Established over 30 years ago, Dennis Parking Lot Maintenance Inc. (DPLM) specializes in the marking and maintenance of parking lots and areas. Based in Des Moines, Ill., the company offers a wide range of products and services, including divisions of durable markings, permanent markings, highway striping, parking lot striping, airport striping as well as line removals, to name a few. Dennis Parking Lot Maintenance Inc. works in association with AGC (Associated General Contractors of America), ATSSA (American Traffic Safety Services Association) and APAI (Asphalt Paving Association of Iowa).