| Apex Governance Limited | London | 2025 |
| Apex Group Administration Services (UK) Limited | London | 2012 |
| Apex Group Cayman Holdings Limited | London | 2019 |
| Apex Group Company Services (UK) Limited | London | 2023 |
| Apex Group Consortium Limited | Nelson | 2026 |
| Apex Group Hold Co (UK) Limited | London | 2006 |
| Apex Group Holdco Limited | Edinburgh | 2026 |
| Apex Group Nominees 1 (UK) Limited | London | 2012 |
| Apex Group Nominees 2 (UK) Limited | London | 2012 |
| Apex Group of Companies Ltd | Blackburn | 2025 |
| Apex Group Services (UK) Limited | London | 2018 |
| Apex Group Trustee Company (UK) Limited | London | 2004 |
| Apex Highclere 26 Ltd | London | 2026 |
| Apex Holding & Investment Group Ltd | Wisbech | 2026 |
| Apex Holding Capital Limited | Harrow | 2025 |
| Apex Holding Group Limited | Harrow | 2022 |
| Apex Holdings (UK) Group Limited | London | 2015 |
| Apex Holdings Belfast Limited | Belfast | 2023 |
| Apex Holdings Northwest Ltd | Bolton | 2018 |
| Apex Holdings Southern Limited | Christchurch | 2018 |
| Apex Holdings UK Limited | Sidcup | 2007 |
| Apex Independent Financial Planning Ltd | Liverpool | 2015 |
| Apex Insurance Brokers Limited | Bristol | 2009 |
| Apex Insurance Services Limited | London | 2008 |
| Apex International Holdings Limited | Weybridge | 2024 |
| Apex Investments and Trading Ltd | Leicester | 2024 |
| Apex Investments Group Ltd | Brighton | 2025 |
| Apex Legacy Holdings Ltd | Shrewton | 2026 |
| Apex Legacy Property Services Ltd | London | 2026 |
| Apex Legal Global Holding Ltd | Greater London | 2026 |
| Apex Legal Risks Limited | Bristol | 2013 |
| Apex Lifts (Group) Limited | Bexleyheath | 2014 |
| Apex Listed Companies Services (UK) Limited | London | 2015 |
| Apex Litigation Finance Limited | London | 2018 |
| Apex Loan Agency Limited | London | 2014 |
| Apex Lseg Nominees Limited | London | 2026 |
| Apex Luxe Group Limited | Birmingham | 2024 |
| Apex Medical Holdings Limited | London | 2025 |
| Apex Money Transfer Ltd | Leeds | 2025 |
| Apex Mortgage & Protection UK Ltd | Leeds | 2017 |
| Apex Mortgage Advice Limited | Edinburgh | 2012 |
| Apex Mortgage Brokers Ltd | Waterlooville | 2025 |
| Apex Mortgage Finance Ltd | London | 2022 |
| Apex Mortgage Solutions Ltd | Greenock | 2023 |
| Apex Motor Education Solutions Ltd | London | 2026 |
| Apex Networks Holdings Limited | Godalming | 2017 |
| Apex Neuro (Holdings) Ltd | Cheadle Hulme | 2021 |
| Apex New Holdco Limited | London | 2022 |
| Apex Nexus Investments Ltd | King Langley | 2024 |
| Apex Office Interiors Holdings Limited | Luton | 2015 |
| Apex One Business Services Limited | Gravesend | 2012 |
| Apex Outsourcing Services Limited | London | 2020 |
| Apex Paraplanning Limited | Bolton | 2017 |
| Apex Partners Group Ltd | Rayleigh | 2022 |
| Apex Pension Trustee Company (1997) Limited | London | 1996 |
| Apex Pension Trustees Limited | London | 1995 |
| Apex Prime Care Group Ltd | Colchester | 2020 |
| Apex Private Finance Limited | Sutton Coldfield | 2019 |
| Apex Projects Holdings Ltd | Milton Keynes | 2023 |
| Apex Properties Global Ltd | Huddersfield | 2024 |
| Apex Realty One Ltd | London | 2025 |
| Apex Resources Group Ltd | Watford | 2024 |
| Apex Risk & KYC Limited | London | 2026 |
| Apex Risk Assessments Limited | Crowthorne | 2023 |
| Apex Safety & Compliance Ltd | Birmingham | 2026 |
| Apex Security Holding Ltd | Paignton | 2025 |
| Apex Sheffield (Holdings) Limited | Sheffield | 2022 |
| Apex Social Care Limited | Reigate | 2022 |
| Apex Solutions One Limited | London | 2025 |
| Apex Stainless Holdings Limited | Wednesbury | 2013 |
| Apex Strategic Consultants Limited | Waterlooville | 2025 |
| Apex Strategic Holdings Limited | Coventry | 2023 |
| Apex Strategic Marketing Partners Limited | London | 2016 |
| Apex Strategy Holdings Co. Limited | Stoke On Trent | 2026 |
| Apex Stratum Holdings Limited | Rochdale | 2026 |
| Apex Surveying Services Limited | Rossendale | 2012 |
| Apex Sustainability Group Limited | Sittingbourne | 2024 |
| Apex Topco Limited | Manchester | 2019 |
| Apex Unitas Limited | London | 2012 |
| Apex Urban Developments Holding Company Ltd | London | 2025 |
| Apex Valley Investments Limited | Welling | 2024 |
| Apex Ventures Fund Services Limited | London | 2010 |
| Apex Vision Labs Limited | London | 2025 |
| Apex Vitals International Ltd | Uckfield | 2022 |
| Apex Waris Investments Ltd | Leicester | 2025 |
| Apex Water Ltd | Royal Leamington Spa | 2023 |
| Apex Wealth Limited | Windlesham | 2020 |
| Apex Wealth Management Limited | Derby | 2012 |
| Apex-Ins Consultants Limited | Oxted | 2024 |
| APEX4 Trading Limited | Faringdon | 2023 |
| APEX888 Limited | Hitchin | 2026 |
| Apexadvisoryco Ltd | London | 2025 |
| Apexf Ltd | London | 2025 |
| Apexgridai Ltd | London | 2025 |
| Apexica Partners Ltd | Oldham | 2024 |
| Apexview Holdings Limited | Mildenhall | 2025 |
| Apexward Group Ltd | London | 2025 |
| Apexxe Holdings Ltd | Corby | 2025 |
| Apexxepa Ltd | Ripon | 2019 |
| APF (Holdings) Ltd | Colne | 2018 |