The Institute for Sustainable Infrastructure is a not-for-profit, public interest organization dedicated to sustainable infrastructure and to the means of achieving sustainable projects at the local, regional, state and federal levels of government. Membership in ISI is open to:

  • Professional Service Firms, Designers and Consultants
  • Corporate Entities, Contractors, Suppliers, Manufacturers
  • Trade and Professional Associations
  • Governmental Entities Including Units of Local, Regional and State Governments, Public Utilities, and Federal Government Agencies
  • University/College Professors and Students
Charter Member Application and Subscription Schedule

For Businesses, Firms, Trade and Professional Associations, and Individuals with an institutional commitment to sustainable civil infrastructure, a desire to make a significant investment in the development of a new rating tool to help communities establish infrastructure priorities, and a dedication to the public interest, Click here...

Sustaining Membership Application and Dues Schedule

For Businesses, Firms, Trade and Professional Associations, and Individuals with operational business interests in better decision making at all levels of management and government for sustainable civil infrastructure projects, Click here...

Trade and Professional Association Sustaining Membership Application

For Trade and Professional Association Executives and Managers serving industry, government, academic and other constituencies with significant interests in sustainable infrastructure investment and decision making, Click here...

Public Sector Membership and Benefits Statements

For Public Sector Agencies and Government Professionals at all levels of government on the front lines of sustainable civil infrastructure decision making, Click here...

University/College Professors and Students Membership and Benefits Statement

For Professors, Academic Researchers, and Students with scholarly and professional interests in sustainable civil infrastructure development and decision making, Click here...