Member Companies

Programs of the International Plant Nutrition Institute (IPNI) are funded by member companies that are dedicated to the efficient and responsible use of fertilizers in plant nutrition. Membership in IPNI is composed of companies that are basic producers of one or more of the major plant nutrients… nitrogen, phosphate, potash, and sulfur. Large retail organizations that do not qualify as basic producers may qualify as associate members, while certain other organizations qualify as affiliate members. A listing of current members appears below.