The State Seed Department is the state’s official seed certification agency. The Field Seed Program is responsible for management of all processes involved in the production of certified seed from field inspection

Kettle chips manufacturer in New York State with distribution mainly in the North Eastern United States

Northern Girl (Maine) offers beets, potatoes, carrots and vegetable medleys, including some partially processed products. Northern Girl also offers Organic French Fries

Northern Konstar (Seed) Potatoes Ltd. started of as a premium seed potato producing company in 2000.

The Northern Philippines Root Crops Research and Training Center (NPRCRTC) is one of two organisations in the Philippines to spearhead, coordinate, and implement the national root crops research, development, and extension programs.

NovaSeed performs research and genetic development of potato seeds; they search for varieties with special features, inspired by today's demanding markets.

Nuestra Señora de Ocon Sociedad Cooperativa is a Potato Producer from Spain.

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

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.

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

Okray Family Farms produces over 1800 acres of potatoes and over 5900 acres of sweet corn, green beans, peas, soy, and maize annually. They are closely affiliated with Indian Hills Cranberry, LLC.

Old Oak Farms offers a full line of potatoes including gold, red, russet and jumbo potatoes, along with seasonal specials such as baby potatoes.

Ontario Potato Dist. (Alliston) Inc.'s primary activity is potato farming, packing, storage, and distribution. Since its inception almost 50 years ago.

OSPGA is an organization of Ontario potato seed growers and breeders who work collaboratively to support the SPUD Unit through the University of Guelph, liaison with CFIA inspectors regarding seed certification and with OMAFRA to promote the best quality Ontario grown seed with stewardly production practices.

The Oregon State University (OSU) and its extension service devote a significant amount of effort to potato research, in areas such as variety development, Crop Management, Weed Control, Disease Control and Insect Control.

P J Lee and Sons - Highflyer Farms, are one of the largest individual potato producers in the UK, serving chip shops predominately.

Palacios Escutia S.L. is a Spanish company dedicated to the production, exportation, and importation of fruits and vegetables since 1983.