| 3 Active (CFS) Limited | Professional & scientific | 2015 |
| 3 Active Technical Compliance Limited | Other services | 2016 |
| A.I.M. Academy of Dance Limited | Arts & recreation | 2016 |
| Adam's Taxis Limited | Transport & logistics | 2020 |
| Aegis 4 Security Ltd | Manufacturing | 2001 |
| Aristocrat Properties Limited | Real estate | 2008 |
| Brown & Gammons Developments Limited | Construction | 2016 |
| Business Process Advice Limited | Professional & scientific | 2024 |
| BY Design Trainings Ltd | Other services | 2014 |
| Caruso BGA Investments Ltd | Real estate | 2025 |
| Caruso Home Solutions Ltd | Construction | 2012 |
| Cbps (Whitchurch) Limited | Real estate | 2019 |
| Chesterholm Properties Ltd | Real estate | 2015 |
| CK Specialist Access Ltd | Administrative & support | 2022 |
| Claydon Environmental Limited | Professional & scientific | 2023 |
| Clss UK Limited | Real estate | 2022 |
| Community Music Education Limited | Education | 2025 |
| Contract Industrial Supplies Limited | Wholesale & retail | 2011 |
| Crazy 4 Kids (CPD) Limited | Administrative & support | 2016 |
| Cyberned Ltd | Professional & scientific | 2024 |
| Domos (UK) Limited | Real estate | 2013 |
| Dragonfly Moon Limited | Arts & recreation | 2016 |
| E Sports Media Limited | Information & communication | 2009 |
| Eden Wellness Limited | Health & social care | 2022 |
| Enviable Limited | Professional & scientific | 2013 |
| Esteem Builders Ltd | Other services | 2013 |
| Foxham Automotive Limited | Wholesale & retail | 2017 |
| G8 Taxis Limited | Transport & logistics | 2020 |
| Garage Conversions (South East) Limited | Construction | 2015 |
| H M Brow & Skin Studio Ltd | Other services | 2026 |
| Inner Sight Ltd | Health & social care | 2013 |
| Intelli-Flue Ltd | Other services | 2011 |
| IVE Electrical Services Limited | Construction | 2023 |
| JLS Developments Ltd | Construction | 2017 |
| K D J Transport Limited | Transport & logistics | 2023 |
| KHD Project Management Limited | Professional & scientific | 2017 |
| KLS Designs Ltd | Professional & scientific | 2005 |
| L H Data Protection Services Ltd | Information & communication | 2023 |
| LAB 4 D Limited | Other services | 2007 |
| Letchworth Handyman Limited | Manufacturing | 2022 |
| Marsh Merchant Services UK Limited | Manufacturing | 2011 |
| Marsh Polylok Limited | Professional & scientific | 2009 |
| Martin Hughes Carpentry & Joinery Ltd | Construction | 2015 |
| Merry Day Centre Limited | Health & social care | 2017 |
| MLH Property Services Limited | Construction | 2016 |
| Mmad Studio Limited | Professional & scientific | 2021 |
| MTM Professional Services Limited | Professional & scientific | 2009 |
| Munitio Limited | Real estate | 2017 |
| MVQ Music Ltd | Professional & scientific | 2010 |
| Nene Valley Couriers LLP | | 2022 |
| Nezar Property Limited | Real estate | 2020 |
| NJB Cleaning Services Limited | Administrative & support | 2023 |
| Nuvo Aesthetics Limited | Health & social care | 2016 |
| Nuvo Estates Limited | Real estate | 2016 |
| Nuvo Medical Limited | Professional & scientific | 2024 |
| P & D Findlay Ltd | Agriculture & fishing | 2012 |
| P K L Properties Limited | Real estate | 2018 |
| Performance Car Club Limited | Wholesale & retail | 2001 |
| Pinswell Finance Limited | Financial services | 2022 |
| Portapura Limited | Water & waste | 2017 |
| Pyrmont Properties Ltd | Real estate | 2017 |
| Quam VC LLP | | 2012 |
| Rail Depot Solutions Limited | Professional & scientific | 2015 |
| Red Carpet Communications Ltd | Other services | 2012 |
| Reefer Properties Ltd | Real estate | 2017 |
| Russell Linard Limited | Construction | 2020 |
| Safe & Secure Systems Limited | Administrative & support | 2003 |
| SEO Audits IO Ltd | Professional & scientific | 2022 |
| Serpecon (UK) Limited | Other services | 2001 |
| Sharingplay Limited | Other services | 2014 |
| Sheer Perfection Hair Limited | Other services | 2018 |
| Shilia and Amber Limited | Professional & scientific | 2008 |
| Shillington Trademarks Limited | Professional & scientific | 2015 |
| Stephen Crow Wealth Management Limited | Financial services | 2015 |
| Straw HUT Management Ltd | Real estate | 2012 |
| T C Northampton Limited | Administrative & support | 2020 |
| Tall Trees Enterprises (Shefford) Limited | Real estate | 1987 |
| THE Country House Buying Agency Ltd | Information & communication | 2025 |
| THE Great Exhibition Company UK Ltd | Professional & scientific | 2007 |
| THE Sandwich Bar Dunstable Limited | Hospitality | 2023 |
| Three Hands Developments Limited | Real estate | 2021 |
| Topmark (UK) Ltd | Administrative & support | 2008 |
| Vivacious World Group Ltd | Professional & scientific | 2013 |
| Whisspurr Limited | Manufacturing | 2021 |
| Winterbraun Investments Limited | Construction | 2023 |
| Xulu Limited | Real estate | 2022 |
| Zenparts UK Limited | Manufacturing | 2014 |
| ZU Financial Services Limited | Real estate | 2009 |