Pfizer, Inc. is a research-based, global biopharmaceutical company, which engages in the manufacture of vaccines and injectable biologic medicines. In 1849, with $2,500 borrowed from Charles Pfizer's father, cousins Charles Pfizer and Charles Erhart, young entrepreneurs from Germany, open Charles Pfizer & Company as a fine-chemicals business. A modest red-brick building in the Williamsburg section of Brooklyn, New York, serves as office, laboratory, factory, and warehouse. In 2013, Pfizer announces plans to move forward to internally separate its commercial operations into three business segme
