| Fisher Scientific | Loughborough, Charnwood, Leicestershire | 35 | 14 |
| Thermo Fisher Scientific | Hemel Hempstead, Halton, Loughborough | 21 | 11 |
| Thermo Fisher Scientific Baltics Uab | Vilnius | 2 | 2 |
| Thermo Fisher Scientific Life Technologies | Paisley | 2 | 2 |
| Oxoid Part of Thermo Fisher Scientific | Basingstoke | 1 | 1 |
| Thermo Fisher Scientific LPG | Hemel Hempstead | 1 | 1 |
| Thermo Fisher Scientific Messtechnik | Erlangen | 1 | 1 |
| VWR | Lutterworth, Harborough, Leicestershire | 13 | 15 |
| Scientific Laboratory Supplies | Nottingham, East Riding of Yorkshire, Hessle | 11 | 13 |
| Appleton Woods | Birmingham, Appleton Woods, Borehamwood | 9 | 5 |
| Merck Life Science | Gillingham, Dorset | 7 | 7 |
| Sarstedt | Leicester, Bridge of Weir | 7 | 7 |
| Wolf Laboratories | York, Pocklington, East Riding of Yorkshire | 6 | 11 |
| Life Technologies | Paisley, Paisley | 7 | 35 |
| Roche Diagnostics | Burgess Hill, Mountain View | 7 | 13 |
| Bio Rad Laboratories | Watford, Hemel Hempstead | 7 | 11 |
| Promega | Southampton, Test Valley | 7 | 6 |
| Qiagen | Crawley, Manchester | 7 | 11 |
| Cambridge Bioscience | Cambridge | 6 | 6 |
| Greiner Bio One | Stonehouse, Stroud | 6 | 6 |
| Agilent Technologies | Winnersh, London, Cheadle | 5 | 4 |
| PCR Biosystems | London, Archway Road London | 5 | 2 |
| New England Biolabs | Hitchin | 6 | 5 |
| Bio Techne | Abingdon | 6 | 2 |
| Becton Dickinson | Wokingham | 5 | 20 |
| Beckman Coulter | High Wycombe | 5 | 15 |
| Alpha Laboratories | Eastleigh | 5 | 5 |
| Tecan | Theale, Reading | 4 | 9 |
| Miltenyi Biotec | Bisley, Woking | 4 | 3 |
| Labtech | Uckfield, Heathfield | 4 | 3 |
| Eurogentec | Southampton Hampshire, Southampton | 4 | 3 |
| Cellpath | Edinburgh, Newtown | 4 | 2 |
| Illumina Cambridge | Cambridge, Granta Park Great Abington, Great Abington | 3 | 20 |
| Siemens Healthcare Diagnostics | Camberley, Surrey, Surrey Heath | 3 | 9 |
| Oxford Biosystems | Abingdon, Oxon | 3 | 3 |
| Avidity Science | Long Crendon, Long Crendon Ind Est, Aylesbury | 3 | 2 |
| Labmode | Borehamwood, Centennial Pa | 3 | 3 |
| Randox Laboratories | Crumlin, Diamond Road Crumlin Northern | 3 | 3 |
| Sciquip | Coalville, North West Leicestershire, Wood Norton | 3 | 3 |
| Stratech Scientific | Ely | 5 | 2 |
| VH Bio | Gateshead | 4 | 2 |
| Tecrea | London | 4 | 2 |
| Abcam | Cambridge | 4 | 4 |
| Ams Biotechnology Europe | Abingdon | 4 | 4 |
| Anachem Mettler Toledo | Leicester | 4 | 4 |
| Biolegend | London | 4 | 4 |
| Cambio | Cambridge | 4 | 4 |
| Eppendorf | Stevenage | 4 | 4 |
| Formedium | Hunstanton | 4 | 4 |
| Li Cor | Cambridge | 4 | 4 |
| MP Biomedicals Sarl | Illkirch | 4 | 4 |
| Newmarket Scientific | Kennett | 4 | 4 |
| Starlab | Milton Keynes | 4 | 4 |
| Stemcell Technologies Sarl | Grenoble | 4 | 4 |
| Thistle Scientific | Glasgow | 4 | 4 |
| Sysmex | Milton Keynes | 3 | 7 |
| Hologic | Wythenshawe | 3 | 7 |
| Thermo Electron Manufacturing | Altrincham, Hemel Hempstead | 3 | 4 |
| Thermo Fisher Diagnostics | Altrincham, Milton Keynes | 3 | 4 |
| Don Whitley Scientific | Bingley | 3 | 5 |
| Una Health | Stoke on Trent | 3 | 2 |
| Generon | Maidenhead | 3 | 3 |
| Enzo Life Sciences | Exeter | 3 | 2 |
| Takara Bio Europe Sas | Avenue President Kennedy | 3 | 2 |
| Abbott Rapid Diagnostics | Stockport | 3 | 3 |
| Gilson | Luton | 3 | 3 |
| Medline Scientific | Chalgrove | 3 | 3 |
| Peprotech | Hammersmith | 3 | 3 |
| Primerdesign | Chandlers Ford | 3 | 3 |
| Leica Microsystems | Cambridge, Milton Keynes | 2 | 16 |
| Hamilton Sales & Service | Birmingham | 2 | 7 |
| Perkinelmer LAS | Beaconsfield | 2 | 7 |
| Grifols | Cambridge, London | 2 | 4 |
| Ortho Clinical Diagnostics | Bridgend, Marlow | 2 | 3 |
| Thermofisher Scientific | Newport | 2 | 3 |
| Eo Laboratories | Bonnybridge | 2 | 2 |
| Euroimmun | London, The Broadway Wimbledon London | 2 | 2 |
| LGC Genomics | Middlesex, Teddington | 2 | 2 |
| Mornington 2000 | Harrogate | 2 | 2 |
| Agena Bioscience | Hamburg | 2 | 2 |
| Quantumdx Group | Newcastle upon Tyne | 2 | 2 |
| Vector Laboratories | Peterborough | 2 | 2 |
| Acarrier | Bradford, Thornton | 2 | 2 |
| Ausdiagnostics | Chesham | 2 | 2 |
| Bgi Genomics | London | 2 | 2 |
| Bioconnections | Market Place Wetherby, Wetherby | 2 | 2 |
| Biomérieux | Basingstoke, Hampshire | 2 | 2 |
| Biospyder Technologies | California, Carlsbad | 2 | 2 |
| Clent Life Science | Stourbridge, West Midlands | 2 | 2 |
| Eurofins Biomnis | Wolverhampton | 2 | 2 |
| Europlaz Technologies | Essex, Southminster | 2 | 2 |
| Exact Sciences | London | 2 | 2 |
| Fujirebio Europe | Berlin, Gent | 2 | 2 |
| Genefirst | Abingdon | 2 | 2 |
| Gpe Scientific | Central Bedfordshire, Leighton Buzzard | 2 | 2 |
| Hfa Healthcare | Hampton in Arden, Midlands | 2 | 2 |
| Ibg Immucor | Birmingham, Solihull | 2 | 2 |
| Intertek Testing & Certification | Brentwood, Essex | 2 | 2 |
| Larova | Jena | 2 | 2 |
| Luminex Corporation | Texas | 2 | 2 |