| 1X Media Entertainment Limited | Sheffield | 2025 |
| 2 and 4 Wheel Motorsport Limited | Carrickfergus | 2002 |
| 2 BE a DJ Limited | Manchester | 2024 |
| 2 Boards and a Passion Community Interest Company | Hyde | 2007 |
| 2 Boats Events Ltd | London | 2013 |
| 2 Bobs Brewing Company Limited | Leeds | 2011 |
| 2 DA Stage Performing Arts & Childcare Club. | Wembley | 2011 |
| 2 Elements Group Ltd | Nuneaton | 2025 |
| 2 Entertain Video Limited | London | 1985 |
| 2 FAT Ladies Leisure Limited | Bedworth | 2011 |
| 2 for the Road Events Ltd | London | 2013 |
| 2 LAP Ltd | Loughborough | 2025 |
| 2 Lesbians Worldwide Ltd | Nottingham | 2025 |
| 2 Litre CUP Limited | Northampton | 2017 |
| 2 MAD Huskies Events Ltd | London | 2018 |
| 2 Northdown Limited | London | 2017 |
| 2 Percent Sports Group Ltd | Bishop'S Stortford | 2020 |
| 2 Queers Home Page Ltd | Finsbury Park | 2025 |
| 2 Seas Motorsport Ltd | Croydon | 2019 |
| 2 Steps East Limited | Abingdon | 2019 |
| 2 TON Productions Limited | St. Neots | 2012 |
| 2 Tone Tattoo's Limited | Inverness | 2007 |
| 2 Truths, 1 LIE Ltd | Woodford Green | 2024 |
| 2 Valleys Ltd | Dewsbury | 2019 |
| 2 Worlds Ltd | Wickford | 2015 |
| 2-6 LFT Limited | Truro | 2024 |
| 2-TONE Central Ltd | Coventry | 2010 |
| 20 South Street Ltd | King'S Lynn | 2025 |
| 20 Stories High | Liverpool | 2006 |
| 20&25 Luxuriant Holidays Ltd | London | 2026 |
| 20,000 Voices | Trowbridge | 1998 |
| 20/20 Vision Recordings Limited | Leeds | 2000 |
| 200 Sports Management Limited | Manchester | 2025 |
| 201 Dance Company Ltd | Brighton | 2017 |
| 202 Production Support Limited | York | 2023 |
| 2020 Art N.I. Ltd | Whitehead | 2021 |
| 2020 Community Sport C.I.C. | Grimsby | 2014 |
| 2020 Recreation Ltd | London | 2012 |
| 2020 Skate and Ride CIC | Bridport | 2020 |
| 2020K Limited | Waterlooville | 2019 |
| 2020PROTOUR Limited | Huddersfield | 2019 |
| 2020TOURS Limited | Huddersfield | 2023 |
| 2023 Cycling World Championships Limited | Edinburgh | 2020 |
| 2025 SLZ PAR2 PDL (Investco) Limited | Shirebrook | 2025 |
| 2026 PR3 SZL (Investco) Limited | Shirebrook | 2025 |
| 2027 PDL PAR4SLZ (Investco) Limited | Shirebrook | 2026 |
| 206 Events Ltd | London | 2022 |
| 208NETBALL Ltd | Manchester | 2026 |
| 209RADIO Limited | Cambridge | 2005 |
| 20GRID Ltd | Milton Keynes | 2024 |
| 20TWENTY Productions CIC | March | 2011 |
| 20TWENTY Store Ltd | Banchory | 2020 |
| 21 AV Ltd | Uxbridge | 2021 |
| 21 Events Scotland Ltd | Glasgow | 2021 |
| 21 Miles Limited | Camden Town | 2016 |
| 21 Talent Management Limited | Manchester | 2023 |
| 21 Theatre Limited | Cambridge | 2015 |
| 21 Union Fitness Ltd | Gloucester | 2019 |
| 21-16 Limited | London | 2023 |
| 2108 Limited | Manchester | 2025 |
| 212 Music Group Limited | London | 2016 |
| 213 Music Limited | London | 2014 |
| 21CC Events Limited | Bathgate | 2014 |
| 21CC Fireworks Limited | Bathgate | 2014 |
| 21CC Group Limited | Bathgate | 2012 |
| 21CC Productions Limited | Bathgate | 2018 |
| 21CC Pyrotechnics Limited | Bathgate | 2014 |
| 21MILLION Production Ltd | Haslemere | 2017 |
| 21ST Century Abba Ltd | Solihull | 2022 |
| 21ST Century Art Limited | Hastings | 1998 |
| 21ST Century Artists Limited | Aylesbury | 1999 |
| 21ST Century Combat Ltd | Chessington | 2022 |
| 21ST Century CUE Sports Company Limited | Liverpool | 2009 |
| 21ST Century Global Entertainment Corporation Limited | Oldham | 2021 |
| 21ST Century Lindisfarne Ltd | North Shields | 2014 |
| 21ST Century Noise Limited | London | 2021 |
| 21ST Century Promotions Ltd | Chessington | 2022 |
| 21ST Solutions Limited | Reading | 2010 |
| 22 Crew Ltd | London | 2024 |
| 22 Music Academy Ltd | Leighton Buzzard | 2025 |
| 22 Padel Limited | Bradford | 2023 |
| 22 Productions Ltd | Chester | 2025 |
| 22 Summers Limited | London | 2024 |
| 22 Tattoo Ltd | Bournemouth | 2015 |
| 22 Thor Fitness Ltd | Chesterfield | 2018 |
| 22 Thoroughbred Racing Limited | Hungerford | 2024 |
| 22 Yards Cricket Centre Ltd | Stroud | 2023 |
| 2204 Limited | Rochester | 2025 |
| 221 Club Limited | London | 2022 |
| 221B Baker Street Ltd | London | 2021 |
| 221B Limited | London | 2009 |
| 2247 Ltd. | Cornhill-On-Tweed | 2010 |
| 226 Consulting Ltd | Runcorn | 2024 |
| 22ADVANTAGE Ltd | Watford | 2019 |
| 22GPROMOTIONS Ltd | Stourbridge | 2024 |
| 22MC Limited | Harrow | 2022 |
| 23 Associates Limited | London | 2004 |
| 23 Bath ST Ltd | Frome | 2018 |
| 23 Degrees Artists Ltd | Brighton | 2023 |
| 23 Degrees Music Limited | Brighton | 2022 |