| 130 Group Ltd | Woking | 2024 |
| 1300 Edin Ltd | Edinburgh | 2020 |
| 1301 Autos & Repairs Ltd | Bathgate | 2025 |
| 1308 EST. Ltd | Halifax | 2025 |
| 130ONLINE Limited | Canvey Island | 2016 |
| 130R Services Limited | Bicester | 2021 |
| 131 Hornsey Road Limited | | 2006 |
| 1310 Taxis Ltd. | Edinburgh | 2011 |
| 1311 CAB Company Ltd | Edinburgh | 2006 |
| 1313 Consultancy Ltd | Birmingham | 2023 |
| 1314 Taxis Ltd. | Edinburgh | 2012 |
| 1316 Consultancy Ltd | Liverpool | 2026 |
| 13168375 Ltd | Coventry | 2021 |
| 131A Alexandra Road Management Limited | London | 2012 |
| 131H Ltd | Frinton-On-Sea | 2019 |
| 132 Palmerston Road Flat Management Limited | Folkestone | 2004 |
| 132 Properties Limited | Newbury | 2001 |
| 132-138 Market Lane Management Company Limited | Gateshead | 2014 |
| 1320 Taxis Ltd. | Edinburgh | 2013 |
| 1328 Taxis Ltd. | Kirkliston | 2014 |
| 133 Digital Ltd | Cheltenham | 2026 |
| 133 Group Ltd | Ilford | 2024 |
| 1331 Inc Ltd | Poole | 2011 |
| 1337 Consulting Ltd | Bexleyheath | 2026 |
| 1337 Digital Limited | London | 2020 |
| 1337 Solutions Limited | Wirral | 2022 |
| 13389688 Ltd | Coventry | 2021 |
| 13389769 Ltd | Coventry | 2021 |
| 1339 Consultancy Ltd | Retford | 2024 |
| 134 Drakefell Management Company Limited | Kingston Upon Thames | 2007 |
| 134 Goldhurst Terrace Management Company Limited | | 1987 |
| 134 Labs Limited | Reading | 2025 |
| 1349 Limited | London | 2013 |
| 135 Broomwood Road Limited | London | 2000 |
| 135 Services Ltd | Watford | 2020 |
| 135 Waldegrave Road Management Company Limited | Teddington | 2004 |
| 135 Wallwood Road Limited | London | 2002 |
| 1352 Ltd | Middlewich | 2024 |
| 13557353 Limited | Uxbridge | 2021 |
| 1357S Ltd | London | 2023 |
| 1359 Advisory Limited | Norwich | 2023 |
| 136 Belsize Road RTM Company Limited | London | 2015 |
| 136-139 Woking Road Limited | Brentwood | 2004 |
| 136-142 Rowood Drive Management Company Limited | Solihull | 2001 |
| 13631487 Ltd | Hayes | 2021 |
| 137 Evering Road (Freehold) Limited | Newbury | 2009 |
| 137 Hurlingham Road Management Company Limited | | 2005 |
| 137 Q Drive Limited | London | 2008 |
| 137 Ventures Ltd | Woking | 2024 |
| 1370 Investments Ltd | Warrington | 2025 |
| 137050 Limited | | 1914 |
| 138 Accounting Ltd | Harrogate | 2014 |
| 138 Book-Keeping Ltd | Newport Pagnell | 2020 |
| 138 Designs Limited | Seaham | 2015 |
| 138 Guitar Tech Ltd | Faversham | 2026 |
| 1382 Consultants Limited | Chesterfield | 1998 |
| 13837 Ltd | London | 2012 |
| 139 Beaufort Street Management Company Limited | London | 1996 |
| 139 Harvist Road Management Company Limited | London | 2015 |
| 139 Strategy Limited | Gillingham | 2015 |
| 13A Research Ltd | London | 2023 |
| 13C Consulting Ltd | Lichfield | 2018 |
| 13FISH Ltd | Gerrards Cross | 2022 |
| 13HUNDRED Creative Partners Limited | Peebles | 2012 |
| 13I Consulting Ltd | Lytham St.Annes | 2016 |
| 13K Limited | Harrogate | 2014 |
| 13M Limited | Birmingham | 2020 |
| 13SEVEN Group Ltd | London | 2022 |
| 13T Limited | Heywood | 2021 |
| 13TEEN Ltd | London | 2025 |
| 13TEN Consulting Ltd | Oxted | 2026 |
| 13TH Day Films Limited | Stoke-On-Trent | 2006 |
| 13TH Design Co Ltd | Bridgwater | 2024 |
| 13TH Legion Limited | Congleton | 2006 |
| 13TH Month Limited | Wakefield | 2024 |
| 13THIRTEEN Solutions Ltd | Ashby-De-La-Zouch | 2023 |
| 13TWELVE Limited | Colchester | 2019 |
| 13WEEKS Cashflow Ltd | London | 2026 |
| 13WEST Communications Ltd | Birkenhead | 2013 |
| 13X Architecture Limited | Bromley | 2012 |
| 14 Aberdare Gardens Management Limited | London | 1991 |
| 14 Calthorpe Street Freehold Limited | London | 2007 |
| 14 Compayne Gardens Limited | London | 2002 |
| 14 Curzon Street 2 Limited | London | 2016 |
| 14 East Ltd | London | 2023 |
| 14 Fairbridge Road RTM Company Limited | London | 2015 |
| 14 Four Analytics Limited | Daventry | 2014 |
| 14 GIS Limited | London | 2012 |
| 14 Jackson Road Management Company Limited | Bedford | 2004 |
| 14 Kellett Road Management Limited | London | 2006 |
| 14 Kensington Place Bath (Management) Limited | Bath | 1988 |
| 14 Meath Street Management Limited | London | 2001 |
| 14 North Engineering Limited | Antrim | 2026 |
| 14 Ocean Ltd | Northwood | 2025 |
| 14 Peridot Ltd | Harrow | 2020 |
| 14 Philbeach Gardens Residents Company Limited | London | 1999 |
| 14 Projects Limited | Cheltenham | 2022 |
| 14 Red Door Ltd | Poole | 2024 |
| 14 Rosendale Road Limited | London | 2007 |
| 14 Septembre London Limited | Goffs Oak | 2017 |