| 1 Alfred Road Birchington Limited | Households | 1987 |
| 1 Grimston Avenue Limited | Real estate | 2020 |
| 1 the Paddock Freehold Ltd | Households | 2016 |
| 10 EA (Freehold) Limited | Households | 2024 |
| 10 Sutherland ROW Freehold Limited | Real estate | 2009 |
| 103 Belgrave Road Limited | Extraterritorial | 2009 |
| 11 Norman Street RTM Company Ltd | Households | 2020 |
| 11 Victoria Park RTM Company Limited | Households | 2011 |
| 117-120 Snargate ST Management Company (Dover) Limited | Households | 2026 |
| 12 Victoria Park Freehold Limited | Professional & scientific | 2017 |
| 122 Foord Road Ltd | Real estate | 2023 |
| 13 Victoria Park Limited | Households | 2024 |
| 14 Victoria Park Dover Ltd | Households | 2022 |
| 151 & 153 Sandown Road Limited | Households | 2002 |
| 152 Queenstown Road Freehold Limited | Households | 2011 |
| 166/167 Snargate Street Dover Management Limited | Other services | 2007 |
| 1ST Choice Care Homes Limited | Health & social care | 2004 |
| 1ST Customs Intermediary (PJ) Ltd | Administrative & support | 2015 |
| 1ST Impressions (Kent) Limited | Arts & recreation | 2010 |
| 20 Clifton Gardens Management Limited | Households | 2004 |
| 22 Manor Road (Freeholders) Folkestone Ltd | Households | 2021 |
| 222 Dover Road (Management) Limited | Households | 1979 |
| 236 Dover Road Management Ltd | Real estate | 2012 |
| 240 Volts Renewables Limited | Construction | 2021 |
| 27-31 High Street Dover Management Company Ltd | Real estate | 2017 |
| 273K Limited | Administrative & support | 2003 |
| 2G2T Solutions Limited | Professional & scientific | 2018 |
| 2R Estates Ltd | Construction | 2025 |
| 3.1 Phillip LIM UK LLC | | 2013 |
| 38 Earls Avenue RTM Company Limited | Households | 2015 |
| 39 the Strand Freehold Limited | Households | 2017 |
| 3L Security Ltd | Administrative & support | 2016 |
| 4 Cannon Street Property Corp Ltd | Real estate | 2019 |
| 41 Augusta Gardens Management Company Limited | Households | 1990 |
| 4BK Limited | Information & communication | 2011 |
| 4D Roofing Limited | Construction | 2013 |
| 5 Saxon Street Management Ltd | Households | 2026 |
| 50 Folkestone Road Leasehold Ltd | Real estate | 2022 |
| 51, Folkestone Road Freehold Limited | Real estate | 2015 |
| 58 Castle Street Ltd | Real estate | 2024 |
| 7 Day Week Ltd | Wholesale & retail | 2025 |
| 7 East Cliff LBG Limited | Administrative & support | 2019 |
| 7 Nett Ltd | Administrative & support | 2020 |
| 712 Consulting Ltd | Education | 2024 |
| 76 Folkestone Road Dover Ltd | Real estate | 2014 |
| 9LINE Ltd | Information & communication | 2011 |
| A & C Gray Developments Ltd | Construction | 2010 |
| A & S Developments (Kent) Limited | Extraterritorial | 2010 |
| A B T Property Management Ltd | Real estate | 2006 |
| A J Softley Civil Engineering Limited | Construction | 2017 |
| A M Hayes Construction Limited | Construction | 2008 |
| A Mutually Associated Deptford Community Arts Project Coalition ("a Madcap Coalition") | Education | 2011 |
| A Positive View Limited | Administrative & support | 2010 |
| A Tavola Pizza Limited | Hospitality | 2026 |
| A Touch of Sun Ltd | Other services | 2019 |
| A W Hooper Building Limited | Construction | 2017 |
| A&E Electrics Limited | Construction | 2012 |
| A&E Group Investments Ltd | Financial services | 2025 |
| A&E Group Ltd | Financial services | 2025 |
| A&E Group Properties Ltd | Real estate | 2025 |
| A&M Johnson Ltd | Professional & scientific | 2025 |
| A&T Clearance Ltd | Transport & logistics | 2025 |
| A&Z Business Trading Ltd | Professional & scientific | 2018 |
| A.L.H. 86 Group Ltd | Extraterritorial | 2013 |
| A.R. Adams & Sons (Printers) Limited | Manufacturing | 1975 |
| A.Ro Distribution Import Export Ltd | Professional & scientific | 2024 |
| A1 Tyres (U.K.) Limited | Wholesale & retail | 2011 |
| A2Z Hospitality Ltd | Extraterritorial | 2008 |
| AA Hair Recovery Ltd | Other services | 2022 |
| AAC Kent Catering Limited | Hospitality | 2024 |
| AAG Training Services Ltd | Education | 2025 |
| AB HV LV Services Ltd | Professional & scientific | 2026 |
| Abbott and Wilde Limited | Wholesale & retail | 2018 |
| Aber Services Limited | Construction | 2011 |
| Abercrombie Roofing Property Improvements Ltd | Construction | 2020 |
| ABM Menuiserie Invest Ltd | Extraterritorial | 2016 |
| Abode Care Homes Ltd | Health & social care | 2016 |
| Abode Design and Construction Limited | Construction | 2021 |
| Acacia Number 1 Limited | Health & social care | 2007 |
| Acadedmy Dover CIC | Education | 2022 |
| ACC Electrical Contractors Limited | Construction | 2012 |
| Ace Assist Commercial Services Limited | Construction | 2025 |
| ACS Commercials Limited | Administrative & support | 2024 |
| ACS Domestics Limited | Administrative & support | 2023 |
| ACT & Achieve Ltd | Professional & scientific | 2021 |
| ACT Forwarding & Logistics Limited | Transport & logistics | 2005 |
| Active Community Development CIC | Education | 2021 |
| Active Security Systems (South) Ltd | Professional & scientific | 2009 |
| Adin Tech, Inc. | | 2026 |
| Adixion Invest Ltd | Information & communication | 2025 |
| Adixion Ltd | Extraterritorial | 2025 |
| Admirals Walk Hythe Limited | Households | 1978 |
| Advance Building Systems Limited | Construction | 2001 |
| Advance European Limited | Transport & logistics | 1995 |
| Advanced Canine Technologies Limited | Public administration | 2012 |
| Advancefirst Property Management Limited | Households | 1992 |
| Adwt Limited | Construction | 2022 |
| Aebroofingservices Limited | Administrative & support | 2021 |
| Aeromorphia Ltd | Extraterritorial | 2022 |
| Afft Ltd | Information & communication | 2026 |