| Synergy Continental Ltd CRO 768940 | — | 31 Jul 2024 |
| Purest Water Ltd CRO 729588 · Blarney | Blarney | 14 Nov 2022 |
| Tim O Sullivan Well Drilling Ltd CRO 711204 · Blarney | Blarney | 7 Jan 2022 |
| Cobh Skip Hire Ltd CRO 707452 · Cobh | Cobh | 8 Nov 2021 |
| Forge Hill Recycling UC CRO 551113 | — | 15 Oct 2014 |
| Loftus Demolition and Recycling Ltd CRO 508983 | — | 30 Jan 2012 |
| Munster Polymers Ltd CRO 488347 | — | 30 Aug 2010 |
| Ward & Burke Water Ltd CRO 292095 · Charleville | Charleville | 13 Aug 1998 |
| Aqualogic Ltd CRO 282756 · Carrigaline | Carrigaline | 27 Mar 1998 |
| Aquasyntaris Ltd CRO 819926 | — | 30 Jun 2026 |
| Purecycle Engineering Solutions Ltd CRO 818726 · Kinsale | Kinsale | 16 Jun 2026 |
| Hannon Recycling & Property Management Ltd CRO 810940 · Glanmire | Glanmire | 18 Mar 2026 |
| WTP Carin Ltd CRO 810108 | — | 4 Mar 2026 |
| Power Motion Facility Solutions Ltd CRO 808586 · Mallow | Mallow | 13 Feb 2026 |
| Barry Sheehy Water Treatment Ltd CRO 799958 · Castlelyons | Castlelyons | 24 Oct 2025 |
| Ballineen Skip Hire Ltd CRO 795955 · Ballineen | Ballineen | 26 Aug 2025 |
| Kraftpal Ireland Ltd CRO 792423 · Waterfront Square | Waterfront Square | 8 Jul 2025 |
| Glenanore Cartons Ltd CRO 781649 · Castletownroche | Castletownroche | 17 Feb 2025 |
| Kerruish Brewing and Biosciences Ltd CRO 774321 · Ladysbridge | Ladysbridge | 22 Oct 2024 |
| Southern Polymers Recovery Ltd CRO 768017 · Ovens | Ovens | 18 Jul 2024 |
| MCL Recycling Ltd CRO 767800 · Coachford | Coachford | 15 Jul 2024 |
| Puritee Ltd CRO 764879 · Clonakilty | Clonakilty | 28 May 2024 |
| Evergreen Environmental Specialists Ltd CRO 759613 · Boherbue | Boherbue | 11 Mar 2024 |
| Vodax Ltd CRO 752645 · New Mallow Road | New Mallow Road | 23 Nov 2023 |
| C.D.S Recycling Ltd CRO 751917 · Midleton | Midleton | 9 Nov 2023 |
| MK Green Recycling Ltd CRO 750712 · Sundays Well | Sundays Well | 18 Oct 2023 |
| Bride Valley Mini Skips & Grab Hire Ltd CRO 750248 | — | 12 Oct 2023 |
| Second Life Cycle Ltd CRO 748601 · Kilbrittan | Kilbrittan | 14 Sep 2023 |
| Custom Energy Products Ltd CRO 747193 · Carrigtwohill | Carrigtwohill | 23 Aug 2023 |
| DS Landscape Management Ltd CRO 744936 · Carrigtwohill | Carrigtwohill | 13 Jul 2023 |
| Kilmurry Eco Products Ltd CRO 742491 · Lissarda | Lissarda | 1 Jun 2023 |
| Inline Eco Ltd CRO 740932 | — | 11 May 2023 |
| Ewt Eco Waste Treatments Ltd CRO 737476 · Macroom | Macroom | 27 Mar 2023 |
| Dooneen Utilities Ltd CRO 726349 · 20 South Mall | 20 South Mall | 22 Sep 2022 |
| Monkstown Recycling Ltd CRO 724914 | — | 26 Aug 2022 |
| Waste Ventures Ltd CRO 724149 · Fermoy | Fermoy | 11 Aug 2022 |
| Peregrine Technologies (BETA) Ltd CRO 724169 · Mallow Road | Mallow Road | 11 Aug 2022 |
| Be Eco Ltd CRO 723190 | — | 26 Jul 2022 |
| Peregrine Technologies (Alpha) Ltd CRO 723171 · Mallow Road | Mallow Road | 25 Jul 2022 |
| A&l Expert Services Ltd CRO 721733 · Charleville | Charleville | 27 Jun 2022 |
| Environmental Services Ireland Commissioning Ltd CRO 720505 · Glenville | Glenville | 3 Jun 2022 |
| Thriv3 Group Initiative Ltd CRO 714995 · Fermoy | Fermoy | 8 Mar 2022 |
| Liquid Engineering Ltd CRO 713680 · Clonakilty | Clonakilty | 17 Feb 2022 |
| Giotopher Ltd CRO 708836 | — | 26 Nov 2021 |
| Matrix RV Ltd CRO 708026 · New Mallow Road | New Mallow Road | 15 Nov 2021 |
| Mygug Ltd CRO 691483 · Clonakilty | Clonakilty | 30 Mar 2021 |
| Doody Waste Management Ltd CRO 688793 · Cobh | Cobh | 24 Feb 2021 |
| Ed Barry Ltd CRO 684680 · Knockraha | Knockraha | 9 Dec 2020 |
| Cork Environment Disposal Ltd CRO 674686 · Tramore Road | Tramore Road | 28 Jul 2020 |
| Combined Technical Resource Ltd CRO 672399 | — | 17 Jun 2020 |
