| Calvin Sabrowski | Becks Hybrids |
| Jean-Claudel Saint-Preux | CentiMark |
| Todd Sampson | Midwest Insurance Corp |
| Mark Samuleson | The Andersons |
| Trey Sands | Squibb Taylor Inc |
| Steven Schany | AgriGold |
| Troy Schlapkohl | Heartland Coop |
| Travis Schmitt | Nutrien Wholesale |
| Gary Schmitt | Farmers Win Coop |
| Todd Schomburg | Stine Seed Company |
| Marty Schwager | Iowa Farm Bureau Federation |
| Dave Schwartz | Verdesian Life Sciences |
| Brent Schwenneker | Bayer |
| Todd Scobie | Murray Equipment Inc. |
| Laremy Seelow | Stueve Construction |
| Aaron Seifert | Ever.Ag |
| David Shields | NEW Cooperative |
| Garrett Shoemaker | Total Energy Corp. |
| Ryan Short | Heartland Tank Companies |
| Bianca Short | Heartland Tank Services |
| Helen Simonsen | Simonsen Industries, Inc. |
| Karson Sims | Helena Agri-Enterprises |
| Shelly Sims | Intellifarms Northern Division, Inc. |
| Beto Sodré | Vega Farm Analytics |
| DeQuindre Spencer | Minnesota State University Mankato |
| Grace Spooner | Northern Nutrients |
| Joel Spring | VAN DIEST SUPPLY COMPANY |
| Dean Stalzer | Stalzer Farms |
| Luke Stamp | DPA Auctions |
| Jeff Steinback | Remington Seeds LLC |
| Dave Steinbeck | Steinbeck and Sons |
| Chris Steinbeck | Steinbeck & Sons Inc |
| Cody Steinkamp | Davis Equipment |
| Chris Stevens | Liqui-Grow |
| Taylor Stoeckler | Iowa State University - Ivy College of Business, Executive MBA |
| Brent Strahm | Greenfield Contractors |
| Norb Strasser | Intellifarms Northern Division, Inc. |
| Bert Strayer | La Crosse Seed |
| Judd Stretcher | Continental NH3 Products |
| Craig Struve | SoilView, LLC |
| Katie Stutsman | Corteva Agriscience |
| Nate Sutton | Eldon C. Stutsman, Inc. |
| Scott Svoboda | 21st Century Coop |
| Matt Swanson | Gold Eagle Coop |
| John Swehla | Dunkerton Coop |
| Rod Swoboda | Iowa Master Farmers |
| Drew Taylor | Northern Nutrients |
| Travis Templeton | Purple Wave Auction |
| Olivia Tenuta | Stine Seed Company |
| Tyler Teske | Agribusiness Association of Iowa |