Kitchen Farms has been growing, bagging, and shipping potatoes since 1909. Kitchen Farms offer several different types of potatoes: Whites, Russets, and Reds. All varieties are available in 5 lb., 8 lb., 10 lb., 15 lb., 20 lb., and 50 lb. bags.

Kleinjan's Aardappelhandel B.V. is engaged in the trade and trade in seed potatoes, consumption potatoes, and chips potatoes.

Great care is taken to ensure that Klondike Potatoes™ are the highest quality potatoes on the market.

Knutzen Farms grows and packs consistently premium quality red, white, and yellow potatoes from their farm locations in the verdant Skagit Valley.

OÜ Koorti Kartul is a joint venture of 2 potato growers in Estonia, Märt Laansalu and Janek Lass, created to offer potatoes and vegetables both washed and peeled. Koorti Kartul OÜ was founded in 2005

Köyüm Doğal is a producer of natural foodstuffs based out of Turkey.

Kroeker Farms, as it is known today, is one of Canada’s leading potato producers and Manitoba’s largest grower of organic potatoes. It is widely known and respected for its progressive approach to tillage, land stewardship, innovation and quality.

Kruizinga Fresh Produce purchase the potatoes ourselves and process them into a ready-to-cook product. They do this in their own potato peeler, where they process the potatoes fresh every day.

KWS Potato B.V. is a company focusing on breeding, production and marketing of seed potatoes.

KWS SAAT SE is a European independent and family-owned company based in Germany that focuses on plant breeding, with activities in about 70 countries.

The mission of Patate Lac-Saint-Jean, a cooperative of 5 member farms in Quebec Canada, is to research and develop potato cultivars to market quality seed potatoes to its customers.

La Rebelle a été créée en 2011 par Eric DELIMBEUF, elle regroupe dix producteurs répartis sur toute l'île, principalement localisés sur le canton nord, une terre propice à la culture par son microclimat.

Lal Teer Seed Ltd. is the largest producer of seeds in the private sector in Bangladesh. It is a research-based company which develops and produces high yielding, both hybrid and open pollinated seeds

Landjuweel B.V. is a potato packer in the Netherlands 

Landun Xumei Foods Co. Ltd is a potato processing company in China. The company produces frozen french fries, potato specialties and dehydrated potato products (potato flakes, and flour).

Lane farm is specializing in Generation 3 (FY4) certified seed potatoes. Seed in grown in compliance with Oregon's strict seed certification standards, and this farm resides in an "isolated district", reducing disease and improving crop quality.

Larsen Farm grows, store, process, and even transport their own potatoes, they can ensure the highest quality and tightest costs at every step of the process.