| Deloitte | London, Greater London | 11 | 122 |
| Allen Lane | London, Westminster | 30 | 45 |
| Bramble Hub | Lambeth, London | 25 | 18 |
| Robertson Bell | London, Camden | 37 | 5 |
| Hunter Healthcare Resourcing | Cotswold, London, Chipping Campden | 13 | 13 |
| Innova Medical Group | Monrovia, Pasadena, California | 12 | 12 |
| Ernst & Young | Southwark, London | 10 | 89 |
| PA Consulting Services | Westminster, London | 10 | 54 |
| Accord | Devon, Barnstaple | 10 | 21 |
| Mckinsey | Westminster, London | 8 | 37 |
| Life Technologies | Renfrew, Paisley, Inchinnan | 8 | 35 |
| IRG Advisors | Odgers Berndtson, London, City of London | 5 | 6 |
| Vertical Pharma Resources | West Molesey, Surrey, Elmbridge | 4 | 4 |
| Michael Page Page Group | Weybridge | 29 | 29 |
| Accenture | London, City of London | 12 | 30 |
| VWR | Lutterworth | 8 | 15 |
| Abbott Laboratories | Maidenhead | 6 | 14 |
| Randox Laboratories | Antrim and Newtownabbey, Ardmore, Crumlin | 5 | 5 |
| IBM | Portsmouth, Hants | 4 | 34 |
| Aventis Pharma | Reading, Thames Valley Park Drive | 4 | 4 |
| BJSS | Leeds | 3 | 23 |
| Dac Beachcroft | London, City of London, Leeds | 3 | 6 |
| Sigma Pharmaceuticals | Watford | 3 | 8 |
| NHS Shared Business Services | Hemel Hempstead, Leeds, Tingley nr Wakefield | 3 | 5 |
| Brake Bros | Ashford, Kent | 3 | 4 |
| Mawdsley Brooks | Manchester, Salford | 3 | 4 |
| Sharpe Pritchard | Elm Yard, London | 3 | 3 |
| Converging Solutions | Alcester, Warwickshire | 3 | 3 |
| Air Charter Service | Surbiton, Kingston upon Thames | 25 | 2 |
| Gowling WLG | London | 19 | 6 |
| Fresenius Kabi | Runcorn | 12 | 13 |
| Michael Page | Runnymede | 9 | 4 |
| Computacenter | Hatfield | 8 | 118 |
| Burges Salmon | Bristol | 8 | 7 |
| Kent Pharma | Heathrow | 8 | 8 |
| Merck Sharpe & Dohme | London, Moorgate | 8 | 8 |
| Dla Piper | City of London | 6 | 16 |
| Scientific Laboratory Supplies | Hessle | 6 | 13 |
| Softcat | Marlow, Leeds | 5 | 176 |
| Networkers | Parkway | 5 | 3 |
| Pro Lab Diagnostics | Merseyside, Wirral | 5 | 3 |
| Piramal Critical Care | Uxbridge | 5 | 2 |
| Uniserve | Essex, Tilbury | 5 | 12 |
| Phoenix Healthcare | Runcorn | 5 | 5 |
| Pricewaterhousecoopers | London, Southwark | 4 | 75 |
| Mason Advisory | London, North West Wing | 4 | 7 |
| Maxxima | London, Broxbourne | 4 | 4 |
| 4C Associates | Hammersmith and Fulham, The Kensington Centre | 4 | 4 |
| Abbott Rapid Diagnostics | Stockport | 4 | 4 |
| Kuehne Nagel | Uxbridge | 4 | 4 |
| Russell Reynolds Associates | London, Westminster | 4 | 4 |
| Tanner Pharma | St Albans | 4 | 4 |
| Methods Business & Digital Technology | London, Camden | 3 | 40 |
| Pfizer | Kent, Sandwich | 3 | 24 |
| BFS Group | Slough | 3 | 16 |
| Morgan Hunt | London, London Wall | 3 | 14 |
| Bunzl Healthcare | Isleworth | 3 | 11 |
| BAE Systems Applied Intelligence | London, Guildford | 3 | 9 |
| Randstad Solutions | Luton | 3 | 9 |
| Hamilton Sales & Service | Birmingham | 3 | 7 |
| RSM UK Consulting | London | 3 | 8 |
| Sheffield University | Sheffield | 3 | 7 |
| Clifford Chance | Tower Hamlets, London | 3 | 5 |
| Bowmed Ibisqus | Manchester, Wrexham | 3 | 6 |
| Bio Products Laboratory | Elstree, Hertsmere | 3 | 3 |
| Insight Executive Group | London | 3 | 4 |
| Red Snapper Recruitment | London | 3 | 4 |
| Seqirus | Maidenhead | 3 | 3 |
| Phoenix Healthcare Distribution | Runcorn | 3 | 2 |
| Nutricia | Trowbridge | 3 | 2 |
| Pharmaceuticals Direct | Loughton | 3 | 2 |
| Biodot | West Sussex, Chichester | 3 | 3 |
| Channel 3 Consulting | Richmond upon Thames, London | 3 | 3 |
| Huma Therapeutics | London, Millbank | 3 | 3 |
| Ips Pharma | Surrey, Elmbridge | 3 | 3 |
| Law Morgan | Westminster | 3 | 3 |
| Methods Analytics | London | 3 | 3 |
| Nutricia Ireland | North Wall Quay | 3 | 3 |
| Opalion Plastics | Hedfordshire, Baldock | 3 | 3 |
| Oxford University Innovation | Oxford | 3 | 3 |
| Paramount Packaging Systems | Fleet, Hampshire | 3 | 3 |
| Program Planning Professionals | City of London, London | 3 | 3 |
| Seymour John Public Services North | Warrington | 3 | 3 |
| Surescreen Diagnostics | Derbyshire, Derby | 3 | 3 |
| KPMG | London, The Embankment | 2 | 102 |
| Kainos Software | Belfast | 2 | 16 |
| NCC Group Security Services | Manchester | 2 | 11 |
| Investigo | London | 2 | 22 |
| Bio Rad Laboratories | Hemel Hempstead, Watford | 2 | 11 |
| Egress Software Technologies | London, The White Collar Factory | 2 | 6 |
| Morningside Pharmaceuticals | Loughborough | 2 | 5 |
| Hfa Healthcare Products | Birmingham | 2 | 9 |
| Butyl Products | Billericay, Essex | 2 | 6 |
| 2020 Delivery | London, Westminster | 2 | 3 |
| Ballicom | Coventry, Conventry | 2 | 3 |
| Astrazeneca | Cambridge | 2 | 3 |
| Jigsaw Systems | Companies, Nottingham | 2 | 3 |
| Alliance Healthcare Distribution | Chessington, Surrey | 2 | 2 |
| Qualtrics LLC | Provo | 2 | 2 |
| Prestige Network | Newbury | 2 | 2 |