| Connaght Limited | Construction | 2017 |
| Conscious Threads Ltd | Manufacturing | 1990 |
| Cooney Services Ltd | Energy | 2007 |
| Coorg Properties Ltd | Real estate | 2020 |
| Corporate Life Solutions Ltd | Professional & scientific | 2023 |
| Country Heating Ltd | Construction | 2025 |
| Cov&Son Building Contractors Ltd | Other services | 2021 |
| Coveringsolution Limited | Construction | 2025 |
| CPR Instalcom Ltd | Professional & scientific | 2011 |
| Crescent Assets Limited | Real estate | 2026 |
| Crownville Properties Limited | Real estate | 1998 |
| CSG Hill Farm Lane and Others Community Interest Company | Households | 2021 |
| Cunsey House (Windermere) Management Company Ltd | Real estate | 2015 |
| Damion Mower Photography Limited | Professional & scientific | 2016 |
| Dark Blue Management Limited | Real estate | 2005 |
| Dave King Media Consultancy Associates Limited | Professional & scientific | 2018 |
| David Hollander Associates Limited | Professional & scientific | 2018 |
| Dcwallace Ltd | Construction | 2019 |
| Dentech 3M Limited | Health & social care | 2023 |
| Design Seed Developments Limited | Construction | 2025 |
| Detail Investments Ltd | Real estate | 2022 |
| Dhiva Designs Limited | Professional & scientific | 2022 |
| Digital Goose Industries Limited | Other services | 2025 |
| Digital Orchard Group Ltd | Agriculture & fishing | 2011 |
| Disa Care Ltd | Professional & scientific | 2016 |
| DIT IS the Way Ltd | Information & communication | 2021 |
| DIX Neuf Limited | Real estate | 2016 |
| DM Scenic Services Ltd | Arts & recreation | 2021 |
| Doctors United Ltd | Health & social care | 2015 |
| Dtln IT Services Ltd | Information & communication | 2016 |
| Dunelmo Properties Limited | Real estate | 2017 |
| Dutch Gable House (Manor Road) Limited | Households | 2021 |
| Eastwood Medical Ltd | Health & social care | 2014 |
| Ecom Global Network Limited | Information & communication | 2013 |
| Eden Smith Consultants Limited | Professional & scientific | 2016 |
| EKA Holdings Ltd | Wholesale & retail | 2022 |
| Elasticera Ltd | Information & communication | 2012 |
| Elecwiz Limited | Energy | 2006 |
| ELEV8FITNESS Limited | Arts & recreation | 2018 |
| Elevenpluspreps Limited | Education | 2025 |
| Elton Recruitment Ltd | Administrative & support | 2017 |
| Emerald Wave Ltd | Real estate | 2022 |
| Empire Commercial Finance (London) Ltd | Financial services | 2018 |
| Equator Music Limited | Other services | 1971 |
| Equator Music Management Limited | Administrative & support | 2022 |
| Equine Secure PAY Ltd | Financial services | 2024 |
| ESP Education Consultant Ltd | Education | 2022 |
| Etail-Usa Limited | Transport & logistics | 2017 |
| Event Doctors Ltd | Professional & scientific | 2006 |
| Everoak Flooring Ltd | Construction | 2025 |
| Expedite Growth Services Ltd | Information & communication | 2020 |
| Felloladore Consulting Limited | Professional & scientific | 2022 |
| Fern-Side Advisory Ltd | Professional & scientific | 2024 |
| Finlay Harris Developments Ltd | Construction | 2023 |
| Fleetwood Studios Limited | Construction | 2002 |
| Fnord Productions Ltd | Information & communication | 2023 |
| Focus Ultrasound Limited | Health & social care | 2023 |
| FOR Evergreen Home Improvements UK Ltd | Construction | 2026 |
| Freedom Online Consultancy Ltd | Information & communication | 2022 |
| Future Fire Ltd | Arts & recreation | 2000 |
| Future Green Investments U.K. Limited | Water & waste | 2023 |
| G S Biring Limited | Health & social care | 2014 |
| Galanthus Consulting Limited | Professional & scientific | 2013 |
| Garvin Finance Ltd | Professional & scientific | 2011 |
| GB Scenic Services Ltd | Arts & recreation | 2021 |
| GE Healthcare (AB) | Professional & scientific | 1997 |
| GE Healthcare Limited | Manufacturing | 1971 |
| GE Healthcare Pension Trustee Limited | Professional & scientific | 2018 |
| GE Healthcare Pharmaceutical Diagnostics Holding Limited | Financial services | 2025 |
| GE Healthcare Structured Projects (UK) Limited | Wholesale & retail | 2000 |
| GE Healthcare Technologies Holding Limited | Professional & scientific | 2002 |
| GE Healthcare UK Limited | Financial services | 1997 |
| GE Medical Systems Limited | Wholesale & retail | 1930 |
| Generate London Projects Ltd | Construction | 2019 |
| Gigteam Ltd | Professional & scientific | 2023 |
| Gisella Salerno Limited | Health & social care | 2013 |
| GK3 Ltd | Professional & scientific | 2022 |
| Global Interim Solutions Limited | Professional & scientific | 2013 |
| Global Organics Ltd | Wholesale & retail | 2017 |
| Global Payment Solutions Ltd | Professional & scientific | 2025 |
| Glowkart Limited | Wholesale & retail | 2025 |
| Glynbury Management Limited | Administrative & support | 1996 |
| Go Beyond Finance Ltd | Financial services | 2022 |
| Gold Hill Travel Ltd | Administrative & support | 2025 |
| Golf Charlie Whiskey Limited | Transport & logistics | 2001 |
| Good Endeavours Ltd | Professional & scientific | 2019 |
| Grayson Patrick Ltd | Professional & scientific | 2020 |
| Grazing Grub Ltd | Hospitality | 2024 |
| Greyhound Tyre Company Limited | Real estate | 1964 |
| GTL Mathanda Services Ltd | Health & social care | 2016 |
| Guru JI 7 Ltd | Other services | 2016 |
| H Design Group Limited | Wholesale & retail | 2024 |
| H Parfitt & Sons Limited | Other services | 1944 |
| Habitation London Limited | Real estate | 2019 |
| Hale Gardens Limited | Real estate | 2025 |
| Hamiltons Car Storage Limited | Transport & logistics | 2006 |
| Hana Real Estate Limited | Real estate | 2025 |
| Handy Andy Jobs Ltd | Construction | 2019 |
| Harben Ventures Ltd | Real estate | 2025 |
| Harewood Residential Ltd | Real estate | 2025 |