Jack Fridge, president of Denham Springs, La.-based Livingston Waste / Express Waste Solutions and Waste360’s youngest 40 Under 40 award recipient, started his company at the young age of 17. Over the past two years, 24-year-old Fridge has built up his company from 585 customers to more than 20,000 customers in Livingston Parish, Tangipahoa Parish and St. Tammany Parish.