Gus Attridge co-founded Aspen Pharmacare with Stephen Sadd in 1997. He was the Deputy CEo and therefore owns a 4% stake in the company. Today Aspen Pharmacare is the fifth largest generic drugmaker in the world. It went through a massive expansion in 2013 to turn the company into an even biggest powerhouse. Aspen Pharmacare now has factories all over the world including in Australia, Brazil, Germany, Mexico and South Africa.