What do we call the purchasers of a good or service in plural form?

The term for purchasers of a good or service in plural form is "customers." This term broadly refers to individuals or entities that buy goods or services from a business. Customers can be end-users who directly consume the products or businesses purchasing for resale (business-to-business transactions).

In contrast, the word "clients" typically implies a more personalized service relationship or professional services, such as consulting or legal advice, rather than just a transaction for goods. While "consumers" aptly describes individuals who use goods and services, it does not specifically denote their role as purchasers. The option that combines clients and customers may imply a broader scope, but it does not specifically address the direct aspect of purchasing goods or services. Therefore, "customers" is the most precise term for the plural form of purchasers in this context.