Grease Masters LLC, based in St. Charles, Missouri, a suburb of St. Louis, lives up to its name. The company collects about 1.1 million gallons of grease a year, mostly from restaurants and commercial kitchens, and also recycles cooking oil (yellow grease) to generate an additional revenue stream.Owned by John and Pam Remstedt, the company also cleans municipal sewer lines, provides back-of-house restaurant services (such as cleaning exhaust hoods and inspecting and maintaining fire-suppression systems) and offers industrial cleaning and power-washing services. About 90 percent of the company’s revenues come from grease-related operations.Pumpers interested in diversifying their services should take
