Spudshed Fresh Food Market is a Supermarket Chain in Western Australia offering a full range of fresh foods.

Stagot, located in Gujarat, is India’s first company to extract native potato starch from whole potatoes. The company is one of the leading potato starch suppliers to the snacks and bakery industry in India.

Stamex International Seeds Pvt Ltd is Pakistan's leader provider of high-quality seed potatoes, representing multinational corporations and providing a wide selection of certified potato seed varieties customized to varied market needs.

Sterman Masser, Inc., is a potato grower and packer of potatoes in Pennsylvania

Stet Holland B.V., located in Emmeloord, is specialized in the development, cultivation and export of seed potatoes. Stet varieties guarantee stable high yields in a hot, continental, and Mediterranean climate.

STET Potato Ltd was formed in 2016 in the United Kingdom with the STET Holland acquisition of the KWS potato division.

Storohage Kartofler is a supplier of potatoes and other vegetables, located in Denmark.

Strang's Produce Inc. is a family potato company in New Brunswick Canada, producing table potatoes and Blue Roof potato vodka

Strohauer Farms is a 4th generation, family-owned and operated farm based in Northern Colorado. One of the farms specialties are gourmet potatoes such as fingerlings

Ecolution is a brand for premium quality potato flakes produced by Sula Plus LLC from selected fresh potatoes with excellent taste and customized properties. Sula Plus LLC is the producer of high-quality potato flakes, potato flour, dehydrated mashed potatoes.

Summit Plant Laboratories, Inc. is a large-scale, wholesale specialty micropropagation (clean-stocks) and seed health testing business.

Established in 1974 by five Southeast Idaho potato growers, Sun Glo of Idaho is an industry leader in the packaging of fresh Idaho potatoes. Since 1999 Sun Glo has been solely owned by the Crapo family.

Primos is an RPE - Idaho potato brand, sold mainly to food service companies.

Sun Valley Potatoes, Inc., based in Idaho's prime potato-growing region, is a farmer cooperative supplying 280 million pounds of Norkotah and Russet Burbank potatoes to the fresh market.

SunRain Potato Varieties is supplier of seed potatoes, able to offer over a hundred different varieties

Sunrise Potato Storage Ltd. is a family operated potato farm in Alliston, Ontario, Canada producing seed potatoes and potatoes for chipping.

Supreme Seed, which is based in Bangladesh specializes in Production, Processing, Marketing and Breeding of field crop such as potatoes and vegetable seeds.

Founded by John Rupert Szawlowski in 1910, Szawlowski Potato Farms, Inc. is now one of the largest potato farms in New England.