ISI Membership Program - Institute for Sustainable Infrastructure

Membership Program

Join a Community Shaping the Future of Sustainable Infrastructure

ISI membership helps organizations demonstrate a commitment to sustainable, resilient, and equitable infrastructure. Our members represent a diverse network of private companies, public agencies, academic institutions, and individuals working to advance better infrastructure outcomes around the world. We realize that no single individual or organization can drive global change alone, which is why we value collaboration, consensus building, and meaningful relationships across the infrastructure industry.

Through membership, ISI helps organizations and communities navigate evolving infrastructure challenges while strengthening their leadership in sustainability and resilience. Members gain access to recognition opportunities, preferred pricing on ISI programs and resources, and engagement with the broader ISI community — all designed to support more sustainable infrastructure outcomes.

What are the Benefits of ISI Membership?

ISI membership connects you to the tools, people, and opportunities that drive meaningful change.

Save with preferred pricing — ISI members receive reduced rates on ENV SP credentialing and maintenance, Envision verification for projects, Envision Supplier Directory listings, and more.

Join a growing global network — ISI members collaborate across sectors to build Envision expertise and support sustainability goals.

Gain visibility & recognition — ISI members are distinguished as leaders in sustainable infrastructure and can further demonstrate their commitment by earning designations such as Envision Supported Agency or Envision Qualified Company.

Access exclusive resources & opportunities — ISI members contribute to the evolution and adoption of Envision by participating in forums, committees, events, and more.

*Note: Becoming an ISI Member and becoming an Envision Sustainability Professional (ENV SP) are not the same.

ISI membership provides organizations and individuals with engagement opportunities, recognition programs, and preferred pricing on other offerings (including ENV SP training).

The ENV SP credential is a professional designation for individuals to demonstrate knowledge of the Envision Sustainable Infrastructure Framework. Click here to learn more about the ENV SP credential.

Membership Types & Fees

ISI offers membership options designed to support both individuals and organizations of various types and sizes.

Private Company

Private company membership is available to corporations and trade or professional associations. The annual fee depends on the size of the organization as detailed below.

Private Company Size	Annual Fee
< 50 employees	US$500
51-100 employees	US$1,500
101-500 employees	US$2,500
> 500 employees	US$3,500

Public Agency

Public agency membership is available to federal, state, provincial, regional, and local government agencies. The annual fee is waived upon approval.

Academic Institution

Academic institution membership is available to universities, colleges, and other higher education programs. The annual fee is waived upon approval.

Individual

Individual membership is available to infrastructure professionals who are not otherwise affiliated with a private, public, or academic membership. The annual fee is US$20.

*If your employer or university is already an ISI member, you can access the membership benefits at no additional cost by connecting your user account to your organization’s membership account in your dashboard.

How to Become an ISI Member

Follow the steps below to set up a membership for yourself or on behalf of your organization, or submit a request for additional support from our membership team.

*Note: If your employer or university is already an ISI member, you can access the membership benefits at no additional cost by simply connecting your user account to your organization’s membership account in your dashboard.

Create your free ISI user account, if you do not already have one.
Select “Become a Member” from your account dashboard, and submit the membership application.
Wait for a follow-up email to finalize and confirm your membership!

Are You a Student?

Click below for additional information about account registration, free membership, and more.

Envision for Students

Click to request additional support from our membership team!

Featured Opportunities

Envision Supplier Directory

The Envision Supplier Directory helps project teams connect with suppliers that provide materials and services aligned with the Envision Sustainable Infrastructure Framework. Any organization that manufactures and/or supplies sustainable solutions, materials, and/or services can purchase listings in the directory, but paying ISI members get complimentary and discounted listings.

Envision Forums

ISI’s collaborative forums bring together practitioners who are putting Envision to work in the real world. Focused by sector or owner type, these groups provide a platform to swap ideas, compare notes, and crowdsource smarter solutions. Explore how these communities of practice are empowering practitioners to drive meaningful change across the built environment.

Additional Resources

ISI Member Directory

View our ISI Member Directory to explore the public agencies, private companies, and academic institutions who have joined our Envision community.

ISI Charter Members

View our ISI Charter Members who made an early commitment to support the development and implementation of Envision.

Envision Supported Agencies

Public-sector ISI members can be recognized in our directory of Envision Supported Agencies by using Envision and employing at least one Envision Sustainability Professional (ENV SP) within their workforce.

Envision Qualified Companies

Private-sector ISI members can be recognized in our directory of Envision Qualified Companies by using Envision and employing at least one Envision Sustainability Professional (ENV SP) within their workforce.

Other

Click the folder below to view additional Membership resources.