Biotech/Healthcare George N. Hatsopoulos Greece Thermo Fischer Scientific Ranked 144 in 2018 Fortune 500 José Navarro, Sr. Cuba Navarro Discount Pharmacies Kiran Patel Zambia WellCare Health Plans Ranked 170 in the 2018 Fortune 500 Charles Pfizer Germany Pfizer Inc. Ranked 57 in the 2018 Fortune 500 Ivor Royston England Biogen Ranked 245 in the 2018 Fortune 500 Josef von Rickenbach Switzerland PAREXEL Charles Weissmann Switzerland Biogen Ranked 245 in the 2018 Fortune 500
