What are the opening hours?

Monday 8am - 4:30pm Tuesday 8am - 4:30pm Wednesday 8am - 4:30pm Thursday 8am - 4:30pm Friday 8am - 4:30pm

Demco - Dethmers Mfg. Company

Name: Demco - Dethmers Mfg. Company
Address: 4010 320th Street, Boyden, IA, 51234, US
Telephone: (800) 543-3626
Price range: $$$

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Boyden, IA
Demco - Dethmers Mfg. Company

Our new vision is not only to enter and sustain, but to flourish in today’s new, ever-changing global marketplace.

Built To Move
For over 50 years Demco has used the phrase “Doing our Best to Provide You the Best” to describe our commitment to customers, suppliers, co-workers and management in our ongoing quest for excellence. Our Products & Brands
Agriculture Products
RV Towing Products
Trailer Products

Doing Our Best to Provide You the Best
For over 50 years Demco has used the phrase “Doing our

Best to Provide You the Best” to describe our commitment to customers, suppliers, co-workers and management in our ongoing quest for excellence. With our continued focus on family, team, quality and customer service, we will strive to fulfill this vision with a firm conviction that our effort spent today will continue to bring rewards in the future. Our History
Back in 1950, Robert Dethmers started Dethmers Manufacturing Company in a corner of an implement dealership. One of his first products was fertilizer application equipment for the agricultural industry. Since the beginning, Demco has pursued a dream to fill needs, provide solutions, and compete in an existing marketplace. From Agriculture to Towing to Brake manufacturing, Demco has earned its place with the right combination of skill and technology needed to produce the best products available without compromise. Today, as Demco continues to grow, our tradition of building quality products, employing talented, industrious people and providing attentive service remains. Our sales staff, along with our dealers and distributors across the United States, Canada and the world, carry on the standard. We enjoy long-term relationships with our clients and look forward to this continuum with our new clients.

05/25/2026

This Memorial Day, we remember and honor the men and women who gave their lives in service to our country.
From all of us at Demco, we are grateful for their sacrifice. 🇺🇸

05/22/2026

Excited to sign on two welders from Spencer High School through the Extended Career Experience, and congratulations to two of our scholarship recipients:

Josh Voss - completed the Extended Career Experience (ECE) from Spencer High School with Demco and was hired on as a full-time Welder

Tate Zinn - completed the Extended Career Experience (ECE) from Spencer High School with Demco and was hired on as an intern for the summer, before going to school in the fall for his welding certification

Tate Mertens - He received the Demco Manufacturing Scholarship for pursuing a career in Engineering. He graduated from Okoboji High School and will be going into Mechanical Engineering at the University of Iowa. He is also the son of our Engineering Supervisor in Spencer, David Mertens.

Brayden Schuster - He completed the extended career experience (ECE) from Spencer High School with Demco and received our Demco Manufacturing scholarship to pursue his Welding certification.

05/14/2026

🔥🔥🔥

05/10/2026

Happy Mother’s Day!

To the moms who rise early, work hard, and never miss the moments that matter. Thank you.
Your strength keeps everything growing. 🌱🌺 🌹

05/06/2026

🎉 Congratulations to the Employees of the Month for Demco: Dave Frick and Rian Byers! 🎉

We’re thrilled to recognize Dave and Rian for their outstanding contributions and dedication to Team Demco!

🌟 Dave Frick
"Dave is the glue that holds the semi-trailer sales team together. He is an invaluable resource not only for our dealers but also for our sales territory managers. Dave consistently goes above and beyond. He comes in early, stays late, and quite often puts in extra time on Saturdays to stay caught up or complete important projects. His dependability, strong work ethic, and willingness to go the extra mile make a noticeable difference to the team."

🌟 Rian Byers
"Rian has shown proficiency and drive in all that he has been tasked with in the Engineering Department. His determination to work through his projects in Teamwork and keep everyone to task with deadlines has been fantastic! His problem-solving, working with other team members, and dealing with external customers have been exceptional. He is demonstrating daily what it means to be an Employee of Choice for Team Demco!"

👏 Thank you, Dave and Rian, for your hard work, passion, and commitment to excellence. You truly embody what it means to be part of Team Demco, and we’re proud to celebrate you!

05/05/2026

Future leaders in the house! 🏠 We hosted 43 first graders for a tour of the DEPOT today. We’re so glad we could be a part of your school year!

04/30/2026

04/23/2026

Proud to be part of the Build My Future event at the Clay County Fairgrounds in Spencer.
Dillon White (Spencer Production Manager) and Dan Ruehle (Weld Department Team Lead) connected with lots of local high school students to share what a future in manufacturing can look like.
Great partnering with Diamond Vogel for this event!

04/14/2026

Another race in the books at Bristol Motor Speedway with ! Always great to see the DEMCO® car battling it out on a short track!

Address

4010 320th Street
Boyden, IA
51234

Opening Hours

Monday	8am - 4:30pm
Tuesday	8am - 4:30pm
Wednesday	8am - 4:30pm
Thursday	8am - 4:30pm
Friday	8am - 4:30pm

Telephone

(800) 543-3626

Website

http://www.demco-products.com/

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