6924 Columbus St. United States



About Us

Willenborg Ag Service - Dennis Willenborg began selling "pop-up" starter fertilizer in the Spring of 1977 as the first Alpine Fertilizer Distributor West of the Mississippi, and through the years became a Distributor of Nutra-Flo’s PureGrade Division of liquid starter fertilizers with Dealers in multiple states. Willenborg Ag Service is pleased to have served the agricultural industry for 35+ years, and looks forward to continued partnership in the future. Thank you for your continued support.


Durable Poly Solutions - a division of Willenborg Ag Service that serves as a Distributor of 'Enduraplas" poly tanks and products, and other new and used products for use on the farm, ranch, lawn or hobbyist.


Business Address:
Willenborg Ag Service & Durable Poly Solutions

6924 Columbus Street
New Vienna, IA 52065

Andy Willenborg

Dennis Willenborg