| 1096 Bella Ltd. | Roslin | 2026 |
| 1099 Edin Ltd. | Edinburgh | 2005 |
| 10:000 Hours Investments Ltd | London | 2019 |
| 10:45 Media Ltd | Scarborough | 2019 |
| 10A Consulting Limited | Emsworth | 2026 |
| 10A Ltd | Stonehouse | 2015 |
| 10ABILITY Ltd | Ilkley | 2011 |
| 10ACIOUS Ltd | London | 2016 |
| 10ARCHITECT Healthcare Ltd | Manchester | 2019 |
| 10ARCHITECT Holdings Ltd | Manchester | 2019 |
| 10ARCHITECT Limited | Manchester | 2016 |
| 10B Ltd | Tenby | 2024 |
| 10BRISTOL Limited | Darlington | 2009 |
| 10C Consulting Ltd | Rowhook | 2026 |
| 10ENT. Limited | Bedlington | 2023 |
| 10EXUK Ltd | Walsall | 2025 |
| 10G Consulting Limited | Southend-On-Sea | 2023 |
| 10G Mobicom Limited | Feltham | 2009 |
| 10GBTL Limited | London | 2018 |
| 10GM Ltd | Bolton | 2020 |
| 10H Ltd | Gerrards Cross | 2025 |
| 10HOSPITALITY Ltd | London | 2015 |
| 10JUMPS Limited | Winchester | 2025 |
| 10K3D Limited | London | 2010 |
| 10M Limited | London | 2018 |
| 10NAD Ltd | London | 2024 |
| 10PM Studio Ltd | London | 2015 |
| 10POINT6 Limited | London | 2018 |
| 10QBIT Limited | London | 2018 |
| 10SIXTYSIX Learning Consultancy Ltd | Petworth | 2021 |
| 10SJP Limited | London | 2005 |
| 10SJP NO.2 Limited | London | 2008 |
| 10TEN Talent Limited | Newcastle Upon Tyne | 2014 |
| 10TEN10 Ltd | Glasgow | 2019 |
| 10TH Dimension Consulting Ltd | Kingston Upon Thames | 2023 |
| 10TH Floor Development Limited | Norwich | 2024 |
| 10TH House Talent Management Limited | Manchester | 2024 |
| 10TH Mind Ltd | London | 2023 |
| 10TH Planet Agency Ltd | London | 2018 |
| 10TH Planet Design Limited | Sheffield | 2003 |
| 10W Consultancy Limited | Canterbury | 2016 |
| 10X Business Automation Ltd | London | 2024 |
| 10X Business Limited | London | 2026 |
| 10X Coach Ltd | Wokingham | 2023 |
| 10X Finance Limited | Liverpool | 2018 |
| 10X Holdings Ltd | London | 2017 |
| 10X Marketing Consultancy Ltd | Rotherham | 2020 |
| 10X Media Limited | Coventry | 2023 |
| 10X10 Booths UK Limited | London | 2026 |
| 10YARDS Limited | Maghera | 2024 |
| 10ZYME Limited | Leigh On Sea | 2023 |
| 11 A/B Cliff Street Ltd | Penarth | 2012 |
| 11 Albury Street Ltd | London | 2013 |
| 11 Amity Place Management Company Limited | Exmouth | 2007 |
| 11 and 13 Greenford Avenue Limited | London | 1999 |
| 11 Belsize Park Limited | London | 1998 |
| 11 Booking Limited | Liverpool | 2016 |
| 11 Consultancy Limited | Carshalton | 2026 |
| 11 Dimension Ltd | London | 2026 |
| 11 Elements Ltd | Bristol | 2015 |
| 11 Eleven Media Ltd | Uckfield | 2014 |
| 11 Entertainment Ltd | London | 2023 |
| 11 Finance Limited | Manchester | 2026 |
| 11 Florfield Passage Limited | London | 2006 |
| 11 Infrastructure Ltd | Wembley | 2019 |
| 11 Investments Limited | Cheltenham | 2016 |
| 11 Juris Square Chambers Ltd | East Tilbury | 2024 |
| 11 KBW Limited | London | 2006 |
| 11 Kennett Road Oxford Management Company Limited | Oxford | 2007 |
| 11 Management Limited | Altrincham | 2024 |
| 11 MBF Ltd | Northampton | 2023 |
| 11 Minds (Energy) Limited | London | 2025 |
| 11 Montpelier Terrace (Longwood) Limited | Ilfracombe | 2004 |
| 11 Paston Place Ltd | Brighton | 2016 |
| 11 Projects Consulting Ltd | London | 2025 |
| 11 Rochester Terrace Management Company Limited | Edgware | 1989 |
| 11 ROE Lane (Southport) Limited | Southport | 1996 |
| 11 Squared Limited | Colchester | 2022 |
| 11 Squares Ltd | Durham | 2018 |
| 11 Twenty Limited | Bournemouth | 2020 |
| 11 Twenty Two Limited | Tenterden | 2015 |
| 11 Vizart Ltd | Poole | 2023 |
| 11 Wood Vale Limited | Upminster | 2001 |
| 11-17 Dickens Close RTM Company Ltd | Liverpool | 2016 |
| 11.11 C & T Ltd | London | 2022 |
| 11.11 Weddings and Events Ltd | London | 2025 |
| 11.2 Financial Planning Ltd | Bristol | 2019 |
| 110 Accountants Ltd. | Bradford | 2012 |
| 110 Consultancy Ltd | Ellesmere Port | 2025 |
| 110 Consultancy Services Limited | Peterborough | 2021 |
| 110 Longfellow Ltd | York | 2015 |
| 110 Malborough Finance Limited | Redhill | 2025 |
| 110 Perceb Limited | London | 2013 |
| 110% Media Limited | Redditch | 2020 |
| 11004780 Ltd. | London | 2017 |
| 1104 Consulting Ltd | Stourbridge | 2014 |
| 1105 Taxis Ltd. | Edinburgh | 2012 |
| 11052310 Realisations Ltd | London | 2017 |
| 110DIGITAL Ltd | Woking | 2025 |
| 111 Alderney Street (1981) Limited | Abingdon | 1981 |