Grain and Oilseed Milling NAICS 3112

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Industry Summary
The 577 grain and oilseed milling companies in the US produce flours, edible oils, and breakfast cereals from grains and oilseeds. Firms also sell byproducts of the milling process as animal feed or fertilizer. Major product categories are flour milling, rice milling, malt manufacturing, wet corn milling, soybean and other oilseed processing, refining and blending fats and oils, and breakfast cereal manufacturing.
Shifts in Demand Due to Dietary Trends
Grain and oilseed milling companies can face swings in demand due to changing consumer diets and food fads.
Stricter Food Labeling Requirements
Grain and oilseed manufacturers must comply with a variety of food labeling regulations.
Recent Developments
Jun 21, 2025 - Less Healthy Breakfast Cereals
- A new study suggests ready-to-eat breakfast cereals marketed to children have changed in nutritional value over the last 15 years – but not for the better, EatingWell reports. The study – Nutritional content of ready-to-eat breakfast cereals marketed to children, published in JAMA Open Network – finds that RTE cereals now have more fat, sugar, and sodium, but less protein and fiber. Researchers examined all newly launched RTE cereals marketed to kids in the US between 2010 and 2023. (The study declined launch to include new packaging, new formulas, and completely new products, totaling 1,200 cereals.) The study found on average a 34% increase in total fat, 32% increase in sodium, and an 11% increase in sugar. Meanwhile, protein content declined from 2 grams to 1.7 grams, while dietary fiber fell from almost 4 grams to less than 3 grams. The study did not look at artificial ingredients in kids’ cereals.
- Ancient grains are making a comeback in modern commercial and home kitchens, at the expense of white flour, Food Manufacturing reports. Ancient grains are defined by the Whole Grains Council as those that haven’t been changed through breeding, and include buckwheat, amaranth, teff and Kamut, as well as seeds like quinoa known as “pseudocereals.” Food Business News reports that the US ancient grains market will grow from $90.4 million in 2022 to $142.3 million by 2028, a nearly 8% growth every year. By comparison, the all-purpose flour industry is expected to grow by only about 3% per year, according to a 2024 study. According to Brown University Health, ancient grains have more protein, fiber, vitamins, minerals and antioxidants than refined all-purpose flours. In addition to health benefits, ancient grains are more sustainable, requiring less water, fertilizer and pesticides to grow.
- President Trump’s trade policy could present an opportunity to oilseed millers as import tariffs on vegetable oils spur the US crush industry to build new plants and expand capacity, AgWeek reports. Plans for domestic expansion have been hindered because the US market has been awash in cheaper global supplies of feedstocks like used cooking oil from China, tallow from Brazil, and canola oil from Canada. However, the USDA projects that global rapeseed oil supplies will shrink by 13% over the coming year with sunflower seed oil stocks down 24%. As US imports of vegetable oils decline, domestic producers will see increased demand and purchase more corn, soybeans, and other oilseeds from US farmers, who could see their export markets dry up if foreign nations, notably China, retaliate with tariffs of their own.
- Producer prices for grain and oilseed milling firms declined 2.3% in May compared to a year ago, after falling 6.9% in the previous annual comparison, according to the latest US Bureau of Labor Statistics data. Industry producer prices have been trending downward since peaking in mid-2022 when Russia’s war in Ukraine disrupted the agricultural supply chain. Employment by the industry grew 1.8% year over year in April, while average wages at food manufacturers rose 3.3% YoY in May to $23.98 per hour, down slightly from their peak in January, BLS data show. Payroll growth amid declining sales and prices for producers puts stress on grain and oilseed millers margins.
Industry Revenue
Grain and Oilseed Milling

Industry Structure
Industry size & Structure
The average grain and oilseed milling company has about 117 employees, operates at 1-2 locations, and generates $244.7 million in annual revenue.
- The grain and oilseed milling industry consists of about 577 companies that employ 67,400 employees and generate $141.2 billion in annual revenue.
- There are about 205 flour milling firms with over 15,650 employees and about 60 rice milling firms with about 5,500 employees.
- There are about 25 malt manufacturers with about 810 employees and about 75 breakfast cereal manufacturers with 11,850 employees.
- There are about 30 wet corn milling companies with about 7,715 employees and about 100 soybean and other oilseed processors with 9,175 employees.
- About 95 fats and oils refining and blending companies have about 8,590 employees
- The grain and oilseed milling industry is highly concentrated - the top 50 companies account for 89% of industry revenue.
- Large US flour milling companies include Ardent Mills. Archer Daniels Midland, Grain Craft, Miller Milling, Bay State Milling Co, and General Mills. Large US producers of edible oils include Archer Daniels Midland, Bunge, Cargill, and CHS.
Industry Forecast
Industry Forecast
Grain and Oilseed Milling Industry Growth

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