This is a list of manufacturers and suppliers of pharmaceuticals with operations in the United Kingdom. Note: the activities of the parent companies of many of the companies listed below are not restricted solely to the United Kingdom. For example, AstraZeneca and GlaxoSmithKline, although headquartered in the United Kingdom, have activities in numerous other countries, and Johnson & Johnson and Pfizer are both headquartered in the United States and have activities in many countries worldwide. Brand name of company – formal registered title of company