Meet our Team


Stephen M. Pratt


Stephen M. Pratt is the President of Impact Catalysts. Prior to launching Impact Catalysts in 2016, he was a Partner and Director of Advisory Services at Root Cause. Steve has more than two decades of experience in nonprofit management, having served as CEO of two direct service organizations, two capacity-building intermediaries, and a scholarship foundation. Steve has also had a role in the founding of six social impact ventures including Boston After School & Beyond and Bridgespan’s Bridgestar Initiative.

One of these start-ups, Eureka-Boston, was a learning community for nonprofit CEOs that developed into the Massachusetts Nonprofit Network, representing over 600 community-based organizations in the Commonwealth. At Eureka, Steve coached 56 CEOs of nonprofits in youth development, housing and homelessness, health care, community development, arts, and environment. He has served as a resource for early stage social entrepreneurs and seasoned executives of multi-service agencies.

Steve has led a range of consulting engagements in the areas of education and youth, housing and homelessness, workforce development, civic engagement and advocacy, and health care improvement. As part of this work, Steve led the development of our performance measurement system tool and framework for financial sustainability planning. He has written extensively on nonprofit strategy and leadership, financial sustainability, and performance measurement.

Steve has an Ed.M. from the Harvard Graduate School of Education and a B.A. in Government and English from Hamilton College. A cancer survivor, Steve has completed the 192-mile Pan-Mass Challenge bicycle ride seven times, raising over $40,000 for cancer research and advocacy.


Debbie Nguyen

Debbie Nguyen is a managing consultant at Impact Catalysts with a background primarily in program design and implementation, particularly in the world of education access and youth development. Prior to joining us, Debbie was a manager at Root Cause. Her work in direct service includes time as a College Success Director at Let’s Get Ready, where she developed and expanded the organization’s near-peer mentoring program to low-income and first-generation college students in the New England region. In Philadelphia, she implemented job readiness programming to homeless and foster youth through her work at Valley Youth House. Debbie also has experience with implementing performance measurement systems at Children’s Aid Society and conducting research at Nellie Mae Education Foundation and Empath (formerly Crittenton Women’s Union).

Debbie is a native of Massachusetts, meaning that she knows many people who are funnier than Steve. She holds an Ed.M. in Education Policy and Management from the Harvard Graduate School of Education and a B.A. in English Literature from Swarthmore College. She has lived and worked all along the Northeast corridor in Boston, Philadelphia, and New York City.


Francesca Moree

Francesca Moree is an associate consultant at Impact Catalysts, where she provides research and project management for client engagements. Prior to joining Impact Catalysts, Francesca was an analyst at Root Cause, where she conducted research and project management for strategic planning, business planning, and evaluation engagements. She was also part of the business development team and supported sales and marketing efforts.

Prior to her nonprofit consulting work, Francesca worked in international human rights and development. She was a fellow at Polaris, a nonprofit leader in the global fight against human trafficking, working on their Global Hotlines Program. Before this, she worked as a program development and evaluation officer at VOICE 4 Girls, an education and empowerment initiative focused on marginalized girls in Hyderabad, India. Originally from Chicago, Francesca has lived in Connecticut, D.C., and Uganda. When she’s not ignoring Steve’s jokes, she runs marathons, volunteers as a sexual assault crisis counselor, and is currently training to be a birth doula.


Amanda Zieselman

Amanda Zieselman is an associate consultant at Impact Catalysts, where she leads research and project management for client engagements. Amanda also serves as the part-time Executive Director of Health Advocacy Innovations, a global health nonprofit that she co-founded as an undergraduate at Dartmouth. At HAI, she led her organization through strategic planning, fund development, and formation of programmatic partnerships. Amanda has a passion for social justice and medical anthropology, with a focus on people. She graduated from Dartmouth College, with an academic background in neuroscience, anthropology and global health. She has also worked with underserved populations in the Upper Valley region of Vermont and New Hampshire. A Massachusetts native, Amanda still laughs at Steve’s jokes, despite our best efforts to discourage her.

Kalila Jackson-Spieker

Kalila Jackson-Spieker is an advisor to Impact Catalysts. She is also a Project Associate at ReThink Health, where she is part of team working to remake our troubled health system into one that is centered on the well-being and productivity of our people and the vibrancy of our communities. She has also worked as an analyst at Root Cause and as a Nonprofit Capacity Building Fellow at Third Sector New England. At Root Cause, she co-chaired the firm’s equity committee and guided the development of a new organizational approach to equity.

A graduate of the University of Washington, Kalila began her career working at TeamChild, a Seattle civil legal aid provider that serves youth involved in the juvenile justice system. While there she developed an interest in using research and analysis as a tool for understanding social challenges and opportunities, and went on to get her MPA from the Maxwell School of Citizenship and Public Affairs at Syracuse University. Kalila serves on the board of Citizens for Juvenile Justice.

Artie T. Westie

Artie T. Westie is Impact Catalysts’ Chief of Security. He also helps with scanning and print jobs for client engagements. He has been known to cut to the chase during video calls.