The French potato company JB Bernard supplies seed potatoes both for commercial production and also directly to consumers.

JPB is a global leader in the supply of food and food products. They have specialists for fresh, frozen, commodities and consumer Goods. They export high-quality products from preferred suppliers from all corners of the world and designed their own quality control mechanism.

JS Farms has been one of the finest producers of potato seed in India since 50 years which is located in Jalandhar in the state of Punjab.

Kalpataru Agro Biotech is Micro-Enterprise Tissue culture Firm in the year 2007.

Kevian Kenya is involved in the production of various types of food and beverage products, such as natural fruit juices, bottled drinking water, carbonated soft drinks, tomato sauce, chilli Sauce, ketchup and soups.

KF Biotech is an Indian producer and supplier of seed potatoes derived from tissue culture based technology

Khazaee Corporation is an Iranian Agricultural, Livestock, and Cold Storage Supplier. They have specialised cold storage for potato tuber.

Kisan Botanix Ltd. (KBL) is a leading a leading producer of high quality Potato Seed and Table Potato grower in Bangladesh.

Kisima Farm Ltd. is one of Kenya's leading producers of certified seed potatoes.

Kleinjan's Aardappelhandel B.V. houdt zich bezig met de handel en wandel in pootgoed, consumptie-aardappelen en frites aardappelen.

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

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.

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

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.

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

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.

Larsviken, is located in the small village of Viken in northwestern Skåne. The heart of their company is agriculture, but there is also a farm shop with an associated online shop, sales of seed potatoes, onions, flower bulbs and tubers on the farm.