OnTrac is a courier and delivery service that specializes in overnight and time-critical deliveries. The company was founded in 1991 and has since grown to become one of the largest regional package delivery companies in the United States. OnTrac offers a range of services, including same-day delivery, next-day delivery, and two-day delivery, and serves customers in Arizona, California, Nevada, Oregon, Utah, and Washington. The company is committed to providing its customers with fast, reliable, and cost-effective delivery solutions, and has built a reputation for excellence in the industry.