Meet Our Team

Stephen M. Pratt (he/him/his)

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 16 times, raising over $100,000 for cancer research and advocacy. Steve also serves as board chair of Food For Free, an innovator in promoting food security in eastern Massachusetts.

External Partners

Kalila Jackson-Spieker (she/her/hers)

Kalila Jackson-Spieker has spent over a decade in the social impact space using research and analysis to help inform effective decision-making. This has included strategic business planning with social sector clients at the consulting firms Impact Catalysts and Root Cause; creating key insights for education decision-makers at Hanover Research; and contributing to public health peer learning collaboratives at ReThink Health. Most recently, she worked at the North American regional office of the Abdul Latif Jameel Poverty Action Lab (J-PAL) as a Senior Policy Manager, facilitating the development of academic-practitioner research partnerships and synthesizing evidence-based takeaways for policymakers. Kalila has an MPA from the Maxwell School of Citizenship and Public Affairs at Syracuse University.

Amanda Zieselman McKenna (she/her/hers)

Amanda Zieselman is an independent consultant specializing in strategy and project implementation. From 2017-21, she served as a  managing consultant at Impact Catalysts, where she supported strategy and implementation, and oversaw research and project management for client engagements. Amanda is also the co-founder and Executive Director of Health Advocacy Innovations, a global health nonprofit working to make childhood tuberculosis treatment more efficient and accessible. She is passionate about the right to health care and dismantling barriers that prevent folks from accessing resources. Amanda is from southern MA and is a graduate of Dartmouth College, with an academic background in neuroscience, anthropology and global health. Amanda has volunteered as a grant reviewer for United Way of Massachusetts Bay and has been a delegate for Cambridge’s Participatory Budgeting process.

Erin Miller (she/her/hers)

Erin Miller helps us include the voices of those with lived experience in our project by leveraging both primary and secondary research methods. She has long been an intersectional activist working in partnership with Black women, immigrant Latine, Haredi (Fervently Orthodox Jewish) and LGBTQIA communities. She is a specialist in the areas of trauma, abuse, and substance use, and most recently served as the Equity, Inclusion, and Abuse Prevention Officer at Newton-Wellesley Hospital. She also has the privilege of sitting on the Project Management Team for the National TeleNursing Center. She is currently on the board of The Network/La Red. Erin holds degrees in Black Studies and Gender-Based Violence, as well as credentials in substance use counseling and trauma. She recently graduated as a  Bloomberg Fellow from Johns Hopkins School of Public Health.

Dr. Natalie Moore-Bembry (she/her/hers)

Natalie Moore-Bembry advises Impact Catalysts on tactics to ensure the inclusion of a diverse range of voices in our research. She also weighs in on the analysis of research and the development of scenarios that we bring forward for consideration by our clients.

Dr. Moore-Bembry is an independent consultant and thought leader in the application of cultural humility to the practice of diversity, equity, and inclusion. She also serves as an educator, working in particular with first-generation college students hoping to bring their lived experiences to the social work field. She earned her doctorate of education from Rowan University.  She has a BSW and MSW from Monmouth University. She is a Licensed Social Worker and a Certified School Social Worker in the state of New Jersey. She has a wide range of experience in the field of Social Work, including working with the Mentally Ill Chemically Addicted (MICA), the developmentally disabled, and Child Welfare. With over 15 years of experience within the field of child welfare, Dr. Moore- Bembry has held positions such as: a child welfare worker, school social worker, and finally as a child welfare trainer.

She has taught at the undergraduate and/or graduate level at Rutgers University, Monmouth University, St. Joseph’s College, and Delaware State University. At St. Joseph’s College she designed and instructed an online undergraduate Human Behavior and Social Environment course that focused on racism, oppression, discrimination, and the use of cultural humility.  Dr. Moore-Bembry also designed an online graduate level Social Welfare Policy and Services course at Delaware State University.  At Monmouth University she taught Social Work Practice with Communities, Field Practice in Social Work and Advanced Field Practice in Social Work for in the undergraduate program where she also served as a field instructor and mentor for senior BSW field students.  In the MSW Program, Dr. Moore-Bembry taught Advanced Clinical Practice with Children, Social Welfare Policy and Services I, and Social Work Practice in Groups.

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.