| 27M Professional Services Ltd | Wolverhampton | 2024 |
| 27MT Ecom Ltd | Manchester | 2026 |
| 27TH Design Ltd. | Roslin | 2015 |
| 27X Ltd | Isleworth | 2025 |
| 28 & 29 Bathwick Street (Management) Limited | Bath | 1989 |
| 28 Aegis Advisory Ltd | London | 2025 |
| 28 Albert Road (Management) Limited | Clevedon | 1979 |
| 28 Balaclava Road Management Company Limited | Kingston Upon Thames | 2004 |
| 28 Bells Ltd | Grimsby | 2018 |
| 28 Bickersteth Road Limited | London | 2004 |
| 28 Consultancy Ltd | London | 2025 |
| 28 Cranfield Ltd | London | 2004 |
| 28 Dean & Cole Ltd | London | 2025 |
| 28 Degrees North Limited | Congleton | 2010 |
| 28 Digital Group Ltd | Sale | 2024 |
| 28 Fellows Limited | London | 2026 |
| 28 Holmwood Road Management Co Limited | London | 2004 |
| 28 Knights Park Limited | Croydon | 1986 |
| 28 Limited | Lyndhurst | 2020 |
| 28 Marketing and Consultancy Ltd | Liverpool | 2026 |
| 28 Messaline Avenue (Management) Limited | London | 1987 |
| 28 North Discovery Limited | Cambridge | 2016 |
| 28 Squared Ltd | London | 2024 |
| 28 ST. George's Drive Management Limited | Wimborne | 1983 |
| 28-82 Consultancy Limited | Coventry | 2020 |
| 2806 Consulting Ltd | Bury | 2026 |
| 281 Design Ltd. | Farnham | 2017 |
| 2812 Limited | Stockton On Tees | 2014 |
| 2816 Consulting Ltd | Stoke-On-Trent | 2024 |
| 282 Keys Limited | Coventry | 2025 |
| 2827 Management Ltd | Birmingham | 2024 |
| 2828 Whisky Ltd | Auchterarder | 2018 |
| 283 Taxis Ltd. | Edinburgh | 2019 |
| 284 Developments Ltd | Weston-Super-Mare | 2020 |
| 285 Ladbroke Grove Management Company Limited | London | 1996 |
| 286 Solutions Ltd. | Cumnock | 2015 |
| 289 Green Lanes Limited | London | 1995 |
| 289 Management Limited | London | 2012 |
| 28A Ltd | London | 2022 |
| 28C Limited | Huntingdon | 2025 |
| 28FEBRUARY Ltd | London | 2022 |
| 28STUDIO Limited | Harrow | 2016 |
| 28WW Ltd | Brighton | 2015 |
| 29 Atelier Ltd | Brentwood | 2016 |
| 29 Buckingham Street (Brighton) Limited | Brighton | 2006 |
| 29 Buckland Crescent Management Company Limited | Milton Keynes | 1977 |
| 29 Business Solutions Ltd | Edinburgh | 2023 |
| 29 Carlingford Road Limited | | 1995 |
| 29 Champion Hill Management Company Limited | London | 2020 |
| 29 Cost Management Ltd | Leicester | 2020 |
| 29 CU & Co. Ltd | Stroud | 2015 |
| 29 CVR Ltd | Halstead | 2018 |
| 29 Degrees North Limited | Doncaster | 2025 |
| 29 Design & Creative Solutions Limited | Bristol | 2017 |
| 29 Ennismore Gardens Limited | Aylesbury | 2001 |
| 29 EYE Ltd | Sittingbourne | 2018 |
| 29 Forty Ltd | Tonbridge | 2022 |
| 29 Marketing Ltd | North Harrow | 2014 |
| 29 Miranda Road (Freehold) Limited | | 1999 |
| 29 Old Hill Limited | Chislehurst | 1996 |
| 29 Plumbing and Electrical Ltd | Eastbourne | 2022 |
| 29 ST. Martin's Road Limited | | 2005 |
| 29 Vicarage Grove Freehold Limited | London | 2016 |
| 29 Wolmer Gardens Ltd | London | 2020 |
| 29, London Road Limited | High Wycombe | 2023 |
| 29-05 Ltd | Stourbridge | 2023 |
| 29-37 Davies Street Limited | | 2006 |
| 29.3 Engineering Solutions Limited | Nottingham Business Park | 2023 |
| 2902 Limited | Warwick | 2023 |
| 2904 Consulting Ltd | Hornchurch | 2018 |
| 2909 Advisory Limited | London | 2025 |
| 291 Edin Ltd. | Edinburgh | 2004 |
| 291 Media Limited | Edinburgh | 2020 |
| 2911 Management Limited | Northampton | 2026 |
| 2911COLLECTIVE Ltd | London | 2025 |
| 293 Consult Ltd | Wolverhampton | 2026 |
| 295/297 Anlaby Road Management Company Limited | Hull | 1991 |
| 2950 Ltd | London | 2026 |
| 296 Developments Ltd | Williton | 2022 |
| 297 Consultancy Ltd | Leighton Buzzard | 2022 |
| 298 Limited | London | 2003 |
| 29:11 Management Services Limited | Grantham | 2018 |
| 29AERO Limited | London | 2016 |
| 29AM Ltd | Bromsgrove | 2020 |
| 29K Productions Ltd | Littleover | 2018 |
| 29SEVEN Ltd | Fowey | 2025 |
| 29TH Street Co. Ltd | London | 2025 |
| 29TWELVE Limited | Edinburgh | 2020 |
| 2:23AM Ltd | London | 2025 |
| 2A Consulting Ltd | Portishead | 2010 |
| 2A GOL Limited | London | 2019 |
| 2A Kings Cross Road (Finsbury) RTM Company Limited | London | 2005 |
| 2A Partners Ltd | London | 2022 |
| 2A Studios Ltd | London | 2026 |
| 2A1M Studio Ltd | Bristol | 2020 |
| 2AA Accounting Ltd | Manchester | 2024 |
| 2ABS Holdings Ltd | Cardiff | 2021 |
| 2AC International Limited | Twickenham | 2023 |
| 2ACE Performance Ltd | London | 2014 |
| 2AH Consulting Limited | Westerham | 2021 |