| 18K Sports Limited | Letchworth Garden City | 2018 |
| 18KCW Consulting Ltd | London | 2014 |
| 18M Limited | Aberporth | 2023 |
| 18M2 Limited | Poole | 2026 |
| 18MGT Limited | Northwich | 2022 |
| 18NORTH Limited | Harrow | 2021 |
| 18SLF Limited | Bedford | 2015 |
| 18TEN Marketing Limited | Barnsley | 2019 |
| 18TWELVE Ltd | London | 2008 |
| 18TWENTY Creative Marketing Ltd | Letwell | 2008 |
| 18TWENTY Limited | Manchester | 2015 |
| 18YM Ltd | London | 2021 |
| 19 Corporate Finance Limited | Cobham | 2012 |
| 19 Dorset Square Freehold Limited | Tonbridge | 2015 |
| 19 Ennismore Gardens Limited | Gloucester | 2001 |
| 19 Entertainment and Digital World Limited | London | 2025 |
| 19 Events London Limited | London | 2012 |
| 19 Exeter Road Dawlish Devon Management Company Limited | Devon | 1987 |
| 19 Ifield Road Management Limited | Newcastle Upon Tyne | 1997 |
| 19 Limited | Leicester | 2005 |
| 19 Nineteen Consultancy Ltd | London | 2026 |
| 19 Phoenix Ltd | Gravesend | 2025 |
| 19 Portland Place Limited | Brighton | 2006 |
| 19 Primrose Gardens Limited | Manchester | 2006 |
| 19 Queen's Gate Place Limited | London | 2003 |
| 19 Seventysix Ltd | Tadcaster | 2026 |
| 19 Southey Road Management Limited | London | 1992 |
| 19 VC Limited | Luton | 2025 |
| 19 Ventures Ltd | Billericay | 2025 |
| 19 Western Elms Residents Association Limited | Reading | 1987 |
| 19 White Hart Lane Limited | | 1996 |
| 19-24 Longfellow Way Limited | Chichester | 2001 |
| 19-41 Chiltern Avenue Management Co. Limited | Bedford | 2001 |
| 19-NINETY Ltd | Kidderminster | 2022 |
| 190 Columbia Road Freehold Limited | Bournemouth | 2022 |
| 190 Stapleton Hall Road Ltd | | 1996 |
| 1900 WJ Ltd | Sevenoaks | 2012 |
| 1901 Design Ltd | Cockfosters | 2011 |
| 1902 Media Limited | Birmingham | 2013 |
| 1903 Subsea Ltd | Aberdeen | 2017 |
| 1905 Surveying Solutions Limited | Leicester | 2012 |
| 1909 Consulting Ltd | London | 2025 |
| 1909014 Limited | Huddersfield | 1985 |
| 191 Architecture Ltd | Motherwell | 2023 |
| 1910 Marketing Consulting Ltd | London | 2021 |
| 1911 Holdings Ltd | Newcastle Upon Tyne | 2018 |
| 192 Consultancy Ltd | Birmingham | 2023 |
| 1920 Worldwide Ltd | London | 2014 |
| 1922 PTY Ltd | London | 2018 |
| 1923 Botanik Ltd | London | 2026 |
| 1924 Trustees Limited | Edinburgh | 2001 |
| 1927 Bespoke Ltd | Fleet | 2025 |
| 1927 Holdings Limited | Hengoed | 2019 |
| 192937 Ltd | Solihull | 2004 |
| 193 Countries Consortium Ltd | London | 2022 |
| 1930H Consulting Ltd | Wilmslow | 2025 |
| 1931 Ventures Ltd | Sutton | 2025 |
| 1932 Business Consulting Limited | Mildenhall | 2017 |
| 194 Sshg Ltd | London | 2026 |
| 1947 Advisors Ltd | London | 2024 |
| 1947 Group Ltd | Croydon | 2026 |
| 1952 Projects Limited | Ventnor | 2023 |
| 196 Green Lanes Limited | London | 2013 |
| 1960 Consulting Ltd | London | 2020 |
| 1960 Solutions Limited | Alresford | 2020 |
| 1961 North London Company Limited | London | 2025 |
| 1963 Consulting Ltd | London | 2025 |
| 1966 Entertainment Limited | London | 2005 |
| 1966 Limited | London | 2016 |
| 1968 Photography Ltd | London | 2018 |
| 197 Latchmere Road Limited | Crowborough | 2012 |
| 1971 Limited | Hertford | 2011 |
| 1972 Creative Agency Limited | Wakefield | 2020 |
| 1973 Consulting Ltd | Watford | 2019 |
| 1973UC Limited | Harrogate | 2025 |
| 1974 Consultancy Ltd | London | 2024 |
| 1974 Health and Safety Consultancy Limited | Cardiff | 2021 |
| 1974 Limited | Aberdeen | 2010 |
| 1976 Ventures Ltd | Chessington | 2025 |
| 1978 Enterprises Ltd | Frimley | 2019 |
| 198 Selhurst Road Freeholders Limited | London | 2010 |
| 1980 Advisory Limited | London | 2024 |
| 1980 Something Limited | London | 2023 |
| 1981 Ventures Limited | Westhill | 2019 |
| 1982 Advisory Limited | London | 2024 |
| 1983 Advisory Limited | London | 2023 |
| 1983 Management Ltd | London | 2013 |
| 1987 Media Limited | Walton-On-Thames | 2020 |
| 198FOR Limited | Cardiff | 2017 |
| 199 Barry Road, East Dulwich Limited | London | 2002 |
| 199 Biotechnologies Ltd | London | 2023 |
| 199 Longevity Ltd | London | 2025 |
| 1991CONSULTING Limited | London | 2025 |
| 1996 Party Wall (London) Ltd | London | 2025 |
| 1996PARTYWALL Ltd | London | 2015 |
| 1996PR Ltd | Southend-On-Sea | 2022 |
| 1997 Designs Limited | Surrey | 1997 |
| 1999 Limited | Glasgow | 2022 |
| 19B.UK Ltd | Cannock | 2021 |
| 19C Surveys Ltd | Brighton | 2021 |