Natural Products Association | 12,595 followers on LinkedIn. NPA is the largest and oldest nonprofit organization dedicated to the tens of thousands of members we represent. | The Natural Products Association (NPA), founded in 1936, is the largest and oldest nonprofit organization dedicated to the natural products industry. NPA represents over 1,900 members accounting for more than 10,000 retailers, manufacturers, wholesalers and distributors of natural products, including foods, dietary supplements, and health/beauty aids. As the leading voice of the natural products industry, NPA’s mission is to advocate for the rights of consumers to have access to products that will maintain and improve their health, and for the rights of retailers and suppliers to sell these products.