| Dave Schwartz | Verdesian Life Sciences |
| Brent Schwenneker | Bayer |
| Laremy Seelow | Stueve Construction LLC |
| Max Shilstone | Dakota Access |
| Ryan Short | Heartland Tank Services |
| Marshall Simmerman | Landus |
| Ron Simmons | Rosen's Inc. |
| David Simonson | Nutrien Ag Solutions |
| Gary Sloan | BMO Bank |
| Curt Sloss | UPL |
| Brandon Smith | Parallel Ag |
| Ben Smith | Farm Rescue |
| Charles Smith | Smith Fertilizer and Grain |
| Ken Smith | Innovative Ag Services |
| Tim Smith | Nutrien |
| Don Sobaski | FARMCHEM |
| Katie Sobotka | Pivot Bio |
| Daniel Solis | DAKK Liners |
| Todd Soma | Helena Agri |
| Kale Spengler | UPL LTD |
| Joel Spring | Van Diest Supply Company |
| Dean Stalzer | Stalzer Family Farms |
| Nick Steffens | Deveron |
| Jeff Steinback | Remington Seeds LLC |
| Cody Steinkamp | Doyle Mfg. |
| Ty Stender | Corteva Agriscience |
| Dave Stewart | Davis Equipment |
| Ryan Stolte | Fertilizer Dealer Supply |
| Connor Stone | Iowa Agriculture Water Alliance |
| Brent Strahm | Greenfield Contractors LLC |
| Norb Strasser | Intellifarms Northern Division, Inc. |
| Bert Strayer | La Crosse Seed |
| Judd Stretcher | Continental NH3 Products |
| Katie Stutsman | Corteva Agriscience |
| Ron Stutsman | Eldon C. Stutsman, Inc. |
| Edwin Suarez | Landus |
| Michael Subealdea | Corteva Agriscience |
| Byron Sunderman | NEW COOPERATIVE |
| Nate Sutton | Eldon C. Stutsman, Inc. |
| Scott Svoboda | 21st Century Coop |
| John Swehla | Dunkerton Coop |
| Andrea Tarble | AGI |
| Dustin Teig | Corteva Agriscience - Brevant Seeds |
| Tyler Teske | Agribusiness Association of Iowa |
| Dan Thompson | Siouxland Scale Service |
| Sally Thompson | Agribusiness Association of Iowa |
| Jeff Thompston | Calcium Products |
| Taylor Thomsen | WintexAgro USA |
| Paige Thomsen | Iowa Certified Crop Advisers |
| Eric Thuente | Creative Planning |