| 1 Hour Recruitment Ltd | Other services | 2021 |
| 2L2F Limited | Information & communication | 2015 |
| 3E Security Limited | Manufacturing | 1992 |
| 40/40A Tennyson Street Limited | Extraterritorial | 2010 |
| 4D Cyber Security Limited | Information & communication | 2020 |
| 4M Fit Ltd | Health & social care | 2022 |
| 9 Pound 2 Limited | Administrative & support | 2013 |
| A & J Commercial Estates Ltd | Real estate | 2021 |
| AB Group Property Limited | Real estate | 2019 |
| ABC Chambers Solutions LLP | | 2013 |
| Abco Payroll Limited | Information & communication | 1977 |
| Abfabfit Club (Bishops Stortford) Limited | Arts & recreation | 2021 |
| About IT Limited | Information & communication | 2005 |
| Acga Consultancy Ltd | Information & communication | 2009 |
| Active Enterprise Solutions Ltd | Information & communication | 1999 |
| Aerospace Engineering Solutions Limited | Transport & logistics | 2001 |
| AG Project Management Limited | Construction | 2024 |
| AJA Electrical Services Ltd | Construction | 2020 |
| AJF Business Consultancy Services Ltd | Administrative & support | 2011 |
| Alan Lead (UK) Limited | Information & communication | 2005 |
| Albany Road Flats Limited | Administrative & support | 1999 |
| Albert James Consultancy Limited | Professional & scientific | 2022 |
| Alberts Cafe Ltd | Hospitality | 2018 |
| Albras (UK) Ltd | Administrative & support | 2011 |
| Alchemy BS Ltd | Professional & scientific | 2005 |
| Allaboutyou Limited | Administrative & support | 2017 |
| Allzor Ltd | Real estate | 2021 |
| AM Hockley Holdings Limited | Financial services | 2019 |
| Ambassador Chauffeur (Stansted) Limited | Transport & logistics | 2017 |
| Amhsvh Holdings Limited | Administrative & support | 2020 |
| Amplifico Group Ltd | Professional & scientific | 2024 |
| Anderson Property Management (2023) Ltd | Households | 2023 |
| Anderson Property Services Ltd | Construction | 2014 |
| Andrews & Hart Ltd | Construction | 1998 |
| Anglia Developments Limited | Construction | 2019 |
| Animal Rescue Limited | Other services | 1995 |
| Anson Game Limited | Professional & scientific | 2016 |
| Appian Energy Consulting Ltd | Professional & scientific | 2023 |
| Apple Grange Homes Limited | Construction | 2022 |
| Arctec Engineering Limited | Professional & scientific | 1997 |
| Argon Blue Developments Limited | Construction | 2019 |
| Armsec UK Limited | Wholesale & retail | 2017 |
| Armstrong Jordan Limited | Manufacturing | 2005 |
| Artiscope Ltd | Arts & recreation | 2024 |
| Aryana Lettings Ltd | Real estate | 2025 |
| ASA Practice Limited | Other services | 2020 |
| Ascend Property Solutions Ltd | Real estate | 2026 |
| Aseptium Limited | Professional & scientific | 2007 |
| Ashoka Catering Ltd | Hospitality | 2023 |
| Aspenchase Enterprises Limited | Construction | 1983 |
| Associated Beverage Services Limited | Hospitality | 1999 |
| Assurelink Company Ltd | Wholesale & retail | 2019 |
| Atain Associates Ltd | Professional & scientific | 2018 |
| Atkins & Candler ARB Ltd | Agriculture & fishing | 2023 |
| Atmospheres Services Limited | Extraterritorial | 2007 |
| Attraction PR Limited | Professional & scientific | 2006 |
| Attributions Limited | Professional & scientific | 2010 |
| Audio File In-Car Limited | Wholesale & retail | 2005 |
| Augeoli Ltd | Financial services | 2023 |
| Aurora Partitioning Limited | Manufacturing | 2014 |
| Auto History Signs Limited | Wholesale & retail | 2018 |
| Avax Development Limited | Real estate | 2021 |
| Babyballet East Herts and West Essex LLP | | 2023 |
| Bailey Bond Projects Ltd | Administrative & support | 2024 |
| Barakah Assets Ltd | Real estate | 2024 |
| Barber BUS Ltd | Construction | 2002 |
| Barbosa Hoffmann Ltd | Manufacturing | 2024 |
| Baris London Limited | Construction | 2018 |
| Barnes Interior Design Ltd | Professional & scientific | 2015 |
| Barrow Accountants Ltd | Professional & scientific | 2021 |
| Basecamp Lockers Limited | Real estate | 2025 |
| Bauer Renewables Limited | Construction | 1987 |
| Bauer Technologies Limited | Construction | 1989 |
| Bay Tree Ventures Limited | Extraterritorial | 2025 |
| Beanbox Ltd | Wholesale & retail | 2011 |
| Belleve Hair Limited | Other services | 2025 |
| Bendito Limited | Information & communication | 2018 |
| Bermuda Aviation Limited | | 1983 |
| Big HUG Creative Ltd | Wholesale & retail | 2009 |
| Bike Geeks Limited | Information & communication | 2020 |
| Biscp Ltd | Real estate | 2016 |
| Bishops HCW Ltd | Other services | 2015 |
| Bishops Kebab Ltd | Hospitality | 2025 |
| Bishops Stortford Ltd | Administrative & support | 2017 |
| Bishops Stortford Mencap | Health & social care | 2007 |
| Bishops Stortford Youth Project Limited | Health & social care | 2013 |
| Bkbs Ltd. | Information & communication | 2001 |
| Blue Square Solutions Limited | Construction | 2012 |
| Bluebridge Financial Planners Limited | Financial services | 2012 |
| Bolder Vision Limited | Information & communication | 2010 |
| Boutique Presentations Ltd | Administrative & support | 2010 |
| Braz Property Limited | Professional & scientific | 2010 |
| Briar HOUSE2024 Ltd | Real estate | 2024 |
| Broad Oak Consultants Limited | Information & communication | 1995 |
| Broad Oak Farm Sausage Co. Limited | Manufacturing | 1986 |
| BSC (Herts) Limited | Professional & scientific | 2017 |
| Bump Drops Ltd | Wholesale & retail | 2023 |
| Byford Commercial Finance Ltd. | Financial services | 2006 |
| C P International Chemicals Limited | Wholesale & retail | 1977 |
| C&Cl Office Support Limited | Administrative & support | 2018 |