About Us
At Red Cedar Ag, our mission is to empower growers with the agronomic expertise, innovative tools, and dependable products they need to make every acre count.
RCA began in 2019 and is a full-scale agronomy business rooted in service, science, and trust. From our facility near Sand Creek, Wisconsin, we proudly deliver practical, cost-effective solutions—from seed and inputs to precision soil insights.
We believe true value comes from the intersection of product quality, competitive pricing, and agronomic knowledge. By pairing boots-on-the-ground experience with cutting-edge tools like EarthOptics, we help farmers make smarter decisions from the ground up.
Red Cedar Ag is more than a supplier; we’re a partner dedicated to growing with you, season after season.
Jake Zwiefelhofer and his wife Sarah
Built on Knowledge.
Backed by Science.
With our office & warehouse located near Sand Creek, Wisconsin we are poised to provide quick and cost-effective solutions for local growers. At Red Cedar Ag we believe that product price, quality, and knowledge must be married to truly provide for the needs of our growers.
Our Team
Jake Zwiefelhofer
PRESIDENT
715-933-1794
jakez@redcedarag.com
Justin Sarauer
SALES AGRONOMIST
715-933-0700
justins@redcedarag.com
Derek Penzkover
SALES AGRONOMIST
715-609-9009
derekp@redcedarag.com
Zachary Pieper
SALES AGRONOMIST / OPERATIONS
715-933-8040
zacharyp@redcedarag.com
Megan Warring
OFFICE MANAGER
715-658-2767
meganw@redcedarag.com
Preston Paulson
CFO
715-658-2767
info@redcedarag.com
Jenny Phillips
CMO
740-361-9484
info@redcedarag.com