| 0X Solution LAB Ltd | Stoke-On-Trent | 2025 |
| 0X01 Ltd | London | 2024 |
| 0X18 Ltd | London | 2025 |
| 0X27 Ltd | London | 2022 |
| 0X30 Ltd | London | 2024 |
| 0X6C Limited | Manchester | 2022 |
| 0X80 Ltd | London | 2021 |
| 0X85 Limited | London | 2023 |
| 0XAP Limited | London | 2024 |
| 0XB Technologies Ltd | London | 2025 |
| 0XBLOCK Limited | Harrow | 2016 |
| 0XCODE Ltd | Covent Garden | 2024 |
| 0XCRYPTOMORI Limited | Bolton | 2022 |
| 0XDEFENCE Ltd | London | 2026 |
| 0XF-SECURITY Limited | Castleford | 2023 |
| 0XINA Ltd | London | 2023 |
| 0XOS1 Ltd | London | 2025 |
| 0XOS1 Teck Ltd | London | 2026 |
| 0X{50} Labs Limited | London | 2025 |
| 1 & Only Music Limited | London | 2017 |
| 1 - Bridge Ltd | Colne | 2019 |
| 1 1 MTD Bridge Limited | Reading | 2025 |
| 1 2 3 Financial Ltd | Wellingborough | 2016 |
| 1 2 Audio Ltd | London | 2024 |
| 1 2 One Entertainment (UK) Ltd | Fareham | 2011 |
| 1 Alfa Bravo Communications Limited | Edinburgh | 2019 |
| 1 and ALL Broadband Ltd | Camborne | 2023 |
| 1 Camera Ltd | Ynystawe | 2004 |
| 1 Cent Magenta Communications Limited | Shrewsbury | 2017 |
| 1 Choice Internet Limited | Surrey | 2002 |
| 1 Click Services Limited | Cardiff | 2008 |
| 1 Cloud Group Limited | London | 2016 |
| 1 Creative (Solutions) Limited | Ossett | 2014 |
| 1 Cyber Valley Limited | London | 2020 |
| 1 Day Development Limited | London | 2025 |
| 1 Degree UK Finance Ltd | London | 2025 |
| 1 Digitals Europe Limited | Slough | 2016 |
| 1 Dots Limited | Ilford | 2022 |
| 1 Down 5 UP Solutions Limited | Leigh On Sea | 2023 |
| 1 Eight 4 Limited | Sandy | 2013 |
| 1 First Street Ltd | London | 2025 |
| 1 Four Productions Limited | London | 2018 |
| 1 Goal Analytics Limited | London | 2024 |
| 1 Idea Limited | High Wycombe | 2021 |
| 1 in 3 Women CIC | London | 2025 |
| 1 in 360 Limited | London | 2017 |
| 1 Infotech Limited | Hayes | 2020 |
| 1 JP Limited | Luton | 2013 |
| 1 Media Limited | Carnforth | 2006 |
| 1 MIN Manager Limited | Barnsley | 2017 |
| 1 Minus 1 Limited | London | 2003 |
| 1 MM Media Limited | London | 2010 |
| 1 MOD Ltd | London | 2026 |
| 1 More Buy Limited | London | 2014 |
| 1 Motion Digital Production Ltd | Cardiff | 2022 |
| 1 Oak Production Services Limited | London | 2025 |
| 1 of 1 World Limited | London | 2016 |
| 1 Office Equipment Limited | Dundee | 1992 |
| 1 on 1 Productions Limited | London | 2025 |
| 1 Onion Ltd | Southampton | 1997 |
| 1 OOF 4 Creative Ltd. | Manchester | 2025 |
| 1 Orion AI Ltd | London | 2026 |
| 1 Page Websites Ltd | Brighton | 2023 |
| 1 Percent Inspiration Ltd | Hertford | 2013 |
| 1 Ping Studios Ltd | Liverpool | 2023 |
| 1 Point 3 Creative Ltd | St. Peters Road | 2015 |
| 1 Red Cube Ltd | Dudley | 2007 |
| 1 Sash Properties Limited | London | 2024 |
| 1 Sequence Cyber Limited | Milton Keynes | 2024 |
| 1 Shot Tech Limited | London | 2023 |
| 1 Simple Way to Ltd | Kensington | 2025 |
| 1 Skill AI Ltd | Darlington | 2025 |
| 1 Software Limited | London | 2026 |
| 1 SOL Digital Services UK Ltd | Stoke-On-Trent | 2025 |
| 1 Solution Ltd | Stevenage | 2007 |
| 1 Sphere Ltd | Felixstowe | 2019 |
| 1 Stop Edits Ltd | London | 2025 |
| 1 Stop Money Ltd | London | 2019 |
| 1 Stop Web Limited | Ilford | 2011 |
| 1 Style Production & Events Limited | London | 2024 |
| 1 Sustainable Ltd | Aberdeen | 2021 |
| 1 Take Systems Limited | London | 2012 |
| 1 to 1 Technology Limited | Darlington | 2000 |
| 1 Touch IT Solutions Ltd | Slough | 2012 |
| 1 Touch Telecoms Ltd. | Glasgow | 2010 |
| 1 Trilliard Publishing Ltd | London | 2024 |
| 1 UP Productions Ltd | London | 2022 |
| 1&1 Limited | Manchester | 2023 |
| 1-2 Drive Ltd | Manchester | 2026 |
| 1-2-MOBILE Limited | Newcastle | 2009 |
| 1-4-U Media Services Limited | Sleaford | 2012 |
| 1-ADEN-G Limited | London | 2022 |
| 1-BIT Wonder Limited | Rugby | 2022 |
| 1-ECOMMERCE Ltd | Newcastle Upon Tyne | 2012 |
| 1-FIX Limited | Reading | 2008 |
| 1-LOVE Media Ltd | London | 2026 |
| 1-TEK Ltd | Enfield | 2021 |
| 1-UN Limited | Leeds | 2007 |
| 1-WEB Service Ltd. | Manchester | 2010 |
| 1-ZERO-1 Computer Solutions Limited | Teignmouth | 2012 |