 Oct 2024 |
| J-Max Manufacturing & Trading Ltd CRO 773318 · Ballinlough | Ballinlough | 7 Oct 2024 |
| Kodair Wind Products Ltd CRO 770276 · Athlone | Athlone | 23 Aug 2024 |
| TT Media Global Ltd CRO 769891 · Knockcroghery | Knockcroghery | 16 Aug 2024 |
| RCS Garage Ltd CRO 757184 · Lanesborough Road | Lanesborough Road | 7 Feb 2024 |
| Spring Gardens Dairy Farm Ltd CRO 741767 · Ballinlough | Ballinlough | 22 May 2023 |
| DCH Bio Carbons Ltd CRO 739960 · Strokestown | Strokestown | 2 May 2023 |
| Austin Diffley Plant Maintenance Ltd CRO 733795 · Cloverhill | Cloverhill | 26 Jan 2023 |
| Top Factory Cabins Ltd CRO 733686 · Rooskey | Rooskey | 25 Jan 2023 |
| Biotech Lifesciences Ltd CRO 733512 | — | 23 Jan 2023 |
| CDG Profiles Ltd CRO 724379 · Racecourse Road | Racecourse Road | 17 Aug 2022 |
| Halcyon Eco Ltd CRO 721084 | — | 16 Jun 2022 |
| Nal Products Ltd CRO 720346 | — | 1 Jun 2022 |
