| 10WR Freehold Company Limited | Real estate | 2025 |
| 18-20 Cambridge Road ELY Management Limited | Households | 2002 |
| 1ST Class Smart&Body Vehicle Repairs Limited | Manufacturing | 2018 |
| 1ST Self-Storage (Kings Lynn) Limited | Other services | 2022 |
| 2 Step Properties Ltd | Real estate | 2021 |
| 23 Robbs Walk Management Company Limited | Extraterritorial | 2010 |
| 29A Flat Management Limited | Households | 2023 |
| 30 Cambridge Road Limited | Construction | 2014 |
| 32 One Homes Cheveley Limited | Construction | 2021 |
| 33 Mill END Road Limited | Households | 2019 |
| 360 Solutions (Cambridge) Ltd | Professional & scientific | 2009 |
| 360-CARPENTRY Limited | Manufacturing | 2023 |
| 365 Care Homes Limited | Wholesale & retail | 2014 |
| 365 Homes Limited | Real estate | 2018 |
| 365RESIDENTIAL Ltd | Real estate | 2019 |
| 4 Paws at NO.6 Ltd | Agriculture & fishing | 2025 |
| 45 Harold Road (London) RTM Company Limited | Real estate | 2021 |
| 4D Care Limited | Health & social care | 2002 |
| 4D Dance CIC | Education | 2024 |
| 4K Detailing and Valeting Services Ltd | Administrative & support | 2020 |
| 500 White Hart Lane Management Company Limited | Real estate | 2018 |
| 64-71 Windsor Gardens Limited | Households | 2004 |
| 73 Paddock Street Soham Management Company Limited | Households | 2019 |
| 76 Projects Limited | Manufacturing | 2016 |
| 77A - 81C Cambridge Road ELY Management Limited | Professional & scientific | 2002 |
| 8 High Street Management Limited | Real estate | 2005 |
| 93 Tenison Road Freehold Company Limited | Households | 2012 |
| 942 Fitness Ltd | Arts & recreation | 2025 |
| A & a Thai Restaurants Ltd | Hospitality | 2015 |
| A & B Block Paving Specialists Limited | Administrative & support | 2017 |
| A & B Contractors Ltd | Construction | 2020 |
| A & B Smith Limited | Wholesale & retail | 2021 |
| A & C Whelan Ltd | Professional & scientific | 2020 |
| A & L Carpentry and Building Limited | Construction | 2015 |
| A & R Commercial Laundry Service Limited | Administrative & support | 2012 |
| A Brew Brickwork Limited | Construction | 2019 |
| A E H Associates Ltd | Professional & scientific | 2011 |
| A Ford Limited | Construction | 2013 |
| A H Entertainment Engineering Limited | Arts & recreation | 2013 |
| A I Brickwork Ltd | Construction | 2014 |
| A J LEE Developments Limited | Construction | 2013 |
| A J M Focused Consulting Limited | Professional & scientific | 2011 |
| A Jenkins Ltd | Construction | 2020 |
| A L Human Resources Ltd | Administrative & support | 2018 |
| A L LEE & Sons (Marketing) Limited | Other services | 2010 |
| A L LEE & Sons (Produce) Ltd | Agriculture & fishing | 2013 |
| A L LEE Farming Company | Agriculture & fishing | 2013 |
| A L P Povey Limited | Financial services | 2024 |
| A Life in Purgatory Ltd | Wholesale & retail | 2025 |
| A Little Something ELY Ltd | Wholesale & retail | 2025 |
| A S a Landscapes Limited | Administrative & support | 2017 |
| A Stancombe Fencing Contractors Limited | Administrative & support | 2011 |
| A Tasca (Soham) Ltd | Wholesale & retail | 2015 |
| A Taste - of Jamrock Ltd | Hospitality | 2024 |
| A to SZE Consultancy LLP | | 2024 |
| A Wise Choice Landscaping Ltd | Administrative & support | 2025 |
| A&A Property Developers Ltd | Construction | 2020 |
| A&J Coaches Ltd | Transport & logistics | 2023 |
| A&M ELY Limited | Real estate | 2018 |
| A. & N. Lewis Limited | Construction | 1987 |
| A. Barwell & Sons (UK) Limited | Transport & logistics | 2002 |
| A. E. & N. Ashton & Company Limited | Manufacturing | 1955 |
| A.E. & N. Ashton Group Limited | Real estate | 1977 |
| A.F.Buck Limited | Real estate | 1960 |
| A.G.I. Mobile Communications Limited | Information & communication | 2006 |
| A.G.Wright & Son,(Farms)Limited | Agriculture & fishing | 1950 |
| A.H.P. Brickworks Limited | Construction | 2017 |
| A.L. LEE Farms (ELY) Limited | Agriculture & fishing | 1981 |
| A.L.S. Autos Holdings Limited | Financial services | 2021 |
| A.O Construction Ltd | Construction | 2018 |
| A.T. Consultants & Builders Limited | Construction | 2014 |
| A1 FUN Club Limited | Education | 2008 |
| A10 Chip Van Ltd | Wholesale & retail | 2016 |
| A10 Taxi Cabs Limited | Transport & logistics | 2019 |
| A2B Taxi Cabs Ltd | Transport & logistics | 2012 |
| A2B Taxi Contractors Limited | Transport & logistics | 2017 |
| AAA Motorcycle Training Ltd | Education | 2019 |
| Aaron Cleaning Services Ltd | Extraterritorial | 2025 |
| AAT (Asset Management) Limited | Real estate | 2018 |
| AB Accountancy Ltd | Professional & scientific | 2020 |
| Abasileuton Ltd | Information & communication | 2025 |
| ABC Saddlery Ltd | Wholesale & retail | 1998 |
| Abcd Cleaning Ltd | Administrative & support | 2019 |
| Abela Solutions Ltd | Construction | 2019 |
| Able Construction (Cambridge) Ltd | Construction | 2013 |
| Abraham Property Management Limited | Real estate | 2014 |
| Abseil Glazing Limited | Construction | 2019 |
| Absolute PH Limited | Construction | 2017 |
| AC Timber Packs Ltd | Financial services | 2024 |
| AC Timber Solutions Limited | Wholesale & retail | 2009 |
| Academy of Advanced Aesthetics Limited | Education | 2017 |
| Academy of Advanced Beauty Limited | Education | 2017 |
| Academy of Digital Dentistry Limited | Health & social care | 2014 |
| Accepted Designs Limited | Manufacturing | 2006 |
| Access Interiors Limited | Construction | 1994 |
| Access to Words Limited | Professional & scientific | 2024 |
| Accord Technical Ltd | Information & communication | 2014 |
| Accounting Services (ELY) Ltd | Professional & scientific | 2015 |
| Accounting Streams Limited | Education | 2023 |
| Ace Connections (East) Holdings Ltd | Financial services | 2025 |