| Abbotsinch V4P 1A Limited | Professional & scientific | 2025 |
| Abbotsinch Vets for Pets Limited | Professional & scientific | 2026 |
| Aberdeen North VETS4PETS Limited | Professional & scientific | 2017 |
| Aberdeen VETS4PETS Limited | Professional & scientific | 2015 |
| Abingdon VETS4PETS Limited | Professional & scientific | 2015 |
| Abtw Limited | Professional & scientific | 2011 |
| Accounting Information and Business Intelligence Limited | Administrative & support | 2024 |
| Accrington VETS4PETS Limited | Professional & scientific | 2016 |
| Air Temp Solutions (NW) Limited | Construction | 2020 |
| Airdrie VETS4PETS Limited | Professional & scientific | 2011 |
| Alsager VETS4PETS Limited | Professional & scientific | 2015 |
| Alton VETS4PETS Limited | Professional & scientific | 2015 |
| Altrincham VETS4PETS Limited | Professional & scientific | 2013 |
| Amesbury VETS4PETS Limited | Professional & scientific | 2014 |
| Andover VETS4PETS Limited | Professional & scientific | 2012 |
| Apac Remote Support Ltd | Information & communication | 2018 |
| Aspire Monitoring Services Limited | Administrative & support | 2019 |
| Bagshot VETS4PETS Limited | Professional & scientific | 2015 |
| Bangor VETS4PETS Limited | Professional & scientific | 2008 |
| Bangor Wales VETS4PETS Limited | Professional & scientific | 2012 |
| Barnsley VETS4PETS Limited | Professional & scientific | 2001 |
| Barnstaple VETS4PETS Limited | Professional & scientific | 2018 |
| Barnwood VETS4PETS Limited | Professional & scientific | 2013 |
| Barry VETS4PETS Limited | Professional & scientific | 2015 |
| Bath VETS4PETS Limited | Professional & scientific | 2015 |
| Bearsden VETS4PETS Limited | Professional & scientific | 2011 |
| Beckenham VETS4PETS Limited | Professional & scientific | 2024 |
| Bedford VETS4PETS Limited | Professional & scientific | 2003 |
| Bedlington VETS4PETS Limited | Professional & scientific | 2015 |
| Bedminster VETS4PETS Limited | Professional & scientific | 2014 |
| Beeston VETS4PETS Limited | Professional & scientific | 2009 |
| Belfast Stormont VETS4PETS Limited | Professional & scientific | 2014 |
| Bespoke Garden Elements Ltd | Administrative & support | 2021 |
| Beverley VETS4PETS Limited | Professional & scientific | 2011 |
| BFS Handforth Limited | Financial services | 2003 |
| Bicester VETS4PETS Limited | Professional & scientific | 2016 |
| Biggleswade VETS4PETS Limited | Professional & scientific | 2015 |
| Bishop Auckland Cockton VETS4PETS Limited | Professional & scientific | 2024 |
| Bishop's Stortford VETS4PETS Limited | Professional & scientific | 2015 |
| Bishopston VETS4PETS Limited | Professional & scientific | 2011 |
| Bitterne VETS4PETS Limited | Professional & scientific | 2009 |
| Bizzle Marketing Limited | Professional & scientific | 2011 |
| Blackburn VETS4PETS Limited | Professional & scientific | 2017 |
| Blackheath VETS4PETS Limited | Professional & scientific | 2014 |
| Blackpool Squires Gate VETS4PETS Limited | Professional & scientific | 2015 |
| Blackpool Warbreck VETS4PETS Limited | Professional & scientific | 2013 |
| Blackwood VETS4PETS Limited | Professional & scientific | 2015 |
| Bodmin Launceston Road VETS4PETS Limited | Professional & scientific | 2025 |
| Bolton Central VETS4PETS Limited | Professional & scientific | 2017 |
| Bolton VETS4PETS Limited | Professional & scientific | 2008 |
| Bonnyrigg VETS4PETS Limited | Professional & scientific | 2017 |
| Borehamwood VETS4PETS Limited | Professional & scientific | 2014 |
| Bourne VETS4PETS Limited | Professional & scientific | 2016 |
| Bracknell Peel Centre VETS4PETS Limited | Professional & scientific | 2020 |
| Bracknell VETS4PETS Limited | Professional & scientific | 2017 |
| Bradford Idle VETS4PETS Limited | Professional & scientific | 2001 |
| Bramley VETS4PETS (Newco) Limited | Professional & scientific | 2015 |
| Bramley VETS4PETS Limited | Professional & scientific | 2001 |
| Brighouse VETS4PETS Limited | Professional & scientific | 2016 |
| Brighton VETS4PETS Limited | Professional & scientific | 2021 |
| Bristol Emerson Green VETS4PETS Limited | Professional & scientific | 2013 |
| Bristol Imperial VETS4PETS Limited | Professional & scientific | 2016 |
| Bristol Kingswood VETS4PETS Limited | Professional & scientific | 2013 |
| Bristol Longwell Green VETS4PETS Limited | Professional & scientific | 2017 |
| Bromsgrove VETS4PETS Limited | Professional & scientific | 2014 |
| Broomco (2817) Limited | Professional & scientific | 2002 |
| Buckingham VETS4PETS Limited | Professional & scientific | 2014 |
| Buckley Court (Handforth) Management Co. Limited | Households | 1981 |
| Bulwell VETS4PETS Limited | Professional & scientific | 2003 |
| Burscough VETS4PETS Limited | Professional & scientific | 2016 |
| Burton-On-Trent VETS4PETS Limited | Professional & scientific | 2004 |
| Bury ST Edmunds VETS4PETS Limited | Professional & scientific | 2011 |
| Bury VETS4PETS Limited | Professional & scientific | 2001 |
| Buttercup Bidco Limited | Hospitality | 2015 |
| Buttercup Topco Limited | Hospitality | 2015 |
| Byfleet VETS4PETS Limited | Professional & scientific | 2014 |
| Cactus Payroll Solutions Ltd | Professional & scientific | 2023 |
| Caerphilly VETS4PETS Limited | Professional & scientific | 2014 |
| Camborne VETS4PETS Limited | Professional & scientific | 2014 |
| Cannock VETS4PETS Limited | Professional & scientific | 2006 |
| Canterbury Sturry VETS4PETS Limited | Professional & scientific | 2015 |
| Cardiff ELY VETS4PETS Limited | Professional & scientific | 2014 |
| Cardiff Newport Road VETS4PETS Limited | Professional & scientific | 2014 |
| Cardiff TY Glas Vets for Pets Limited | Professional & scientific | 2026 |
| Carlisle VETS4PETS Limited | Professional & scientific | 2012 |
| Carmarthen VETS4PETS Limited | Professional & scientific | 2015 |
| Castleford VETS4PETS Limited | Professional & scientific | 2011 |
| Catterick VETS4PETS Limited | Professional & scientific | 2015 |
| CC (Beckton) Newco Limited | Professional & scientific | 2012 |
| CC (Belfast) Newco Limited | Professional & scientific | 2024 |
| CC (Bletchley) Newco Limited | Professional & scientific | 2025 |
| CC (Bournemouth) Newco 1A Limited | Professional & scientific | 2026 |
| CC (Bristol Filton) Newco Limited | Professional & scientific | 2024 |
| CC (Broadstairs) Newco Limited | Professional & scientific | 2009 |
| CC (Burgess Hill) Newco Limited | Professional & scientific | 2025 |
| CC (Cambridge) Newco Limited | Professional & scientific | 2023 |
| CC (Charlton) Newco Limited | Professional & scientific | 2026 |
| CC (Chippenham) Newco Limited | Professional & scientific | 2025 |
| CC (Christchurch) Newco Limited | Professional & scientific | 2025 |
| CC (Crawley) Newco 2 Limited | Professional & scientific | 2025 |