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Last updated: September 2026
This directory lists 31 oat processing companies across the United States, from large-scale commodity processors to specialized ingredient manufacturers focusing on custom oat milk bases and functional oat flours.
Buyers engage these specialized partners to solve a range of critical problems, from achieving precise particle size distribution for specific recipes and optimizing kilning profiles to minimize lipase activity for extended shelf life, to scaling production of complex oat-based ingredients while adhering to strict nutritional and sensory specifications.
Supplier types in this sector generally fall into three categories: large-scale commodity processors handling high volumes of conventional oats, specialty ingredient manufacturers focusing on value-added products like gluten-free oats or concentrated beta-glucan extracts, and contract manufacturers or co-packers specializing in finished oat-based products like oat milk or instant oatmeal.
To ensure a productive engagement, buyers should come prepared with detailed specifications for desired moisture content, specific beta-glucan levels, required certifications (e.g., GFCO, Organic), and projected volume forecasts. Suppliers, in turn, expect a clear scope of work, target cost of goods, and a comprehensive understanding of the end product’s application and market requirements.
A significant current trend in the oat processing category is the explosion in demand for oat milk and other plant-based dairy alternatives, driving innovation in oat milk base formulations, enzyme treatment optimization, and sustainable sourcing. This has also spurred increased interest in functional oat ingredients for health and wellness products.
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31 companies nationwide
Above Food Ingredients Inc. specializes in oat processing, supplying conventional and gluten-free oat-based ingredients to industrial manufacturers and food service companies. Offerings include pasteurized groats, various flakes, and oat flours. Leveraging US manufacturing facilities, they support innovative plant-based food product development.
Based in Denver, CO, Ardent Mills is a food ingredient supplier, offering a portfolio of flours, grains, pulses, and seeds. They provide gluten-free oat flour for B2B clients, supporting the creation of nutrient-dense and digestive health-focused products. The company assists in developing GLP-1 friendly innovations without sacrificing taste or texture.
Based in Woodbury, MN, AVEKA Group is a contract toll processor providing diverse drying, milling (jet, cryo, hammer), and blending services. Their capabilities, from lab to tanker scale, are directly applicable for processing oats and other agricultural commodities, serving industrial clients.
Basecamp Co-Pack is a Denver, CO-based food manufacturer and co-packer. They provide comprehensive food manufacturing and packaging solutions, including fills, stick packs, and jars, for various food products. As a one-stop-shop, the company offers co-packing and consulting services to support food brands through product development and production.
Batory Foods, based in Rosemont, IL, supplies a comprehensive range of high-quality processed oats for commercial customers. Their extensive offerings include rolled, steel-cut, and groat oats, as well as various oat flours. They also provide certified gluten-free options, meeting diverse industry demands.
Based in Bowling Green, KY, Bluegrass Ingredients manufactures a range of ingredient powders for the food and beverage industry. The company produces Oat Milk Powders, alongside dairy and plant-based solutions, assisting food manufacturers with reformulation efforts and trending dietary guidelines.
Based in Waukesha, WI, Connoils By Kraft manufactures and supplies bulk oil ingredients, specifically including oat oil. They create oil and oil powders meeting food, nutritional, and drink grade standards. The company offers customized formulations for various industries, including functional food and pet nutrition clients.
Based in Delphos, OH, D&D Ingredients LLC offers outsource manufacturing services as a full-service toll processor for the feed and pet food industries. They specialize in custom grinding, blending, and co-packing for various ingredients, supporting feed manufacturers and suppliers with comprehensive processing solutions.
GF Harvest operates its own dedicated gluten-free mill, specializing in processing organic oats. The company is a domestic source for a variety of gluten-free oatmeal and other oat products.
Based in Tuckahoe, NY, Elcan Industries Inc. specializes in advanced sieving, separation, and contract manufacturing. They offer comprehensive toll processing and powder processing solutions, utilizing full-scale bays for industrial applications. This includes capabilities relevant for food-grade powders like oats.
Based in Mount Vernon, WA, Fairhaven Mill is a family and farmer-owned certified organic flour mill. They process organic oat groats into oat flour, offering a range of premium organic and naturally gluten-free flours. The company emphasizes organic grains and sustainable practices.
Based in Eden Prairie, MN, SunOpta delivers customized supply chain solutions for brands, retailers, and foodservice. They specialize in processing oats and other plant-based ingredients, producing oatbase used in organic oat milk, barista blends, and coffee creamers. SunOpta also offers liquid and dry ingredients.
Grain Millers, Inc. is an ingredient partner specializing in processing oats, corn, wheat, rye, barley, triticale, and flaxseed. They operate as oat millers and a rolled oats supplier, focusing on clean label ingredients. The company offers a single-source advantage for custom blends, ingredients, and packaging.
Highland Milling LLC, based in Bancroft, ID, specializes in precision-milled oat, barley, and rye products. They process food-grade oats for human consumption, including old-fashioned oats for cereals, granola, and baked goods. The company also offers specialized pet food formulations, with various packaging options for commercial clients.
La Crosse Milling Company, based in Cochrane, WI, specializes in the processing of cleaned oat and barley products. The company provides industrial clients with high-quality processed grain products, demonstrating a long-standing commitment to reliability and customer confidence in the food and feed industries.
Based in Skowhegan, ME, Maine Grains is an oat processing company providing freshly-milled, stone-ground organic and heritage oats. They produce various oat products, including rolled oats, cracked oats, and whole oat groats. Sourcing from the Northeast, the company offers wholesale options for businesses seeking quality oat ingredients.
Based in Empire, CA, Modesto Milling Inc. is an organic grain processor specializing in certified-organic, non-GMO animal feeds. They process ingredients like whole oats and other grains, offering custom feed mixes and packaging in various sizes, including bulk amounts, since 1998.
Based in Bolingbrook, IL, Prater Industries provides custom grinding and particle size reduction toll processing services for various dry bulk products, including oats and other grains. They offer milling, classifying, and screening solutions, utilizing their extensive expertise in industrial processing equipment and serving diverse industries.
Based in Bryan, TX, Producers Cooperative Association is a member-owned agricultural supply cooperative. The company manufactures livestock feeds, including processed oat products such as crimped oats and oat groats. They offer a comprehensive range of value-added products and services, like fertilizer, seed, and petroleum, serving farmers and ranchers throughout Texas.
Based in Rogers, AR, War Eagle Mill is a historic grist mill stone-grinding grains since 1832. The company directly processes and supplies organic and gluten-free thick rolled and quick oats. Sourced from USA growers, their high-quality oat products are available in bulk quantities for commercial and industrial customers.
Hulless Oats Cleaning Service provides specialized oat processing solutions, focusing on the critical step of removing the outer hull. This essential service, located in southwest Virginia, supports commercial clients by preparing oats to meet specific quality and processing requirements for various food applications. They deliver efficient and precise oat cleaning to enhance product quality.
Green Acres Milling is a farmer-owned oat mill based in Albert Lea, MN, dedicated to producing traceable, regeneratively-grown, food-grade ingredients. The company mills premium oats, offering high-quality raw oats, groats, flakes, flour, and other specialty oat products, focusing on farm sustainability and grower education.
Natural Bulk Supplies provides hydrolyzed oat protein in liquid form, ideal for use in various skin and hair care product formulations. Based in Buffalo Grove, IL, the company supplies this natural ingredient in bulk quantities to B2B customers.
Uncle Crumbles is a private label manufacturer specializing in custom granola, oatmeal, and other oat-based products. They utilize all-natural, gluten-free ingredients for clean-label offerings, sourcing oats from farms practicing regenerative agriculture. The company develops unique flavor creations for B2B clients.
Based in Milford, PA, Econo-Pak is a contract food packaging and co-manufacturing company specializing in high-volume services including wrapping, pouching, bagging, and cartoning. They offer co-manufacturing for various food categories, including cereals, and are certified SQF Level 3, FDA compliant, Organic, and Gluten-Free.
Gluten Free Harvest, operating as Gluten Free Oats Store, specializes in producing and supplying 100% whole grain, certified organic, and gluten-free oat products. They offer a range of processed oats including rolled, quick-cooking, steel cut oats, oat groats, and oat flour, available for ingredient sales in bulk. The company is involved in growing, inspecting, and harvesting oats, emphasizing regenerative organic practices and a glyphosate-free pledge.
Based in Fenton, MO, IFPC is an ingredient supplier and custom blender for the food and beverage industry. With a 230,000 sq.ft. SQF-certified manufacturing facility in St. Louis, MO, the company develops custom ingredient systems and blends. They supply various solutions, including oat fiber, flavor enhancements, and nutritional boosts.
Panhandle Milling provides custom co-manufacturing food services, including grain cleaning, flour milling, custom blending, and ingredient co-packaging. Based in Dawn, TX, they specialize in producing traditional, organic, and low-micro flours from various grains and seeds for private label brands and diverse B2B customers.
Richardson International operates North American oat milling facilities, including US operations, with an annual processing capacity exceeding 360,000 metric tonnes. As a global agriculture and food processing company, they produce a diverse range of oat products. Richardson serves as an international oat miller, supplying quality ingredients to global markets.
The Andersons Trade Group operates a grain elevator in Galena Park, TX, supplying high-quality feed oats and other bulk feed and food ingredients. With over 50 years experience, they serve livestock producers, feed mills, and multi-national companies across the US, Canada, and Mexico.
Edison Grainery processes organic, gluten-free, and glyphosate-free oats, providing regular rolled and steel cut varieties for wholesale industrial clients and professional chefs. Committed to food safety, they utilize 3rd party lab testing and in-house optical laser color sorting for clean, fresh ingredients.
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Kilning is a precise thermal treatment that inactivates naturally occurring lipase enzymes in oats, preventing enzymatic rancidity and extending shelf life. It also develops characteristic toasted flavors and impacts the gelatinization properties of the starch, which is crucial for achieving desired textures and viscosities in end products like oat milk or baked goods.
Achieving certified gluten-free status for oats requires a multi-faceted approach: sourcing specifically grown gluten-free oat varieties, using dedicated and segregated processing lines, implementing stringent cleaning protocols between production runs, and conducting rigorous, third-party verified testing (e.g., ELISA) at various stages to confirm gluten levels are below 20 ppm, often managed under GFCO standards.
Oat groats are whole, dehulled oat kernels. Steel-cut oats are oat groats that have been chopped into smaller pieces by steel blades, resulting in a chewier texture. Rolled oats (or flakes) are groats that have been steamed and then flattened between rollers, which partially cooks them and reduces cooking time, requiring specific dehulling, cutting, steaming, and flaking equipment.
Customization involves precise adjustments to the oat-to-water ratio, specific enzyme treatments (e.g., amylase for sweetness and viscosity), filtration methods, and stabilization techniques. For barista applications, the focus is on achieving optimal frothing, emulsion stability, and neutral flavor; for culinary uses, it might be a specific viscosity, sugar profile, or richness for cooking and baking.
Beyond your desired particle size distribution (e.g., average micron size, mesh screen specification), you should provide target moisture content, specific beta-glucan levels, protein, fat, and fiber percentages, water activity, and any maximum enzyme activity limits. Also, clarify any specific heat treatment requirements or microbial specifications for your application.
Different oat varieties (e.g., hulless vs. hulled, specific cultivars) exhibit significant variations in their protein, fat, and beta-glucan content, as well as kernel size and hardness. These inherent differences directly influence dehulling efficiency, flour yield, nutritional profile, and the final sensory attributes (flavor, texture, mouthfeel) of the processed oat ingredient.