On-Site Fuel Service provides truck-to-truck fueling services to fleet operators throughout the Southeast United States. The company services approximately 150 accounts in 10 states with more than 30 fuel trucks. Its clients include the United States Postal Service, Federal Express and Yellow Freight. On-Site is also a pioneer in digital data collection for fleet fueling. To ensure accurate cataloging, customer vehicles are pre-tagged with a small bar coded label. The company s fueling professionals identify the vehicle using a handheld data collection device before fueling begins. Once the vehicle is full, the amount and type of fuel are captured by the handheld device. On-Site was founded in 1996 and maintains headquarters in Brandon, Miss.