Quality Assurance System Supervisor, Quality Assurance System Specialist and Field Sales Representatives Job Vacancies at The Wrigley Company  in Kenya 2014     The Wrigley Company is the world’s largest manufacturer of chewing gum. A subsidiary of the MARS Incorporated Company, a global leader in the chocolate and pet-food categories and one of the largest privately owned businesses. At Wrigley, we love what we do and are passionate about our people. People in over 150 countries enjoy our brands everyday. Our ...