Grantmakers.io Review: How to Search Grantees and Foundations for Free

You have a list of possible funders and you want to check their past giving before you spend a week on an application. This Grantmakers.io review asks how far a free search of foundation tax filings gets you on that job before a paid tool has to take over, working from published pages and a few labeled Reddit reports, with no hands-on testing claimed. It also shows how to search grantees on Grantmakers.io, the mode that finds which funders backed organizations like yours.

Grantmakers.io is a search tool that reads public foundation tax filings and returns them in a form a grant writer can use, at no cost and with no account (Grantmakers.io home page, read September 2026).

Quick Answer: Is Grantmakers.io Worth Using to Search Grantees?

Grantmakers.io is worth using to check a foundation's past giving: it is a free, no-login search of IRS 990-PF filings (Grantmakers.io home page, read September 2026). To search grantees, enter a peer organization's name in grantee search and note every foundation that funded it. Save the results yourself, because the site keeps no account.

What Grantmakers.io Is

Grantmakers.io is a free, open-source, no-login search of the IRS 990-PF dataset offering foundation profiles, grants search and grantee search (Grantmakers.io home page, read September 2026). Form 990-PF is the tax form private foundations file each year to report assets, grants paid and application procedures. The site describes itself as "Built from public 990s. Forever free." and notes that foundation tax filings "have been public since the 1950s" (Grantmakers.io home page, read September 2026).

Its home page states "Cost of access $0" and "Annual budget $200", and says the service "was architected to last forever" (Grantmakers.io home page, read September 2026). The same page reports "13,168,741" searches performed and says "8,000 of your nonprofit peers spend 4 minutes every week searching on Grantmakers.io" (Grantmakers.io home page, read September 2026); both are the site's own figures.

Three search modes carry the work (Grantmakers.io home page, read September 2026). Foundation search finds a funder's profile. Grants search finds individual awards across every funder in the set. Grantee search starts from the recipient side and finds who received money.

The site positions itself as a starting point, not a rival: Grantmakers.io calls itself "The perfect springboard to Instrumentl and FDO" (Grantmakers.io home page, read September 2026). That sentence sets expectations correctly. Use it first, then pay for enrichment and workflow where the free data runs out. Readers comparing paid options should start with our broader grant-finding method for nonprofits before deciding what to buy.

How to Search Grantees on Grantmakers.io

Grantee search on Grantmakers.io is the recipient-first mode: it starts from the organizations that received grants, where foundation search starts from the funders (Grantmakers.io home page, read September 2026). The question it answers is which foundations have already funded organizations like yours.

The method is peer-first. List a handful of peer organizations in your field and region, search each one as a grantee, and note every foundation that appears in their results. A foundation that shows up under several peers is a stronger lead than one found by a subject search, because the peers' grants are evidence of fit that a keyword cannot give you.

Then read the funder side. For each foundation that appears more than once, look at the size and place of its grants: a funder whose awards sit far below your ask, or in another region, is answering your question before you write a word.

Keep that narrowing in your own spreadsheet, since the site has no account to save it in. A shortlist built from peers' funders is also the input every later step needs, from reading the full filing to checking the funder's own guidelines.

What Grantmakers.io Covers and How Current It Is

Grantmakers.io covers private foundations that file Form 990-PF, which is the same public filing layer that paid foundation tools parse. The IRS publishes the full Form 990 series of tax-exempt organization filings as free bulk XML downloads, and the data set files are updated monthly (IRS, Tax Exempt Organization Search bulk data downloads, read September 2026). Grantmakers.io sits downstream of that release pipeline, so its ceiling on freshness is set by the IRS schedule rather than by its own code.

The IRS side of the pipeline has depth. Its Form 990 series download page lists index files and XML archives by year from 2016 through 2026, with the latest 2026 posting shown as April 20, 2026 (IRS, Form 990 series downloads, read September 2026). That range tells you what exists, not what any one tool has loaded, so check which filing years a Grantmakers.io profile shows before reading a trend from it. Multi-year depth is what makes trend reading possible: you can see whether a foundation's giving grew, shrank, or shifted fields across filings instead of judging from a single year.

Expect a lag between a grant being paid and that grant appearing in search. A paid vendor describes the same constraint openly: Instrumentl says it retrieves 990 information "within a week of filings becoming publicly available", so the freshness ceiling of any 990-based tool is set by the IRS release schedule, not the vendor (Instrumentl help center, How Instrumentl creates 990 insights, updated June 18, 2026).

Paper filing creates permanent holes. Instrumentl notes that when a 990 is not e-filed it "cannot provide data and insights in our reports", so paper-filed foundations show as gaps in every 990-derived database (Instrumentl help center, How Instrumentl creates 990 insights, updated June 18, 2026). If a foundation you know exists returns nothing, check whether it files on paper before concluding it gives nothing.

Government and corporate funders sit outside this data set by design. Instrumentl notes that "government and corporate funders are not required to file Form 990s with the IRS, so these funders will not have a 990 Report or any Funder Insights" (Instrumentl help center, Locate funder profiles, read September 2026). Grantmakers.io inherits that boundary. Use it for private foundations and pair it with a federal portal and state sources for public money.

Where Grantmakers.io Falls Short

Grantmakers.io falls short where every raw filing search falls short: contacts, cleaning, deadlines, and workflow. The tool shows what foundations paid in the past. It does not tell you what they will fund next, who decides, when to apply, or whether your project fits. That distance between past grants and an open application is where paid tools earn their keep.

Contact data is the first gap. Filings carry officer names and addresses but not program officers, emails, or current application preferences. Paid directories clean that layer and add staff lists with profiles, which Candid describes as detailed financials "more recent than the IRS", key staff contacts with LinkedIn profiles, and saved-search refresh (Candid pricing page, read September 2026).

Search filters are the second gap. Commenters across three Reddit threads called Grantmakers.io free and useful but said its filters were too weak to prospect with (Reddit threads 1p511oo, 1sewng0 and 1wcw9yl, read September 2026), and one called it "a good tool for playing around, but not a replacement" (Reddit thread 1sewng0, read September 2026). That fits the site's own positioning as a springboard to paid directories (Grantmakers.io home page, read September 2026).

Enrichment is the third gap. Candid states that it does "not just rely on IRS data; we clean the data, make it discoverable, enrich it with data collected directly from organizations" (Candid, About us, page dated February 18, 2025, read September 2026). Grantmakers.io describes itself as "Built from public 990s" (Grantmakers.io home page, read September 2026), so treat what it shows as the filing record and check names and amounts against the full return before you rely on them.

Workflow is the fourth gap. Saved searches, alerts and pipelines live in paid products. There is no account here by design: "No login, no lock up. Your data is yours to move around as you wish." (Grantmakers.io home page, read September 2026). Portability is the point and memory is absent: your short list lives in your own sheet, not in the tool.

Grantmakers.io Review: Cost, Access and Limits Against Paid Tools

Price is the easy part of this review: nothing here costs anything, and the limits are functional instead of financial. Access costs $0 with no account, no trial clock, and no download gate tied to a tier (Grantmakers.io home page, read September 2026). Paid tools charge for cleaned data, contacts, alerts, and pipeline features on top of the same public filings.

List prices and feature claims from vendor pages (read September 2026) show what money buys on top of the free filings; read the table as a map, not a ranking.

Sources: Grantmakers.io home page (read September 2026); Candid pricing page, nonprofit-discounted rates (read September 2026); Instrumentl pricing page (read September 2026); ProPublica Nonprofit Explorer (updated August 20, 2026).

Two details decide most free-versus-paid calls. The first is that free tools do not all cap the same way. Candid's free tier gives limited search results, basic profile views and limited personalized dashboards, with one full profile view per month (Candid pricing page, read September 2026), and that single view is the binding constraint on free Candid use. Grantmakers.io has no equivalent limit, because it has no account to count against.

The second is that paying does not buy unlimited anything. Candid Premium on the monthly plan caps downloads at "Up to 250 grants per month" and "Up to 750 profiles per month", and the annual plan raises those caps to "Up to 1,000 grants per month" and "Up to 5,000 profiles per month" (Candid pricing page, read September 2026). Instrumentl's feature table claims "37k+ active RFPs & 450k+ funder profiles" on every tier including Discover, while calendar integration with Google and Outlook starts one tier up at Pre-Award (Instrumentl pricing page, read October 2026).

What the money buys, then, is cleaning, contacts, live opportunities and tracking, all layered on filings that stay free underneath.

How to Pair Grantmakers.io With Other Free and Paid Tools

Pair Grantmakers.io with other free sources first and add one paid tool only when a clear bottleneck appears. A free filing search answers whether a foundation funds your field. The funder's site answers whether the program is open and what it asks for. A paid directory earns its place when you need contacts at scale, alerts, or exports.

A workable weekly routine starts with the grantee screen: keep the foundations that show repeat giving in your region, and drop the ones whose awards cluster far below your ask. Open each survivor's full filing text in a free filing reader (the guide to a foundation 990 lookup by EIN shows how to pull the right return) and read the application-information block, because a foundation that takes no unsolicited proposals says so there and saves you the whole application.

ProPublica Nonprofit Explorer is the natural second free tool. It is a free tool to "Browse millions of annual returns filed by tax-exempt organizations", searchable by organization, person, or the full text of filings, and was last updated August 20, 2026 (ProPublica Nonprofit Explorer, updated August 20, 2026). Use it when you want the full filing image, officer compensation, or the exact application wording instead of the parsed grant rows.

Federal money needs a separate portal from the start. Grants.gov is free to search with no subscription and carries federal funding opportunities only (Grants.gov home page, read September 2026). No filing-based tool covers federal openings, so check it in parallel instead of after. The free foundation directory options roundup covers the rest of the no-cost shelf in one place.

GrantCue fits where tracking starts: its kanban pipeline, an ICS calendar feed for deadlines and fit scoring come on every plan, Free included, beside live federal, state and foundation listings, and its public directory of more than 10,000 private foundations is built from the same IRS 990-PF filings (grantcue.com, October 2026). Keep Grantmakers.io as the free verification layer, look up each survivor in GrantCue's foundation directory, then carry it into the pipeline so each funder and its deadline sit in one place.

FAQ

Is Grantmakers.io Free?

Yes. The home page states access costs $0 with no login and no paywall, and describes the project as open-source with a stated annual budget of $200 (Grantmakers.io home page, read September 2026). There are no tiers, trials, or seat limits to compare.

How Do You Search Grantees on Grantmakers.io?

Grantee search starts from the organizations that received grants, where foundation search starts from the funders (Grantmakers.io home page, read September 2026). Search a handful of peer organizations in your field and region by name, note each foundation that appears under more than one of them, and read those foundations' grant lists for award size and place before you add any to your shortlist.

How Current Is Grantmakers.io Data?

It can be no more current than the IRS release pipeline allows. The IRS updates its bulk 990 data files monthly, and its Form 990 series download page listed April 20, 2026 as the latest 2026 posting (IRS, Tax Exempt Organization Search bulk data downloads, and IRS, Form 990 series downloads, read September 2026). Recent grants reach any tool built on those filings only after the foundation files and the IRS posts the return.

Does Grantmakers.io Replace a Paid Foundation Directory?

Not for most active prospecting. Grantmakers.io calls itself "The perfect springboard to Instrumentl and FDO" (Grantmakers.io home page, read September 2026), and one commenter on Reddit called it "a good tool for playing around, but not a replacement" (Reddit thread 1sewng0, read September 2026). Screen for free there, and pay only for the contacts, alerts or tracking your finalists need.

Does Grantmakers.io Require an Account?

No. Its home page says "No login, no lock up. Your data is yours to move around as you wish." (Grantmakers.io home page, read September 2026). The trade-off is that nothing is saved for you between visits, so keep your shortlist, notes and deadlines in your own spreadsheet or tracker.

What Should I Use With Grantmakers.io for Prospecting?

Pair it with a full-text filing reader for application details, the funder's own site for deadlines, and a federal portal for public openings. ProPublica Nonprofit Explorer is a free tool to "Browse millions of annual returns filed by tax-exempt organizations" (ProPublica Nonprofit Explorer, updated August 20, 2026). Grants.gov is free to search with no subscription and carries federal funding opportunities only (Grants.gov home page, read September 2026). Keep the short list in a shared tracker with owners and dates.

What to Do With Your First Grantmakers.io Search

Run peer lookups today and keep the foundations that appear more than once. Open each repeat funder, compare its typical award size against your ask, and read the application wording in the full filing before you draft anything from a foundation grant proposal template. Log the survivors with links and dates in a grant tracker you can copy, then confirm eligibility on each funder's site this week. If that routine produces more finalists than your sheet handles, add one paid tool for contacts and alerts and keep the free search as your verification layer.