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WCO - Wisconsin Custom Operators
Representing custom farming in Wisconsin and beyond
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Heim Brothers Custom LLC // Kewaunee, Wis.
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WI Act 28 bill signing // Madison, Wis.
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D & J Manthe Forage Service LLC // DeForest, Wis.
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Blasel Custom Fieldwork // Dorchester, Wis.
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United Ag Enterprises, LLC // Seymour, Wis.
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Arneson Custom Farming // Barneveld, Wis.
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Touch-a-truck outreach event // Greenfield, Wis.

Who We Are

The Wisconsin Custom Operators is an organization comprised of individuals throughout the state who derive their income in whole or part from providing custom farming services. These services include: forage harvesting (alfalfa and corn silage), forage bagging, baling, tillage, planting, combining, trucking, manure handling, spraying, among other services.

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News & Events

REGISTER: April 9 Safety training & certification session
Posted On: April 09, 2026
Join the Wisconsin Custom Operators and U.S. Custom Harvesters for a day of safety training and approaches to managing risk. Farmers, custom operators and anyone interested in incident-reducing practices are encouraged to attend. This event qualifies towards WCO safety certification. Breakfast, lunch and snacks provided!
WCO members elect directors, select 2026 officers
Posted On: February 20, 2026

Wisconsin Custom Operators members re-elected three directors and filled one corporate vacancy during the group’s annual business meeting held Feb.18 in conjunction with the Forage Symposium at the Chula Vista Resort in Wisconsin Dells, Wis.

Re-elected to the board of directors were John Osterhaus (at-large director), Jeremy Heim (north region director), and Randy Clark (corporate director). Josh Harkenrider was elected to fill a special two-year corporate director position vacated following the retirement of Steve Pesik from Zimmerman Manufacturing.

2026 Forage Symposium Feb. 16-18
Posted On: December 01, 2025
The Symposium is your chance to connect with WCO and MFA members, industry leaders, extension specialists, and researchers from across the Midwest. Join us in 2026 at the Chula Vista Resort in Wisconsin Dells, Wisconsin.
Board nominations sought
Posted On: November 22, 2025
WCO is looking for Board of Director nominations. Elections will take place at the WCO annual meeting on Feb. 18, 2026, held in conjunction with the Forage Symposium event at Chula Vista Resort in Wisconsin Dells. 
Online equipment auction benefits WCO; now through Dec. 9
Posted On: November 22, 2025

By Maria Woldt for WCO

WCO is proud to announce our fourth annual an Fall online auction, Nov. 25–Dec. 9,  coordinated by Hansen Auction Group. The auction includes machinery typical for custom operators, but virtually all items will be considered.

 

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