Interim Executive Solutions has developed a network of highly accomplished professionals with experience leading both nonprofit and for profit organizations. Our Associates bring general expertise in key areas such as assessing organizational needs, determining and acting on priorities, developing the capacity of staff, communicating with stakeholders, and collaborating with nonprofit boards on vision, strategy and future leadership needs.
In addition, many of our Associates have deeper expertise in particular practice areas such as finance, fund-raising, human capital, systems and operations, technology, public relations, and the law, and they are willing share their knowledge in these areas when needed by others.
Here we highlight just a few of the Associates currently available in our network:
Whitney Allgood
Whitney Allgood is an educator, founder, and PhD with 25 years’ experience in organizational leadership, program design, and performance management across public and private education and social services sectors. Over the last 12 years, she has held executive positions in education-related non-profit organizations, founded her own consulting practice for social impact organizations, and served as a Senior Advisor at Aceum Advisory. Her driving purpose is to help leaders and their teams develop the mindsets, practices, structures and systems that drive short-term value and long-term impact while building a positive workplace culture.
Jamie Bearse
Jamie Bearse is a nonprofit CEO and executive with 22 years of experience transforming organizations into extraordinary success stories. He’s an executive coach, a nonprofit consulting business leader, and an interim executive. He believes synthesizing organizational culture, clear and concise strategy, and empowering community involvement are critical for nonprofit success. As CEO of ZERO Prostate Cancer, Jamie grew the organization into a national patient-powerhouse where his leadership resulted in a remarkable 500 percent increase in fundraising and programmatic capacity over a decade. Over that time, the organization earned the NonProfit Times 50 Best Places to Work a record nine times while consistently receiving top marks from watch-dog group, Charity Navigator. While at ZERO, his accomplishments included pioneering a new $200M multi-organizational business model for patient relief, spearheading the creation of the largest men’s health event series in the U.S., and uniting the prostate cancer cause through building a centralized chapter system while leading the acquisition of key organizations in the space.
Juan Pablo Berrizbeitia (JP)
Juan Pablo Berrizbeitia (JP) is an accomplished nonprofit executive with over 20 years of experience guiding organizations through transitions and capacity building. As an Interim Executive Director, JP leverages tools like the Nonprofit Management Framework and the Organizational Functional Maturity Model to provide strategic direction and enhance impact. With a distinguished educational background, including degrees from Harvard and Warwick University, and extensive grassroots experience working with marginalized communities, JP brings a unique global perspective to his leadership roles. His track record of success makes him an invaluable asset to nonprofits navigating change and seeking to strengthen their capacity and sustainability.
Jeannette de Jesus
Jeannette is an experienced and sought-after interim executive director, coach and consultant. She has helped transform organizations by ensuring that the right people, structures, strategies and systems are in place to achieve excellence across the organization, particularly during times of transition.
She is mission driven and focused on translating plans into results, elevating performance, and increasing impact in an environment of increasing uncertainty, complexity and transition.
Jeannette has an MPA from Harvard University and an MSW from New York University. She is certified through the Institute for Professional Excellence in Coaching.
Keith Dvorchik is an accomplished leader who has more than 25 years of executive nonprofit leadership experience and is now offering Interim Executive services to organizations that are in leadership transition. Keith served as the CEO of University of Florida Hillel for 15 years, President and CEO of The Jewish Federation of Greater Seattle for 3 years, and CEO of The Roth Family JCC/Jewish Federation of Greater Orlando/Shalom Orlando entities for 7 years.
Keith has worked extensively with various Board of Directors and committees to identify the opportunities and challenges facing the organization. He brings the ability to see the big picture, listen to the board’s goals and objectives during the transition period, and help accomplish them.
Keith is a graduate of The Pennsylvania State University with a BS in Accounting and master’s degree in counseling. Keith and his wife, Alison, have two adult children, Evan and Matthew.
Shelley Feist has a history of growing and stewarding multi-organization partnerships while delivering highly-visible programs and campaigns supported by Federal and private funders.
Shelley’s experience has been on three sides of the nonprofit sector – as a grantmaker (Pew Charitable Trusts); as a grantee (The Partnership for Food Safety Education and the John F. Kennedy Center for the Performing Arts) and in setting Federal funding priorities (US Senate Appropriations).
She recently completed a 14-month assignment as interim executive director of The Conservation Alliance for Seafood Solutions, a global sustainable seafood organization.
She brings curiosity, a focus on mission outcomes, and a commitment to stable and communicative management for nonprofit organizations about to engage in the search for a permanent leader.
Shelley grew up as a farmer’s daughter in central North Dakota. She completed the West Virginia Master Naturalist coursework and enjoys spending time outdoors.
She is a longtime resident of Washington, DC.
Ronald Jackson, a seasoned professional with over three decades of experience and has held key roles such as Executive Director, Deputy Executive Director, and Finance/Administration Director at various agencies.
His expertise is in organizational development and community development services. He has consistently led team efforts that have significantly enhanced service support for clients in the care of respective agencies.
Ronald holds a Master of Public Administration from Old Dominion University in Virginia and a Bachelor of Business Administration from the University of Cincinnati. He earned a Certified Executive Coach designation at the University of Kansas and Center of Executive Coaching.
John Koehr
John Koehr is an accomplished association executive who advances mission, margin, and strategy impact in nonprofit associations. He served as the chief staff executive for the Associated Builders and Contractors (ABC) Eastern Pennsylvania Chapter, the Southern California Contractors Association (SCCA), the Society of Exploration Geophysicists (SEG), and in multiple executive roles at the American Society of Mechanical Engineers (ASME). Earlier in his career John managed major projects in the telecommunications and power industries and served as a U.S. Navy submarine officer. John holds an engineering degree from the U.S. Naval Academy and both CAE and PMP credentials.
Elaine is an experienced CEO, executive director, and board member enabling nonprofits of all sectors and sizes create meaningful social impact. She loves to problem-solve by listening, re-framing challenges, and crafting strategies backed by actionable execution plans. She engages with compassion, curiosity, collaboration, and optimism, driving buy-in across stakeholders. Elaine was CEO of Knowledge Impact Network (KIN), a global network of leaders exchanging knowledge for social good. In this role, she crystallized the mission, vision, values, and programming, working closely with the Board. She cultivated relationships with donors and managed partnerships.
Prior to KIN, Elaine was the Executive Director of Harvard Business School Community Partners of Northern California. Here, she managed volunteers leveraging their business skills to support nonprofits. She worked with hundreds of nonprofits across sectors and sizes to assess their needs. Elaine currently sits on several nonprofit boards and has organized summits focused on advancing nonprofit board practices. She speaks at conferences and has authored an op-ed piece on the power of applying business acumen to social issues. Before her pivot to the social impact sector, Elaine was a consumer marketer and strategy consultant. She received her bachelor’s degree from Harvard College and MBA from Harvard Business School.
Jeff Matlow
Jeff is a respected and highly experienced business leader with experience that crosses both nonprofit and for profit sectors. He has spent over two decades serving in Executive Committee roles for national non-profit Boards, including holding positions as Treasurer, President and Secretary of various Boards.
In 2022 he assumed the role of Interim CEO for Running USA, the leading trade organization for the $2B running industry. While in that role he transformed the company, both strategically and operationally, setting the company up for rapid growth via enhanced programming, growth-centric partnerships and expanded research capabilities.
Jeff is also a 3x successful entrepreneur. Each of his companies was acquired by a publicly-traded organization and Jeff assumed leadership roles in each instance.
He is currently a highly sought-after executive coach for leaders at Fortune 500 companies, and a business transformation consultant for nonprofit and for-profit organizations.
Maisie Pollard is a seasoned executive leader with a profound commitment to mission-driven organizations. With a wealth of experience in building and guiding high-performing teams, she has demonstrated excellence in recruiting, retaining, and developing talent to create cultures rooted in authenticity, respect, and clear communication. Her leadership is characterized by a strategic balance of organizational excellence, fiscal responsibility, and a deep investment in mission advancement, particularly within marginalized communities.
During her tenure as Chief Administrative Officer at Beth Israel Deaconess Medical Center, Maisie oversaw the strategic planning, operations, and administration for the Department of Obstetrics and Gynecology. She led a team of 400 employees, managed a $66.5 million budget, and significantly expanded services both locally and internationally. Maisie’s efforts in strategic financial development, programmatic expansion, and high-functioning team management resulted in notable revenue growth and enhanced the organization’s reputation. Her initiatives focused on increasing access to under-resourced populations, including LGBTQ+ communities, undocumented immigrants, and victims of intimate partner violence.
Maisie holds a Master of Public Health in Health Policy and Management from Columbia University and a Bachelor of Arts in International Relations from Georgetown University. Her dedication to continuous professional development, including certifications in interim executive leadership and executive leadership courses, equips her to navigate complex organizational challenges and transitions effectively. As she seeks senior leadership positions in mission-driven non-profits, Maisie’s experience and passion make her an invaluable asset to organizations committed to making a meaningful impact.
Alice Rodd O’Rourke, JD, is an expert in steering non-profits through transitional periods, bringing both stability and revitalization as a CEO, CRO, or Strategic Advisor.
Her diverse non-profit portfolio spans renowned organizations such as the Make-A-Wish America Foundation, Leukemia & Lymphoma Society, American Kidney Fund, and American Red Cross, alongside smaller entities such as the Wolf Conservation Center, Diabetes Research Institute Foundation, and New York New Media Association. She previously worked for the Colgate-Palmolive Company, New York State, and leading law firms, among others.
Alice adeptly manages both day-to-day operations while setting a clear, strategic vision for the future.
Dr. Reuben Romirowsky is the founder of DRR Consulting, having recently retired from a successful 30 year career in executive leadership and as a CEO of several human service agencies on both local and national levels. Reuben was a CEO of a Jewish Family service agency in MetroWest, NJ, and a Jewish Community Center in Orlando, Florida. Other local agencies where he held senior development and program positions were in New York City, which addressed the issues of eldercare, healthcare, domestic violence, urban poverty and food insecurity.
On a national level, Reuben was the Senior VP of Financial Resource Development for JFNA-the Jewish Federations of North America- overseeing the annual growth of a $ 2 billion system which raised annual funds from 150 local Jewish Federations across the US. In addition, Reuben was the VP for Financial Resource Development at UJA-Federation of NY, the largest local charity in America. Reuben’s consulting practice specializes in Executive coaching, Strategic planning, Board training and development, and Fund-raising strategy and development. He is passionate about building community through quality programs and services that align with organizational mission. Over the years, Reuben has earned a reputation for building high performance work teams and infusing a culture of innovation within organizational work culture.
Clarissa Russell
Clarissa Russell is a distinguished non-profit executive and businesswoman known for her ability to align organizational missions with strategic outcomes. She excels in collaborating with Boards of Directors to realize their visions while fostering synergy between strategy and operations. She brings innovative business acumen to nonprofit organizations, enhancing financial stability, creating efficiencies, and driving purposeful results. As an accomplished Executive Director for multiple trade associations and professional societies, she has successfully guided three organizations from financial distress to fiscal solvency. Her expertise encompasses transformative leadership, strategic planning, program development, C-suite engagement, value proposition enhancement, fundraising, comprehensive P&L management, marketing, public relations, and multi-level advocacy.
Recognized by the American Society of Association Executives (ASAE) as a Certified Association Executive, further enhanced her leadership capabilities by completing the Interim Executive Director Academy curriculum. She holds an MBA from Johns Hopkins University and a BS from James Madison University. As an advocate for workplace diversity and inclusion, she obtained a Diversity, Equity, and Inclusion Certification from the University of South Florida.
As a seasoned leader, Tracey brings broad-based experience in the fields of social change, education, health and wellness,, human services, organizational transformation, and leadership development. For over thirty years Tracey has led nonprofit, public sector and international organizations, overseeing budgets and investments of up to 62 million dollars. Her hands-on experience as a public sector leader, nonprofit executive, consultant, advisor, and systems coach gives her a unique perspective in her work with organizations in transition.
Tracey has extensive experience in leadership transition, organizational development, change facilitation, board development, strategy and design, and partnership and alliance building, Throughout her years of service, she has partnered with organizations to transform their culture, address structural and systemic inequities, and design strategic actions to create just, fair and inclusive human-centered systems. She holds a Master of Social Work; is a Licensed Clinical Social Worker, Professional Certified Coach, through the International Coach Federation; and is a certified Organizational Relationship Systems Coach.
Laura has held leadership roles in corporate technology, K-12 education, higher education, and the non-profit sector. She now works as a consultant and serves a variety of clients nationally. Laura leans on over 30 years of diverse experiences to guide her clients through a comprehensive gap analysis and the difficult conversations needed to chart a sustainable path forward. She is known for her ability to synthesize large amounts of information quickly, think strategically, and act tactically to advance organization goals quickly without losing sight of how important the connection of people and organizational culture are to the fulfillment of mission.
Laura initially worked for a Fortune 100 company and was responsible for enterprise software, user centered design and testing, and technology research. She then served as Executive Director of an education foundation for nearly 5 years before joining a local school district as a consultant to champion a transformational initiative in partnership with the Superintendent. She later transitioned to a leadership role in higher education and most recently served as Chief Talent Development Officer for a regional non-profit tech council. Laura holds a degree in the Management of Computer Systems and an MBA with a focus on leadership studies and a wide variety of certifications which demonstrate her commitment to life-long learning.
Marci Sternheim is a broadly experienced and deeply knowledgeable consultant, coach, facilitator, and trusted advisor dedicated to the success and effectiveness of nonprofit organizations, foundations, and academic institutions. She works closely with boards of trustees and high-level staff in customized engagements to develop their leadership in governance and management, and to build organizational capacity for greatest mission impact.
Marci’s career traverses philanthropy, nonprofit organizations, and academia. Prior to establishing Sternheim Consulting, she was President of The Dibner Fund, a $100 million family foundation; the Founding Executive Director of The Joseph Slifka Center for Jewish Life at Yale; and Assistant University Secretary at Yale. She has taught at both Yale and Wesleyan, and holds a doctorate from Yale and a BA from Colgate University.
Marci is a certified mediator, a BoardSource-trained governance consultant, and a trained Interim Executive Director. She coaches nonprofit leaders, teaches nonprofit governance and professional practice in a variety of programs, and is a frequent public speaker/conference presenter on topics ranging from contemporary best practices in nonprofit governance to organizational culture to the philanthropic partnership. She has served on a wide variety of nonprofit boards, nationally and locally.
Richard Sugarman
Richard has had proven success at both starting and sustaining organizations. He has also been effective and thoughtful in carrying out leadership transition as an important element of sustainability.
Richard is the Founding President of Hartford Promise, a large-scale scholarship and college success program for Hartford students. Under Sugarman’s leadership Hartford Promise raised over $20 million and secured multiple long term funding relationships that will benefit and secure the organization for decades to come. He is also Founding President of The Connecticut Forum, a non-profit organization that since 1992 has brought nationally known panelists to Hartford, four times a year, in front of audiences of 2800 people, to discuss a variety of timely and important topics. CT Forum programs cover a wide range of topics from controversial and provocative to entertaining and lighthearted. The list of Forum panelists is a “who’s who” of the most significant and interesting people in our country.
Cheryl Zoll is an experienced CEO and Executive Director known for her transformational leadership in mission-driven organizations. With experience spanning basic needs, healthcare, harm reduction, mental health, legal services, education, and the arts, Cheryl has steered a variety of nonprofits through major transitions. She served as CEO of Tapestry Health and Executive Director of the Amherst Survival Center, where she stabilized finances, expanded services, and championed missions focused on equity and social justice. Cheryl’s academic background includes a PhD from the University of California, Berkeley, and teaching at MIT, Amherst College, and Hampshire College.