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| 1005 Taxis Ltd. | Dunfermline | 2007 |
| 1009 Limited | London | 2023 |
| 100AB IVY Road Ltd | London | 2014 |
| 100KICKS Ltd | Thame | 2022 |
| 100MILLION Percent Limited | London | 2023 |
| 100VISION Communications & Campaigns Ltd | Twickenham | 2015 |
| 100WEIGHTDESIGN Ltd | Guildford | 2016 |
| 100XREVENUE Ltd | Rainham | 2026 |
| 101 (ST Helens) Ltd | Bolton | 2010 |
| 101 A+D Ltd | Bristol | 2019 |
| 101 Accounting Services Limited | London | 2007 |
| 101 Architecture Limited | Ringwood | 2021 |
| 101 Business Solutions Ltd | Falkirk | 2023 |
| 101 Capital Limited | London | 2022 |
| 101 Consultancy Ltd | Glasgow | 2025 |
| 101 Customs Ltd | Gravesend | 2025 |
| 101 Longreach Limited | Barking | 2014 |
| 101 Moorgate GP Limited | Fareham | 2021 |
| 101 Moorgate Nominee 1 Limited | Fareham | 2021 |
| 101 Moorgate Nominee 2 Limited | Fareham | 2021 |
| 101 Partners Limited | London | 2022 |
| 101 ST. Georges Drive Management Company Limited | Aylesbury | 1996 |
| 101 Staff Limited | London | 2022 |
| 101 Tech Ltd | Edgware | 2003 |
| 101 UGR Limited | Portsmouth | 2001 |
| 101 Wicked Digital Limited | Bury St. Edmunds | 2024 |
| 101/103 LEE Road (Freehold) Limited | Welling | 1982 |
| 1010 Life Limited | Fareham | 2020 |
| 1010 Services Limited | Pudsey | 2023 |
| 101120 Ltd | Aylesbury | 2021 |
| 1011DIGITAL Limited | Stockport | 2016 |
| 1012 Edin Ltd. | Edinbugrh | 2007 |
| 1017MARKETING Ltd. | Huddersfield | 2014 |
| 1018 Limited | Longniddry | 2011 |
| 102 Interiors London Ltd | London | 2013 |
| 1023 Taxis Ltd. | Hamilton | 2010 |
| 10257848 Limited | London | 2016 |
| 103 Corporate Services Limited | London | 2025 |
| 103 Finance Limited | Woodford Green | 2017 |
| 103 Station Road (Redhill) Residents Association Limited | Redhill Surrey | 1996 |
| 103 Ventures Ltd | London | 2022 |
| 103-105 Bath Road Limited | Slough | 2010 |
| 104 Blandford Street Management Limited | London | 2000 |
| 104 Gauden Road Ltd | | 2003 |
| 104 Impact Partners Ltd | London | 2025 |
| 104.5 Degrees Limited | St. Albans | 2018 |
| 1040 Tax Solutions Ltd | Manchester | 2017 |
| 10408929 Ltd | Kingston Upon Hull | 2016 |
| 1042 Edin Ltd. | Edinburgh | 2007 |
| 10442565 Ltd | Norwich | 2016 |
| 10449758 Ltd | Hull | 2016 |
| 1046 Taxis Limited | Edinburgh | 2007 |
| 10465413 Limited | Brighton | 2016 |
| 105 and 107 Northcote Road Limited | Dulwich | 2003 |
| 105 Byrne Road (Freehold) Limited | London | 2009 |
| 105 Design Ltd | Cirencester | 2023 |
| 105 Group Limited | King'S Lynn | 2017 |
| 105 Surveys Ltd | Wilmslow | 2026 |
| 105 West Architects Limited | Bristol | 2007 |
| 1050 Architects Limited | London | 2024 |
| 1052 Taxis Ltd. | Edinburgh | 2010 |
| 1057 Edin Limited | Edinburgh | 2008 |
| 106 Alberta Street Limited | London | 2006 |
| 106 Consult Ltd | Cardiff | 2019 |
| 106 Holly Park Road N.11 Limited | London | 1980 |
| 10650494 Ltd | London | 2017 |
| 1066 Content Marketing Ltd | Weybridge | 2022 |
| 1066 Kitchen Designs Limited | Bexhill-On-Sea | 2024 |
| 1069 Taxis Ltd. | Selkirk | 2014 |
| 107 Accountancy Ltd | Bristol | 2025 |
| 107 Bolingbroke Grove Limited | Dorking | 1992 |
| 107 Cathedral Road Limited | Cardiff | 1992 |
| 107 Consultancy Ltd | Belfast | 2025 |
| 107 Dartmouth Road Limited | London | 2007 |
| 107 Media Ltd | Leigh-On-Sea | 2013 |
| 107 Station Road, Hampton Management Company | Middlesex | 1993 |
| 1071 Group Limited | Canterbury | 2025 |
| 1071 Media Limited | Canterbury | 2025 |
| 1076 Scottaxis Limited | Edinburgh | 2017 |
| 108 Architects Ltd | Manchester | 2019 |
| 108 Chichele Road Limited | Woking | 1985 |
| 108 Electrical Testing Ltd | Doncaster | 2024 |
| 108 Holders Hill Road Ltd | London | 2016 |
| 108 Morts Ltd | Folkestone | 2024 |
| 108 MPH Limited | Birmingham | 2009 |
| 108 Okus Limited | Swindon | 2008 |
| 1080 Integration Limited | Crowthorne | 2009 |
| 1080 Virtual Media Consulting Ltd | Weybridge | 2012 |
| 1082 Taxis Ltd. | Loanhead | 2006 |
| 1083 Taxis Ltd. | Edinburgh | 2013 |
| 1084 Ltd | Kings Bromley | 2018 |
| 1086 Studio Ltd | Chichester | 2021 |
| 1086 Taxis Limited | Edinburgh | 2007 |
| 108SQM Limited | London | 2012 |
| 109 Architecture Limited | Peterborough | 2021 |
| 109 Design Ltd | Hyde | 2014 |
| 109 Interiors Limited | Hatfield | 2014 |
| 10920 Limited | London | 2000 |
| 1094 Edin Ltd. | Edinburgh | 2006 |