About ISI

Together, We Can Envision a Sustainable World

The Institute for Sustainable Infrastructure (ISI) is a nonprofit education and research organization dedicated to advancing sustainable, resilient, and equitable civil infrastructure. Through the Envision Sustainable Infrastructure Framework, ISI provides the tools, resources, and roadmaps needed to help communities, governments, and businesses make better infrastructure decisions.

Based in Washington, DC, ISI was established in 2010 by the American Council of Engineering Companies (ACEC), American Public Works Association (APWA), and the American Society of Civil Engineers (ASCE). In response to the need for a comprehensive sustainability framework and rating system for civil infrastructure, ISI collaborated with the Zofnass Program for Sustainable Infrastructure at the Harvard University Graduate School of Design to develop Envision.

Our Vision

A world where all infrastructure is sustainable, resilient, and equitable.

Our Mission

Advance sustainable infrastructure by providing education, credentialing, research, project verification, and collaborative resources that help communities and organizations make better infrastructure decisions.

Our Impact

Protect the environment, enhance human health and well-being, and support economic prosperity.

Our Programs

ISI develops, manages, and administers Envision, a holistic sustainability framework and rating system that enables a comprehensive examination of civil infrastructure’s sustainability and resiliency. Our programs help government agencies, consultants, contractors, and other stakeholders navigate the complexities of delivering infrastructure that creates lasting value for communities and the environment.

Education & Credentialing

We train and credential professionals through the Envision Sustainability Professional (ENV SP) credential and continuing education programs, helping public- and private-sector leaders, students, and other stakeholders develop the knowledge and skills to advance sustainable infrastructure.

Membership

We support a growing community through membership programs for private companies, public agencies, academic institutions, and individuals, providing access to resources, professional development opportunities, and other benefits.

Verification

We evaluate and verify projects using the Envision framework and rating system, which assesses all types of public and private infrastructure projects and recognizes their sustainability and resiliency achievements with Envision Verified, Silver, Gold, and Platinum designations.

Research

We advance research and education that expand understanding of sustainable infrastructure and support the integration of Envision into academic programs and professional practice.

Engagement

We connect and engage the sustainable infrastructure community through events, forums, communications, and other opportunities that foster knowledge sharing, collaboration, and greater awareness of sustainable infrastructure and Envision.

Our Envision Community

Advancing sustainable infrastructure is a shared responsibility. Our work is grounded in strong partnerships and purposeful collaboration with organizations and individuals across the infrastructure industry and around the world. Our growing network of Envision supporters contributes expertise, experience, and diverse perspectives to advocate for sustainable infrastructure and accelerate positive change at the local, state/provincial, and national levels. By working together, we can help communities navigate the complexities of delivering infrastructure that creates lasting value for people and the planet, while advancing solutions that protect the environment, enhance human health and well-being, and bolster economic prosperity.

ISI Founders

Envision Program Partners

Strategic Alliances

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Promotional Collaborators

Additional Resources

ISI Board of Directors

ISI’s Board of Directors provides leadership and strategic guidance to advance ISI’s mission and support the continued growth of sustainable infrastructure.

About Envision

Through the Envision Sustainable Infrastructure Framework, ISI provides the tools, resources, and roadmaps needed to help communities, governments, and businesses make better infrastructure decisions.

ISI & Envision Brand Guide

The ISI Brand Guide provides tools and guidelines for accurately representing the Institute for Sustainable Infrastructure and Envision in communications, presentations, and publications.

ISI & Envision News

Stay up to date with what’s happening across the Envision community, including announcements, opportunities, events, project spotlights, and more.

ISI & Envision Speaker Request

Our team provides expertise in sustainable and resilient infrastructure, grounded in practical experience with projects across sectors and geographies. Whether you’re hosting a conference, training, webinar, or executive briefing, we offer engaging, actionable presentations tailored to your audience. Tell us a bit about your event, and we’ll match you with the right speaker!