| Siraj Enterprises (Fakenham) Limited | Hospitality | 1991 |
| Sky Helicopters Limited | Other services | 2013 |
| SMC Psychiatry Limited | Health & social care | 2025 |
| Smiling Tiger Consulting Ltd | Wholesale & retail | 2025 |
| Sovereign Investment Partners (Rissington) Ltd | Real estate | 2017 |
| Sovereign Investment Partners Ltd | Administrative & support | 2017 |
| Sovereign Residential Investments Ltd | Real estate | 2018 |
| Spalding & Co. Limited | Real estate | 2006 |
| Sparrow Green Farm Ltd | Professional & scientific | 2025 |
| SPC Technologies Ltd | Manufacturing | 2000 |
| Spectra CGI Ltd | Information & communication | 2020 |
| Spectrom Limited | Professional & scientific | 2020 |
| SPECTROM4 Limited | Real estate | 2022 |
| Spectrum Digital Labels Limited | Manufacturing | 2020 |
| Squeek Limited | Manufacturing | 2018 |
| Stagecraft Gardens Limited | Professional & scientific | 2024 |
| Stair Group Ltd | Construction | 2024 |
| Stanley Developments (Norfolk) Ltd | Real estate | 2023 |
| Steel Serenity Limited | Real estate | 2025 |
| Steelweave Ltd | Extraterritorial | 2023 |
| Steward Safety Supplies Ltd. | Wholesale & retail | 1999 |
| Stewardsons (Fakenham) Limited | Professional & scientific | 1946 |
| Stiffkey Red Lion Ltd. | Hospitality | 1996 |
| Storeit (Fakenham) Limited | Real estate | 2010 |
| Storm Fine Arts Limited | Administrative & support | 1999 |
| Strategic Recruitment Resources Magellan Partnership Limited | Administrative & support | 2003 |
| Stuart Farrow (Builders & Contractors) Limited | Construction | 2001 |
| Student Properties Newcastle Ltd | Real estate | 2014 |
| Sun Valley Limited | Manufacturing | 1955 |
| Super Textile Ltd | Wholesale & retail | 2020 |
| Superformula Holdings Limited | Financial services | 2015 |
| Supertouchpizza Ltd | Hospitality | 2023 |
| Suton Machinery Limited | Professional & scientific | 1989 |
| Swan Court Fakenham Limited | Households | 2021 |
| Sweets 'N' Things Limited | Hospitality | 2009 |
| Synergia Investments Limited | Financial services | 2024 |
| Tagg Decorators Limited | Construction | 2010 |
| Tailored Manufacturing Limited | Manufacturing | 2020 |
| Tapping & Tooling Supplies Ltd. | Wholesale & retail | 1986 |
| Task Force 2000 Limited | Construction | 2015 |
| Tattersett Timber Ltd | Manufacturing | 2023 |
| Taylor Care Norfolk Limited | Health & social care | 2015 |
| Taylors of Fakenham Limited | Hospitality | 2024 |
| Tecs Farming Limited | Agriculture & fishing | 1988 |
| Terrington Machinery Limited | Manufacturing | 1994 |
| TG Home and Garden Services Limited | Construction | 2005 |
| Thain Wildbur (Fakenham) LLP | | 2014 |
| THE Abbey Group (Norfolk) Limited | Construction | 2021 |
| THE Abbey Group (Wood Farm) Ltd | Construction | 2024 |
| THE Barbers (Fakenham) Ltd | Other services | 2023 |
| THE Cove Fakenham Ltd | Other services | 2024 |
| THE Crown (Fakenham) Ltd | Hospitality | 2017 |
| THE Dog House Pro Limited | Other services | 2017 |
| THE Enchanted Readers Limited | Arts & recreation | 2024 |
| THE EYE MAN Fakenham Limited | Health & social care | 2020 |
| THE Fancy Pheasant Hotel Ltd | Hospitality | 2024 |
| THE Ficarra's Spa Ltd | Other services | 2022 |
| THE Fish Shop Roughton Ltd | Wholesale & retail | 2022 |
| THE Frontline Club Limited | Extraterritorial | 2020 |
| THE Galley (Fakenham) Ltd | Hospitality | 2025 |
| THE Galley Street Kitchen Ltd | Hospitality | 2024 |
| THE Gent's Joint Limited | Wholesale & retail | 2016 |
| THE Gym Fakenham Ltd | Arts & recreation | 2019 |
| THE Kiptons Hub CIC | Wholesale & retail | 2014 |
| THE Letts Group Limited | Other services | 2018 |
| THE Light Aircraft Company Ltd | Manufacturing | 1997 |
| THE Lights Inc Limited | Arts & recreation | 2015 |
| THE Little EGG Company Limited | Extraterritorial | 2019 |
| THE Motorcycle Works Cambridge Ltd | Manufacturing | 2013 |
| THE Norfolk Agents (West) Ltd | Real estate | 2023 |
| THE Norfolk Agents Ltd | Real estate | 2016 |
| THE Norfolk Food Company Limited | Real estate | 2011 |
| THE Oak Company Norfolk Limited | Manufacturing | 2025 |
| THE Old Post Office House (Management) Limited | Households | 2010 |
| THE Only Indian in Wells Limited | Hospitality | 2025 |
| THE Parachute Project Ltd | Health & social care | 2021 |
| THE Pensthorpe Conservation Trust Limited | Arts & recreation | 2003 |
| THE PIG Shed Motel Limited | Real estate | 2017 |
| THE Shuffle Brand Ltd | Wholesale & retail | 2024 |
| THE Thursford Collection | Arts & recreation | 1976 |
| THE Weavers Residence Ltd | Extraterritorial | 2021 |
| THE Wensum Partnership Limited | Construction | 2018 |
| Thistle Bespoke Services Limited | Other services | 2025 |
| Thornham Cottages Ltd | Real estate | 2010 |
| Thursford Enterprises Limited | Wholesale & retail | 1977 |
| Tinogi Limited | Administrative & support | 2017 |
| Tooth Construction Limited | Construction | 2014 |
| Total Solutions 4U Ltd | Energy | 2016 |
| Toucan Farm Machinery Limited | Wholesale & retail | 2001 |
| Traditional English Building Company Limited | Construction | 2007 |
| Trebilco and Davies Limited | Manufacturing | 2023 |
| TS & MD Savory Limited | Agriculture & fishing | 1997 |
| Tudor Cleaning & Property Maintenance Norfolk Limited | Administrative & support | 2025 |
| Tudor Cleaning Holiday Homes Services Norfolk Limited | Administrative & support | 2026 |
| Turner Agricultural Services Ltd | Agriculture & fishing | 2014 |
| UK Van SOL Holdings Ltd | Wholesale & retail | 2023 |
| Urban Asset Management UK Limited | Real estate | 2012 |
| Valued Waste Management Ltd | Water & waste | 2021 |
| Vamhaus Ltd | Wholesale & retail | 2018 |
| Varda (UK) Ltd | Administrative & support | 2006 |