| 3XT Limited | Professional & scientific | 2004 |
| 3XT Properties Ltd | Real estate | 2013 |
| 40 High Street Kimpton Limited | Households | 1998 |
| A.J.Willson & Sons Limited | Wholesale & retail | 1949 |
| Abbott & Cadger Limited | Administrative & support | 2025 |
| Abiglaze Limited | Manufacturing | 2008 |
| Add+Light Limited | Construction | 2014 |
| AJC 14 Sport Ltd | Education | 2023 |
| AK Logistics Solution Limited | Administrative & support | 2020 |
| Alemtek Ltd | Wholesale & retail | 2023 |
| Anglia Steelcraft Limited | Manufacturing | 2011 |
| APT Creations Limited | Arts & recreation | 2012 |
| Aqualeague Limited | Wholesale & retail | 1990 |
| Astronaut Actuarial Limited | Financial services | 2014 |
| Augustus Brown Architects Limited | Professional & scientific | 2013 |
| AVA Haru Limited | Wholesale & retail | 2020 |
| Aviv Photography Ltd | Professional & scientific | 2021 |
| Barnes & Bryant Fire and Security Limited | Administrative & support | 2023 |
| Blackmore Manor Management Company Limited | Households | 1993 |
| BLS Computer Solutions Limited | Information & communication | 2013 |
| Bosphorus (2023) Ltd | Hospitality | 2023 |
| Bowood Forge Developments Ltd | Real estate | 2022 |
| Burbury (Markyate) Limited | Real estate | 2016 |
| Cairns and Hall Construction LLP | | 2016 |
| Carousel Consulting Limited | Professional & scientific | 2023 |
| Central Health, Safety, Quality and Environmental Services Limited | Construction | 2023 |
| Ciequal Ltd | Administrative & support | 2019 |
| CK Modern Tiling Solutions Limited | Construction | 2019 |
| Colourcube Automotive Limited | Wholesale & retail | 2016 |
| Combat Medical Holdings Ltd | Financial services | 2017 |
| Cospring Ltd | Professional & scientific | 2022 |
| CSP Charles VI LP | | 2007 |
| CSP Strand V LP | | 2008 |
| Cubeline Commercial Limited | Real estate | 2025 |
| Curshaw Limited | Professional & scientific | 2019 |
| Dawe Ltd | Health & social care | 2022 |
| Delightful Food Group Limited | Financial services | 2023 |
| DMB Electrical Solutions Limited | Construction | 2014 |
| Dominic Myott Lighting Limited | Construction | 2012 |
| Dravon Limited | Financial services | 2011 |
| E3LIGHT Limited | Wholesale & retail | 2016 |
| Echohome Limited | | 1985 |
| Eco Sensing Limited | Professional & scientific | 2016 |
| ED Sherwood Limited | Information & communication | 2011 |
| Elite AC Ltd | Construction | 2021 |
| Endy Capital Limited | Real estate | 2009 |
| Engage Audio Limited | Arts & recreation | 2016 |
| Fabrifix Limited | Manufacturing | 2020 |
| Flow on the Go Productions Limited | Information & communication | 2017 |
| G E Tolley Public Sector Consultancy Limited | Public administration | 2022 |
| G.J.W.Titmuss Limited | Wholesale & retail | 1958 |
| Gatward Consultancy Limited | Professional & scientific | 2018 |
| Geeek Ltd | Information & communication | 2023 |
| Geoffrey Golding Tailors Limited | Manufacturing | 2021 |
| Gess Management Limited | Real estate | 2019 |
| GL Soft Ltd | Information & communication | 2022 |
| Graham COX Editing Limited | Information & communication | 2016 |
| GTO Project Management Services Limited | Professional & scientific | 2002 |
| Hamish Ventilation Limited | Manufacturing | 2023 |
| Hatfield Netball Club Limited | Arts & recreation | 2015 |
| Hemingford Investments Limited | Households | 2016 |
| Herts Window Repair Ltd | Construction | 2023 |
| HH Property Services Ltd | Real estate | 2017 |
| HWS Plastering Ltd | Construction | 2025 |
| Incred Logistics Limited | Administrative & support | 2017 |
| JBK Estates (Southern) Ltd | Construction | 2026 |
| JBK Estates Ltd | Construction | 2018 |
| Jkgw Golf Services Limited | Wholesale & retail | 2021 |
| Jshill Ltd | Administrative & support | 2024 |
| K Neville Property Maintenance Limited | Construction | 2021 |
| K6 Futures Limited | Professional & scientific | 2025 |
| Kactus Mexico Ltd | Hospitality | 2025 |
| Koru Solutions Limited | Information & communication | 1995 |
| LJM Joinery Contracts Ltd | Construction | 2021 |
| Mantel Services Limited | Professional & scientific | 2009 |
| Marlin Design Limited | Professional & scientific | 2010 |
| Master Moves Estates Ltd | Real estate | 2009 |
| Maywins Fire Ltd | Construction | 2021 |
| Maywins Ltd | Construction | 2017 |
| Meads Lane Conservation Ltd | Households | 2023 |
| Melody Junior Limited | Information & communication | 2015 |
| Mid-Herts Golf Club Limited | Hospitality | 2023 |
| Myteach Limited | Education | 2017 |
| NC Locations Ltd | Arts & recreation | 2022 |
| NO Place Like Holm Ltd | Wholesale & retail | 2013 |
| Nonnos Pizza Wheathampstead Ltd | Hospitality | 2024 |
| NSL Telecoms Ltd | Information & communication | 1999 |
| Octa Audio Limited | Information & communication | 2022 |
| Octave Audio Limited | Arts & recreation | 2011 |
| Orange Home Rentals Ltd | Real estate | 2018 |
| Owen Stewart Hair Limited | Other services | 2002 |
| Pathwai Solutions Ltd | Information & communication | 2021 |
| Penn Clark Interiors Ltd | Construction | 2011 |
| Petbond (Uk-Hq) Limited | | 2022 |
| Pointvoucher Ltd | Information & communication | 2017 |
| Pretty Square Picture Company Limited | Wholesale & retail | 2018 |
| Professor PAT Pending Limited | Transport & logistics | 2021 |
| Progressive Training Limited | Administrative & support | 1988 |
| PSY Lens Ltd | Professional & scientific | 2024 |
| Qualis Shading Limited | Wholesale & retail | 2017 |