| 14 Addison Crescent Freehold Limited | Households | 2007 |
| Abba Investments Limited | Real estate | 2014 |
| ABC Radio C.I.C. | Information & communication | 2020 |
| AEC Management Services Limited | Administrative & support | 1978 |
| Aldeburgh Boatyard Co.Limited | Manufacturing | 1966 |
| Aldeburgh Cinema Trust | Arts & recreation | 2013 |
| Aldeburgh Consultancy Ltd | Extraterritorial | 2020 |
| Aldeburgh Contemporary Arts Limited | Wholesale & retail | 2001 |
| Aldeburgh Golf Club Ltd | Hospitality | 2021 |
| Aldeburgh Physio and Pilates Studio Limited | Other services | 2026 |
| Alderiver Limited | Wholesale & retail | 2011 |
| Alexandra Langdon Limited | Administrative & support | 2016 |
| Anthony Alexander Estates Limited | Real estate | 2020 |
| Astraea Film and Theatre Productions Limited | Arts & recreation | 2021 |
| Atfixings Ltd | Wholesale & retail | 2025 |
| Birch Field (Framsden) Management Company Limited | Households | 2024 |
| BOA Dynamics Limited | Professional & scientific | 2015 |
| Breathing River Limited | Wholesale & retail | 2012 |
| Britten Estate Limited(The) | Arts & recreation | 1986 |
| Britten-Pears Foundation(The) | Arts & recreation | 1986 |
| BRT Enterprises Ltd | Construction | 2024 |
| Caroline Wiseman Ltd | Wholesale & retail | 1985 |
| CD Residential Ltd | Real estate | 2025 |
| CFR Boulevard Limited | Households | 2024 |
| Chris Halder Limited | Professional & scientific | 2010 |
| Church Farm Antiques Ltd | Wholesale & retail | 2011 |
| Claremont Thermonovel LLP | | 2021 |
| Clerks Well Developments Limited | Construction | 2014 |
| Clerks Well Properties Limited | Real estate | 2009 |
| Cornwallis Anderson Limited | Professional & scientific | 2021 |
| Coverdeep Limited | Professional & scientific | 1997 |
| Dailyaid Ltd | Wholesale & retail | 2022 |
| Demon Yachts Ltd | Manufacturing | 2010 |
| Df&G Ltd | Professional & scientific | 2010 |
| Dominic Whiten & Associates Ltd | Professional & scientific | 2011 |
| EA Data Limited | Construction | 2011 |
| Eco-Pebble Ltd | Wholesale & retail | 2014 |
| Edith & Elsie Productions Ltd | Information & communication | 2011 |
| FFA (Fire & First AID) Ltd | Professional & scientific | 2018 |
| Fishers GIN Ltd | Wholesale & retail | 2015 |
| Fleur Aldeburgh Limited | Wholesale & retail | 2011 |
| FOR Your Diamonds Only Limited | Wholesale & retail | 2013 |
| Gilfour Limited | Administrative & support | 2012 |
| Gorse Developments Limited | Construction | 1993 |
| Granvilles Garden Aldeburgh Limited | Households | 1998 |
| Gumby Corporation Limited(The) | Arts & recreation | 1975 |
| Haworth Property Ltd | Construction | 2023 |
| Heritage Coast Events C.I.C. | Arts & recreation | 2022 |
| Hive & Design Ltd | Wholesale & retail | 2016 |
| Hopayian MD Limited | Health & social care | 2013 |
| Hunnimill Automation Limited | Information & communication | 1997 |
| Inpafamly Management Limited | Real estate | 2021 |
| J W Haworth Contracts Ltd | Construction | 2021 |
| JON Green Engineering Services Limited | Manufacturing | 2014 |
| Juwel Properties Ltd | Real estate | 2019 |
| Kaisha Suffolk Ltd | Hospitality | 2017 |
| Kettel Ltd | Hospitality | 2015 |
| Kingtime Electrical Services Limited | Construction | 2001 |
| Lawson's and Company Aldeburgh Limited | Financial services | 2025 |
| Lawson's Food Hall Limited | Wholesale & retail | 2024 |
| Leven Limited | Extraterritorial | 1998 |
| Library Pictures Limited | Information & communication | 2004 |
| Mandeville Technology Limited | Professional & scientific | 2004 |
| Marshtail Limited | Other services | 2015 |
| Mayday Management Limited | Professional & scientific | 1983 |
| Mayday Management PS Ltd | Professional & scientific | 2012 |
| MCT Electrical Limited | Wholesale & retail | 2011 |
| Mirrorstoke Limited | Construction | 1972 |
| MLB Property and Design Ltd | Real estate | 2010 |
| Monarch Owners Limited | Households | 2013 |
| Mont Fort Limited | Extraterritorial | 2009 |
| Ndru Ltd | Construction | 2023 |
| Northpoint House Management Limited | Households | 2008 |
| O S 166 Residents Association (Aldeburgh) Limited | Administrative & support | 1971 |
| OGS Trading (Aldeburgh) Ltd | Other services | 2006 |
| Orlando's Aldeburgh Ltd | Wholesale & retail | 2022 |
| Park Road Aldeburgh (Maintenance ) Limited | Real estate | 1961 |
| Parsnip Consulting Limited | Information & communication | 2025 |
| Passage Cycles Ltd | Arts & recreation | 2019 |
| PEP Coaching Ltd | Professional & scientific | 2012 |
| Perfect Moment Games Ltd | Information & communication | 2025 |
| Ponyboy Music Limited | Administrative & support | 2018 |
| Prominent Features Limited | Information & communication | 2005 |
| Prominent Palin Productions Limited | Information & communication | 1990 |
| Prominent Television Limited | Information & communication | 1990 |
| Rachael Keeble Consultancy Limited | Professional & scientific | 2022 |
| Red Herring Chinese Ltd | Hospitality | 2025 |
| Richard Smith Engineering Limited | Manufacturing | 2011 |
| ROB Mcculloch Limited | Professional & scientific | 2005 |
| Rohrex Limited | Construction | 2000 |
| S&E Wightman Holdings Ltd | Wholesale & retail | 2026 |
| Sail Loft Consulting Limited | Information & communication | 2011 |
| Sailmakers Loft Company Limited | Professional & scientific | 1998 |
| Salter and King Limited | Wholesale & retail | 2013 |
| Sandpolo Ltd | Other services | 2007 |
| Saxmundham Caravanning and Camping Limited | Hospitality | 2025 |
| SCA Fashion Ltd | Wholesale & retail | 2024 |
| Schemaplay Community Interest Company | Education | 2018 |
| Seacon Residents Company Limited | Households | 2002 |
| Seazest Ltd | Wholesale & retail | 2025 |