Board of Directors

The ISI Board of Directors is comprised of seven elected directors. They meet in person several times a year and regularly by teleconference.

John Williams
Chairman and CEO, Impact Infrastructure, Inc.;

ISI Chairman of the Board

John Williams has nearly 40 years of experience as an advisor to infrastructure and building development programs, 16 years as a principal owner of an international architecture and engineering company, and 17 years as an adjunct faculty member at Columbia University. For the past 7 years he has been CEO of Impact Infrastructure, Inc. (ii), a Software as a Service platform company based in New York City. ii’s Autocase software leverages cloud-based computing to bring credible, objective, and affordable economic assessments to infrastructure and building investments.

He developed a series of awarding winning business practices including a framework for determining the value of GREEN. He is a member of the LA Metro Transit Sustainability Council, a Subject Matter Expert for Sustainability Accounting Standards Board (SASB), served as Co-Chair of the West Coast Infrastructure Exchange Business Standards Committee, and serves as a Trustee for the New York Foundation for the Arts.

Robert Brustlin

Chairman VHB

Bob Brustlin served VHB as President and CEO for 15 years. He transitioned the reins to new leadership in 2015, while remaining Chairman of the Board of Directors and active in companywide initiatives. In addition, Bob has been fostering the firm’s generational company philosophy which focuses on leaving the company in a better condition than it was received; this philosophy balances firm business success with its focus on people – their careers, volunteerism, and giving back to communities.

As current Chairman, Bob leads the governance of the firm, which now includes 1,400 employees with revenues exceeding $250M. VHB has 30 offices from Maine to Florida with a focus on growth in the major metro areas of the nation’s megaregions.

Bob also leads VHB’s quality program and is involved in its sustainability programs. Bob has been a champion of sustainability for all forms of landuse since his graduate education in Land Planning in the 70’s. He led VHB’s internal corporate social responsibility program, raising the bar for sustainability inside the company. He has been an active participant in LEED and Envision, bringing a sustainability focus to large and complex urban development and transportation projects over the years.

Martin Janowitz

Vice President, Discipline Leader Sustainable Development

Marty Janowitz is Vice President, Sustainable Development at Stantec, a Canadian-based design, engineering, architecture and environmental planning firm with more than 25,000 professionals based in 600+ offices across North America and internationally. He has more than 30 years’ experience consulting nationally and internationally in environmental and sustainability planning, policy, community and resource management, design and infrastructure. He guided Stantec’s efforts to become an exemplary model of sustainability in all its operations and to develop an integrated sustainability consulting practice.

Marty has played a prominent role in the sphere of integrated sustainable infrastructure serving on the Advisory Board of the Zofnass Program for Sustainable Infrastructure at Harvard University. An Envision Sustainability Professional, Verifier and Trainer, he is also a member of the Envision Review Board including during the development of Envision v3. He served as senior advisor on the first three Canadian projects submitted for Envision verification (all Platinum). Marty has trained and presented widely on Envision, and the business case for sustainable infrastructure. A prime sustainability advisor and consultant for municipal, regional and federal governments and tier one corporations Marty was selected to be a member of Canada’s Clean 50 – outstanding contributors to sustainable development and clean capitalism.

Marty holds a Masters’ Degree in Environmental Studies from Dalhousie University and a B.A. in Sociology from Brandeis University.


Gary Lee Moore

City Engineer,
City of Los Angeles

Gary Lee Moore is the City Engineer for the City of Los Angeles, leading a world-class organization of 1000 engineers, architects, surveyors and support staff.

With more than 33 years of public service, he is an accomplished executive and professional engineer, and a recognized leader in bringing sustainability practices into the design and construction of City projects.

Since being named City Engineer in 2003, Moore has overseen the completion of 1,700 projects totaling more than $6.0 billion.

He is a registered Professional Civil and Mechanical Engineer in California, serves on a number of civic and professional boards.

He is a graduate of the University of California, Los Angeles and a die hard Dodger fan.


Michael Mucha

Chief Engineer and Director, Madison Metropolitan Sewerage District

Michael Mucha is the Chief Engineer and Director for the Madison Metropolitan Sewerage District. He has dedicated his 28-year career in local government to building public trust through sustainability. “Anything can be accomplished if you have the public working with you.”

Michael is a professional engineer, with his BS in Civil Engineering from the University of Wisconsin Milwaukee and a Master’s in Public Administration from the University of Washington-Seattle

Michael is chair for the US Water Alliance’s One Water Council He also teaches courses in sustainable infrastructure management and adaptive leadership at the University of Wisconsin and Edgewood College.


Gregs Thomopulos

Chairman Emeritus
Stanley Consultants

Gregs Thomopulos has over 52 years of experience in the engineering and construction industry. He has a B.S. (with highest distinction) in Civil Engineering from the University of Kansas; an M.S. in Structural Engineering from the University of California, Berkeley and an Honorary Doctor of Science from the University of Iowa. He joined Stanley Consultants in 1965 in Muscatine, Iowa, as an Engineering Intern. He was President & CEO of the firm from 1987-2007; Chairman of the Board from 2007-2017 and Chair Emeritus from 2017.

Mr. Thomopulos is a Licensed Professional Engineer in 13 states and Puerto Rico. He is a Fellow and Past Chairman of the American Council of Engineering Companies (ACEC); Past President of International Federation of Consulting Engineers (FIDIC); a Fellow of the American Society of Civil Engineers (ASCE); a member of the National Society of Professional Engineers; a member of the University of Iowa Foundation Board of Directors and a member of the University of Kansas Endowment Association Board. He was a member of the U.S. Department of State Overseas Building Operations Industry Advisory Panel and the Senior Executive Group of the Society of American Military Engineers (SAME). He is a Life Board member of Goodwill Industries of Eastern Iowa.

Mr. Thomopulos has received numerous honors and awards and is the author of more than 56 papers and presentations. Mr. Thomopulos is married with three children and six grandchildren.

Paul Zofnass

President, Environmental Financial Consulting Group

Paul Zofnass is President of the Environmental Financial Consulting Group (EFCG), a firm he founded in 1990 to provide strategic and financial advice to the environmental and infrastructure engineering/consulting (“e/c”) industry. EFCG has served as an advisor to over 200 e/c firms over the past 30 years.

In addition to his professional role in the environmental field, Paul is an environmental steward. He created the Zofnass Sustainable Infrastructure Program at Harvard to develop a rating system to measure sustainability as it applies to major civil infrastructure This rating system, known as “Envision”, has been adopted by ASCE, ACEC, and APWA. It is marketed and made available to public agencies, by the Institute for Sustainable Infrastructure and used by over 50 city and state agencies and 70 projects in the US and abroad. Prior to this, Paul assisted Harvard in establishing its Environmental Studies Program in the 1990s and funded its first Scholarship; initiated and funded the Zofnass Tree Identification Program for NYC’s Central Park; created the Zofnass Family Preserve/Westchester Wilderness Walk in Pound Ridge, NY, a 200 acre preserve with 10 miles of hiking trails; and donated the permanent New England Forest Exhibition at the Harvard Museum of Natural History.

Paul is an alumnus from Harvard College, Harvard Law and Harvard Business School.



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