Nyle Systems is a growing, inventive firm that creates, manufactures, and sells heat pump-powered, energy-efficient devices. Specifically, they manufacture industrial equipment for lumber drying, food dehydration, and heat pump water heating.

O. C. Schulz & Sons is a family-owned and operated diversified potato farming operation in the Red River Valley of North Dakota.

O’Donnells Crisps is an potato chips manufacturer from Ireland

Oakley's Premium Fresh Vegetables ltd is a producer of Vegetable products based out of New Zealand

Oakville Produce (formerly known as the Moraitis Group) was the biggest fresh potato business in Australia, good for 23 per cent of Australia's AU$625 million potato market. in May 2016, the company went into receivership and is currently for sale.

Oasis Food Processing Systems is one of the foremost organizations betrothed in manufacturing a broad assortment of products including Automatic Banana Chips Making Plant, Batch Type Banana Chips Making Plant.

The Oberlin Filter Company offers filtration solutions and filtration media. Their portfolio includes filter units suitable for filtration of frying oil.

Oberlin Filter Ltd. was founded as a subsidiary of Oberlin Filter Company in 1999 to further develop their market in the United Kingdom, Ireland and throughout Europe including the Netherlands, Belgium and France.

Ocado Group is a UK based technology company admitted to trading on the London Stock Exchange. It provides end-to-end online grocery fulfillment solutions to some of the world's largest grocery retailers

OCEANWORLD EXPORT,” headquartered in Surat, Gujarat, India, is engaged in manufactur and export of dehydrated vegetables and spices. They exports potato flakes, dried potato powder and other vegetables globally.

Ochoa Foods is one of the smaller french fry manufacturers in the US. This family owned company operates one french fry processing plant located in Washington, as of 2008 in a joint venture with Lamb Weston (Conagra Foods), named Lamb Weston BSW.

OctoFrost is a globally recognized supplier of food processing equipment with a deep focus on thermal treatment such as blanching, cooking, chilling, and IQF freezing.

Oddball Organics™ potatoes are just as fresh and nutritious as regular organic potatoes, only difference being odd shapes or minor skin blemishes or minor mechanical damage

ODTIN Food Solutions Pvt. Ltd. (OFSPL) is engaged in manufacturing and exporting Food Processing & Packaging Machines, Heating Systems, Packaging Material, Industrial Plants, Ripening Chambers and Cold Storage.

Oerlemans Foods is a specialised manufacturer and supplier of fresh frozen vegetables, fruit and potato products.

Off The Eaten Path produces snacks made from real chickpeas and vegetables.

RE PIETRO s.r.l. is an Italian manufacturer of machines and plants for the agro-food industry, including machinery for puffed rice snacks.

Ohalo Genetics is a research service company for accelerate genetic gain toward crop improvements that sustainably support the world’s growing population.