Cargill is one of the largest privately held corporations in the United States and is involved in various industries, including sunflower oil manufacturing. They produce a wide range of sunflower oils, including soybean oil, canola oil, sunflower oil, and palm oil.
Bunge is a global agribusiness and food processing company based in the United States. They are engaged in the production of sunflower oils such as soybean oil, sunflower oil, and canola oil, among others.
 Wilmar International is a Singapore-based agribusiness company that is one of the largest palm oil producers and traders in the world. They are involved in the production of a wide range of sunflower oils, including palm oil, soybean oil, and sunflower oil.

Malaysian conglomerate with interests in various industries, including sunflower oil production. They are known for their palm oil production, and they also produce other sunflower oils such as soybean oil and sunflower oil. is a Swedish-Danish company specializing in vegetable oils and fats. They produce a range of sunflower oils and fats for various applications, including food processing and the bakery industry.

Golden Agri-Resources is an Indonesian palm oil company and one of the largest palm oil plantation owners and processors globally. They are primarily focused on the production of palm oil and its derivatives.

These are just a few examples of notable sunflower oil manufacturing companies. Please note that the landscape may have changed since my last update, and there are likely many more companies involved in sunflower oil production worldwide.