| EC Derby Limited | Hospitality | 2026 |
| EC ELY Limited | Hospitality | 2025 |
| EC Essex Brew & Bites Limited | Hospitality | 2025 |
| EC Farnborough Limited | Hospitality | 2024 |
| EC Gerrards Cross Limited | Hospitality | 2024 |
| EC Glasgow Limited | Hospitality | 2026 |
| EC Leatherhead Limited | Hospitality | 2025 |
| EC Maidenhead Limited | Hospitality | 2024 |
| EC Mhwp Limited | Hospitality | 2025 |
| EC North East Ltd | Hospitality | 2023 |
| EC North West Ltd | Hospitality | 2023 |
| EC Oakham Limited | Hospitality | 2025 |
| EC Ruby Limited | Hospitality | 2024 |
| Elektek Circ Limited | Extraterritorial | 2017 |
| Elektek Limited | Extraterritorial | 2017 |
| ELIZA26 Consulting Limited | Professional & scientific | 2008 |
| EM & F Group Limited | Administrative & support | 1995 |
| Equestrian Events Limited | Arts & recreation | 2017 |
| ESIMS4TRAVEL Limited | Wholesale & retail | 2025 |
| Euro Hotel Bookings Limited | Other services | 2024 |
| Europulse Advisory Limited | Professional & scientific | 2025 |
| Everett Masson & Furby (Exeter) Limited | Administrative & support | 1990 |
| Everett Masson & Furby Limited | Financial services | 2011 |
| Evolution Coaching Limited | Arts & recreation | 1999 |
| Evora Investments Limited | Professional & scientific | 1983 |
| Fairview Design Limited | Wholesale & retail | 2009 |
| Fhmc Limited | Real estate | 2025 |
| Findtime Limited | Professional & scientific | 1985 |
| Fluidmo UK Ltd | Professional & scientific | 2023 |
| Forcedelta Limited | Professional & scientific | 1985 |
| Forestcove Limited | Real estate | 1997 |
| Franzi & Kofler Arte Ltd | Arts & recreation | 2015 |
| Friern Manor Dairy Farm Limited | Real estate | 1887 |
| FTF Worldwide Event Management Limited | Administrative & support | 1996 |
| FTF Worldwide Limited | Extraterritorial | 1996 |
| G & C Electrical Services Limited | Construction | 2003 |
| Galeana Realty Limited | Professional & scientific | 1983 |
| Gaulos Real Estate Limited | Real estate | 2025 |
| Gebhard and Goodwin Architects Limited | Professional & scientific | 2021 |
| Giant Jimmy Limited | Professional & scientific | 2016 |
| Glatis Limited | Professional & scientific | 2025 |
| Golah Investments Limited | Financial services | 2026 |
| Great Green Development Limited | Construction | 2022 |
| Greatfind Limited | Professional & scientific | 1986 |
| Green ERA Limited | Real estate | 2021 |
| Green ERA Property Limited | Real estate | 2023 |
| Green Lane Ideas Limited | Administrative & support | 2018 |
| Grosvenor Consulting Ltd | Administrative & support | 2010 |
| GS Kaya Group Limited | Financial services | 2025 |
| H. K. Estates Limited | Real estate | 1999 |
| Harris & Woolf LLP | | 2013 |
| Hazard Media Ltd | Information & communication | 2010 |
| Hertfordshire Chamber of Commerce | Other services | 1971 |
| Hertfordshire Family Mediation Service Limited | Arts & recreation | 1997 |
| Herts Valuations Limited | Administrative & support | 2003 |
| HES Fire Protection Limited | Professional & scientific | 1996 |
| Hillplatt Limited | Construction | 2014 |
| Hillsview Property Limited | Real estate | 2018 |
| Homebodies Limited | Administrative & support | 2011 |
| Hotaco Group Ltd | Financial services | 2025 |
| Hotaco Street Food Limited | Hospitality | 2025 |
| Houghton Kingsway Limited | Real estate | 2017 |
| I Love Pilates Ltd | Other services | 2015 |
| Iconic Chauffeurs Limited | Transport & logistics | 2017 |
| IGS Strategic Communications Limited | Professional & scientific | 2010 |
| Incinco Holdings Limited | Manufacturing | 2021 |
| Incinco Investments Limited | Financial services | 2011 |
| Incinco Limited | Manufacturing | 1998 |
| Intrepid Design Ltd | Professional & scientific | 2014 |
| Investments in India Limited | Professional & scientific | 2019 |
| Ipsych Limited | Health & social care | 2004 |
| Iraco Group Limited | Real estate | 2013 |
| Iraco Properties Limited | Real estate | 2020 |
| IRZ Construction Ltd | Construction | 2017 |
| IRZ Management Limited | Professional & scientific | 2025 |
| IT Takes People Limited | Professional & scientific | 2014 |
| Jaco Investments Limited | Real estate | 2024 |
| JC Steel Design Services Limited | Financial services | 2022 |
| Jenny Zarins Limited | Arts & recreation | 2004 |
| Jllc Limited | Real estate | 2018 |
| Jolo Media Ltd | Professional & scientific | 2019 |
| JT Stack Group Limited | Financial services | 2026 |
| Jvpn Consultancy Ltd | Professional & scientific | 2019 |
| JW & AC Property Limited | Financial services | 2025 |
| K&N EC Dorking Limited | Hospitality | 2025 |
| Karaman Limited | Real estate | 2002 |
| Kernel Business Transformations Limited | Professional & scientific | 2025 |
| Kerridge Consultants Limited | Administrative & support | 2006 |
| KG Construction (UK) Limited | Construction | 2006 |
| Laksh Holdings Limited | Financial services | 2025 |
| Lamb Locations and Events Ltd | Administrative & support | 2022 |
| Landinstant Limited | Households | 1981 |
| Landloan Limited | Real estate | 2003 |
| Lansdowne Management UK Ltd | Real estate | 2003 |
| Leighton Self Storage Limited | Transport & logistics | 2012 |
| Libra Motive Limited | Extraterritorial | 2015 |
| Life for Children Foundation | Health & social care | 2015 |
| Lime Hill Search Limited | Professional & scientific | 2000 |
| Linslade Limited | Professional & scientific | 1998 |
| London Krav Maga Ltd | Arts & recreation | 2013 |