Pacific Tugboat Service is an event sponsor and service provider of choice to Big Bay Boom, the annual Independence Day fireworks display in San Diego, California. The event has been put on since 2001. It is one of the largest annual fireworks displays in the United States. Pacific Tugboat Service provides more Independence Day tug and barge services along the coast and in the harbors of southern California than any other company. PTS provides the same support throughout the year.