| THE Bronze Bar Ltd | Other services | 2025 |
| THE Car Surgery (Littlehampton) Limited | Wholesale & retail | 2014 |
| THE Centre for Family and Education Ltd | Professional & scientific | 2025 |
| THE Centre for Pagan Studies Ltd | Arts & recreation | 2013 |
| THE Claims Bureau Limited | Administrative & support | 2012 |
| THE Clock House Midhurst Management Limited | Households | 2004 |
| THE Coffee Compass Limited | Manufacturing | 1996 |
| THE Contract Doctor Limited | Professional & scientific | 2017 |
| THE Copycourse Ltd | Arts & recreation | 2005 |
| THE Crafterpreneur Limited | Information & communication | 2015 |
| THE Darling Emporium Ltd | Other services | 2024 |
| THE Dental Business Manager Ltd | Professional & scientific | 2022 |
| THE Designer Drinks Company Ltd | Professional & scientific | 2021 |
| THE Dog Shop Ltd | Wholesale & retail | 2022 |
| THE Dowal Walker Agency Limited | Professional & scientific | 2011 |
| THE Edible Sandwich Co Limited | Hospitality | 2004 |
| THE EY Sculptural Heights Limited | Arts & recreation | 2019 |
| THE Fairtrades Shop Ltd | Wholesale & retail | 2023 |
| THE Finance Department Limited | Professional & scientific | 2002 |
| THE Forty Eight Norfolk Road Management Limited | Households | 1998 |
| THE Froth Podcast Ltd | Information & communication | 2020 |
| THE Glow Method at Home Ltd | Health & social care | 2019 |
| THE Good Faith Partnership LLP | | 2016 |
| THE Goods Dinosaur Ltd | Wholesale & retail | 2025 |
| THE Great Dane Ltd | Hospitality | 2024 |
| THE Hanburies (Eastbourne) Limited | Real estate | 2009 |
| THE Happy Glamper Ltd | Other services | 2020 |
| THE Healing Hare Limited | Other services | 2012 |
| THE Heat IS on Engineering Ltd | Construction | 2021 |
| THE HR Point Limited | Administrative & support | 2012 |
| THE Limes (Rustington) Management Company Limited | Households | 2007 |
| THE Listening Tree Ltd | Administrative & support | 2017 |
| THE Little Pet Biscuit Company Limited | Manufacturing | 2012 |
| THE MAN in the Garage Ltd | Construction | 2023 |
| THE Martello Enterprise Centre Management Company Limited | Real estate | 2001 |
| THE Music Producers Guild (UK) Limited | Other services | 1999 |
| THE Nails Lounge JC Ltd | Other services | 2019 |
| THE Nichols-Perry Partnership Limited | Real estate | 2017 |
| THE Old Church House Limited | Households | 1988 |
| THE Old Dairy Farm Management Co. Limited | Households | 2019 |
| THE Old Slipway Residents Company Limited | Households | 1990 |
| THE Paddy Ashdown Forum Ltd | Professional & scientific | 2019 |
| THE Paddy Ashdown Policy Research Forum Limited | Professional & scientific | 2019 |
| THE Pain Management Clinic Limited | Health & social care | 2023 |
| THE Panini Kitchen Limited | Hospitality | 2008 |
| THE Plumbing & Heating Engineer Ltd | Construction | 2012 |
| THE Podgy Spaniel Steak & Fish House Ltd | Hospitality | 2025 |
| THE Prince Madoc Ltd | Hospitality | 2020 |
| THE Quill Rustington Ltd | Hospitality | 2023 |
| THE Resinwarehouse Ltd | Wholesale & retail | 2019 |
| THE Revision Hub Ltd | Education | 2026 |
| THE River Thai Ltd | Hospitality | 2001 |
| THE Rocking Horse Bureau Limited | Professional & scientific | 2012 |
| THE Rosary Residents Management Company Limited | Households | 2018 |
| THE Saxon & the Scone Ltd | Wholesale & retail | 2025 |
| THE Southdean Estate Limited | Other services | 2007 |
| THE Story Spotters Ltd | Extraterritorial | 2021 |
| THE Sussex Wedding Suppliers Ltd | Other services | 2020 |
| THE Tallulah Lewis Foundation Limited | Professional & scientific | 2020 |
| THE Thatchway Angmering Limited | Professional & scientific | 2001 |
| THE Thin Technologist Ltd | Information & communication | 2012 |
| THE VI Network CIC | Other services | 2026 |
| THE Village Taverna Storrington Limited | Hospitality | 2024 |
| THE Virtual Workforce Company Limited | Information & communication | 2005 |
| THE Wick Fryer (2024) Ltd | Hospitality | 2024 |
| Theipg Ltd | Wholesale & retail | 2013 |
| Theitc Ltd | Information & communication | 2021 |
| These Small Things Ltd | Construction | 2022 |
| Thetrendspeople Ltd | Professional & scientific | 2018 |
| Thirteen Eleven Ltd | Wholesale & retail | 2025 |
| Thirteen Langton Road RTM Company Limited | Households | 2010 |
| Thiswebdesign Ltd | Professional & scientific | 2020 |
| Thlc Brighton LLP | | 2016 |
| Thomas Grist Studio Ltd | Information & communication | 2017 |
| Thommans Finance Limited | Financial services | 2018 |
| Thornton Properties Limited | Real estate | 2009 |
| Tide Electrical Solutions Ltd | Construction | 2024 |
| Tigers Way Limited | Wholesale & retail | 2024 |
| Tikscript Limited | Arts & recreation | 2022 |
| Tiltedhue Ltd | Information & communication | 2019 |
| Time for Croatia Limited | Information & communication | 2010 |
| Tina's Salon Ltd | Other services | 2004 |
| TIP Top Property Ltd | Real estate | 2023 |
| Tipsy Mares Limited | Wholesale & retail | 2025 |
| Tirondelle Limited | Other services | 2024 |
| Titan Competitions Limited | Arts & recreation | 2025 |
| TJ Creations Ltd | Manufacturing | 2026 |
| TOM Palmer Electrical Ltd | Construction | 2021 |
| Tooth Care Clinic Ltd | Health & social care | 2014 |
| Top BOY Barber Ltd | Other services | 2025 |
| Top Flight Time Machine Ltd | Information & communication | 2019 |
| Topak Care Supplies Limited | Wholesale & retail | 2015 |
| Tope House Management Limited | Households | 1981 |
| Torridon Enterprises Ltd | Professional & scientific | 2013 |
| Tortington Manor Management Company Limited | Households | 2000 |
| Tosspell Trading Limited | Extraterritorial | 2024 |
| Total Engineer Solutions Ltd | Professional & scientific | 2020 |
| Totally Buttons Limited | Wholesale & retail | 2008 |
| Totally Stoked Ltd | Professional & scientific | 2022 |
| Touchcomp Accounts Ltd | Professional & scientific | 2012 |