| Dennis Johnson | Ralph Bartz | ||
| PO Box 453 | 2208 16th Ave SE | ||
| Windom, MN 56101 | Austin, MN 55912 | ||
| 507-831-2703 | 507-438-8739 | ||
| djohnson@wenck.com | rdbartz@gmail.com | ||
| Robert Kostinec | Russell Stammer | ||
| 4335 6th St NW | 6188 Rome Circle NW | ||
| Rochester, MN 55901 | Rochester, MN 55901 | ||
| 507-358-5532 | 507-529-6055 | ||
| robertkostinec@yahoo.com | rstammer@bonestroo.com | ||
| Michael Tiry | Ronnie Williams | ||
| PO Box 44 | E14910 Bears Grass Rd | ||
| Chippewa Falls, WI 54729 | Augusta, WI 54722 | ||
| 715-723-6777 | 715-829-3231 | ||
| mtiry@tiryengineering.com | wes@chipvalley.com | ||
| Tiry Engineering, Inc | Bollig Inc | ||
| PO Box 44 | 1700 Technology Drive NE Suite 124 | ||
| Chippewa Falls, WI 54729 | Willmar, MN 56201 | ||
| 866-944-6777 | 320-235-2555 | ||
| www.TiryEngineering.com | www.bollig-engineering.com | ||
