- Seeds To Grow On
- Seeds West
- Seedtime & Harvest
- Seeman Farms Seed Wheat
- Select Seed Hybrids
- Seminis Vegtable Seed Co
- Shamrock Seed Co
- Shear Inc
- Shelby Seed
- Shissler Farm Inc
- Shissler Farm Inc
- Shockney Seed Svc
- Sikes Feed & Seed Inc
- Silver Lane Hybrid Inc
- Simplot Grower Solutions
- Siouxland Seeds
- Sipes Seed Svc
- Snake River Seed Inc
- Snow Seed Co
- Southern States Whaley's
- Southpine Inc
- Southwestern Vegetable Seed
- Spies Soybean Svc
- Spies Soybean Svc
- Spies Soybean Svc
- Star Seed Inc
- Star Seed Inc
- Stauffer Seeds
- Stewart Ohrtman Seed
- Stewart Seeds Inc
- Stewart Seeds Inc
- Stewart-Central Inc
- Stewart-Central Inc
- Stone Seed Farms
- Stoner Seed Farms
- Storby Seeds
- Stormy's Acres Inc
- Stouffer Seeds
- Stratton Seed Co
- Stratton Seed Co
- Sturdy-Grow Hybrids
- Sturdy-Grow Hybrids
- Sturm Seed
- Stuttgart Seed Co
- Sucrosco Seed
- Sucrosco Seeds
- Sun Mountain Natives
- Sunny Seed Co
- Sure Crop Care Inc
- Syngenta Seeds Inc
- T S & L Seed Co
- Taeger Seed
- Tammen Seed Svc
- Tammen Seed Svc
- Tammen Seed Svc
- Taylor Agri Products
- Taylor Seed Farms Inc
- Taylorville Feed & Fertilizer
- Taylorville Feed & Fertilizer
- Taylorville Feed & Fertilizer
- Tee Box Seeds
- Ten Barge Seed Co
- Thomas Burk-Pioneer Seed
- Thomsen Seed
- Thor-O-Bred Seeds Inc
- Timken Seed Co
- Tom Eischen Sales
- Tomato Growers Supply Co
- Tri-State Air
- Trio Research Inc
- Trisler Seed Farms Inc
- Tropical Rainforest Seed Co
- Tundra Rose Nursery
- Turner Seed & Supply
- Turner Seed & Supply
- UAP Midsouth
- Umbach Seed & Feed
- United Agri Products Inc
- Unity Seeds
- Uthoff Hybrids
- V W Seed
- Valley 4 Ranch Supply
- Valley Feed & Seed Inc
- Van Meter Feed Yard
- Vanderveen Pioneer Seed
- Volcanic Seeds
- Voris Seeds Inc
- W A Rice Seed Co
- Wabaunsee Seed
- Wagner's
- Walton Farms
- Welter Seed & Honey
- Wespott Hybrid Seed Co-Op
- Wesson Farms Inc
- West Central Fs
- West Central FS Inc
- Western Seed
- Western Seed
- Western Seeds
- Western Seeds
- Westland Co-Op Crops 63
- Whisnand Hybrids
- Whisnand Hybrids
- White Oak Ag Inc
- White Oak Ag Inc
- White Oak Ag Inc
- White Seed Co
- Wiechert Seed Co Inc
- Wildflower Seed Co
- Wilke Seed
- Wilken Seed Grains Inc
- Willhoit Farm Seed
- William Lane Co Seeds
- Williams Brothers
- Williams Seed Store
- Willis Seed Sales Inc
- Wilson Seeds Inc
- Winger Seed
- Wingmead Seed
- Woodrow Fugate & Sons
- Woodward Pioneer Seeds
- Wright Seeds
- Wyatt Seed Co
- Wyffel's
- Wyffels Hybrids Seed Corn Corp
- Youngblood Seed Farm
- Zehr Acres
