Theresa M. Ellis

Founder and CEO

Theresa has dedicated her career to bringing innovative, impact-creating solutions to the most pressing social problems. As a little girl, she worked with her parents to help a family of eight children get back on their feet after both their parents were killed. This experience gave her a sense of the transformative power the right capital invested in the right venture at the right time.

Theresa brings two decades of experience in the social impact space to Liminality Partners. After beginning her career in education evaluation, Theresa founded Common Impact, a social enterprise that was the first to build systematized, pro-bono programs for Fortune 500 companies. After serving as CEO of Common Impact, Theresa took an appointment as the Gleitsman Visiting Practitioner at the Center for Public Leadership at Harvard’s Kennedy School of Government. In this role, she taught leadership, worked closely with students interested in social enterprise, and conducted research on the role of multi-sector leadership in addressing complicated, societal challenges.

More recently, Theresa returned to Dartmouth and lead the reorganization of the Tucker Foundation. Through a multi-stakeholder process, Theresa launched two new centers: The Tucker Center for Spiritual Life and The Dartmouth Center for Social Impact. As the founding Director of the Center for Social Impact, Theresa set the strategy, recruited a team, raised early capital, and built a board of advisors.

As the Founder of Liminality Partners, Theresa advises families and individuals who want to leverage their resources and tackle the social problems that are important to them. She collaborates with her clients to craft and implement their philanthropic strategies, work through operational challenges and evaluate their effectiveness. Theresa earned an AB in Religion with honors at Dartmouth College where she graduated magna cum laude and Phi Beta Kappa. She received the Phillip D. McInnis Class of 1936 Award, given to the outstanding woman in the graduating class. Theresa serves as the Chair of the Board of Trustees of the Brookwood School and as a judge at several social enterprise competitions. She also served on the Board of Trustees of the Essex County Community Foundation. She lives on Boston’s North Shore with her husband, their two children, and their dog.

Kate Barrett

Senior Associate

Kate is an experienced leader in philanthropy and nonprofit management. Most recently Kate served as Vice President of Investor Relations and Board Governance at Upstream USA, a national nonprofit working to expand opportunity by decreasing unplanned pregnancy.

Prior to joining Upstream in January 2018, Kate was the Boston executive director for the GreenLight Fund, a national venture philanthropy investing in nonprofit organizations serving low-income children, youth and families, with particular focus on sustainability, evidence of impact and innovation. She went on to the Heller School for Social Policy and Management at Brandeis University, where she also worked with Social Finance and the Sillerman Center for the Advancement of Philanthropy. After earning her MBA in nonprofit management from Heller, Kate returned to lead GreenLight’s Social Innovation Fund Initiative.

Kate studied Political Science and History at both the London School of Economics and the National University of Ireland in Galway. She received a BA in History from Colorado College where she was an All-American lacrosse player. Kate is a Boston-area native and currently lives in southern Maine with her husband and two sons.

Mia Strout

Special Assistant to Founder

Using her enthusiasm for life and community involvement, Mia developed a gift early on for helping others establish a personal mission by investing in their own cities. During her time in Massachusetts, Mia has interned and volunteered with nonprofits such as Beverly Bootstraps, and invested in the philanthropic side of the nonprofit sector during her time in marketing at Faith Christian School. In her previous role as a youth advocate with the Northeast Family Institute, Mia sought ways to rehabilitate youth in crisis with community integration via relationships, service, and capital. Her interest in both creating a personal connection and fueling an enduring passion for social impact in others has brought Mia to Liminality Partners.

Mia graduated magna cum laude from Gordon with a degree in Christian Ministries and concentrations in Juvenile Justice and Peace and Conflict Studies. She also holds an MA in Entrepreneurial Leadership from Gordon College. Mia lives in Salem, Massachusetts and travels to her hometown of Bar Harbor, Maine to enjoy Acadia National Park whenever possible.

Isaac Mintz

Director of Finance

Isaac M. Mintz is an experienced leader with over 19 years in the nonprofit sector. Isaac most recently served as the Vice President of Finance and Operations with the Jane Goodall Institute, a global conservation organization.

Isaac’s career has also been dedicated to social justice issues. He considers himself an innovator in growth and expansion strategy. He has proven his ability to challenge, change and better existing processes, procedures, and systems.

Isaac received his B.S in Accounting and Information Systems from High Point University in 2004. He also earned a Masters, cum laude, with a concentration in Accounting in 2006. He received his Master of Business Administration with a concentration in Information Technology and Business Management in 2009. Isaac has his CMA Certification and is a candidate for the Uniform CPA Examination.