T H has an excellent group of experienced sales people who have worked with both row crops and the diverse mix of specialty crops grown in Wisconsin and beyond. Most of us have either grown up on farms growing crops, or are still actively growing the crops we work with. Feel free to send us a message if you have any questions or need expert advice!


Robert L. Zimpel, President and Sales

Robert L. Zimpel, President and Sales

I was raised on a small dairy farm in southwest Wisconsin. I've been involved in the fertilizer and chemical industry since the early 60's and have worked with a variety of crops, including: specialty crops, potatoes, carrots, onions, peas, sweet corn, and more. I also own Hillcrest Orchards in Gays Mills, WI, where we operate a farm market and grow apples, strawberries, raspberries, Christmas trees, squash, pumpkins, and sweet corn.  Feel free to call my cell at #715-570-7091.

Ask Bob a Question!

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Steve Rosenthal, Executive Vice President, CCA

Steve Rosenthal, Executive Vice President, CCA

I am originally from Sheboygan, WI. I graduated from the University of Oshkosh and have since been involved in the agricultural industry. I focus on potatoes, vegetables, and Christmas trees. I can be reached on my cell at #715-570-7092.

Ask Steve a Question!

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Jeff Luttropp, Sales Representative, CC

Jeff Luttropp, Sales Representative, CC

I'm from the Berlin area and have been farming and working in the agriculture industry since I can remember. I work with a variety of crops, but focus on row crops. Call me with any questions on my cell at 715-570-7082.

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Dave Wenninger, Sales Representative

Dave has many years of experience in agriculture and we are glad to have him as part of our team.

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 Ask Ethan a question!

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