| 492 Hornsey Road Limited | Households | 2021 |
| 492 Seven Sisters Ltd | Real estate | 2025 |
| 4923 Ltd | Professional & scientific | 2024 |
| 493 Caledonian Road (Freehold) Limited | Households | 2004 |
| 493 Kings Road Limited | Households | 2000 |
| 493 Properties Limited | Real estate | 2021 |
| 494 Consulting Ltd | Administrative & support | 2016 |
| 49410 Ltd | Transport & logistics | 2026 |
| 495 Lordship Lane Ltd | Hospitality | 2025 |
| 495BPR Ltd | Real estate | 2026 |
| 496 LBR Ltd | Households | 2019 |
| 497 Bucks Limited | Real estate | 2022 |
| 499 Hackney Road Ltd | Real estate | 2023 |
| 49A Oxford Road Limited | Real estate | 2020 |
| 49DEG Limited | Professional & scientific | 2021 |
| 49HASS Ltd | Real estate | 2024 |
| 49HX Ltd | Wholesale & retail | 2018 |
| 49INDUSTRIE Distribution Materiaux Ltd | Wholesale & retail | 2026 |
| 49TH Parallel IP Ltd | Professional & scientific | 2025 |
| 49WEST Ltd | Professional & scientific | 2021 |
| 49X Ltd | Information & communication | 2026 |
| 49X Solutions Ltd | Information & communication | 2023 |
| 4:30 Limited | Construction | 2024 |
| 4:4:4 Productions Ltd. | Information & communication | 2008 |
| 4A and 4B Rossiter Road Limited | Real estate | 2012 |
| 4A Expert Ltd | Construction | 2024 |
| 4A Films Ltd | Information & communication | 2026 |
| 4A Group Ltd | Information & communication | 2021 |
| 4A Kings Avenue RTM Company Limited | Households | 2013 |
| 4A Management Services Ltd | Professional & scientific | 2018 |
| 4A Mildenhall Road Limited | Households | 2013 |
| 4A Property Investment Ltd | Real estate | 2019 |
| 4A Solutions Ltd | Administrative & support | 2016 |
| 4A Sylvan Hill Management Limited | Households | 2022 |
| 4A'S (Properties) Ltd | Real estate | 2000 |
| 4A0S0 Arts Limited | Wholesale & retail | 2025 |
| 4AAAA Limited | Hospitality | 2025 |
| 4AB Limited | Transport & logistics | 2012 |
| 4ACCOUNTING Limited | Professional & scientific | 2010 |
| 4ACE Ventures Limited | Households | 2022 |
| 4ACES Health Club Limited | Education | 2024 |
| 4ACRE Films Limited | Information & communication | 2024 |
| 4AD Music Limited | Arts & recreation | 2000 |
| 4AD Songs Limited | Administrative & support | 2013 |
| 4ADMIN Ltd | Information & communication | 2024 |
| 4AG Robotics (UK) Limited | Administrative & support | 2025 |
| 4AGILE Solutions Ltd | Administrative & support | 2019 |
| 4AGM Ltd | Health & social care | 2021 |
| 4AI Limited | Information & communication | 2017 |
| 4AK Homes Ltd | Real estate | 2026 |
| 4ALL - Building Community in West Dulwich | Health & social care | 2010 |
| 4ALL LAB Limited | Manufacturing | 2023 |
| 4ALPHA Group Ltd | Real estate | 2019 |
| 4ALPHA Limited | Real estate | 2015 |
| 4ALPHASNUTRITION Ltd | Extraterritorial | 2025 |
| 4AM Design Limited | Professional & scientific | 2009 |
| 4AMIGOS Ltd | Manufacturing | 2011 |
| 4ANALYTICS Limited | Information & communication | 2024 |
| 4ANSWER Ltd | Professional & scientific | 2016 |
| 4AR Construction Ltd | Construction | 2022 |
| 4AR Limited | Hospitality | 2024 |
| 4ARCLEC Limited | Professional & scientific | 2013 |
| 4ARMED Labs Limited | Information & communication | 2024 |
| 4ARMED Limited | Information & communication | 2005 |
| 4AS Home Providers Ltd | Real estate | 2023 |
| 4ASARI Ltd | Wholesale & retail | 2020 |
| 4AUTH Limited | Information & communication | 2020 |
| 4AX Technologies Limited | Manufacturing | 2016 |
| 4AXIS Ltd | Wholesale & retail | 2023 |
| 4B Car Imports Ltd | Wholesale & retail | 2023 |
| 4B Digital Ltd | Information & communication | 2024 |
| 4B Novaire Group Ltd | Wholesale & retail | 2026 |
| 4B Project Services Limited | Professional & scientific | 2023 |
| 4B Projects LLP | | 2013 |
| 4B Renovations Limited | Construction | 2016 |
| 4BARRELLS Ltd | Hospitality | 2024 |
| 4BE4EVER Ltd | Financial services | 2022 |
| 4BELLU Ltd | Wholesale & retail | 2021 |
| 4BELLU Official Ltd | Wholesale & retail | 2021 |
| 4BETA Limited | Health & social care | 2016 |
| 4BG Freehold Limited | Households | 2022 |
| 4BG Limited | Households | 2024 |
| 4BILION Ltd | Wholesale & retail | 2025 |
| 4BIO Capital Limited | Professional & scientific | 2024 |
| 4BIO Company Secretarial Services Ltd | Administrative & support | 2022 |
| 4BIO Partners LLP | | 2018 |
| 4BIO Select I EBA SPV LP | | 2026 |
| 4BIO Select I RTB SPV LP | | 2026 |
| 4BIO Ventures II GP Limited | Financial services | 2018 |
| 4BIO Ventures II GP2 LLP | | 2018 |
| 4BIO Ventures II L.P. | | 2018 |
| 4BIO Ventures III GP LLP | | 2022 |
| 4BIO Ventures III LP | | 2022 |
| 4BIO Ventures Management Ltd | Professional & scientific | 2014 |
| 4BITS Ltd | Information & communication | 2025 |
| 4BJD Limited | Real estate | 2020 |
| 4BLONDONSTREET Limited | Wholesale & retail | 2025 |
| 4BOOKME Concierge Ltd | Administrative & support | 2025 |
| 4BOX Consulting Ltd | Professional & scientific | 2019 |
| 4BOX Logistic Ltd | Transport & logistics | 2026 |