Why Most Donor Research Fails

The typical nonprofit approach to donor research looks like this: Google "[your cause] grants," find a few foundation names, visit their websites, send applications, and hope for the best. The hit rate on this approach is usually under 5%.

The problem isn't effort - it's strategy. You're starting from the foundation side (who gives money?) instead of the nonprofit side (who gives money to organizations like mine?). That difference changes everything.

The Peer-Based Research Method

The most effective free research method starts with your peers, not with foundations. Here's the logic: if a foundation funded an organization similar to yours, they're far more likely to fund you than a random foundation you found online.

Step 1: Identify Your Peer Organizations

Make a list of 10-15 organizations that do similar work. Think about:

Organizations with a similar mission (same cause area, similar approach)
Organizations serving a similar geographic area
Organizations of a similar size and budget

You can find peers through your state's nonprofit directory, GuideStar (now Candid), or simply by knowing your field. In GrantFound, you can search by mission description and we'll find similar nonprofits automatically using AI.

Step 2: Find Their Funders

For each peer organization, find out who funds them. There are several ways to do this for free:

Their website - Many nonprofits list funders on their site, annual report, or "supporters" page.
Their 990 filing - Look at Schedule B (contributors) or the revenue section showing grant income. Note: contributor names on Schedule B aren't always public.
Foundation 990-PF filings - This works in reverse. Foundations list every grant they made. If your peer received a grant, it shows up in the foundation's filing. Learn more in our guide to 990 filings.
Ask them - Nonprofit leaders are often willing to share funder information. Buy them coffee and ask.

Step 3: Build Your Prospect List

As you research, build a spreadsheet tracking each foundation prospect with:

Foundation name and EIN
Which of your peers they funded
Grant amounts (typical range)
Foundation's total assets and annual giving
Geographic focus
Whether they accept unsolicited applications
Application deadlines (if available)

Foundations that funded multiple peers are your strongest prospects. They've already shown a pattern of giving in your space.

Free Tools for Foundation Research

GrantFound

GrantFound is designed specifically for this workflow. Describe your mission, find similar nonprofits, and see which foundations funded them - all from real IRS 990-PF data. Free to search, with a $50/month Pro plan for unlimited access and exports.

IRS Tax Exempt Organization Search

The IRS maintains a searchable database of tax-exempt organizations. You can look up any nonprofit or foundation by name or EIN and access their filed returns.

ProPublica Nonprofit Explorer

ProPublica makes 990 data searchable and readable online. Good for looking up individual organizations, though not designed for cross-referencing foundation giving patterns.

Candid (formerly GuideStar + Foundation Directory)

Candid's free tier lets you view basic organization profiles. Their paid products (Foundation Directory, starting at $179/month) offer deeper foundation research but are expensive for small nonprofits.

State Attorney General's Office

Many states require charities to register and file annual reports. These are often searchable online and provide additional financial data beyond what's in the 990.

Research Red Flags

As you research foundations, watch for these signals that a foundation isn't a good fit:

No grants to organizations like yours - If their 990-PF shows they only fund hospitals and you're an arts organization, move on.
"Contributions limited to pre-selected organizations" - This means they don't accept applications. Don't waste time.
Declining assets - A foundation whose assets are shrinking may be reducing its grantmaking.
No grants in your state - If they've never funded in your area, you're a long shot unless your work is exceptional.
Inactive filing - If their most recent 990-PF is several years old, the foundation may no longer be active.

From Research to Relationship

Good research is necessary but not sufficient. Once you've identified strong prospects, the work shifts from research to relationship-building:

Check the foundation's website for application guidelines and deadlines.
If possible, connect with a program officer before applying. A brief email or phone call to confirm fit saves everyone time.
Tailor your proposal to the foundation's specific interests and language. Reference similar organizations they've funded.
Follow up appropriately. If declined, ask for feedback and whether you might be a fit in the future.

For the full picture on finding and applying for grants, see our complete guide to finding grants.

How to Research Foundation Donors (Free Methods)