| Illumina Cambridge | Cambridge, Great Abington, Uttlesford | 40 | 20 |
| Siemens Healthcare Diagnostics | Camberley, Surrey, Surrey Heath | 4 | 9 |
| Becton Dickinson | Wokingham | 5 | 20 |
| Life Technologies | Paisley, Paisley | 4 | 35 |
| Scientific Laboratory Supplies | Hessle, Nottingham, East Riding of Yorkshire | 4 | 13 |
| Wolf Laboratories | York | 4 | 11 |
| Perkinelmer LAS | Beaconsfield | 4 | 7 |
| Promega | Southampton, Test Valley | 4 | 6 |
| Thermo Electron Manufacturing | Altrincham, Hemel Hempstead, Renfrew | 4 | 4 |
| Oxford Biosystems | Abingdon, Oxon | 4 | 3 |
| Randox Laboratories | Crumlin, Diamond Road Crumlin Northern | 4 | 4 |
| Bruker | Coventry | 3 | 18 |
| Grifols | London, Cambridge | 3 | 4 |
| Horiba | Northampton, Stanmore | 3 | 3 |
| Ortho Clinical Diagnostics | Bridgend, Marlow | 3 | 3 |
| Biomérieux | Basingstoke, Hampshire | 3 | 3 |
| Eurofins Biomnis | Wolverhampton, Hampshire | 3 | 3 |
| Sarstedt | Leicester | 3 | 3 |
| Roche Diagnostics | Burgess Hill | 4 | 13 |
| Bio Rad Laboratories | Watford | 4 | 11 |
| VWR | Lutterworth | 4 | 15 |
| Qiagen | Manchester | 4 | 11 |
| Sysmex | Milton Keynes | 4 | 7 |
| Hologic | Wythenshawe | 4 | 7 |
| Thermo Fisher Diagnostics | Altrincham, Milton Keynes | 4 | 4 |
| Don Whitley Scientific | Bingley | 4 | 5 |
| Una Health | Stoke on Trent | 4 | 2 |
| Abbott Rapid Diagnostics | Stockport | 4 | 4 |
| Thermofisher Scientific | Newport | 3 | 3 |
| Euroimmun | London, The Broadway Wimbledon London | 3 | 2 |
| Agena Bioscience | Hamburg | 3 | 2 |
| Quantumdx Group | Newcastle upon Tyne | 3 | 2 |
| Ausdiagnostics | Chesham | 3 | 3 |
| Bgi Genomics | London | 3 | 3 |
| Bioconnections | Wetherby, Market Place Wetherby | 3 | 3 |
| Cambridge Bioscience | Cambridge | 3 | 3 |
| Europlaz Technologies | Essex, Southminster | 3 | 3 |
| Genefirst | Abingdon | 3 | 3 |
| Greiner Bio One | Stonehouse, Stroud | 3 | 3 |
| Intertek Testing & Certification | Essex, Brentwood | 3 | 3 |
| Luminex Corporation | Texas | 3 | 3 |
| Oxford Immunotec | Abingdon, Oxon | 3 | 3 |
| Techno Path Distribution | Ballina | 3 | 3 |
| Carl Zeiss | Cambridge | 2 | 22 |
| Leica Microsystems | Cambridge, Milton Keynes | 2 | 16 |
| Beckman Coulter | High Wycombe | 2 | 15 |
| Abbott Laboratories | Maidenhead | 2 | 14 |
| Hamilton Sales & Service | Birmingham | 2 | 7 |
| Cepheid | Wooburn Green | 2 | 6 |
| Mast Group | Liverpool, Bootle | 2 | 4 |
| Werfen | Warrington | 2 | 3 |
| Diasorin | Blewbury | 2 | 9 |
| LGC Genomics | Middlesex, Teddington | 2 | 2 |
| Mornington 2000 | Harrogate | 2 | 2 |
| Binding Site Group | Birmingham | 2 | 2 |
| PCR Biosystems | Archway Road London, London | 2 | 2 |
| Ab Scientific | Sutton in Ashfield, London | 2 | 2 |
| Acarrier | Bradford, Thornton | 2 | 2 |
| Alpha Laboratories | Eastleigh | 2 | 2 |
| Altona Diagnostics | Liverpool | 2 | 2 |
| Biospyder Technologies | California, Carlsbad | 2 | 2 |
| Chirus | Watford | 2 | 2 |
| Clent Life Science | Stourbridge, West Midlands | 2 | 2 |
| Elitech | Berkhamsted, Milton Keynes | 2 | 2 |
| Exact Sciences | London | 2 | 2 |
| Fujirebio Europe | Berlin, Gent | 2 | 2 |
| Genetic Signatures | Newtown, Haywards Heath | 2 | 2 |
| Ibg Immucor | Birmingham, Solihull | 2 | 2 |
| Launch Diagnostics | Longfield, Reading | 2 | 2 |
| Lumiradx | London | 2 | 2 |
| Medical Wire & Equipment Co Bath | Wiltshire, Corsham | 2 | 2 |
| Medline Scientific | Chalgrove, Oxford | 2 | 2 |
| Microgen Bioproducts | Surrey, Camberley | 2 | 2 |
| Mobidiag | Slough | 2 | 2 |
| Nal Von Minden | Ticehurst, Moers | 2 | 2 |
| Natural History Museum Trading | London | 2 | 2 |
| Promake | London | 2 | 2 |
| Quanterix Corporation | Billerica | 2 | 2 |
| Quidel Ireland | Galway | 2 | 2 |
| Serosep | Crawley | 2 | 2 |
| Surescreen Diagnostics | Derby | 2 | 2 |
| Teva | Castleford | 3 | 19 |
| Tecan | Theale | 3 | 9 |
| Appleton Woods | Birmingham | 3 | 5 |
| Malvern Medical Developments | Worcester | 3 | 3 |
| Stratech Scientific | Ely | 3 | 2 |
| Amenarini Diagnostics | Wokingham | 3 | 3 |
| Bioserv | Cambridge | 3 | 3 |
| Cambridge Life Sciences | Ely | 3 | 3 |
| Healthlinked | Bathgate | 3 | 3 |
| Immensa Health Clinic | London | 3 | 3 |
| Mgi International Sales | Shek Mun | 3 | 3 |
| Oxford Nanopore Diagnostics | Oxford | 3 | 3 |
| V H Bio | Gateshead | 3 | 3 |
| Yourgene Health | Manchester | 3 | 3 |
| Fisher Scientific | Loughborough | 2 | 14 |
| Agilent Technologies | Abingdon | 2 | 4 |
| New England Biolabs | Hitchin | 2 | 5 |
| Bio Techne | Abingdon | 2 | 2 |
| Global Life Sciences Solutions Operations | Sheffield | 2 | 2 |