| 1609 Creations Ltd | Professional & scientific | 2024 |
| 61 Myddelton Square Limited | Households | 1996 |
| A Francis Ltd | Other services | 2003 |
| Above ALL Roofing Ltd | Construction | 2026 |
| Adore Holidays Limited | Administrative & support | 2011 |
| Advanced Facility Management Ltd | Administrative & support | 2010 |
| AFM Legal Services Limited | Professional & scientific | 2013 |
| ALL Avenues Heating & Plumbing Services Limited | Construction | 2012 |
| Alpha Management Holdings Ltd | Financial services | 2026 |
| Andorra Travel Service Limited | Administrative & support | 2014 |
| Apex Timber Erectors Limited | Construction | 2020 |
| Athletic Performance Plus Limited | Other services | 2009 |
| Avaunt Media Limited | Information & communication | 2017 |
| B.H.B Fleetcare Limited | Wholesale & retail | 2024 |
| B.M.E Construction Limited | Construction | 2024 |
| Baker-Sullivan Consulting Ltd | Professional & scientific | 2021 |
| Baker-Wood Consulting Ltd | Professional & scientific | 2015 |
| Barretts Courier Services Limited | Transport & logistics | 2016 |
| Beau Mode Limited | Wholesale & retail | 2017 |
| BEN COX Ltd | Agriculture & fishing | 2021 |
| Benham Engineering Limited | Professional & scientific | 2010 |
| Benka Holmes Ltd | Hospitality | 2013 |
| Bespoke Carpentry & Construction Ltd | Construction | 2018 |
| BJL Rigging Limited | Construction | 2009 |
| Bmrawlings Holdings Ltd | Financial services | 2022 |
| Boars TYE Residential Home Ltd | Health & social care | 2012 |
| Bonnies Oak Property Limited | Real estate | 2014 |
| Boswell Group Holdings Ltd | Financial services | 2023 |
| Bouleh Limited | Agriculture & fishing | 2017 |
| Brett Kirby Ltd | Other services | 2026 |
| Broadoak Bathrooms Ltd | Construction | 2017 |
| Brooks and Landscapes Ltd | Administrative & support | 2019 |
| Callabella Limited | Professional & scientific | 2013 |
| Cambsbathrooms Ltd | Construction | 2025 |
| Campbell (UK) Limited | Construction | 1999 |
| Capital Poster Services Limited | Manufacturing | 1999 |
| Cara Gold Limited | Professional & scientific | 1998 |
| Casdrove Limited | Extraterritorial | 1977 |
| Champaneri Ltd | Other services | 2015 |
| Chappell Decorating Limited | Construction | 2006 |
| Chapters Therapy Ltd | Other services | 2019 |
| Chic PUP Co. Ltd | Wholesale & retail | 2021 |
| Chris Declerk Ltd | Administrative & support | 2009 |
| Christopher COX Ltd | Agriculture & fishing | 2017 |
| Chukl Holdings Ltd | Financial services | 2024 |
| CJA IT Services Ltd | Information & communication | 2013 |
| Confluence Limited | Information & communication | 2008 |
| Consilium Hemmings (UK) Ltd | Professional & scientific | 2019 |
| Crescentius Limited | Professional & scientific | 2026 |
| D Taylor Services Ltd | Construction | 2015 |
| Daotec Ltd | Information & communication | 2001 |
| Daotrade Ltd | Extraterritorial | 2014 |
| Debbie Provost-Black Ltd | Other services | 2017 |
| Dessert Ballers Limited | Manufacturing | 2018 |
| Driven Enterprise Group Limited | Transport & logistics | 2021 |
| DTB Logistics Ltd | Administrative & support | 2017 |
| E Cuthbertson Consulting Limited | Professional & scientific | 2016 |
| Enviroblast UK Ltd | Manufacturing | 2015 |
| ESB Investments Limited | Professional & scientific | 2003 |
| Evans Rescue Limited | Wholesale & retail | 2016 |
| Exponential Solutions Limited | Professional & scientific | 2013 |
| Fairclough Bookkeeping Services Limited | Professional & scientific | 2009 |
| Fawkes Properties Limited | Real estate | 1996 |
| Fetch Agency Limited | Information & communication | 2014 |
| Fetch Creative Limited | Professional & scientific | 2008 |
| Ffcad Limited | Professional & scientific | 2012 |
| Financial Services Partnership Limited | Professional & scientific | 2009 |
| Flame Defence Limited | Administrative & support | 2023 |
| Focus Media Communications Ltd | Professional & scientific | 2004 |
| Fortrose Limited | Professional & scientific | 1998 |
| FOX Corner Management Limited | Households | 1969 |
| Frances Games Limited | Arts & recreation | 2020 |
| Frazel Trustees Limited | Administrative & support | 2010 |
| Freedom Care (Herts) Limited | Other services | 2018 |
| Fresh Exteriors Ltd | Administrative & support | 2026 |
| Fullpoint Holdings Limited | Manufacturing | 1991 |
| Fullpoint Limited | Manufacturing | 1994 |
| Fullpoint Press Limited | Administrative & support | 1997 |
| G & L Wardley Ltd | Construction | 2026 |
| GLP Cables Limited | Construction | 2005 |
| Goode Padel Ltd | Financial services | 2026 |
| Graham Cocksey Associates Limited | Professional & scientific | 1998 |
| Greenhill Sales and Lettings Limited | Real estate | 2021 |
| Gridstave Limited | Professional & scientific | 1995 |
| Guruve Limited | Wholesale & retail | 2000 |
| H&H Smart Group Ltd | Wholesale & retail | 2021 |
| Hailey Garage Limited | Manufacturing | 2007 |
| Harter Electrical Ltd | Construction | 2020 |
| Harvey's Heating Ltd | Construction | 2016 |
| Hashtagpersonal Limited | Wholesale & retail | 2022 |
| Hazfran Limited | Professional & scientific | 2005 |
| Hedge Fund Publishing Limited | Information & communication | 2004 |
| Helroy Properties Limited | Real estate | 1984 |
| Henrietta Gardens Residents Management Company Ltd | Real estate | 2012 |
| Hertford Dog Walking Ltd | Other services | 2014 |
| Hertfordshire Heating Services Limited | Construction | 2012 |
| Herts & Essex Irrigation Ltd | Construction | 2021 |
| Herts Heating Limited | Manufacturing | 2001 |
| Hintmere Limited | Other services | 1994 |
| Hive Home Solutions Ltd | Real estate | 2025 |