American Society of Plumbing Engineers
Non-profit OrganizationsIllinois, United States51-200 Employees
ASPE is an international nonprofit association for professionals involved in the design, specification, and inspection of plumbing systems. It advances the science of plumbing engineering and supports the professional development of its members, with the aim of protecting public health, welfare, and safety. The organization serves a global community of practitioners active in the field. Based in Rosemont, Illinois, ASPE provides education and collaboration within the plumbing engineering industry. In March 2026, the organization announced that REHAU joined its Affiliate Partner program, reflecting ongoing partnerships with industry manufacturers. It maintains a publications program through the Plumbing Engineering Design Handbook, and hosts events such as a biennial Convention & Expo that bring together engineers, designers, specifiers, and contractors.