Our Team

Holli Rivera

Carmen Wong
Senior Director

Rebecka Manglanathan

Claire Nelson

Carol Bahou

Alanna Morton
Operations Manager/Assistant to the President

Sara Beggs
Senior Philanthropic Advisor


HolliHolli Rivera, President, has more than twenty years of experience helping private foundations, donors and individuals achieve their intended impact. She combines practical, on the ground, community experience with strategic vision. She approaches her role at IP with a combined appreciation for the legal, tax and grantmaking responsibilities of private foundations and a deep concern for the relational success of the foundation directors with one another and in their chosen community.

Prior to founding Intentional Philanthropy, Holli served as Managing Director at Arabella Advisors. In this capacity, Holli led Arabella’s client service team providing strategic planning, foundation management, family engagement and "beyond dollars" grantmaking strategies to individual donors and family foundations. From 2001 to 2008, Holli served on the senior leadership team of Exponent Philanthropy (then the Association of Small Foundations), a national association serving foundations with few or no staff. While at Exponent, Holli served as Director of Educational Programs, facilitating hundreds of foundation workshops, overseeing the completion of ASF’s Trustee Leadership Seminar and launching the association’s first Next Generation Seminar for multi-generational family foundations.

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Holli is a former Trustee of the Mead Family Foundation, a foundation dedicated to strengthening families and helping youth turn opportunity into reality, and is a 2012 graduate of Leadership Montgomery. She is also a member of the National Network of Consultants to Grantmakers, is trained by the National Center for Family Philanthropy as a Pursuit of Excellence facilitator and speaks regularly to foundation audiences including the Association of Small Foundations and the Council on Foundations.

Holli holds a B.A. with honors from the College of William & Mary and completed graduate work in International Economics at the University of Guadalajara, Mexico. An experienced facilitator, Holli has also studied Family Systems Theory at the Bowen Center for the Family at Georgetown University. Her previous experience includes serving as a women’s ministry leader with a local congregation, a program director for an international aid organization, a consultant for several international trade firms and university instructor in Guadalajara, Mexico and Niigata, Japan.

Carmen Wong, Senior Director, has worked in the philanthropic field for fifteen years, mainly on issues pertaining to foundation operations, grantmaking, and governance. At IP, she leads foundation grants and operations work, and also serves as a philanthropic advisor on strategic grantmaking, governance, and donor intent projects.  Prior to IP, Carmen was Senior Program Manager with the Association of Small Foundations (now called Exponent Philanthropy). While at ASF, Carmen wrote, edited and produced many printed and online resources including Foundation in a Box, and conducted valuable benchmarking studies such as the Foundation Operations & Management Report and the Foundation Salary & Benefits Report. Prior to ASF, Carmen worked as a reporter for the Associated Press in Washington, D.C. She had intentions of returning to the thrilling news industry when taking nonprofit work assignments in between jobs. But she fell in love with the people, families, causes, and the potential for great impact and fulfillment in the nonprofit field, and didn’t look back. Carmen graduated with a B.A. Summa Cum Laude from The Catholic University of America, an M.S. in Journalism from Northwestern University’s Medill School of Journalism, and was a U.S. Fulbright Scholar. Carmen currently serves as an expert reviewer for the Standards of Excellence certification program of the Maryland Association of Nonprofits. In addition to her work as a philanthropic advisor on many client projects, Carmen is the Executive Director for the Solon E. Summerfield Foundation Inc. and Director of Grants and Operations for the Mead Family Foundation, foundations managed and staffed by Intentional Philanthropy LLC.

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Rebecka (Becka) Manglanathan, Director, has served the philanthropic sector for over ten years in both direct service and as a grantmaker. Most recently, as a program manager for the Commonweal Foundation, Becka was responsible for managing an afterschool program assisting over 1,000 students, curriculum development, and data evaluation. She also managed a significant grant portfolio, served as a community outreach liaison, and was responsible for developing a parent empowerment program for immigrant and minority parents to promote school involvement. Becka is extremely passionate about using education as a means to end the cycle of generational poverty. Becka has a BS in mathematics from the University of Maryland and a MA in Education, Curriculum Development from American University. In addition to managing client projects, Becka serves as the Grants and Operations Manager for the Myles D. and J. Faye Sampson Foundation, a foundation fully managed and staffed by Intentional Philanthropy LLC.

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Claire Nelson, Director, has a decade of experience managing corporate citizenship for global companies in a variety of industries including defense, biotechnology, fashion and finance. Claire's experience includes grantmaking through both corporate giving programs and corporate foundations, as well as designing and leading employee volunteer programs. She has in-depth knowledge of STEM education, veterans, healthcare, workforce development and women's economic independence as philanthropic causes. Claire has an MBA in finance from Zicklin School of Business at Baruch College in NYC, and a BA in economics from New York University. She has served in volunteer leadership roles at the Corporate Volunteer Council of Montgomery County, Olney Civic Fund, Young Nonprofit Professionals Network of NYC, Net Impact, Startingbloc and Project Sunshine. In addition to her work supporting many client projects, Claire is the Director of Grants and Operations for the Solon E. Summerfield Foundation Inc., a foundation managed and staffed by Intentional Philanthropy LLC.

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Carol Bahou, Controller, is a licensed CPA with 14 years of accounting experience. She currently supports Intentional Philanthropy’s managed foundations by providing bookkeeping oversight, account reconciliation, investment portfolio valuation and 990PF preparation support. Carol previously provided auditing and tax services at Reznick Fedder & Silverman, P.C., and tax and financial planning services at PricewaterhouseCoopers, LLP. She is licensed in Maryland, Virginia, and Delaware. She received her undergraduate dual-degree in Accounting and Finance at the University of Maryland in College Park, Maryland in 1999 and her Masters in Business Administration (MBA; Focus: Taxation) at the American University, in Washington D.C. in 2007.  She is the founder and managing partner of CABA CPAs, Inc.

Alanna Morton, Operations Manager/Assistant to the President, oversees the day-to-day administrative functions of Intentional Philanthropy and several managed foundations. Her skills include bookkeeping, human resources, marketing and business development. Prior to joining the IP team, Alanna worked for both a community foundation and several nonprofit organizations in Fairfield County, Connecticut. Her background includes providing executive, board governance and executive committee support. In addition, Alanna has experience in event management, and in problem-solving to meet operational and staffing needs. She specializes in business development and operations management, creating solutions for small to mid-size organizations. At IP, she works across the operational, programmatic, and business activities of the firm, while also serving as the executive assistant to Holli Rivera. Alanna holds a B.A. in Professional Studies, graduating magna cum laude from Sacred Heart University in Fairfield, Connecticut.

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Sara Beggs, Senior Philanthropic Advisor works with Intentional Philanthropy’s clients on strategic grantmaking, landscape assessment, and family engagement. Currently, Sara is working with a two-generation foundation board to make the shift toward the strategic interests of the third generation while maintaining agreement and interest from the second generation. Prior to Intentional Philanthropy,  Sara served in senior positions at Exponent Philanthropy, focusing her energy on helping funders achieve impact and engage in evaluation. Through tools like the 10-Minute Impact Assessment, conference trainings, small group learning, and one-on-one consultations, Sara helps funders define a clear focus, and a manageable and meaningful strategy that is grounded in a deep knowledge of the field.  Prior to the impact work, she authored several publications including The Foundation Guidebook, The Trustee Handbook, and several legal primers. Sara’s prior work was in the field of community and economic development, after receiving her B. S. in economics from Boston College.