The Contract Members form the foundation of the Turfgrass Diagnostic Lab with their support. With this support the TDL has become one of the premier centers for turfgrass diagnostics in the country. For more information on the benefits Contract Members receive and how to become a Contract Member please click here.
A huge thank you to our 2022 TDL Contract Members for their incredible support. Quite simply, without their support the TDL would not exist. Special thanks to Syngenta for their $2,000 membership, Sentryworld GC for their $1,500 membership, and the following groups for their $1,000 membership: Advanced Turf Solutions, Chicagoland Turf/Turf Ventures, Kohler Golf Courses, Milwaukee County Parks, Pine Hills CC, Reinders, Reliable Property Services, Sand Valley Golf Resort, and Winfield Solutions. Members below in bold have memberships of $1,000 or higher. Thank you to everyone on this list for your support of the TDL!
| Facility | Location |
| Abbey Springs GC | Fontana, WI |
| Advanced Turf Solutions | Madison, WI |
| Bertog Landscape Co. | Wheeling, IL |
| Blackhawk CC | Madison, WI |
| The Bruce Company | Middleton, WI |
| Central Wisconsin Sod | Coloma, WI |
| Chenequa CC | Hartland, WI |
| Chicagoland Turf/Turf Ventures | Downers Grove, IL |
| Country Club Estates |
Fontana, WI |
| Eau Claire CC | Eau Claire, WI |
| Edgewood GC | Big Bend, WI |
| Fox Valley GC | Kaukauna, WI |
| Green Bay Packers | Green Bay, WI |
| Hayward GC | Hayward, WI |
| Helena Chemical | Edgerton, WI |
| Hidden Glen at Bentdale Farm | Cedarburg, WI |
| Insight FS | Jefferson, WI |
| Jasperson Sod | Franksville, WI |
| Kohler Golf Courses | Kohler, WI |
| La Crosse CC | La Crosse, WI |
| La Crosse Seed | La Crosse, WI |
| Land Care | Mount Horeb, WI |
| Lurvey Sod | Whitewater, WI |
| Maple Bluff CC | Madison, WI |
| Milwaukee Brewers | Milwaukee, WI |
| Milwaukee County Parks | Milwaukee, WI |
| Minocqua CC | Minocqua, WI |
| North Hills CC | Menomonee Falls, WI |
| North Shore GC | Menasha, WI |
| Oconomowoc CC | Oconomowoc, WI |
| Oneida Golf and CC | Green Bay, WI |
| Paul’s Turf and Tree | Marshall, WI |
| Pine Hills CC | Sheboygan, WI |
| Profile Products |
Rockford, WA |
| Racine CC | Racine, WI |
| Reedsburg CC | Reedsburg, WI |
| Reinders | Sussex, WI |
| Reliable Property Services | Middleton, WI |
| Rhinelander CC | Rhinelander, WI |
| Rolling Meadows GC | Theresa, WI |
| Sand Valley Golf Resort | Nekoosa, WI |
| Sentryworld GC | Stevens Point, WI |
| Skalitzky Sod |
Waterloo, WI |
| South Hills CC | Fond du lac, WI |
| Springview Landscape | Green Bay, WI |
| Superior Turf Services | Eden Prairie, MN |
| Syngenta | Greensboro, NC |
| The Legends at Bristlecone Pines | Hartland, WI |
| Tuckaway CC | Franklin, WI |
| University of Wisconsin Athletics | Madison, WI |
| Weedman Lawn Care | Middleton, WI |
| West Bend CC | West Bend , WI |
| Westmoor CC | Brookfield, WI |
| Winfield Solutions | Plymouth, MN |
| Wisconsin Timber Rattlers |
Appleton, WI |