| Amberwood Chase Management Company Limited | Leeds | 2014 |
| Amberwood Grove Residents Limited | Epsom | 2025 |
| Amberwood House Management Limited | Shepton Mallet | 1982 |
| Amberwood Management Company (Hastings) Limited | St. Leonards-On-Sea | 2000 |
| Amberwood Management Company Limited | Milton Keynes | 1993 |
| Amberwood RTM Limited | Ringwood | 2010 |
| Amberwood Way Management Company Limited | Salford | 2025 |
| Ambi Energy Ltd | Waterlooville | 2025 |
| Ambion Way Burbage Management Company Limited | Flintshire | 2018 |
| Amblecote Close Residents Company Limited | Croydon | 1967 |
| Amblecote Meadows Residents Company Limited | Brampton | 1967 |
| Amblecote Property Ltd | Leamington Spa | 2024 |
| Ambledash Limited | Surrey | 2007 |
| Amblefield Court Management Ltd | Aldermaston | 2024 |
| Amblehurst Green (Billingshurst) Management Company Limited | Solihull | 2017 |
| Ambler's Meadow (East Ardsley) Management Company Limited | Hemel Hempstead | 2020 |
| Ambleside (Freehold) Limited | Bexley | 2023 |
| Ambleside (Kendal Road) Management Company Limited | Shrewsbury | 2004 |
| Ambleside Apartments RTM Management Company Limited | Brighton | 2013 |
| Ambleside Avenue Management Company Limited | Hemel Hempstead | 2011 |
| Ambleside Court Telscombe Cliffs Limited | Portsmouth | 2006 |
| Ambleside House Management Limited | Croydon | 1985 |
| Ambleside MGT Co Limited | King'S Lynn | 2023 |
| Ambleside Overview Limited | Blackpool | 1992 |
| Ambleside Todd's Hill Management Ltd | Belfast | 2014 |
| Ambmead Limited | Winchester | 1973 |
| Ambridge Court Management Limited | Bognor Regis | 1990 |
| Ambridge Fields Management Company Limited | Birmingham | 2026 |
| Ambrook Residents Association Limited | Torquay | 1992 |
| Ambrosden (NO2) Residents Company Limited | Peterborough | 2002 |
| Ambrosden Residents Company Limited | Peterborough | 1997 |
| Ambrose Court Management Committee (Leyland) Limited | Preston | 2002 |
| Ambrose Court Nettleham Residents Management Co Limited | Lincoln | 2013 |
| Ambrose House Limited | Seaton | 2002 |
| Ambrose Mews Management (1993) Limited | London | 1993 |
| Ambrose Property Management Ltd | Ilford | 2015 |
| Ambrose Street (Management Company) Limited | York | 2008 |
| Ambs Developments Ltd | London | 2020 |
| Ambury Estates Ltd | Gravesend | 2025 |
| AMC Assets Limited | Glasgow | 2022 |
| AMC HK Properties Ltd | Halifax | 2025 |
| AMC Property Management Services Limited | Glasgow | 2016 |
| AMC Real Estate Limited | Peterborough | 2016 |
| AMD Management Ltd | Omagh | 2021 |
| Amdd General Services Limited | London | 2013 |
| AME Property Freehold Ltd | London | 2026 |
| Ameer Taiba Properties Ltd | Smethwick | 2026 |
| Ameerah Investment Ltd | Bonnyrigg | 2025 |
| Ameizing Property Ltd | Cardiff | 2026 |
| Amelia Court Kings Hill Management Company Limited | Gillingham | 2018 |
| Amelia Court Property Maintenance Ltd | Chichester | 2006 |
| Amelia House Management Company Limited | Nottingham | 2023 |
| Amelia Wood Way Management Company Ltd | Louth | 2019 |
| Amelie Place (Esher) Limited | Epsom | 2014 |
| Amen Corner (Binfield) Management Company Limited | Salisbury | 2017 |
| Amenbury Court Residents Association (Harpenden) Limited | Dunstable | 1966 |
| Amenic Court Management Limited | Littlehampton | 1989 |
| Amenity Services Limited | Shrewsbury | 1987 |
| Amer Managements Ltd | Manchester | 2017 |
| Amerden Lakes Management Company Ltd | Maidenhead | 2003 |
| Americana Faurex (Freeholds) Limited | London | 2000 |
| Amersham House RTM Company Limited | London | 2013 |
| Amersham Lodge Limited | London | 1987 |
| Amersham Road Management Limited | Uxbridge | 2012 |
| Amerton Place Residents Management Co Ltd | Uttoxeter | 2014 |
| Ames Court Management Limited | Bishop'S Stortford | 2017 |
| Amesbury 41 Limited | Liverpool | 2014 |
| Amesbury Court Enfield (Management) Limited | Barnet | 1971 |
| Amesbury Court Freehold Limited | Barnet | 2002 |
| Amesbury Court Management (Leicester) Limited | Leicester | 1982 |
| Amesmount Management Limited | Llandudno | 1994 |
| Amey Hill House Limited | London | 1994 |
| Ameylan Limited | Cardiff | 2025 |
| Amfb Management Co Limited | Grantham | 2020 |
| AMG Industrial Solution Ltd | Preston | 2024 |
| AMG Plumbing and Joinery Ltd | Cramlington | 2026 |
| Amgate Properties Limited | | 1997 |
| Amglo Property Management Limited | Sidmouth | 2025 |
| Amherst 38 Limited | Hastings | 2013 |
| Amherst Hill (Brompton) Management Company Limited | Rocheser | 2013 |
| Amherst Housing Association (1985) Limited | London | 1985 |
| Amherst Mews Management (Sevenoaks) Ltd | Sevenoaks | 2020 |
| Amherst Mews Management Company Limited | Reading | 1992 |
| Amherst Road Management Company Limited | Hastings | 2019 |
| Amherst Street Management Company / Cwmni Rheolaeth Stryd Amherst Cyfyngedig | Cardiff | 2002 |
| Amhurst Manor Limited | Letchmore Heath | 2002 |
| Amhurst Park Residents Association Limited | Woodford Green | 1976 |
| Amhurst Place Residents Limited | Sawbridgeworth | 2000 |
| Amibara RTM Company Limited | Knightwick, Worcestershire | 2025 |
| Amico Portfolio Builders Ltd | Portsmouth | 2019 |
| Amie Lane Management Limited | Birmingham | 2019 |
| Amigees Ltd | Brighton | 2019 |
| Amigo Ovens Limited | London | 2010 |
| Amigos Property Limited | Belfast | 2022 |
| Amington Garden Village Management Company Limited | Ewloe | 2019 |
| Amir 103 Real Estate Ltd | Lewes | 2012 |
| Amir Zarar Ltd | Edinburgh | 2024 |
| Amira Court Management Company Limited | Winton, Bournemouth | 1992 |
| Amirmarika Ltd | Plymouth | 2026 |
| Amity Court RTM Company Ltd | London | 2013 |