| 1 (209) | Analysis Group Inc | USA |  |
| 2 (292) | Merck & Co Inc, United States | USA | |
| 3 (309) | Novartis Pharmaceuticals, United States | USA | |
| 4 (319) | Sanofi, United States | USA | |
| 5 (387) | Takeda Pharmaceuticals International Inc, USA | USA | |
| 6 (396) | Janssen Biotech Inc | USA | |
| 7 (460) | Pfizer Inc, United States | USA | |
| 8 (473) | RTI International, United States | USA | |
| 9 (884) | GlaxoSmithKline, United States | USA | |
| 10 (1185) | RTI Health Solutions, United States | USA | |
| 11 (1300) | AstraZeneca, United States | USA | |
| 12 (2125) | Eli Lilly and Company, United States | USA | |
| 13 (2215) | ICF International Inc | USA | |
| 14 (2625) | Optum Inc, USA | USA | |
| 15 (2689) | Genentech Inc | USA | |
| 16 (2809) | Abt Associates Inc | USA | |
| 17 (3027) | Hoffmann-La Roche Ltd, United States | USA | |
| 18 (3117) | General Dynamics Information Technology | USA | |
| 19 (3302) | IQVIA, United States | USA | |
| 20 (3365) | Bristol-Myers Squibb Company, United States | USA | |
| 21 (3457) | General Dynamics Co, USA | USA | |
| 22 (3794) | Gilead Sciences Inc, United States | USA | |
|
