Martz is a part of the Trailways Transportation System, a network of approximately 70 independent bus companies.

Martz Group operates the Gold Line commuter service and Gray Line sightseeing service in Washington, D.C.. Martz operates the National Coach Works in Virginia, and the First Class Coach Company Trailways serving Tampa and St. Petersburg in Florida.

Martz Bus operates two Amtrak Thruway Connecting Service lines in Florida and Pennsylvania.

[4] Martz Trailways operates limited bus service from Wilkes-Barre, Scranton, and the Pocono Mountains to the Atlantic City casinos and Wind Creek Bethlehem.

The buses to Atlantic City provide daily service from Downtown Wilkes-Barre, the Wyoming Valley Mall, and Scranton.

The buses to Wind Creek Bethlehem provide service on Thursdays and the last Sunday of the month from Downtown Wilkes-Barre, the Wyoming Valley Mall, Scranton, and Mt.

[5] Up until April 2021, National Coach Works provided commuter bus service from the Fredericksburg area to Washington, D.C.[12] The National Coach Works also operates two commuter routes under contract with the Maryland Transit Administration that connect Southern Maryland with Washington, D.C., Route 705 connects the Charlotte Hall Shopping Center in Charlotte Hall and the Mattawoman-Beantown park and ride in Waldorf with Washington, D.C., and the Route 715 connects the Golden Beach park and ride in Charlotte Hall and the Mattawoman-Beantown park and ride in Waldorf with Washington, D.C.[13][14] There is also charter bus service offered by the National Coach Works, serving Fredericksburg, Richmond, and Washington, D.C.[15] Martz Group operates the First Class Coach Company Trailways serving Tampa and St.

It operates the Amtrak Thruway route from Philadelphia's 30th Street Station to Wilkes Barre / Scranton via Allentown.

Ownership of the company remains within the family, with Scott Henry of the fourth generation currently President of Martz Group.