| 99 Shooters Hill Road RTM Company Ltd | Households | 2017 |
| 99 Sinclair Road London Limited | Households | 2013 |
| 99 Stapleton Hall Road Freehold Limited | Real estate | 2022 |
| 99 Structural Engineers Ltd | Professional & scientific | 2020 |
| 99 Tech Solutions Ltd | Information & communication | 2025 |
| 99 the Vale Residents Management Company Ltd | Real estate | 2025 |
| 99 to 1 Limited | Information & communication | 2024 |
| 99 Tufnell Park Road Limited | Households | 2003 |
| 99 VPR Limited | Households | 2022 |
| 99 West END Lane Limited | Real estate | 2011 |
| 99 Winters Ltd | Information & communication | 2026 |
| 99 York Road Commercial Limited | Real estate | 2022 |
| 99 York Road Management Limited | Households | 2023 |
| 99 York Road Residences Limited | Construction | 2022 |
| 99&9 Consulting Ltd | Professional & scientific | 2023 |
| 99/101 Stillness Road London Ltd | Households | 2012 |
| 99/103 Westbourne Park Villas Ltd | Households | 2024 |
| 990 Ltd. | Information & communication | 2012 |
| 9918 Real Estate Ltd | Real estate | 2022 |
| 993 Vehicle Ltd | Real estate | 2023 |
| 9933 Live Media Co., Ltd | Wholesale & retail | 2025 |
| 993SC Limited | Professional & scientific | 2011 |
| 994 Ltd | Wholesale & retail | 2024 |
| 995 Communications Limited | Professional & scientific | 2023 |
| 997 Finchley Road Limited | Real estate | 2020 |
| 999 Digital Ltd | Wholesale & retail | 2025 |
| 999 Locks Limited | Other services | 2019 |
| 999 Medical Locums Limited | Extraterritorial | 2004 |
| 999 Nails Ltd | Other services | 2023 |
| 999 Security Limited | Extraterritorial | 1999 |
| 999 Serviceco Ltd | Health & social care | 2025 |
| 999 to 1 Limited | Wholesale & retail | 2020 |
| 999 Trade and Sales Ltd | Construction | 2006 |
| 99942 Media Limited | Wholesale & retail | 2026 |
| 999MPT Ltd | Administrative & support | 2023 |
| 99ASSISTS Ltd | Education | 2023 |
| 99DEL Ltd | Transport & logistics | 2025 |
| 99DYNAMICS Limited | Administrative & support | 2016 |
| 99E Limited | Professional & scientific | 2022 |
| 99I LLP | | 2010 |
| 99IMPERIAL Distribution Ltd | Transport & logistics | 2023 |
| 99IMPERIAL.COM Ltd | Information & communication | 2022 |
| 99P Plus Extra Ltd | Wholesale & retail | 2024 |
| 99P Store Ltd | Wholesale & retail | 2026 |
| 99PIECE Ltd | Arts & recreation | 2018 |
| 99UNCOVERED Ltd | Wholesale & retail | 2020 |
| 9:16 Ltd | Professional & scientific | 2025 |
| 9A Allision Road Ltd | Real estate | 2019 |
| 9A and ANT Limited | Real estate | 2017 |
| 9A Clarendon Road Limited | Real estate | 2013 |
| 9A Yerbury Road N19 Limited | Real estate | 2001 |
| 9AERA RTM Company Limited | Households | 2009 |
| 9AM Solutions Ltd | Information & communication | 2017 |
| 9ARV Limited | Real estate | 2026 |
| 9ASSETS LLC Ltd. | Information & communication | 2023 |
| 9B Allision Road Ltd | Real estate | 2019 |
| 9B Careers Ltd | Administrative & support | 2015 |
| 9BILLS Limited | Information & communication | 2020 |
| 9BS Group UK Ltd | Real estate | 2025 |
| 9C Allision Road Ltd | Real estate | 2019 |
| 9CG Limited | Extraterritorial | 2026 |
| 9CK Sports Holdings Limited | Financial services | 2022 |
| 9D Allision Road Ltd | Real estate | 2019 |
| 9D Properties Ltd | Real estate | 2026 |
| 9DB Studios Limited | Real estate | 2024 |
| 9DL Ltd | Information & communication | 2020 |
| 9DOTS Studio Ltd | Manufacturing | 2023 |
| 9E Allision Road Ltd | Real estate | 2019 |
| 9E Media Ltd | Other services | 2024 |
| 9ECOUK Limited | Wholesale & retail | 2025 |
| 9EG GB Lease Ltd | Real estate | 2025 |
| 9F Allision Road Ltd | Real estate | 2019 |
| 9FIN Limited | Information & communication | 2016 |
| 9GNS Holdings Limited | Real estate | 2021 |
| 9GNS Limited | Wholesale & retail | 2013 |
| 9GS Investments Ltd | Real estate | 2021 |
| 9GS Properties Ltd | Real estate | 2021 |
| 9H Eaton Square Ltd | Real estate | 2010 |
| 9HEK Ltd | Wholesale & retail | 2023 |
| 9HR Ltd | Real estate | 2025 |
| 9INE Degrees Ltd | Arts & recreation | 2020 |
| 9INE Ltd | Information & communication | 2026 |
| 9INE Services Limited | Administrative & support | 2018 |
| 9INE6IX Ltd. | Construction | 2023 |
| 9INEDOUBLE0WE Ltd | Wholesale & retail | 2020 |
| 9INETEEN Ltd | Wholesale & retail | 2023 |
| 9JA City Games Ltd | Information & communication | 2026 |
| 9JA.COM Limited | Information & communication | 2025 |
| 9JAPAY Holding Company Limited | Financial services | 2022 |
| 9JAPAY UK Limited | Information & communication | 2022 |
| 9JASTUDIO UK Ltd | Information & communication | 2024 |
| 9JULY Ltd | Wholesale & retail | 2026 |
| 9K Gold Security Services Ltd | Administrative & support | 2023 |
| 9K Labs Ltd | Information & communication | 2025 |
| 9KGG Ltd | Wholesale & retail | 2024 |
| 9KITCHENS Catering Ltd | Hospitality | 2019 |
| 9KSTAYS Ltd | Hospitality | 2026 |
| 9L Fire Protection Ltd | Construction | 2025 |
| 9LIVINGS Limited | Financial services | 2022 |
| 9M Studios Ltd | Information & communication | 2020 |