Compass Minerals is the parent company of six production and marketing companies in the United States, Canada, and the United Kingdom.


North American Salt Company sells salt and other minerals to customers throughout the United States. The company’s products include mined rock salt for highway and consumer deicing, and high-grade branded and private label mineral products for consumer and industrial uses.

Sifto, one of Canada’s favorite brands, is well-known for its high-quality food salt, water care minerals, agricultural minerals, and many other consumer and industrial salt and mineral products. Sifto operates the world’s largest rock salt mine, making it a leading producer of salt for highway and consumer deicing.


Great Salt Lake Minerals Corporation is North America’s leading producer of sulfate of potash (SOP), a vital specialty fertilizer for fruits, vegetables, tree nuts and other high-value crops. From its solar evaporation facility at the Great Salt Lake in Utah, it produces organic-approved nutrients for growers in North America, South America, and regions of the Pacific Rim.


Salt Union is the United Kingdom’s largest supplier of rock salt and specialty products used for highway deicing. It operates the U.K.’s largest rock salt mine and oldest working mine in Winsford, Cheshire.


DeepStore provides records management services to businesses throughout the United Kingdom. Its primary storage facility is located 500 feet below ground in the company’s 160-year-old rock salt mine in Winsford, Cheshire and offers the only secure facility of its kind in the U.K. Its above-ground locations offer same-day-retrieval service to London.


Pristiva is an innovative company solely focused on the North American salt water pool market. Pristiva products, available only through pool professionals, are the only products specifically designed to comprehensively meet the unique needs of salt water pools.