Spend less time managing your nonprofit with our software and spend more on where it matters most.

Eleo is an affordable, innovative, easy to use, software for nonprofits that helps with every aspect of your organization’s fundraising and donor management, so you can focus on something bigger.

See How

All nonprofits share a common dream: to make the world a better place. They also share a common reality: they rely on donors and funding to keep working toward their goals.

Our core belief at Eleo Online is that software for nonprofits should should be affordable and comprehensive for nonprofits of all sizes. We developed our online donor management system to support crucial fundraising and donor cultivation tasks.

Eleo is a product of Community Software Solutions, Inc. (CSS), a company whose specialized software has supported the social programs of numerous nonprofits and government organizations since 1991. Eleo grew out of CSS founder and CEO Mark Grossman’s commitment to supporting the vital role nonprofits play in our society. Mark realized that the company’s data management and tracking technologies could be applied to provide nonprofits large and small with useful, niche-specific, user-friendly tools to help them make the most of their donor cultivation and fundraising efforts.

Support for philanthropic work is at the heart of Eleo’s mission: our name takes its inspiration from the Greek goddess Eleos, the personification of charity and compassion (the English word eleemosynary, meaning “pertaining to charity,” stems from similar Greek roots). Our staff members are deeply engaged in charity work—both as active volunteers and as donors and supporters—and we believe in the power of nonprofits to bring about positive change.

Your organization has important work to accomplish. We want to help you make a bigger difference in the world by giving you access to software specifically designed to increase your donor cultivation and fundraising results, so you can spend your time and energy where it matters most.

Who Uses Eleo?

The Nonprofit Sector encompasses all different organizations who devote their time and energy to improving every aspect of life on earth.  Eleo clients represent this wide array of missions and causes, using our customizable software to meet their needs for fundraising, donor relations, events, memberships, grant tracking and more.

Ranging from start-up nonprofits fueled by the passions of individuals to larger national associations across the United States, Eleo helps keep their fundraising on track through our software for nonprofits, moving their organizations forward for years to come.

Animal Welfare

Affordable Housing

Job Readiness for Women & Men

Social Services


Professional Associations


Environmental Causes

Children’s Services


Handicapped, Disabled & Veterans

Community Emergency Services

Thanks to Eleo, we’re able to harness the power of our data and use it strategically. We can operate more efficiently and are prepared to grow so we can help more women achieve their full potential.

Mary Jean Barnes, Executive DirectorDress for Success Northern New Jersey - 10 Counties

Eleo is the perfect donor management system for The Amy Foundation. It’s very user-friendly, certainly cost-effective and ELEO support has been wonderful.

Rose Cofone, Executive DirectorThe Amy Feiman Behar Foundation for Cancer Prevention, Inc.