These businesses are owned or operated by Greenbush residents

• U.S. Post Office
• Hau & Sippel Builders, Inc.
• Mike Entringer Construction, Inc.
• Becker's Greenbush Trading Post
• Arno Pfeifer, Inc.
• Lakeland Truck Caps
• Midpoint Machine
• JB Taxidermy
• Schultz and Dippel Milk Haulers
• Kettle Moraine Correctional Institution
• Jim Weinbauer Construction
• American Legion Post 261
• Wisconsin Historical Society
• Schwind Trucking, LLC
• Kettle Moraine Trailblazers
• Northern Kettles Moraine Snowmobile Association
• Kettle Moraine Utilities Waste Water Treatment Plant
• Spring Valley 4-H Club
• Kettle Moraine 4-H Club
• Crockett's Cabinetry and Woodworking LLC
• Yurk Counseling Services LLC