| Ashley Gate Management Company Limited | Households | 2007 |
| Ashley Motor Repairs Limited | Wholesale & retail | 2022 |
| Ashley Number One Management Company Limited | Households | 1985 |
| Ashley Number Two Management Company Limited | Households | 1985 |
| Ashley Pharmacy Ltd | Wholesale & retail | 2011 |
| Ashmere Park (Ruddington) Management Company Limited | Households | 2004 |
| Ashowells Solutions Limited | Professional & scientific | 2013 |
| Ashton Court Limited | Households | 1981 |
| Ashton Rise Management Company Limited | Professional & scientific | 2017 |
| Ashwood (Hockley Heath) Management Company Limited | Households | 2017 |
| Ashwood Green Management Company Limited | Households | 2004 |
| Aspect Building and Carpentry Limited | Construction | 2022 |
| Aspen Apartments (Colchester) Management Company Limited | Households | 2021 |
| Aspen Flats Limited | Households | 1964 |
| Aspire at Warmington Management Company Limited | Households | 2013 |
| Aspire Property Services (Dorset & Hampshire) Ltd | Water & waste | 2017 |
| Association for Yoga Studies (AYS) Limited | Other services | 2019 |
| Aston Grange (Newport Pagnell) Management Company Limited | Households | 2010 |
| Aston Square (Oldbury) Management Company Limited | Households | 2007 |
| Astrid Davies Consulting Limited | Education | 2014 |
| Atech UK Ltd | Construction | 2005 |
| Atelier Poli Limited | Manufacturing | 2025 |
| Atlas Ceramics (South) Limited | Wholesale & retail | 2004 |
| Atlas Ceramics Holdings Limited | Real estate | 2021 |
| Atout Process Limited | Professional & scientific | 2010 |
| Audley House Resident Management Company Limited | Households | 2016 |
| Aurora Freehold Ltd | Households | 2021 |
| Avon Scientific Limited | Wholesale & retail | 1994 |
| Avondale Marketing Limited | Wholesale & retail | 1983 |
| AVR Property Investment Limited | Real estate | 2025 |
| Axis (Coventry) Management Company Limited | Households | 2007 |
| BA Taper and Jointer Limited | Administrative & support | 2017 |
| Babbage Bidco Limited | Financial services | 2022 |
| Back Office Accounting and Bookkeeping Services Limited | Professional & scientific | 2013 |
| Badbury Court (Mudeford) Management Company Limited | Professional & scientific | 1988 |
| Bagnall Meadows Management Company Limited | Households | 2018 |
| Bakelicious (Lymington) Ltd | Wholesale & retail | 2026 |
| Balmzone Limited | Households | 1988 |
| Banbury Place (Wolverhampton) Management Company Limited | Households | 2020 |
| Banbury Road (Stratford) Management Company Limited | Households | 2012 |
| Bannerbrook Park (Phase 3) Apartments Management Company Limited | Households | 2009 |
| Barbourne Works Limited | Households | 2004 |
| Bardon Hall Woodlands Limited | Households | 2001 |
| Bardswell Court Management Company Limited | Households | 2000 |
| Barker Services Limited | Other services | 2020 |
| Barley Mead (Calcot) Management Company (2) Limited | Real estate | 1994 |
| Barley Yard Management Limited | Households | 2009 |
| Barnhill Gate Management Company Limited | Households | 2015 |
| Barton Chase Flat Freehold Limited | Households | 2011 |
| Barton Chase Flat Management Company Limited | Households | 1996 |
| Barton Court Consulting Limited | Professional & scientific | 2010 |
| Barton Dome Management Ltd | Households | 2022 |
| Barton House Management Company Limited | Households | 1995 |
| Barton Mount Management Co. Limited | Real estate | 1999 |
| Barton-On-Sea Cars Ltd | Wholesale & retail | 2019 |
| Barton-On-Sea Golf Club Limited | Arts & recreation | 1956 |
| Barum Knoll, Barnstaple Management Company Limited | Households | 2022 |
| Bashley Football Limited | Education | 2026 |
| Bassett House Freehold Limited | Households | 2025 |
| Bassingbourn Reach (Bassingbourn) Management Company Limited | Households | 2019 |
| Batheway Fields Management Company Limited | Households | 2014 |
| Bathroom Design Centre Limited | Administrative & support | 2007 |
| Batson High View Management Company Limited | Households | 2014 |
| BBL Catering Ltd | Hospitality | 2022 |
| Bcst Developments Ltd | Real estate | 2022 |
| Bea's Home Furnishings Limited | Construction | 2021 |
| Beach Avenue Consulting Limited | Professional & scientific | 2017 |
| Beach Road (Pelham Grange) Cottenham Management Company Limited | Households | 2014 |
| Beacon Road at Seamer Management Company Limited | Professional & scientific | 2019 |
| Beaufort Gardens Residents Limited | Households | 1994 |
| Beaulieu Park (Chelmsford) Management Company Limited | Households | 2021 |
| Beaumont Gardens at Sutton Courtenay Management Company Limited | Households | 2015 |
| Beaumont Leys Management Company Limited | Households | 2010 |
| Beavans House Management Company Limited | Households | 2020 |
| Beck Electrical Solutions Ltd | Construction | 2021 |
| Beckets Grove Phase 2 (Wymondham) Residents Management Company Limited | Households | 2015 |
| Becketts Ridge at Shrivenham Management Company Limited | Households | 2015 |
| Beckford Road (Alderton) Management Company Limited | Households | 2015 |
| Becton Cottages Management Company Limited | Households | 2009 |
| Beechwood (Block L) Management Company Limited | Households | 1990 |
| Beechwood (Block N) Management Company Limited | Households | 1990 |
| Beechwood (Block O) Management Company Limited | Households | 1990 |
| Beetweengardens Ltd | Water & waste | 2021 |
| Bell Lane (Little Chalfont) Management Company Limited | Households | 2011 |
| Bella Talent Ltd | Professional & scientific | 2024 |
| Belle Fields Management Company Limited | Households | 2014 |
| Bellevue (Bude) Management Company Limited | Households | 2020 |
| Bellwood Park Management Company Limited | Households | 2006 |
| Belmont Road Management Limited | Households | 1992 |
| Belmore Road Management Company Limited | Households | 1988 |
| Bennetts Fields Apartments Management Company Limited | Households | 2019 |
| Beresford Grove Management Company Limited | Households | 2009 |
| Berners Bidco Limited | Financial services | 2022 |
| Berrington (Barton on Sea) Limited | Households | 2016 |
| Berrington Mews Management Company Limited | Households | 2010 |
| Berry Head Park Management Company Limited | Administrative & support | 2016 |
| Berryfields (Barnstaple) Management Company Limited | Real estate | 2018 |
| Besley Court Management Company Limited | Real estate | 2016 |
| Bespoke Crew Limited | Other services | 2020 |
| Best Foot Forward (Hampshire) Limited | Health & social care | 2013 |