Fueling nonprofit innovation
The Greater Sum Foundation enables early-stage innovators to create new solutions to old problems by providing the tools, connections, and assistance they need to realize effective solutions to significant and ongoing problems around the world.
Support our cause
Volunteer your time and talent as an advisor; partner with us to deepen your impact; or give to innovative, scalable nonprofits.
The whole is greater than the sum of its parts
〰️
The whole is greater than the sum of its parts 〰️
Our priorities
We support early-stage, scalable nonprofits that are developing innovative solutions in community, education, environment, and health:
Our impact
156
nonprofit founders completed our Virtual Incubator program
$562,000+
Awarded to early-stage nonprofits
96%
of Incubator participants recommend the program
From the Greater Sum community
“Through [The Greater Sum Foundation’s] incubator program, pitch competition, and donor match initiatives, they provided not just funding opportunities, but real mentorship and capacity building. The leadership at GSF sets a powerful example of what foundations can be: transparent, innovative, and truly invested in the people doing the work.”
- Bre Russell, Founder, Girls Leading Girls
“I have the chance, as a Greater Sum Subject Matter Expert, to support the work of Defend Them All. I was especially excited to work with them because DTA is taking a novel approach to protect and promote species— working at a systemic level to change laws and, ultimately, behaviors creating direct action in protecting species.”
- Paul Morris, Founder & Partner, Equip Global
“The Greater Sum team does a tremendous job of nurturing and cultivating start-up nonprofits and they recognize that one of the keystones for their success is strong HR knowledge. We are happy to provide education and guidance to these groups to ensure that they remain compliant and can focus on their most important work, their mission."
-Suzi Lemen, CEO, Dynamic Corporate Solutions, Inc.




