WASHINGTON, D.C. (June 4, 2015) — The Institute of Sustainable Infrastructure (ISI) announced today it has opened its Sustaining Memberships to private sector firms in engineering, planning, design and construction organizations. The ISI Sustaining Membership is designed for companies to be recognized publicly for their competency and experience in the development of sustainable infrastructure projects.
Sustaining memberships now available to engineering, planning, construction and design firms