| Terian Limited | Real estate | 2025 |
| Testwood Homes Ltd | Real estate | 2026 |
| Thackeray Management Company Limited | Households | 1999 |
| Thame Meadows Management Company Limited | Administrative & support | 2016 |
| Thamesview (Plots 242-281) Residents Association Limited | Households | 2000 |
| Thamesview Management (Plots 67-74) Limited | Households | 1999 |
| Thamesview Management (PLOTS109-116) Limited | Households | 1999 |
| Thatcher Properties Limited | Mining & quarrying | 2004 |
| THE Acorn Grove Management Company Limited | Households | 1987 |
| THE Acorns (Abbeymead) Management Company Limited | Households | 2007 |
| THE Acorns (Shirley) Management Company Limited | Households | 2014 |
| THE Acorns and Hunters Wood Management Company Limited | Households | 2020 |
| THE Acorns Management Company Limited | Administrative & support | 2002 |
| THE Aspect Residents Company Limited | Households | 2001 |
| THE Avenue (Stoke Mandeville) Management Company Limited | Households | 2008 |
| THE Avenue (Whitley) Management Company Limited | Households | 2006 |
| THE Avenue (Wingerworth) Management Limited | Households | 2019 |
| THE Bayfields Management Company Limited | Households | 2002 |
| THE Beeches (Norfolk Park) Management Company Limited | Households | 2005 |
| THE Big Picture Project Management Ltd | Other services | 2019 |
| THE Boulevards (Newport) Residents Management Company Limited | Households | 2014 |
| THE Brambles (Back Lane) Management Company Limited | Households | 2018 |
| THE Brambles (DOE LEA) Management Company Limited | Households | 2007 |
| THE Brambles (Long Lawford) Management Company Limited | Households | 2017 |
| THE Brambles Management Company Limited | Households | 2010 |
| THE Bramleys (Halesowen) Management Company Limited | Households | 2003 |
| THE Bridleways (Eccleshill) Management Company Limited | Households | 2020 |
| THE Brook (Northiam) Management Limited | Households | 2023 |
| THE Buntings (Exminster) Management Company Limited | Households | 2003 |
| THE Burwood House (Management) Company Limited | Extraterritorial | 2005 |
| THE Cairns (Cardiff) Management Company Limited | Households | 2001 |
| THE Cardinal Mews Management Company Limited | Households | 1999 |
| THE Carole Court Management Co Ltd | Households | 1990 |
| THE Cascades (Virginia Water) Management Company Limited | Households | 2008 |
| THE Cedars Residents Management Company (Chudleigh) Limited | Households | 1998 |
| THE Chambers (Ipsley) Management Company Limited | Households | 2005 |
| THE Chase (Wincanton) Management Company Limited | Households | 2013 |
| THE Chestnuts (Milton Malsor) Management Company Limited | Households | 2007 |
| THE Chill (Bath) Management Company Limited | Households | 2017 |
| THE Chimes (Loughborough) Management Company Limited | Households | 2016 |
| THE Claridge (Paignton) Management Company Limited | Households | 1995 |
| THE Cleaning Crew Ltd | Administrative & support | 2012 |
| THE Cloisters (Roby Mill) Management Company Limited | Households | 2015 |
| THE Clovers (Willowbrook) Management Company Limited | Real estate | 2014 |
| THE Coppice Management Company (Short ST) Limited | Households | 2015 |
| THE Coppice Management Company Limited | Households | 2005 |
| THE Copse (Redditch) Management Company Limited | Households | 2018 |
| THE Cotton Exchange Management Company Limited | Households | 2016 |
| THE Cygnets (Feering Hill) Management Company Limited | Households | 2003 |
| THE Digital Change Mechanic Ltd | Information & communication | 2023 |
| THE Edge Management (2008) Limited | Households | 2007 |
| THE Exchange (Leyton) Management Company Limited | Households | 2015 |
| THE Fairways (Bedford H3) Management Company Limited | Households | 2013 |
| THE Fairways (Pinchington Lane) Management Company Limited | Households | 1999 |
| THE Farthings Management Company (Lymm) Limited | Real estate | 2003 |
| THE Fawcett Centre - Private Academic Tutoring Ltd | Education | 2022 |
| THE Financial Navigator Ltd | Administrative & support | 1999 |
| THE Firs (Syston) Management Company Limited | Households | 1998 |
| THE Ford Group of Companies Limited | Financial services | 2026 |
| THE Former Laundry Management Company Limited | Households | 2010 |
| THE Fulford Place Management Company Limited | Households | 2003 |
| THE Gallery at Westcroft Management Company Limited | Households | 2012 |
| THE Gatehouse Residential Care Home Limited | Health & social care | 2025 |
| THE Grange (Cheshunt) Management Limited | Households | 1993 |
| THE Grange (Wellesbourne) Management Company Limited | Households | 2018 |
| THE Grange at Newton Management Company Limited | Households | 2021 |
| THE Griffin Management Company (Southbourne) Limited | Real estate | 1999 |
| THE Grove (Rockbeare) Management Limited | Households | 2019 |
| THE Grove (Yate) Management Company Limited | Households | 2022 |
| THE Gryphon Trust | Education | 2011 |
| THE Hamptons (Clayton-Le-Woods) Management Company Limited | Real estate | 2016 |
| THE Hemp Pantry Ltd | Manufacturing | 2017 |
| THE Horti House Limited | Wholesale & retail | 2025 |
| THE Housing Connection Consultancy Ltd | Professional & scientific | 2005 |
| THE HOY (Highcliffe) Management Company Limited | Households | 2021 |
| THE Hub (Oldbury Ringway) Management Company Limited | Households | 2006 |
| THE Hub (Verney Street) Management Company Limited | Households | 2010 |
| THE Keel (Highcliffe) Management Company Limited | Households | 2022 |
| THE Kites Nest Stroud Management Company Limited | Households | 2020 |
| THE Kraken Seafood Company Limited | Hospitality | 2018 |
| THE Lakeview Residents Association (Rustington) Limited | Households | 2006 |
| THE Lanterns (Irthlingborough) Management Company Limited | Households | 2010 |
| THE Laurels (Bolton Court) Estates Management Company Limited | Households | 2018 |
| THE Lettings GEM Limited | Real estate | 2015 |
| THE Limes at Sapcote Management Company Limited | Households | 2014 |
| THE Local Food Festival Ltd | Arts & recreation | 2020 |
| THE London Framing Company Limited | Wholesale & retail | 1998 |
| THE Long Shoot Management Company Limited | Households | 2014 |
| THE Mallards (Peterborough) Management Company Limited | Households | 2016 |
| THE Mallards Brundall Management Company Limited | Households | 2015 |
| THE Maltings (Ilminster) Management Limited | Households | 2008 |
| THE Maltings Management Company (Llantarnam) Limited | Real estate | 2016 |
| THE Maples (Gloucester) Management Company Limited | Households | 2006 |
| THE Maples (Ringmer) Management Limited | Households | 1998 |
| THE Marrick Close Freehold Company Limited | Households | 2001 |
| THE Maythorns (Biggleswade) Management Company Limited | Households | 2010 |
| THE Meadows (Uckfield) Limited | Real estate | 2008 |
| THE Meadows (Ullesthorpe) Management Company Limited | Households | 2019 |
| THE Middlefield Springs Management Company Limited | Households | 2016 |
| THE New Forest Tile Co. Ltd | Wholesale & retail | 2022 |