Terminix Service Inc., an independent Columbia businesses licensed by Terminix International, has several new leaders. Tom Fortson, who served as president and chief operating officer for more than 25 years, is now vice chairman of the board of directors. Scott Fortson, previously vice president of operations and Lowcountry region manager, has been named president and COO. Trevor Knox has been promoted to vice president of sales and marketing. Knox will oversee coordinating sales development within the company. Rion Cobb has been named vice president of human services and will oversee human resources, payroll training and technical departments.