| 8MG SAS Limited | Mitcham | 2024 |
| 8MM Media Limited | Barnet | 2019 |
| 8MOSAIC Ltd | London | 2024 |
| 8ND Limited | Bradford | 2025 |
| 8O65 Limited | Billingshurst | 2014 |
| 8OFFICE Ltd | Cardiff | 2021 |
| 8ON Consulting Ltd | Oldham | 2021 |
| 8PCX Limited | London | 2014 |
| 8PERCENTANDROID Limited | Worcester Park | 2015 |
| 8PLANNING Limited | Manchester | 2025 |
| 8POD Management Ltd | London | 2025 |
| 8POINT8 Capital Ltd | London | 2019 |
| 8POWER Limited | Cambridge | 2015 |
| 8PP Barristers & Associates Ltd | Liverpool | 2023 |
| 8STEPSPM Ltd | Glossop | 2026 |
| 8T7 Consultancy Services Limited | Marlow | 2013 |
| 8TEN12 Ltd | Keston | 2018 |
| 8TH Day Strategy Ltd | London | 2018 |
| 8TH Design Co Ltd | Bridgwater | 2024 |
| 8TH Dial Ltd | Stoughton | 2019 |
| 8TH Floor Limited | Isleworth | 2019 |
| 8TH Muse Ltd | Borehamwood | 2019 |
| 8TH October Limited | Salford | 2025 |
| 8TH Port Limited | London | 2016 |
| 8TH ROW Ltd | Glasgow | 2013 |
| 8TH Street Communications Ltd | London | 2025 |
| 8TH Wonder Group Limited | Wigan | 2013 |
| 8TH Wonder Wealth Ltd | Long Eaton | 2023 |
| 8TIMESLUCKY Ltd | London | 2025 |
| 8TWELVE Consulting Limited | St. Albans | 2014 |
| 8VA Limited | Bristol | 2006 |
| 8X Ltd | Otley | 2016 |
| 8YRNE Limited | Liverpool | 2024 |
| 9 Acramans Road (BS3) Limited | Bristol | 1991 |
| 9 Atherton Street Limited | London | 2011 |
| 9 Braybrooke Terrace (Hastings) Limited | Hastings | 2006 |
| 9 Calonne Road Management Company Limited | | 1991 |
| 9 Castellain Road Management Company Limited | London | 2015 |
| 9 CHA Ltd | Birmingham | 2024 |
| 9 Crimes Ltd | London | 2025 |
| 9 Crouch Hall Road Management Limited | London | 1989 |
| 9 Degrees East Limited | London | 2018 |
| 9 Dimensions of Wellness Limited | London | 2024 |
| 9 Dowry Square Management Company Limited | Bristol | 2014 |
| 9 Dragon Systems Limited | Kington | 2004 |
| 9 Eton Avenue Limited | London | 1994 |
| 9 Fiftysix Consulting Limited | Lytham St.Annes | 2020 |
| 9 Frame GIN Consulting Limited | Maldon | 2017 |
| 9 Hilsea Street Limited | | 2005 |
| 9 Impressions Limited | London | 2006 |
| 9 Lives Cat Rescue C.I.C. | Hull | 2024 |
| 9 Lives Consultancy Limited | Glasgow | 2016 |
| 9 Manor Place Limited | | 2000 |
| 9 Monkeys Limited | Crail | 2015 |
| 9 Mountains Ltd | London | 2024 |
| 9 North West Ltd | Wirral | 2014 |
| 9 Pelham Road Limited | New Malden | 1988 |
| 9 Powderham Terrace Management Company Limited | Teignmouth | 2000 |
| 9 Principles Ltd | Stockport | 2019 |
| 9 Redburn Street Limited | Hook | 2006 |
| 9 Ridgway Gardens Freehold Limited | London | 2012 |
| 9 Stars Accountants Limited | London | 2017 |
| 9 Stories Interior Design Ltd | Watford | 2020 |
| 9 Waungron Road Management Limited | Cardiff | 2000 |
| 9 Yards Creative Limited | Exeter | 2006 |
| 9/11 Centre for Counterterrorism and Security | London | 2024 |
| 9/9A Devonshire Villas (Bath) Management Company Limited | Bath | 1986 |
| 90 10 Agency Limited | Ilford | 2018 |
| 90 Admin Hub. Ltd | London | 2024 |
| 90 Consulting Limited | Portsmouth | 2025 |
| 90 Days Creative Ltd | London | 2020 |
| 90 Degree Consulting Limited | Whyteleafe | 2010 |
| 90 Degrees North Limited | Manchester | 2023 |
| 90 Everything Limited | Portsmouth | 2024 |
| 90 Four Limited | London | 2022 |
| 90 Lewisham Way Limited | London | 2001 |
| 90 Ltd | Weybridge | 2012 |
| 90 Onslow Gardens Freehold Limited | London | 1996 |
| 90 Stone Road Management Company Limited | Norfolk | 1991 |
| 90 Taxis Ltd. | Edinburgh | 2017 |
| 90-FIVE Ltd | Bath | 2024 |
| 900 Aviation & Defence Consultancy Services Limited | Chard | 2012 |
| 901 Taxis Ltd. | Edinburgh | 2010 |
| 9010 Consultants Limited | London | 2011 |
| 903 Taxis Ltd. | Dalkeith | 2006 |
| 904.1 Services Limited | London | 2022 |
| 905 Edin Ltd. | Edinburgh | 2006 |
| 909 Marketing Ltd | London | 2025 |
| 909 Revolutions Ltd | London | 2023 |
| 90:10 Group Limited | London | 2009 |
| 90TEN Ltd. | Horsham | 2001 |
| 90UP Ltd | London | 2016 |
| 91 Barden Road Limited | Wrotham Heath | 2021 |
| 91 Cathles Road Residents Limited | | 2001 |
| 91 Design Limited | Bridlington | 2021 |
| 91 Fordwych Road Management Company Limited | London | 1983 |
| 91 Friern Road Limited | | 2001 |
| 91 Highbury Hill Management Company Limited | Cannock | 2000 |
| 91 Ltd | Ilford | 2025 |
| 91 Media Cinematography Ltd | Sheffield | 2024 |