| 17NORTHUK Ltd | London | 2022 |
| 17SIX Ltd | London | 2021 |
| 17SIX Management Ltd | Burntwood | 2020 |
| 18 AK Limited | Wolverhampton | 2025 |
| 18 Cambridge Road (Freehold) Limited | London | 2013 |
| 18 Consultancy Services Ltd | Coventry | 2026 |
| 18 Degrees Below Ltd | London | 2017 |
| 18 Design Limited | Surbiton | 2007 |
| 18 Dinsmore Road Limited | Faringdon | 2003 |
| 18 Drewstead Road Management Ltd | London | 2016 |
| 18 Grosvenor Place Bath (Management) Limited | Bath | 1986 |
| 18 Growth Ltd | Bishop'S Stortford | 2022 |
| 18 Limited | Leigh-On-Sea | 2019 |
| 18 Maberley Road Management Company Limited | London | 2000 |
| 18 November Ltd | London | 2023 |
| 18 Oxford Road, Exeter, Management Co Limited | Exeter | 1983 |
| 18 Park Crescent Residents Limited | | 1998 |
| 18 Pembridge Place Limited | | 1990 |
| 18 Seconds Management Ltd | London | 2025 |
| 18 SIX Event Consultants Ltd | Driffield | 2017 |
| 18 SIX Holdings Ltd | Huntly | 2024 |
| 18 ST George's Square (Freehold) Limited | London | 2016 |
| 18 ST. Paul's Avenue Limited | London | 2003 |
| 18 the Beacon (Exmouth) Management Company Limited | Devon | 1990 |
| 18 Wilson Road Camberwell Limited | London | 2005 |
| 18 Wrentham Avenue Limited | | 1998 |
| 18-07 Careers Corporate Limited | Telford | 2019 |
| 18/20 Fernlea Road Ltd | Grays | 2012 |
| 180 Business Solutions Ltd | Newbury | 2020 |
| 180 Degrees Consulting Bath Community Interest Company | Bath | 2022 |
| 180 Degrees Consulting Edinburgh CIC | Edinburgh | 2026 |
| 180 Degrees Consulting Exeter CIC | London | 2020 |
| 180 Degrees Consulting Leeds CIC | Merthyr Tydfil | 2025 |
| 180 Degrees Consulting Qmul CIC | Manchester | 2024 |
| 180 Degrees Consulting Sheffield CIC | Sheffield | 2024 |
| 180 Degrees Consulting Warwick CIC | Leamington Spa | 2023 |
| 180 Degrees Consulting York Ltd | York | 2021 |
| 180 Degrees Liverpool CIC | Liverpool | 2025 |
| 180 Films T/A 24 Pictures Limited | Oldham | 2016 |
| 180 Group Limited | Chichester | 2015 |
| 180 Ilderton Road Limited | Brentwood | 2016 |
| 180 Life Degree Ltd | London | 2021 |
| 180 Marketing Ltd | Manchester | 2024 |
| 1801 Financial Planning Ltd | Coventry | 2021 |
| 1801 Partnerships Ltd | Sawbridgeworth | 2025 |
| 1803 Training Ltd | Leeds | 2019 |
| 1806 Consultancy Limited | Rayleigh | 2013 |
| 180SOUTH Limited | Stockport | 2013 |
| 1810 Management Limited | Wrexham | 2012 |
| 1818 Limited | Swanley | 2020 |
| 181ST Street Ltd | St. Leonards-On-Sea | 2022 |
| 182 CAB Company Limited | Loanhead | 2004 |
| 182 Door to Door Advertising Limited | Bristol | 2025 |
| 1826 Consulting Ltd | London | 2022 |
| 183TAX Ltd | London | 2026 |
| 184 East Street Residents Company Limited | Sutton | 2003 |
| 184 Trinity Road London SW17 Limited | | 2004 |
| 1846 Nominees Limited | Warwickshire | 2006 |
| 1847 Subsea Engineering Limited | Aberdeen | 2011 |
| 185.APPAREL Ltd | Birmingham | 2026 |
| 1850 Business Solutions Ltd | Chester | 2019 |
| 185A Uxbridge RD Management Ltd | Harrow | 2022 |
| 186 London Limited | London | 2020 |
| 186 Lower Addiscombe Road Limited | Chard | 2008 |
| 1865 Limited | | 2007 |
| 1869 Limited | Melksham | 2014 |
| 187 Accountants Ltd | London | 2025 |
| 187 Consulting Ltd | Leigh On Sea | 2019 |
| 187 Goldhurst Terrace Freehold Ltd | London | 2015 |
| 187 Miles Limited | Hampton Wick | 2006 |
| 1874 Engineering Ltd | Nottingham | 2013 |
| 1874 Holdings Ltd | Bellshill | 2023 |
| 1874CC Limited | Warrington | 2024 |
| 1876 Limited | Romsey | 2022 |
| 1878CONSULTANCY Ltd | Manchester | 2022 |
| 1879 Consultancy Ltd | Croydon | 2023 |
| 1879 Events Limited | North Berwick | 2011 |
| 188 Argyle ST Limited | Ulverston | 2020 |
| 1880 Consulting Ltd | Horley | 2024 |
| 1880 Services Limited | Stourbridge | 2009 |
| 1880 Video Productions C.I.C. | Lisburn | 2018 |
| 1882 Consulting Limited | Inverurie | 2024 |
| 1883 Partners, Ltd | Bournemouth | 2024 |
| 1884 Management Consultancy Limited | Leicester | 2020 |
| 1884 Management Consultancy SPV 1 Ltd | Leicester | 2024 |
| 1885 Media Ltd | Newport Pagnell | 2022 |
| 1886 Draughting Limited | Newton Aycliffe | 2024 |
| 1887 Comms Ltd | London | 2025 |
| 1888 Engineering Ltd | Brora | 2023 |
| 1888 Ltd | Stratford | 2018 |
| 1890 Limited | Leigh-On-Sea | 2024 |
| 1891 Limited | Potters Bar | 2009 |
| 1893 Partners Limited | Wimborne | 2025 |
| 1894 Interim and Consulting Limited | Chester | 2019 |
| 1894 Limited | Heywood | 2020 |
| 1894 Management Limited | Rye | 2020 |
| 18A-D North Common Road Freehold Limited | London | 2013 |
| 18AT Limited | Aberdeen | 2017 |
| 18F UK Holding Company Limited | London | 2012 |
| 18FIFTY Ltd | London | 2021 |