| Assent Financial Services Limited | Runcorn | 2013 |
| Assern Properties Limited | Birmingham | 2014 |
| Assert Services Limited | Ferndown | 2004 |
| Assertium Ltd | London | 2025 |
| Assess and Align CIC | Burnley | 2025 |
| Assess IT Ltd | Londonderry | 2021 |
| Assess Protection and Properties Limited | Sheffield | 2018 |
| Assess the Risk Security FM Ltd | Birmingham | 2025 |
| Assessimus Phoenixtm Limited | Wotton-Under-Edge | 2025 |
| Assessimus UK Technology Solutions Ltd | Wotton-Under-Edge | 2023 |
| Asset & Commercial Finance Limited | Gloucester, | 1990 |
| Asset & General Finance Ltd | Stirling | 2006 |
| Asset & Project Finance Ltd | Oxford | 2018 |
| Asset & Vehicle Management Limited | Nottingham | 2020 |
| Asset (Pandora Road NW6) Ltd | London | 2013 |
| Asset 11 Limited | Northolt | 2022 |
| Asset 247 Limited | Hengoed | 2024 |
| Asset 5 Group Limited | Wokingham | 2024 |
| Asset Administration Limited | Sawbridgeworth | 2026 |
| Asset Advantage Group Limited | Basingstoke | 1992 |
| Asset Advantage Limited | Basingstoke | 2001 |
| Asset Alliance Leasing Limited | London | 2015 |
| Asset Alternatives Limited | Haywards Heath | 2016 |
| Asset and Business Finance Limited | Preston | 2017 |
| Asset and Commercial Vehicle Finance Limited | Stalybridge | 2022 |
| Asset and Investment Management Resource Limited | Ludlow | 2013 |
| Asset and Liability Management Association Limited | London | 2014 |
| Asset and Property FX Limited | Tring | 2008 |
| Asset ARC Limited | Tamworth | 2026 |
| Asset Assured Group Limited | Leicestershire | 2025 |
| Asset Backed Loans Ltd | London | 2025 |
| Asset Based Lending Limited | London | 2017 |
| Asset Bridge Ltd | Peterborough | 2025 |
| Asset Capital Group Holdings Limited | Wetherby | 2024 |
| Asset Capital Leeds City Resi Limited | Wetherby | 2026 |
| Asset Capital Limited | Wetherby | 2017 |
| Asset Capital Management UK Limited | London | 2016 |
| Asset Exchange Holdings Limited | Basildon | 2016 |
| Asset Finance & Leasing Limited | Melksham | 2009 |
| Asset Finance 1 Class a Note Issueco Holdco Limited | London | 2016 |
| Asset Finance 1 Class a Note Issueco PLC | London | 2016 |
| Asset Finance 1 Class B Note Issueco Holdco Limited | London | 2016 |
| Asset Finance 1 Class B Note Issueco PLC | London | 2016 |
| Asset Finance 247 Ltd | London | 2023 |
| Asset Finance and Recovery Ltd | Ipswich | 2016 |
| Asset Finance and Refinance Limited | Rotherham | 2015 |
| Asset Finance Holdco Limited | London | 2018 |
| Asset Finance MAN Limited | Okehampton | 2022 |
| Asset Finance N.I. Ltd | Chester | 2017 |
| Asset Finance Northampton Limited | Wellingborough | 2017 |
| Asset Finance Options Limited | Deganwy | 2004 |
| Asset Finance Scotland Ltd | Dalkeith | 2010 |
| Asset Finance Solutions (UK) Ltd | Blackburn | 2014 |
| Asset Finance Specialists Ltd | Exeter | 2019 |
| Asset Finance UK Cashflow Limited | Leeds | 2011 |
| Asset Finance UK Holdings Limited | Leeds | 2013 |
| Asset Finance.Co.Uk. Limited | Basildon | 2019 |
| Asset Financial Engineering Limited | Norwich | 2019 |
| Asset Financial Services Limited | Norwich | 2019 |
| Asset Financing Limited | Dorking | 1991 |
| Asset Funder Limited | Rayleigh | 2015 |
| Asset Global Ltd | Harrow | 2024 |
| Asset Green Growth Capital Limited | London | 2025 |
| Asset Green Ltd | London | 2023 |
| Asset Green Ventures Ltd | London | 2026 |
| Asset Growth Investments Limited | Winchester | 2013 |
| Asset Growth Limited | Cheshunt | 2021 |
| Asset Guardian Company Limited | Swindon | 1997 |
| Asset Guide Limited | Sale | 2017 |
| Asset Handle Ltd | Uckfield | 2016 |
| Asset Harbour Group Holdings Limited | Ashford | 2019 |
| Asset Harbour Mortgages & Protection Ltd | Farnham | 2019 |
| Asset Hire Ltd | Basingstoke | 2021 |
| Asset Holdings Ltd | Barnsley | 2026 |
| Asset Insurance Solutions Ltd | Northampton | 2013 |
| Asset Intelligence Portfolio Management Ltd | Leicester | 2019 |
| Asset Intelligence Research Limited | Leicester | 2009 |
| Asset Invest International Limited | London | 2020 |
| Asset Invest Ltd | London | 2021 |
| Asset Investment Management Ltd. | Norwich | 2006 |
| Asset Investment Partners Limited | London | 2016 |
| Asset Leasing & Finance Limited | Thatcham | 2019 |
| Asset Link Capital (NO. 7) Limited | London | 2019 |
| Asset Link Capital 3 (Holdings) Limited | London | 2006 |
| Asset Loan Management Limited | Croydon | 2018 |
| Asset Loans & Leasing Finance Ltd | Horsham | 2025 |
| Asset Management (2020) Limited | Hampshire | 2020 |
| Asset Management (2025) Limited | Eastleigh | 2024 |
| Asset Management Building Ltd | London | 2021 |
| Asset Management Financial Advisers Limited | Southampton | 1987 |
| Asset Management Holdings Ltd | London | 2020 |
| Asset Management Limited | | 1975 |
| Asset Management One International Ltd. | London | 1997 |
| Asset Managers Scotland Limited | Dundee | 2020 |
| Asset Match Limited | London | 2011 |
| Asset Monetization Holdings Limited | Woking | 2021 |
| Asset Mortgage Solutions Limited | Usk | 2004 |
| Asset Nominees Limited | Coulsdon | 1987 |
| Asset Organisation Ltd | Sunderland | 2015 |
| Asset Planning Solutions Limited | Amersham | 2009 |