336 (Transportation Equipment Manufacturing)

Timpte moved its Lincoln, NE operations from 3400 West O Street, to our new 190,000 square foot facility in April of 2025. This new facility houses the operations of our Thunderstone Manufacturing, LLC. and equipment trailer product lines, along with serving as our National Parts Distribution Center.

Shell Valley has continued to be the leader in kit car replicas because of our dedicated and talented staff and our thousands of satisfied, loyal customers. We also produce custom fiberglass products such as: race car roofs, go-kart bodies, water tanks, airboats, vent hoods, building roof panels, tractor radiator shells, and many more.

Speedway Motors manufacturers automobile replacement parts in their 77,000 square foot facility.

Greenbrier Rail Services manufacturers railroad equipment products.

Since 1980, we have been an industry leader in manufacturing the finest custom built motorcoaches and trailers. Our distinct and innovative designs provide image and impact for all of our customers.

Apache Industries, Inc. is engaged in manufacturing Ag equipment and products.

Timpte’s sole focus is designing and building trailers for any dry bulk commodity. Our trailers are light and dependable, and we custom-build each one to make sure it does its job right. We’re a company founded on innovating transportation to help people move materials more efficiently and more effectively. Headquartered in David City, Nebraska, we take our Midwestern roots seriously, applying solid manufacturing principles and state-of-the-art technology to produce the industry’s best dry bulk commodity trailers.

Duncan Aviation is an FAA Certified Repair Station with an Airframe Class 1, 3 & 4 rating. In addition to being authorized to provide service for airframe maintenance events, teams are supported with extensive back shop capabilities, allowing Duncan Aviation to provide tip to tail service for all maintenance activities. Duncan also provides contract manufacturing capabilities from prototype to production. Duncan excels in job shop work, delivering high-quality precision parts tailored to complex specifications.

Thunderstone is one of North America’s largest producers of tarps and automated containment systems, and its products are sold and serviced through an extensive distribution network. Thunderstone is a privately-owned company in a state-of-the-art manufacturing facility over 50,000 square feet located in America’s Heartland, Lincoln, Nebraska.

Tri-Con Industries, Ltd. is primarily engaged in manufacturing motorcycles, bicycles, and similar equipment, and parts.

Smeal Sfa, Llc is primarily engaged in manufacturing aeriel ladders for fire truck applications.