About Us
Sudenga is a leading manufacturer of grain, feed, and seed handling equipment built for everything from small farms to large commercial operations. We build our equipment in northwest Iowa, where our team handles engineering, fabrication, finishing, and assembly to ensure consistent quality from start to finish. Since 1888, we’ve been building equipment designed to perform.
Product Lines
From grain and feed to seed and OEM applications, Sudenga’s product lines are built to keep product moving.
Grain
Built to keep grain moving efficiently through every stage.
- Portable augers
- Grain bin sweeps and unloads
- Bucket elevators
- Drag chain conveyors
- Round tube and u-trough augers
- Electronics
Feed
Designed to support efficient, consistent feed production.
- Micro ingredient skids
- Hammer mills
- Batching software
- Batching skids
- Feed mixers
- Continuous feed loop system
Seed
Engineered to move product gently while protecting quality.
- Seed box openers
- Gravity wagon augers
- Seed belt conveyors
- Undercar belt hopper
- Steel core bristle flighting
- Weigh hopper
OEM
Manufacturing support for OEM partners, from individual components to complete systems.
Capabilities include powder coating and precision fabrication for a wide range of applications. Sudenga works with both large and small-scale manufacturers as a reliable production partner.
OUR HISTORY
Sudenga’s story begins with Folkert Sudenga, who immigrated from Germany in the 1880s and settled in northwest Iowa. In 1888, he opened a small blacksmith shop in George, serving local farmers with repairs and practical solutions. What started as George’s first smith shop quickly earned a reputation for reliability and ingenuity shaped by the needs of the people it served.
As the next generation stepped in, the business expanded beyond blacksmithing into manufacturing. In 1898, a trip hammer became the first product built in George, marking an early shift toward equipment production. The operation continued to evolve in the early 1900s, briefly including a Ford dealership, before focusing more fully on building labor-saving solutions for agriculture.
By the mid-1940s, that direction was set. Following the success of a rear-end loader, Sudenga transitioned into agricultural equipment manufacturing in 1946. Augers and grain handling equipment followed, many inspired directly by real challenges in the field. Through the Great Depression, multiple fires, and changes in the ag economy, the company continued to rebuild and move forward.
Across generations and ownership transitions, the business has remained closely tied to its roots, guided by people connected to its legacy. That continuity still defines Sudenga today, with a focus on building equipment designed to perform and built to last.
Moving Forward
Today, Sudenga continues to grow while staying grounded in the same principles it was built on. From its beginnings in a small blacksmith shop, the operation has expanded into a full-scale manufacturing facility serving customers across the agriculture industry and beyond.
That growth includes the addition of a 150,000 square foot manufacturing facility in George, Iowa, bringing DTI’s total manufacturing and warehouse space to over 350,000 square feet. Designed to support modern production, this expansion brings advanced equipment, improved workflows, and increased capacity together in one place, allowing us to build more efficiently while maintaining the consistency and durability our customers expect.
As we look ahead, we continue to invest in better processes, expanded capabilities, and solutions that help our customers keep moving forward.
VISITOR MAP
A quick overview of key locations across the Diversified Technologies, Inc. (DTI) campus, home to Sudenga and Dur-A-Lift. SEE MAP
FAQ
Can I buy direct from the factory?
Sudenga equipment may be purchased through your local dealer/distributor. Use our dealer locator by clicking here. You can also reach us at 1-888-SUDENGA or sales@sudenga.com and someone will connect you with your local dealer.
How can I contact the factory?
Call toll-Free (888) 783-3642 between the hours of 7am to 5pm (Central Time). You can also contact us via e-mail by clicking here.
How can I find a dealer/distributor in my area?
Fill out our dealer locator from by clicking here and we will have a authorized Sudenga dealer get in touch. You may also call 1-888-SUDENGA or email sales@sudenga.com and someone will help connect you with a dealer near you.
Will Sudenga Industries ship internationally?
Of course. We’ve shipped equipment all over the world. Contact us today to find out more.
What are your hours of business?
We are open from 7am to 5pm (Central) weekdays.
Where are you located?
Sudenga Industries has been located in the town of George in extreme Northwest Iowa since 1888. Our home office and manufacturing facility is located 1 mile north and 1 mile east of George. Our address is 2002 Kingbird Ave., George, IA 51237. You can reach us toll-free at 1-888-783-3642 with any questions.
We also maintain a stocked distribution center in Atwood Indiana. The address of that facility is 409 E. Main St., Larwill, IN. The phone number is 1-877-439-3006.
How can I get pricing or place an order for Sudenga products or parts?
Contact your local Sudenga dealer/distributor for pricing. You can also use our Request a Quote form and we will have an authorized dealer or Sudenga rep get in touch.
Does Sudenga Industries make special parts or equipment?
We love a challenge and will happily visit with you about specially manufactured parts or components. Please contact us at 1-888-SUDENGA to discuss your needs. It is important to note that special items may require extra time to manufacture and cannot be returned.
Where can I see Sudenga equipment in person?
Sudenga Industries is represented at over 30 trade shows a year and equipment is often displayed as part of our effort at those shows. In addition, we have an extensive network of stocking dealers where many of our products can be viewed. Contact us for more information.
How can I become a Sudenga dealer or distributor?
We are always looking for established, qualified people and dealerships to represent us. Please contact the factory at 1-888-SUDENGA with your inquiry or via the contact us feature found on this site. Prospective dealers must fill out a credit application, receive approval and meet with a factory representative.
Who owns Sudenga Industries?
Sudenga Industries, Inc. is a division of Diversified Technologies, Inc. (DTI). Other divisions of DTI include Dur-A-Lift, Inc., a truck and van mounted aerial lift company. You can read more about Dur-A-Lift at www.dur-a-lift.com. Diversified Technologies, Inc. is privately owned.
How do I apply for a job at Sudenga Industries?
We are always looking for qualified individuals. You can apply in person at our corporate offices located at 2002 Kingbird Ave. outside of George, Iowa or email careers@sudenga.com. You can find more information on our careers page by clicking here.
Patented products
Our equipment is backed by patented designs across multiple product lines. Explore patents by category below.
CHAIN CONVEYORS
DOUBLE HOPPER DRIVE-OVER CONVEYOR
- U.S. Patent Number 8,960,412
- U.S. Patent Number 9,382,075
- U.S. Patent Number 9,617,084
PORTABLE AUGERS
PORTABLE DOUBLE DRIVE OVER HOPPER
- U.S. Patent Number 10,475,486
- U.S. Patent Number 10,865,011
EXTENDABLE AUGER
- U.S. Patent Number 8,381,900
GRAIN BIN SWEEPS
DOUBLE BARREL POWER SWEEP
- Patents pending
EXTEND-A-SWEEP
- U.S. Patent Number 10,322,892
- U.S. Patent Number 9,546,055
- U.S. Patent Number 8,864,433
- Canadian Patent Number 2,691,498
D100/5150 SWEEP AUGER
- U.S. Patent Number 10,322,892
- U.S. Patent Number 9,650,217
- U.S. Patent Number 9,206,001
- U.S. Patent Number 9,206,000
- U.S. Patent Number 8,616,823
- Other patents applied for
BIN SWEEP COLLECTOR RING
- U.S. Patent Number 10,017,338
- U.S. Patent Number 10,518,989
Mission statement
- For every product: Quality
- For every transaction: Integrity
- For every customer: Satisfaction
- For every employee: Dignity
- For every response: Truthfulness
- For every accomplishment: Gratitude