| Becton Dickinson | Wokingham, Oxford, Erembodegem | 37 | 20 |
| Becton Dickinson Infusion Therapy | Wokingham | 3 | 4 |
| Becton Dickinson Biosciences | Wokingham | 2 | 2 |
| Becton Dickinson Dispensing | Berkshire, St Albans | 2 | 2 |
| Becton Dickinson CME | Blackpool | 2 | 2 |
| Becton Dickinson UK LT | Wokingham | 1 | 1 |
| Sarstedt | Leicester, Beaumont Leys, Leics | 8 | 8 |
| Fannin | Swadlincote, Belfast, Northamptonshire | 6 | 18 |
| Vygon | Swindon, Wilts | 6 | 6 |
| Life Technologies | Paisley, Paisley | 6 | 35 |
| Scientific Laboratory Supplies | Nottingham, Hessle, East Riding of Yorkshire | 6 | 13 |
| Promega | Southampton, Test Valley | 6 | 6 |
| Greiner Bio One | Stonehouse, Stroud | 6 | 6 |
| Illumina Cambridge | Cambridge, Great Abington, Granta Park Great Abington | 5 | 20 |
| Smiths Medical | Ashford, Kent | 4 | 7 |
| Siemens Healthcare Diagnostics | Camberley, Surrey, Surrey Heath | 4 | 9 |
| Cardinal Health UK 432 | High Wycombe, London, Bucks | 4 | 5 |
| Owen Mumford | Woodstock, Chipping Norton | 4 | 2 |
| Roche Diagnostics | Burgess Hill | 6 | 13 |
| Bio Rad Laboratories | Watford, Hemel Hempstead | 6 | 11 |
| VWR | Lutterworth | 6 | 15 |
| Qiagen | Manchester, Crawley | 6 | 11 |
| Cambridge Bioscience | Cambridge | 5 | 5 |
| Beckman Coulter | High Wycombe | 4 | 15 |
| Bard | Crawley | 4 | 7 |
| Wolf Laboratories | York | 4 | 11 |
| Perkinelmer LAS | Beaconsfield | 4 | 7 |
| Thermo Electron Manufacturing | Altrincham, Hemel Hempstead, Renfrew | 4 | 4 |
| Oxford Biosystems | Abingdon, Oxon | 4 | 3 |
| PCR Biosystems | London, Archway Road London | 4 | 2 |
| Alpha Laboratories | Eastleigh | 4 | 4 |
| Randox Laboratories | Crumlin, Diamond Road Crumlin Northern | 4 | 4 |
| Techno Path Distribution | Ballina, Tipperary | 4 | 4 |
| Bruker | Coventry | 3 | 18 |
| Grifols | London, Cambridge | 3 | 4 |
| Horiba | Northampton, Stanmore | 3 | 3 |
| Ortho Clinical Diagnostics | Bridgend, Marlow | 3 | 3 |
| Terumo | Bagshot, Surrey | 3 | 4 |
| Sisk Healthcare | Howth Junction Business Centre, Lucan-Esker ED, County Dublin | 3 | 3 |
| Biomérieux | Basingstoke, Hampshire | 3 | 3 |
| Eurofins Biomnis | Wolverhampton, Hampshire | 3 | 3 |
| Inomed Health | Elland, Halifax | 3 | 3 |
| Mermaid Medical | Merseyside, Formby | 3 | 3 |
| Prosys | Hove, Wimbledon | 3 | 3 |
| Stratech Scientific | Ely | 5 | 2 |
| Fisher Scientific | Loughborough | 4 | 14 |
| Sysmex | Milton Keynes | 4 | 7 |
| Hologic | Wythenshawe | 4 | 7 |
| Thermo Fisher Diagnostics | Altrincham, Milton Keynes | 4 | 4 |
| Don Whitley Scientific | Bingley | 4 | 5 |
| New England Biolabs | Hitchin | 4 | 5 |
| Una Health | Stoke on Trent | 4 | 2 |
| Bio Techne | Abingdon | 4 | 2 |
| Abbott Rapid Diagnostics | Stockport | 4 | 4 |
| Abcam | Cambridge | 4 | 4 |
| Gbuk | Selby | 3 | 8 |
| Thermofisher Scientific | Newport | 3 | 3 |
| Philips Electronics | Guildford | 3 | 3 |
| Cellpath | Edinburgh, Newtown | 3 | 2 |
| Euroimmun | London, The Broadway Wimbledon London | 3 | 2 |
| Ims Euro | Stockport | 3 | 3 |
| Agena Bioscience | Hamburg | 3 | 2 |
| Quantumdx Group | Newcastle upon Tyne | 3 | 2 |
| Rocket Medical | Watford | 3 | 2 |
| Ausdiagnostics | Chesham | 3 | 3 |
| Bgi Genomics | London | 3 | 3 |
| Bioconnections | Wetherby, Market Place Wetherby | 3 | 3 |
| Blue Box Medical | Southampton | 3 | 3 |
| Change Healthcare UK Holdings | London | 3 | 3 |
| Europlaz Technologies | Essex, Southminster | 3 | 3 |
| Genefirst | Abingdon | 3 | 3 |
| Genx Medicare | Huddersfield | 3 | 3 |
| Intertek Testing & Certification | Essex, Brentwood | 3 | 3 |
| Luminex Corporation | Texas | 3 | 3 |
| Oxford Immunotec | Abingdon, Oxon | 3 | 3 |
| Carl Zeiss | Cambridge | 2 | 22 |
| Baxter Healthcare | Thetford, Belfast | 2 | 16 |
| Leica Microsystems | Cambridge, Milton Keynes | 2 | 16 |
| Abbott Laboratories | Maidenhead | 2 | 14 |
| B Braun Medical | Sheffield | 2 | 12 |
| Hamilton Sales & Service | Birmingham | 2 | 7 |
| Hospital Services | Northern, Belfast | 2 | 8 |
| Cepheid | Wooburn Green | 2 | 6 |
| Mast Group | Liverpool, Bootle | 2 | 4 |
| Crest Medical | Warrington | 2 | 4 |
| Aah Pharmaceuticals | Coventry | 2 | 3 |
| Bunzl Retail & Healthcare Supplies | London | 2 | 3 |
| Werfen | Warrington | 2 | 3 |
| Diasorin | Blewbury | 2 | 9 |
| Henleys Medical Supplies | Herts, Welwyn Garden City | 2 | 3 |
| LGC Genomics | Middlesex, Teddington | 2 | 2 |
| Mornington 2000 | Harrogate | 2 | 2 |
| Unisurge | Newmarket | 2 | 2 |
| Valley Northern | Stafford | 2 | 2 |
| Ypsomed | Escrick | 2 | 2 |
| Henry Schein UK Holdings | Gillingham | 2 | 3 |
| Binding Site Group | Birmingham | 2 | 2 |
| Orion Medical Supplies | Bicester, Oxon | 2 | 2 |
| Ab Scientific | Sutton in Ashfield, London | 2 | 2 |
| Acarrier | Bradford, Thornton | 2 | 2 |