| Alla Parish Community Group Limited | Other services | 2016 |
| Altacon Ltd | Construction | 2021 |
| Altco Limited | Administrative & support | 2018 |
| Ballyholly Contracts Ltd | Construction | 2018 |
| Bangiven Drylining Ltd | Construction | 2004 |
| Bfok Contracts Ltd | Construction | 2016 |
| Burn Gibbah View Management Company Limited | Extraterritorial | 2008 |
| Bushfield Management Company Limited | Households | 2002 |
| C & G Ceilings Limited | Construction | 2012 |
| Castlederg Green Management Co Limited | Extraterritorial | 2007 |
| Cennar Construction Ltd | Construction | 2014 |
| Chapel Road Management Co Ltd | Extraterritorial | 2005 |
| Ciaran Smyth Architects Ltd | Professional & scientific | 2022 |
| Classic Ceilings (NI) Limited | Construction | 2012 |
| Classic Group Ltd | Construction | 2018 |
| Claudy Parish Community Group | Construction | 2012 |
| Claudy Rural Development Ltd | Other services | 1997 |
| Clonee Limited | Wholesale & retail | 2006 |
| Clyco Limited | Construction | 2026 |
| CMC Autoparts Ltd | Wholesale & retail | 2022 |
| Comber View Management (NO.2) Limited | Extraterritorial | 2007 |
| Conex Electrical Services Ltd | Construction | 2024 |
| Cregg Mills Ltd | Real estate | 1998 |
| Croe Developments Limited | Construction | 2017 |
| Dao-Conn Ltd | Construction | 2006 |
| Devann Developments Ltd | Construction | 2000 |
| Diamond Supplies (N.I.) Ltd | Wholesale & retail | 2012 |
| Dmcl Consulting Ltd | Construction | 2016 |
| DMG Drylining (Ireland) Ltd | Construction | 2017 |
| Donemana Livestock Sales Ltd | Wholesale & retail | 2013 |
| Dreen Ltd | Construction | 2018 |
| Dungiven Farm Supplies Limited | Wholesale & retail | 2011 |
| DW Building Control Limited | Professional & scientific | 2024 |
| Ecd-Ni Ltd | Professional & scientific | 2023 |
| Eco-Foam Ltd | Construction | 2018 |
| Eden DRY Lining Ltd | Construction | 2003 |
| Farahs Bar Ltd | Hospitality | 2022 |
| FAT Jacks Group Ltd | Hospitality | 2025 |
| GBL Contracts Ltd | Construction | 2019 |
| GK Entertainment Ltd | Hospitality | 2017 |
| Glennmac Contracts Ltd | Construction | 2023 |
| Gortilea Gaits Ltd | Administrative & support | 2020 |
| Hasson Precast Limited | Manufacturing | 2018 |
| Health Action Training Ltd | Education | 2020 |
| Jamse Construction Ltd | Construction | 2009 |
| Jamse Group Ltd | Financial services | 2022 |
| Jamse Properties Ltd | Construction | 2009 |
| JB Interiors (Ireland) Ltd | Construction | 2015 |
| JCL Contracts Ltd | Construction | 2019 |
| JCL Plant Hire Ltd | Administrative & support | 2017 |
| JCL Retail & OFF Licence Ltd | Wholesale & retail | 2023 |
| JKR Developments Ltd | Construction | 2014 |
| Lcma Holdings Ltd | Financial services | 2024 |
| Lizzy's Beauty Room Ltd | Other services | 2026 |
| LK Glen Ltd | Hospitality | 2014 |
| MAX Electrical Services Ireland Ltd | Construction | 2016 |
| Mccloskey Farms (Cool) Ltd | Agriculture & fishing | 2020 |
| Mckeever & Partners Holding Company Limited | Financial services | 2014 |
| MCL Trading Limited | Hospitality | 2014 |
| Mctam Holdings Ltd | Financial services | 2023 |
| MGC Construction Ltd | Construction | 2017 |
| Midd Electrical Ltd | Construction | 2015 |
| Modern Spec Ltd | Construction | 2010 |
| Muldonagh Investments Limited | Real estate | 2013 |
| NMC Drylining Ltd | Construction | 2026 |
| Nursery Mews Portstewart Management Co Ltd | Extraterritorial | 2005 |
| O'Neill Bulk Services Ltd | Transport & logistics | 2013 |
| ONI Kitchens Ltd | Construction | 2011 |
| PPC Contracts Limited | Construction | 2005 |
| RD Partitions Ltd | Construction | 2015 |
| Realrecovery Ltd | Health & social care | 2024 |
| Rhusk Ltd | Wholesale & retail | 2005 |
| S.A.L.T. Community Association | Other services | 2000 |
| Samantha Properties Ltd | Real estate | 2024 |
| Saul Investments Limited | Agriculture & fishing | 2021 |
| SBK Contracts Ltd | Construction | 2025 |
| Season Harvest (NI) Limited | Wholesale & retail | 1999 |
| Sgkx Ltd | Construction | 2023 |
| SMB Bricklaying Ltd | Construction | 2020 |
| Stonemason's Cottage CIC | Professional & scientific | 2023 |
| Straid Public Works Ltd | Administrative & support | 2012 |
| Tempo Road Management Company Limited | Extraterritorial | 2007 |
| THE Rock Dairies Ltd | Agriculture & fishing | 2023 |
| TML Contracts Ltd | Construction | 2017 |
| Ttdf Limited | Agriculture & fishing | 2018 |
| Waterhen Lane Management Company Limited | Extraterritorial | 2007 |
| Whiterock Ceilings Ltd | Construction | 2021 |