Outside Sales - Semi-Trailers

Chuck Oppedal

Semi-Trailer Sales Manager

(712) 363-6197

Chuck joined the Demco Semi-Trailer Sales Team in February of 2021. Chuck’s transportation, manufacturing, and plant management background will help him succeed for Demco’s customers. Chuck hails from Spencer, Iowa, just minutes from the factory. Chuck will be found traveling with sales territory managers throughout the country, visiting dealers, prospecting new dealers, working at shows, and jumping in to help wherever else he is needed. Chuck covers the eastern and southeastern US for dealers, customers, Canada, and Mexico.

Brian Tonniges (ST)

Semi-Trailers Territory Manager // Kansas

308-390-1400

Brian joined Demco in 2001 with a background of farming, trucking, and retail sales experience. Joined together these make Brian the total package for his position. A personality that is very approachable and adaptable to every situation makes for a team member who is known for his communication abilities. A broad back ground with a solid practical understanding of the industry brings an objective view to the table for helping to guide us into the future.

Matt Gibbs

Semi-Trailers Territory Manager // Western US

(712) 699 – 4291

Matt joined our Semi-Truck Sales Team in August 2022. He covers the states of Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, and Wyoming. Matt hails from Northern Utah, which provides him with excellent access to and coverage of western territory. He has a long history in trailer component sales and trailer sales in the western states. Matt's drive and customer service experience will serve the dealers and customers very well.

Gary Klarenbeek

Semi Trailers Territory Manager // Midwest

(605) 366-5634

Gary joined the Demco Semi-Trailer Sales Team in June of 2022. Gary covers Iowa, Minnesota, Nebraska, North Dakota, South Dakota, and Wisconsin. Gary hails from Inwood, IA. Gary has had a long and prosperous history with Demco, starting in the factory at a young age and working with Demco printing for many years. Gary’s 30 plus years of sales experience and love of cold calling will serve dealers and customers well.

Davis Northcutt

Sales Territory Manager Southern Territory

(712) 578 6631

Davis joined the Demco Semi-Trailer Sales Team in September 2025, hailing from Dallas, TX. Davis covers Arkansas, Louisiana, Missouri, New Mexico, Oklahoma, and Texas. Davis has several years of inside sales distribution history working closely with dealers and sales reps throughout the U.S. Davis is already very familiar with the products, people, and processes within Demco, which allows him to hit the ground running and add value from day one.

Jeff Wymer

Sales Territory Manager Eastern Midwest Territory

(712) 578 - 2919

Jeff joined the Demco Semi-Trailer Sales Team in September 2025. He hails from southern Wisconsin and covers Illinois, Indiana, Kentucky, Michigan, Ohio, and Tennessee. Jeff has a long-tenured and experienced sales background, having grown up and resided in farm country. His experience in agricultural and other equipment leads him well into dealer and customer relationships.