- CEO
- Thomas J. Kersting
- Full Time Employees
- 131
- Sector
- Consumer Defensive
- Industry
- Packaged Foods
- Address
- 100 Caspian Avenue Volga SD United States of America 57071
- IPO Date
- Aug 31, 2018
- Business
- South Dakota Soybean Processors, LLC (SDSYA) owns and operates soybean processing plants and a soybean oil refinery focused on converting locally grown soybeans into meal, oil, and related byproducts; the company serves resellers, feed mills, livestock producers, food manufacturers, biodiesel producers, and chemical industries throughout the United States, Canada, and select export markets. Founded in 1993 and headquartered in Volga, South Dakota, it processes soybeans at its primary hexane solvent facility in Volga, a mechanical expeller press plant in Miller for identity-preserved non-GMO and organic soybeans, and a refinery producing crude, refined, and deodorized soybean oil; core products include high-protein soybean meal for dairy, swine, poultry, and aquaculture feeds, soybean hulls, multiple grades of crude and refined soybean oil including salad oil, and contracting services for oilseed plant construction and management. The company, owned by approximately 2,200 agricultural producer members, began operations in 1996 and reorganized from a cooperative to an LLC in 2002 to optimize tax treatment as a partnership; it maintains about 139 employees across its South Dakota facilities, with all assets and production domiciled in the state. In recent developments, South Dakota Soybean Processors formed subsidiary High Plains Partners LLC in 2023 and invested over $100 million to develop a $500 million multiseed processing plant south of Mitchell, South Dakota, entering a joint venture with BP Products North America Inc. to own and operate the facility, which broke ground in September 2023, opened with a ribbon-cutting in September 2025, and began fall 2025 operations crushing 35 million bushels of soybeans annually with plans to expand to sunflowers, canola, and camelina; earlier investments include the 2014 Miller plant acquisition enabling non-GMO/organic expansion and a 2019 stake in Prairie AquaTech LLC for soy-derived protein feed production adjacent to Volga.