Our Team

Delta Institute is a 501(c)(3) organization formed in 1998 that envisions a region in which all communities and landscapes thrive through an integrated approach to environmental, economic, and social challenges. Working with our partners, we identify opportunities for environmental solutions and design, test, and share solutions that yield social, environmental, and economic benefits for communities.

Delta is committed to full integration of diversity, equity, and inclusion (DEI) into all internal processes and structures for our board and staff, and external processes and structures for engaging with our partners, communities, stakeholders, and supporters. Learn more about our DEI commitment, DEI committee’s executive summary, and more by visiting the link below.

Mackenzie Manley Buchek

Senior Associate, Finance and Operations

Claire Costelloe

Assistant, Programs

Kevin Dick, LEED AP O+M

Senior Advisor

Jack Eskin, AICP

Lead, Programs

Sidney (Sid) Freitag-Fey, CFRE

Director of Development and Communications

Helen M. Hardy

Chief Financial Officer

Olga Lyandres, PhD

Senior Specialist, Programs

Reilly Manz

Associate, Programs

Patrick T. Murphy

Lead, Development and Communications

Katherine Schultz

Senior Lead, Finance and Operations

Delta Institute’s governing Board of Directors provides oversight and management of Delta Institute. Board Directors serve up to two terms of three years each (for six years total) and participate in at least one of our three standing Committees: Development; Finance; and Governance and Nominating. Our Board adheres to best practices in nonprofit governance and signs an annual participation agreement outlining their roles and responsibilities to Delta Institute, as well as identifying any conflicts of interest that may impact their service.

Jon Cheffings

EVP, Strategy, SCC&M

Tammi Davis

Board Secretary
Manager of Supplier and Workforce Diversity, Obama Foundation

Jessie Deelo

Founder, Deelo Consulting Services

David Freed

Director of Advanced Analytics, Automation and Sustainability at MSI Express, Inc. & Executive Partner, HCI Equity Partners

Niharika Hanglem

Program Director, Ed Kaplan Family Institute for Innovation and Tech Entrepreneurship at Illinois Institute of Technology

Allison Hannon Holly, MBA

Board Treasurer; Finance Committee Chair
Portfolio Manager, Product Strategy, Americas, Onshore Wind, GE Renewable Energy

Mike Harrington, LEED GA

Assistant Director at The Tishman Environment and Design Center, New School

Kevin Kalus

Market Executive – Illinois Middle Market, JPMorgan Chase

Ann McCabe

Development Committee Chair
US Program Director, Regulatory Assistance Project (RAP)

Julie Rizzo

Founder and CEO, Recycled Granite

Vanessa Roanhorse

CEO, Roanhorse Consulting LLC

Sam Schiller

Board Chair
Founder & CEO, Carbon Yield

Sanjiv Sinha, PE, PHD

Board Vice Chair; Governance and Nominating Committee Chair
Senior Vice President, Environmental Consulting & Technology, Inc.

David South

Senior Principal, Energy & Utilities Practice, West Monroe Partners

Lindsey Sullivan, JD

Director of Operations and CCO at Blueprint Local Investments

Ethelbert Williams

Head of eCommerce, US Customer Development, Johnson & Johnson Consumer Health 

The Delta Emerging Leaders (DELs) serve as the official associate board of Delta Institute and advance Delta’s mission by expanding its network of supporters, donors, and partners through events and initiatives that engage new and diverse audiences. Every year, the DELs host a live, crowd-funding pitch competition called BOOST for sustainable start-up businesses that help make Chicago a thriving, environmentally conscientious city to live and work in.

Amal Agharkar

Senior Environmental Consultant, Trinity Consultants

LIZ ALEXANDER

DELs Outreach Committee Chair and DELs Liaison to the Governance and Nomination Committee
Senior Consultant – Energy and Utilities, West Monroe Partners

KELLY AVES

DELs Acting Secretary
Policy Advisor, Illinois Commerce Commission

ASHLEY BAKELMUN

DELs Programming Committee Chair and DELs Liaison to the Development Committee
Managing Director, RW Ventures, LLC

DEREK BARTHEL

Data Sourcing Lead & Employee Engagement Manager, HERE Technologies

Chloe Bell

Law Student, Chicago-Kent College of Law
Law Clerk, U.S. EPA

Julia Buford

Senior Financial Analyst, PFM

TAYLOR BRADSHAW

Graduate Student, Northwestern University, Institute for Sustainability and Energy

DIANA DE LA TORRE

Supervisor of Chicago Youth Service Corps, Back of the Yards Neighborhood Council

MADELINE DEMO

DELs Treasurer and DELs Liaison to the Finance Committee
Safety/Continuous Improvement Coordinator at Carlisle Construction Materials
MBA/MPH Candidate at UIC

Tessie Ebenja

Analyst, Cook County Government

Hunter Federle-McCabe

Product Development Analyst, McMaster-Carr Supply Company

Darby Hopper

Director of Speechwriting, Governor JB Pritzker

CLAIRE HOWARD, EIT

Assistant Engineer, Provost & Pritchard Consulting Group

liston jackson

Senior Consultant, Energy & Utilities at West Monroe Partners

Rahul Kulkarni

Student, University of Chicago Harris School of Public Policy

JULIA MASTERS

Equitable Engagement Manager, Kim Lundgren Associates

CHRISTOPHER NEWMAN

DELs Co-Chair
Data Scientist / Database Developer

KYLE PREUSS

DELs Communications Committee Chair and DELs Liaison to the Development Committee
Senior Account Manager, Amadeus

Alicia Russo

Analyst, Invenergy

JOAN SMEDINGHOFF

Digital Communications Senior, Chicago Metropolitan Agency for Planning

JEROME SMITH

Client Engagement Manager, Emissary

NATALIE SPETTER

DELs Co-Chair
Graduate Student, Loyola University Chicago
School of Environmental Science and Sustainability

SARAH WALWEMA

Urban Planner at GRAEF

ANNA WITHERS

Fundraising Professional

MARGOT ZUCKERMAN

Senior Buyer – Ingredients Procurement, Kraft Heinz

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