| 1 West Street Godmanchester Management Co Limited | Households | 2004 |
| 1-5 Isabelle House Management Company Limited | Real estate | 2008 |
| 1/12 Philson Management Company Limited | Real estate | 1994 |
| 11A Limited | Professional & scientific | 2026 |
| 130 Spa Limited | Other services | 2013 |
| 156 High Street Huntingdon Management Co. Limited(The) | Households | 1985 |
| 1909 Fabrications Ltd | Manufacturing | 2026 |
| 21-39 (ODD) Addenbrooke's Road Freehold Limited | Households | 2017 |
| 2222 Holdings Ltd | Financial services | 2024 |
| 224 Recruitment Ltd | Transport & logistics | 2025 |
| 23 Visuals Limited | Other services | 2013 |
| 24 Carrot Cloud Limited | Information & communication | 2022 |
| 247UNICARE Providers Services Limited | Health & social care | 2025 |
| 24HOURCLUB Limited | Wholesale & retail | 2014 |
| 28 Care Services Ltd | Administrative & support | 2023 |
| 28B Limited | Information & communication | 2010 |
| 28C Limited | Professional & scientific | 2025 |
| 3 Girls Boutique Ltd | Wholesale & retail | 2025 |
| 316 Building Services Limited | Construction | 2013 |
| 345 Training Ltd | Construction | 2025 |
| 360 Event Solutions Limited | Administrative & support | 2025 |
| 3DEC Protocol & Logistics Ltd | Transport & logistics | 2026 |
| 3PM Construction Ltd | Construction | 2020 |
| 3Q Sports Limited | Extraterritorial | 2023 |
| 3Q Sports Teamwear Ltd | Wholesale & retail | 2012 |
| 3Q Workwear Limited | Extraterritorial | 2023 |
| 42 Farming LLP | | 2018 |
| 4D Transport Services Ltd | Transport & logistics | 2017 |
| 4E Trading UK Ltd | Wholesale & retail | 2026 |
| 57 Exning Road Property Management Company Ltd | Households | 2016 |
| 6 Days Only Limited | Professional & scientific | 2011 |
| 86B Beauty Bar Ltd | Other services | 2026 |
| 88BLACKSHEEP Limited | Real estate | 2015 |
| 9 Darter Ltd | Other services | 2024 |
| 94 Mill Road Limited | Households | 2019 |
| A & S Fenner Ltd | Wholesale & retail | 2015 |
| A & T Goody Limited | Professional & scientific | 2020 |
| A * Star Education Limited | Information & communication | 2004 |
| A Ashurst (Transport) Limited | Transport & logistics | 2000 |
| A Atelier Ltd | Transport & logistics | 2026 |
| A B C D E F G H U M a N Ltd | Professional & scientific | 2019 |
| A Cameron Distribution Ltd | Wholesale & retail | 2023 |
| A F Medical Consultants Limited | Health & social care | 2013 |
| A J & Co. Consulting Ltd | Professional & scientific | 2025 |
| A J Cobb Holdings Ltd | Financial services | 2026 |
| A J Westbrook Engineering Ltd | Professional & scientific | 2026 |
| A K Lane & SON Ltd | Construction | 2013 |
| A Kausar Ltd | Health & social care | 2008 |
| A M G Trenowath Marquee Company Limited | Administrative & support | 1992 |
| A M G Trenowath Temporary Structures Limited | Real estate | 2005 |
| A Pinch of Salt Limited | Professional & scientific | 2000 |
| A R Singh Limited | Wholesale & retail | 2019 |
| A Riley Comms Limited | Information & communication | 2017 |
| A Spicer (Contractors) Ltd | Construction | 2005 |
| A T Sack Fillers Limited | Manufacturing | 2005 |
| A Tawney Engineering Services Ltd | Construction | 2014 |
| A to B Home Investments Ltd | Real estate | 2023 |
| A V 8 Technical Limited | Administrative & support | 2008 |
| A Welland Electrical Limited | Construction | 2017 |
| A&C Property Ltd | Real estate | 2018 |
| A&D Property Estates Ltd | Real estate | 2025 |
| A&E Cornall Ltd | Construction | 2024 |
| A&G Driver Solutions Limited | Transport & logistics | 2020 |
| A&L Signature Stays Ltd | Hospitality | 2026 |
| A&M Potters C.I.C. | Manufacturing | 2020 |
| A&M Property Maintenance Limited | Construction | 2023 |
| A&M Windows Glass & Glazing Limited | Construction | 2026 |
| A. Glory Ltd | Health & social care | 2018 |
| A.B.G. Electrical & Mechanical Services Ltd. | Construction | 2018 |
| A.C Trans Ltd | Transport & logistics | 2024 |
| A.C. Saffron Walden Flowers Ltd | Wholesale & retail | 2019 |
| A.K. Wiltshire Builders and Builders Supplies Limited | Wholesale & retail | 1991 |
| A.Sawyer Composites Ltd | Professional & scientific | 2025 |
| A.W.O. Recycling Limited | Water & waste | 2012 |
| A5 SIA Security Ltd | Administrative & support | 2025 |
| AAA Inflatables Limited | Wholesale & retail | 2007 |
| AAC Accountants Ltd | Professional & scientific | 1997 |
| Aanettosvideos Ltd | Information & communication | 2023 |
| AAR Trans Ltd | Transport & logistics | 2018 |
| AB Business Coaching Limited | Professional & scientific | 2004 |
| AB Wright Property Ltd | Real estate | 2026 |
| Abacus Innovations Ltd | Real estate | 2025 |
| Abacus Property Management and Investments Limited | Households | 2021 |
| Abate Pest Management Ltd | Administrative & support | 2024 |
| Abbatis LLP | | 2023 |
| Abbcd Limited | Information & communication | 2023 |
| Abbey Developments Cambridgeshire Limited | Construction | 2019 |
| Abbey Lane Company Ltd | Hospitality | 2018 |
| Abbey Properties Cambridgeshire Limited | Construction | 1995 |
| Abbey Real Estate Cambridgeshire Limited | Construction | 2019 |
| Abbots Events Catering Ltd | Hospitality | 2015 |
| Abbots Ripton Farming Company Limited | Agriculture & fishing | 1959 |
| Abbotsley Developments Ltd | Construction | 2025 |
| Abbott Venture Ltd | Information & communication | 2026 |
| Abbs Inspek Ltd | Professional & scientific | 2024 |
| ABL Management Ltd | Construction | 2023 |
| Able Denton Evans LLP | | 2011 |
| Ablewood Ltd | Construction | 2004 |
| Absolute Race Engineering Limited | Professional & scientific | 2013 |
| ABV61 Ltd | Extraterritorial | 2024 |