| 2ND Screen Media Limited | Kingston Upon Thames | 2011 |
| 2ND Sight Limited | Staines | 1997 |
| 2ND Sight Paranormal Ltd | Aylesbury | 2025 |
| 2ND Studio Limited | Warrington | 2012 |
| 2ND Time Around Limited | Leicester | 2004 |
| 2NDBOUNCE Limited | South Croydon | 2009 |
| 2NDSTAGE Limited | London | 2023 |
| 2OBS Property Limited | Sevenoaks | 1992 |
| 2PM Talent Limited | Birmingham | 2025 |
| 2PO2 Group Ltd | Redcar | 2017 |
| 2POINT Talent Group Ltd | East Ham | 2026 |
| 2PURE Products Limited | Newcastle Upon Tyne | 2009 |
| 2Q Consultants Ltd | Blackburn | 2012 |
| 2Q Group Ltd | Luton | 2025 |
| 2QD Design Limited | Hertford | 2020 |
| 2R Investments Limited | Haslemere | 2011 |
| 2RELYON Limited | Grimsby | 2013 |
| 2RLM Limited | Warrington | 2024 |
| 2RS Construction Limited | Redhill | 2025 |
| 2S IP Limited | London | 2022 |
| 2S Recruitment Ltd | Polegate | 2018 |
| 2SAL Capital Ventures Ltd | London | 2016 |
| 2SCONSULT Limited | Aberystwyth | 2020 |
| 2SDAY Ltd | London | 2026 |
| 2SG Ltd | London | 2012 |
| 2SHINECLEANING Ltd | Birmingham | 2026 |
| 2SITE Construction Recruitment Ltd | London | 2021 |
| 2SPOKE Software Services Limited | Warrington | 2014 |
| 2SYS Resource Ltd | Norwich | 2020 |
| 2TALL Limited | London | 2011 |
| 2TECH Surrey Limited | London | 2016 |
| 2THEMAXX Limited | Dartford | 2014 |
| 2THENTH Limited | London | 1986 |
| 2TMI Ltd | Wymondham | 2022 |
| 2TRAIN Ltd | Lingfield | 2008 |
| 2TWENTY2 S&C Ltd | Falmouth | 2020 |
| 2U Services Ltd | Liverpool | 2026 |
| 2UOD Ltd | Cardiff | 2016 |
| 2V AY Ltd | Aylesbury | 2026 |
| 2V Cleaning & Property Maintenance Limited | Beckenham | 2015 |
| 2V Cleaning Limited | Shipley | 2017 |
| 2V Ltd | Uxbridge | 2025 |
| 2V Property Limited | Reading | 2018 |
| 2VENTURE Floor Care Limited | Shipley | 2018 |
| 2WAY Investment Limited | Wolverhampton | 2024 |
| 2WENTY 5IVE Limited | Cardiff | 2024 |
| 2WILD Trading Ltd | Wigan | 2019 |
| 2WINS Digital Ltd | London | 2022 |
| 2Z Ltd | Uxbridge | 2024 |
| 2Z Security Limited | Ilford | 2019 |
| 3 AC Freehold Ltd | Eastbourne | 2023 |
| 3 Anerley Hill Management Co. Limited | London | 1990 |
| 3 Angle Consultants Limited | Leicester | 2011 |
| 3 Beams Property Limited | London | 2025 |
| 3 Blue Dots Technologies Limited | Redditch | 2003 |
| 3 Bridges Capital Limited | Edinburgh | 2018 |
| 3 Brothers Consultants Limited | Chester | 2016 |
| 3 Brothers Fencing & Decking Ltd | Southampton | 2025 |
| 3 Brothers Fencing Ltd | Southampton | 2025 |
| 3 Buffalo Security Services Ltd | Northampton | 2020 |
| 3 C Alliance Healthcare Ltd | Norwich | 2023 |
| 3 C Cleaning Co Limited | Yateley | 2010 |
| 3 C'S Coventry Carpentry & Construction Limited | Coventry | 2015 |
| 3 CD Cleaning Ltd | Aldershot | 2017 |
| 3 Chord Pro Ltd. | London | 2022 |
| 3 Circles Care Limited | Abergavenny | 2018 |
| 3 Counties Childcare Limited | Evesham | 2010 |
| 3 Counties Cleaning and Facilities Services Ltd | Betchworth | 2013 |
| 3 Counties Gardens Ltd | Haslemere | 2019 |
| 3 Counties Grounds Maintenance Ltd | London | 2022 |
| 3 Counties Mortgage Services Limited | Luton | 2003 |
| 3 Counties Pro Clean Ltd | Ledbury | 2022 |
| 3 County Care Limited | Marlow | 2013 |
| 3 D Contract Services Limited | Berwick-Upon-Tweed | 2005 |
| 3 D I (Midlands) Limited | Bolton | 2017 |
| 3 D Koncepts Limited | Warwickshire | 2004 |
| 3 Dots Services Ltd | Stevenage | 2018 |
| 3 Ducks - Home and Business Maintenance Services Ltd | Leicester | 2012 |
| 3 Engineering Limited | Atherstone | 2017 |
| 3 G Poultry Services Limited | Crossford | 2008 |
| 3 Gales Gardens LON Limited | London | 2018 |
| 3 GEN Property Services Ltd | Ilford | 2026 |
| 3 Green Management Ltd | Crawley | 2020 |
| 3 HB Limited | Lincolnshire | 2018 |
| 3 Jays Fishing Limited | Fraserburgh | 2010 |
| 3 Knights Security Limited | Birmingham | 2022 |
| 3 Leaves Cleaning Ltd | Slough | 2025 |
| 3 Leaves Design Limited | Loughborough | 2017 |
| 3 Lions Security Ltd | Wellingborough | 2015 |
| 3 Little Peas Limited | Congleton | 2023 |
| 3 Mars Consultancy Ltd | London | 2013 |
| 3 Nisecurity Ltd | Bangor | 2022 |
| 3 Percy Mews Management Company Limited | Edgware | 2001 |
| 3 Point Recruitment Ltd | Bedford | 2025 |
| 3 Points Travel Ltd | Hemel Hempstead | 2025 |
| 3 R Consulting Limited | Manchester | 2008 |
| 3 Recruit Limited | Sutton Coldfield | 2016 |
| 3 Rental Services Ltd | Harrow | 2021 |
| 3 RG Associates Limited | Poole | 2003 |
| 3 Rivers Clinic Limited | London | 2009 |