Established in 2002, 21/64 has evolved from a program with the Andrea & Charles Bronfman Philanthropies into an independent nonprofit practice providing multigenerational advising, facilitation, and training for next generation engagement, especially within family philanthropy and other family enterprises. We specialize in serving next gen donors, individuals, and families with funds, foundations, or other family enterprises, as well as wealth and philanthropy advisors—so that multiple generations can work, give, and serve together more effectively.

Arabella Advisors

For more than a decade, Arabella has been working closely with leading foundation professionals who are serious about impact and determined to see their efforts create meaningful change.

Bridgespan Group

Bridgespan helps mission-driven organizations and philanthropists to advance their learning and accelerate their impact.

Center for Effective Philanthropy

The Center for Effective Philanthropy (CEP) is a nonprofit organization focused on the development of data and insight to enable higher-performing funders. CEP’s mission is to provide data and create insight so philanthropic funders can better define, assess, and improve their effectiveness – and, as a result, their intended impact.

Centre for Asian Philanthropy and Society

The Centre for Asian Philanthropy and Society (CAPS) is an action-oriented research and advisory organisation committed to improving the quantity and quality of private social investment in Asia. As a research and advisory organization positioned in Hong Kong, we help our clients achieve their goals in Asia by leveraging our extensive expertise in research, strategic design, and evaluation.

Changing Our World, Inc.

Changing Our World is the trusted philanthropy and fundraising consulting firm to the world’s leading nonprofit organizations, corporations, private foundations, and philanthropists. We provide expertise and individualized solutions, helping nonprofits create strong relationships with donors and enabling grant makers and corporations to invest their resources wisely.

Community Wealth Partners

We offer leadership development and coaching, strategy and implementation, and community collaboration services like other consultants, but our clients consistently say we are not typical consultants. Rather, we are true partners focused on turning change agents’ visions into bold goals, goals into plans, and plans into action, ultimately helping our clients accelerate the pace of change.


Digital Impact (formerly Markets for Good) is an initiative of the Digital Civil Society Lab at the Stanford Center on Philanthropy and Civil Society (Stanford PACS). We improve the digital infrastructure for civil society and help social sector practitioners and policymakers use digital resources safely, ethically and effectively for maximum impact. Digital Impact is made possible with the ongoing support of the Bill & Melinda Gates Foundation, the progressive financial firm Liquidnet, and Knight Foundation.

European Foundation Centre

The EFC is the platform for and champion of institutional philanthropy – with a focus on Europe, but also with an eye to the global philanthropic landscape. With the aim of being the voice of institutional philanthropy in Europe, we communicate to stakeholders the value of organised philanthropy to society, to help nurture an environment in which it can flourish. We serve as a hub of sector exchange and intelligence, to help our members increase the impact of their added value in society. The EFC gives its members access to a wealth of knowledge on the sector and to long-term Read more

Foundation Group

At Foundation Group, we focus on just one goal: helping 501(c)(3) nonprofits thrive. As a leader in nonprofit formation, tax, and compliance services, we have successfully steered 20,000+ organizations to tax-exempt status. We help nonprofits anticipate and avoid problems at both the Federal and state level. Our tax specialists and Enrolled Agents also help nonprofit leaders and board members navigate risk, regulations and uncertainty. When your organization needs every advantage, Foundation Group prepares the ground for exceptional growth and success. Our SureStart nonprofit formation system for Private Foundations provides professional assistance and peace of mind to giving families and others Read more


FSG is a mission-driven consulting firm. We are experienced advisors to corporate, foundation, and nonprofit/NGO leaders. Through our combination of customized consulting services, powerful insights, and ground-breaking initiatives, we help clients around the world create social impact. SOCIAL IMPACT EXPERTS FSG was founded in 2000 by Harvard Business School Professor Michael E. Porter and Mark Kramer to help foundations create more effective strategies and impact beyond their grant dollars. Today, we are a global firm of 160 people in 6 offices on 3 continents. Each year we use our expertise in strategic planning, implementation, and evaluation to help hundreds of Read more

Harder+Company Community Research

Harder+Company blends sophisticated research methods with real-world insights to help clients better understand their work. We conduct rigorous evaluations, guide learning processes, and advise clients on strategies for the future. Across all of this work, we use creative, culturally-responsive approaches to engaging communities and building the capacity of our clients and their partners.

Innovation Network

Innovation Network is based in Washington, DC and works around the country with funders and nonprofits. With deep experience in the evaluation, nonprofit, and philanthropic sectors, our staff is dedicated to sharing insights and tools that help our clients improve their work. Innovation Network is pleased to have the Center for Evaluation Innovation as our strategic partner. The Center was created in 2009 to push evaluation practice in new directions and into new arenas.

International Association of Advisors in Philanthropy

The International Association of Advisors in Philanthropy, Inc. (AiP) is a network of diverse professional advisors who are devoted to mastering and promoting the principles and practices of client-centered planning.

La Piana Consulting

La Piana Consulting helps foundations leverage organizational strategy, structure, and culture to advance their missions, balancing skillful process with rigorous analysis to deliver powerful results and lasting value.

McKinsey & Co.

We are a global management consulting firm that serves a broad mix of private, public and social sector institutions. We help our clients make significant and lasting improvements to their performance and realize their most important goals. With nearly a century of experience, we’ve built a firm uniquely equipped to this task. Our flagship business publication, McKinsey Quarterly, has been defining and informing the senior-management agenda since 1964. McKinsey Global Institute’s mission is to help leaders in the commercial, public, and social sectors develop a deeper understanding of the evolution of the global economy and to provide a fact base Read more

National Network of Consultants to Grantmakers

The National Network of Consultants to Grantmakers is a champion for quality in the field of philanthropy consulting. NNCG was established in 2006 as a direct response to the needs of grantmakers who increasingly turn to consultants to support and increase the impact of their work.

Open Road Alliance

Open Road Alliance is a private philanthropic initiative that provides grants and loans to non-profits and social enterprises for mid-implementation projects facing an unexpected roadblock or a sudden catalytic opportunity.

Putnam Consulting Group

Putnam Consulting Group provides a full range of advising and consulting services to help philanthropists achieve dramatic results with confidence and clarity. Since 1999, we’ve been honored to deliver results for funders of all sizes and types,  providing experienced consultation and guidance, impact evaluation, and communications savvy to your grantmaking team or foundation leadership.  

RenPSG Philanthropic Solutions Group

Complete Philanthropic Solutions. Cloud Apps. Consulting. Administration. RenPSG provides the technology and service so donors focus on giving and organizations focus on growth.

Rockefeller Philanthropy Advisors

Whether you’re an established foundation, an aspiring philanthropist, a global corporation, a group of funders with a shared interest, or anything in between, RPA meets you where you are. We continually build on lessons learned over more than a century, as well as ideas just emerging, sharing insight with our clients, our community and the sector at large. Our goal: to help define the next generation of philanthropy as we foster a worldwide culture of giving.

Root Cause

Root Cause is passionate about making efficient, practical use of data and evidence to drive strategies that lead to higher performance. We firmly believe that making your organization more capable and getting clearer on your impact will increase your ability to improve lives.

TCC Group

At TCC Group, we are passionate about helping the social sector achieve greater impact. Since 1980, we have developed strategies and programs that enhance the efficiency and effectiveness of foundations, nonprofits, corporate citizenship programs, and government agencies.

The Philanthropic Initiative

The Philanthropic Initiative (TPI) helps companies, foundations, families and individuals find innovative ways to maximize the impact of their giving. Working around the globe, we partner with clients to create, implement and evaluate customized philanthropic strategies. Since 1989, we’ve directed more than one billion philanthropic dollars and influenced billions more on behalf of our clients. TPI is also committed to actively promoting and advancing strategic philanthropy. We conduct cutting edge research and train individuals, organizations, and advisors in best practices. Through TPI’s Center for Global Philanthropy, we partner with experts, government and nonprofit leaders to build cultures and systems that Read more