| AJ Invest Limited | London | 2017 |
| AJ Investment and Consultancy Ltd | Croydon | 2025 |
| AJ Investments Scotland Limited | Glasgow | 2024 |
| AJ Lane (Holdings) Limited | Bishop'S Stortford | 2021 |
| AJ Legacy Investments Limited | Colne | 2025 |
| AJ Millard Holdings Limited | Wolverhampton | 2024 |
| AJ Minett Limited | Alresford | 2024 |
| AJ Mortgages Ltd | Watford | 2022 |
| AJ Newman Group Ltd | Plymouth | 2025 |
| AJ Nicholson Financial Consulting Ltd | Preston | 2017 |
| AJ Phoenix Consulting Ltd | Halifax | 2026 |
| AJ Property Group Limited | Poole | 2017 |
| AJ Protect Ltd | Clacton-On-Sea | 2014 |
| AJ Quinton (Holdings) Limited | Cardiff | 2024 |
| AJ Records Holdings Limited | Swaffham | 2026 |
| AJ Research Limited | Mitcham | 2010 |
| AJ Salter Holdings Limited | Haslemere | 2017 |
| AJ Secura Ltd | Birmingham | 2022 |
| AJ Senior Wealth Management Ltd | Ipswich | 2010 |
| AJ Shum Consulting Limited | Norwich | 2010 |
| AJ Singh Properties Holdings Ltd | Chatham | 2026 |
| AJ Smith Investment Ltd | Leeds | 2021 |
| AJ Strategic Investments Limited | London | 2024 |
| AJ Tech City Holdings Ltd | Milton Keynes | 2023 |
| AJ Transfer Ltd | Oxford | 2024 |
| AJ Turner Limited | Alfreton | 2011 |
| AJ Urban Homes Ltd | Slough | 2024 |
| AJ Wakely and Sons Holdings Ltd | Bridport | 2026 |
| AJ Walsh & Family Holdings Limited | Manchester | 2023 |
| AJ Wells & Sons Group Limited | Newport | 2020 |
| AJ Wilson Holdings Ltd | Talbot Green | 2026 |
| Aj&D Limited | Pengam | 2011 |
| Aj&S Holdings Ltd | Rochdale | 2023 |
| Aj&Se Investments Limited | Cheadle | 2024 |
| Aj's Holdings (Exmouth) Limited | Exmouth | 2025 |
| Aj.Fowler Holdings Ltd | Lisburn | 2026 |
| AJ13 Ventures Ltd | Birmingham | 2024 |
| AJ1402 Ltd | Blackburn | 2025 |
| AJ2 Asset Management Ltd | Brighton | 2024 |
| AJ91 Investment Ltd | Leicester | 2026 |
| AJA Associated Limited | London | 2014 |
| AJA Capital Holdings Ltd | London | 2024 |
| AJA Construction Ltd | Gainsborough | 2022 |
| AJA FAM Investments Limited | Newcastle Upon Tyne | 2018 |
| AJA Group Holdings Ltd | Newport | 2023 |
| AJA Holdings 2019 Limited | Dewsbury | 2019 |
| AJA Holdings London Ltd | Bexleyheath | 2024 |
| AJA Kent Ltd | Kent | 2020 |
| AJA Management Services Limited | Corby | 1987 |
| Ajac Accumulation Ltd | Hertford | 2025 |
| Ajack Limited | London | 2025 |
| Ajae Ltd | Bushmills | 2024 |
| Ajags (Scotland) Limited | Edinburgh | 2018 |
| Ajaindra Holdings Ltd | London | 2025 |
| Ajam Holdings Limited | Wolverhampton | 2023 |
| Ajaskew Holdings Ltd | Preston | 2026 |
| Ajax Insurance Association Limited(The) | Surrey | 1972 |
| Ajax Wealth Management Limited | Colchester | 2018 |
| Ajay Investments Limited | London | 2017 |
| Ajaz ALI Investments Ltd | Wolverhampton | 2023 |
| Ajaz ALI Trading Ltd | Wolverhampton | 2023 |
| AJB Finance Ltd | Bushey Heath | 2018 |
| AJB Financial Solutions Limited | Harrogate | 2017 |
| AJB Global Holdings Limited | Brighton | 2025 |
| AJB Holdings Staffordshire Limited | Stoke On Trent | 2016 |
| AJB Hydraulics Limited | Preston | 2018 |
| AJB Investment Holdings Limited | Wilmslow | 2022 |
| AJB Property Developments Limited | Leigh On Sea | 2019 |
| AJB Strategy Ltd | Milton Keynes | 2011 |
| AJB Tech Holdings Limited | Solihull | 2023 |
| Ajbn Investments Limited | Harrow | 2024 |
| Ajbp Holdings Limited | Chesterfield | 2025 |
| AJC & M Holdings Limited | Stoke On Trent | 2024 |
| AJC Consultants Limited | Burton-On-Trent | 2005 |
| AJC Dance Holdings Ltd | Belfast | 2023 |
| AJC Finance Ltd | Hoddesdon | 2022 |
| AJC Investment Holdings Limited | Bath | 2022 |
| AJC Ltd | Waltham Cross | 2023 |
| AJC Partnership Ltd | Dartmouth | 2021 |
| AJC Pharmacy Holdings Limited | Stanmore | 2013 |
| AJC Ventures Ltd | Worksop | 2023 |
| AJC Venturing Ltd | London | 2022 |
| AJC Wealth Management Limited | Birmingham | 2018 |
| Ajcc Properties Ltd | Southampton | 2022 |
| Ajcl Global Holdings Ltd | London | 2018 |
| Ajcor Group Ltd | Milton Keynes | 2025 |
| Ajcsw Ltd | Birmingham | 2023 |
| Ajcw Group Ltd | Keswick | 2018 |
| AJD 77 Ltd | Belfast | 2024 |
| AJD Financial Services Ltd. | Perth | 2009 |
| AJD Financial Solutions Ltd | Manchester | 2012 |
| AJD Law (Sunniside) Limited | Washington | 2024 |
| AJD Risk Partners Ltd | Horley | 2026 |
| AJE Evans Limited | Tonypandy | 2021 |
| AJE Finance Ltd | London | 2016 |
| AJE Holdings and Investments Ltd | Washington | 2024 |
| AJE Wealth Management Limited | Hitchin | 2023 |
| Ajeb Limited | London | 2024 |
| Ajejd Investments Ltd | London | 2024 |
| Ajelh Holding Company Limited | Bury St Edmunds | 2025 |