David Allen also founder of ADAllen Pharma, the parent company of SunVit-D3 has played a fundamental role in the company's success, overseeing its assured progress from a national operation to a major international supplier. A fellow of the Royal Pharmaceutical Society of Great Britain, where he has served as both vice president and treasurer, David has chaired a number of standing committees and is a leading voice for the enforcement of high professional standards within the industry.