| Fusion (Redhill) Management Company Limited | Households | 2006 |
| Garratt Green NO.1 Residents Company Limited | Households | 1993 |
| Gascon Capital Limited | Financial services | 2023 |
| Gcra (Godwin Court Residents Association) RTM Company Limited | Households | 2012 |
| Genoinsight Limited | Professional & scientific | 2022 |
| GHC Electrical Services Ltd | Construction | 2025 |
| Ghph Holdings Limited | Financial services | 2021 |
| Giviro Limited | Financial services | 2016 |
| GJE Construction Limited | Construction | 2015 |
| Glamouraa Limited | Wholesale & retail | 2025 |
| Go 4 Granite (London) Ltd | Other services | 2018 |
| Godstone Road Coffee Shop Limited | Hospitality | 2024 |
| Granite Revolutions Limited | Wholesale & retail | 2014 |
| Gravesham Golf Academy Ltd | Arts & recreation | 2016 |
| Green Street Holdings Limited | Financial services | 2021 |
| Green Street Services Limited | Administrative & support | 2021 |
| Greensands Place Ltd | Households | 2015 |
| Greenwood Property Management Limited | Households | 1986 |
| Griffin Books Limited | Information & communication | 2003 |
| Grip + Glow Limited | Wholesale & retail | 2020 |
| Gross Electric Ltd | Wholesale & retail | 2026 |
| H J PUB Co Ltd | Hospitality | 2025 |
| Haier Hvac Solutions UK Ltd | Wholesale & retail | 2014 |
| Haque Investments Group Limited | Professional & scientific | 2017 |
| Harlow Court Limited | Households | 2013 |
| Hattington Capital LLP | | 2013 |
| Hattington Investment Partners LLP | | 2014 |
| Hattington Property Management Citywest Limited | Real estate | 2013 |
| Hattington Property Management Cunningham House Limited | Real estate | 2014 |
| Hattington Property Management Limited | Real estate | 2013 |
| Hayling Down Management Company Limited | Households | 1981 |
| HCM Global Ltd | Education | 2021 |
| HCN45 Ltd | Households | 2023 |
| Hepburn Group Construction Ltd | Construction | 2026 |
| Hewitt Fire & Security Group Ltd | Construction | 2026 |
| High Finance (UK) Limited | Administrative & support | 2002 |
| High Finance Limited | Administrative & support | 2006 |
| Highbrow Logistics Ltd | Transport & logistics | 2019 |
| Highview Residents Co. (Shooters Hill) Limited | Households | 1966 |
| Hillmere Management Limited | Households | 1968 |
| Hillside Park Freehold Limited | Real estate | 2005 |
| Hinkell Development Limited | Manufacturing | 2012 |
| Hollywoods Management Limited | Households | 1969 |
| Hopewell 24 Care Limited | Administrative & support | 2022 |
| Host Personal & Corporate Financial Guidance Ltd | Financial services | 2008 |
| House of Evolution Shopper Ltd | Wholesale & retail | 2024 |
| Hubb Engineering Services Ltd | Construction | 2020 |
| Hurstcom Ltd | Professional & scientific | 2013 |
| Imperial Scholars Ltd | Education | 2025 |
| Impivaara Ltd | Professional & scientific | 2025 |
| IN Flight Entertainment Touring Limited | Arts & recreation | 2012 |
| IN Flight Publishing Limited | Information & communication | 2023 |
| Indiego Distribution Ltd | Wholesale & retail | 2009 |
| Infin Strategy Partners Ltd | Professional & scientific | 2025 |
| Infocap Technologies Limited | Administrative & support | 1997 |
| Infrastructure and Finance Ltd | Real estate | 2021 |
| Infurno Arts Ltd | Arts & recreation | 2026 |
| Inglewood Carpentry Ltd | Manufacturing | 2025 |
| Intelligent Creative Digital Ltd | Information & communication | 2016 |
| Irama Community CIC | Education | 2023 |
| Ivan Stubberfield Autos Limited | Wholesale & retail | 2024 |
| IVY Real Estate Limited | Real estate | 2020 |
| Izoduuwa Ltd | Wholesale & retail | 2026 |
| J & F Property Services Limited | Construction | 2018 |
| J & T Roofing Ltd | Construction | 2024 |
| J&M Family Ltd | Wholesale & retail | 2025 |
| J3 Management Ltd | Real estate | 2026 |
| James Parrott Consulting Limited | Information & communication | 2024 |
| James W Marshall Limited | Professional & scientific | 2015 |
| JC Gallery Limited | Wholesale & retail | 2020 |
| Jean Landre Arts and Photography Ltd | Professional & scientific | 2026 |
| JET Wardrobe & Co Ltd | Wholesale & retail | 2026 |
| JH Nails & Beauty Ltd | Other services | 2025 |
| JK Motorworks Limited | Wholesale & retail | 2026 |
| JLP Events Limited | Construction | 2019 |
| JMJ Family Ltd | Professional & scientific | 2021 |
| Jubilee Court (Sutton) Management Company Limited | Households | 2003 |
| Jump Runner Ltd | Professional & scientific | 2020 |
| JWA Management Limited | Professional & scientific | 2026 |
| Kadore Ltd | Construction | 2024 |
| Katie Nunn Osteopath Limited | Health & social care | 2008 |
| Kendal Court Residents Association Limited | Households | 1975 |
| Kingdom Harvesters Ministries UK Ltd | Other services | 2013 |
| Kingscroft Motor Company Limited | Financial services | 1984 |
| Kingsmere Place NO.1 Residents Company Limited | Households | 1991 |
| Kingsmere Place NO.2 Residents Company Limited | Households | 1991 |
| Kits & Crumbs Ltd | Hospitality | 2026 |
| KN Facades Ltd | Construction | 2021 |
| Knickerbox II Limited | Professional & scientific | 1992 |
| Kobra Building Ltd | Construction | 2020 |
| KRT Group Ltd | Construction | 2025 |
| LA Customs Limited | Wholesale & retail | 2012 |
| Laak Couriers Limited | Transport & logistics | 2018 |
| LANEND7 Ltd | Administrative & support | 2018 |
| Last Contracting FM Limited | Administrative & support | 2022 |
| Last Contracting Limited | Construction | 2011 |
| LAT Engineering Services Limited | Construction | 2025 |
| Lavenders (Streatham Vale) NO. 2 Residents Company Limited(The) | Households | 1986 |
| Lawrence Business Development Limited | Administrative & support | 2009 |
| Lead Electrical Services Ltd | Construction | 2007 |