As a service organization, our people are our most important resource. They are the engineers, scientists, designers, technicians and mechanics that work with you to help resolve problems. Most have ten to thirty or more years of experience. Some are retirees that work part or full time. They have developed a wide range of products and special purpose machines and have consulted on many individual problems.
Product development experience ranges from concept development, to design, to prototype build and test, and production start up. Machine automation experience includes processes like small parts assembly, food processing/packaging, and special production line testing equipment.
Take a moment to get acquainted by clicking on the names below. You can also Click Here to see a few of our additional associates.
Our People...
 Larry Anderson
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Glenn Bauler
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 Vince Bernard
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 David Brandon
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Al Burgess
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 Delbert Carpenter, P.E. |
 Nathan Clarke
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 Dennis Craun
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 Bob Diedrichs, P.E.
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 Gary (Corky) Doering
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 David Finck
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 Jason Gaede
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 Jim Garrett
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 Jack Gregersen, P.E.
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 Richard Groves
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 Ray Hottle
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 Herbert Larsen, P.E.
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 Norman Lemmon
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 John Loonan
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 James H. Madill
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Dan Messerschmidt
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 Brad Meyer, P.E.
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 Richard Michael
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 Jim Miller
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Lester Nighswonger 
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Dennis Oelmann 
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Duane Powell 
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Ralph Prunty
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Holly Knudsen
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Randy Rigdon 
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Randy Rinkenberger 
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Bryce Robinson 
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Reno Rodeghiero, P.E. 
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Krishna Sastry
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Randy Schmitz 
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Paul Schuhmacher
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Ken Seeger
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Charles Seeliger
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Mark Simkins
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Werner Stettler 
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Tom Van Veldhuizen
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Peter Wetrich 
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Additional Associates ...
As a service organization, our people are our most important resource. We have several types of resources that we utilize, including contract associates. These are the associates that do not do continual work with us, but rather contribute on an as-needed basis. These associates are an important asset to our company, as they provide invaluable expertise and experience in their respective fields.- |
Dale Gumz
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Ian Johnstone
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Ralph Shirley, P.E.
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Professional Activities
Diedrichs employees are active members of professional and technical societies on a local and national level. Involvement in these organizations provides opportunities for exchange of knowledge, access to industry standards, professional development and networking.
Organizations
- American Society of Agricultural & Biological Engineers (ASABE)
- American Society of Mechanical Engineers (ASME)
- Institute of Electronics and Electrical Engineers (IEEE)
- Society of Automotive Engineers (SAE)
- Society of Plastics Engineers (SPE)
- National Society of Professional Engineers (NSPE)
- Iowa Engineering Society (IES)
- International Association of Arson Investigation (IAAI)
- Cedar Valley Manufacturers Association (CVMA)
Conferences & Events
- Agricultural Equipment Technology Conference, Louisville, KY
- Agricultural Machinery Conference, Cedar Rapids, IA
- ASABE Annual International Meeting
- ASABE 1/4 Scale Tractor Competition, East Moline, IL
- ASABE Iowa Section Meetings, Ames, Waterloo, Ottumwa, etc
- ASABE, ASME, SAE, SME Joint Meeting, Waterloo, IA
- Farm Progress ShowIowa
Community Involvement
Diedrichs supports and attends local community activities throughout the year.
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