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Michigan · Public charity

Harbor Humane Society

To provide a safe harbor for animals entrusted to our care as we strive to secure the animals future through our adoption, outreach, and educational programs.

$49k
Granted FY2025(still arriving)
Read the full brief
Total assets, FY2025
$3.3M

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

BISSELL Pet FoundationThe Pfizer Foundation…Network for GoodNatl Christian Charit…Fidelity Investments …Amazonsmile Foundation
BISSELL Pet FoundationMI13.3× affinity4 shared granteesties to 5 of 5Hover any node to trace its alignments.Compare side by side →

Open a dossier: BISSELL Pet Foundation · The Pfizer Foundation Inc · Network for Good · Natl Christian Charitable Fdn Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare Harbor Humane Society with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Harbor Humane Society?

Find your warmest path to Harbor Humane Society through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About Harbor Humane Society

How much does Harbor Humane Society give?
Harbor Humane Society reported $48,694 in grants in its FY2025 IRS filing. Individual grant detail isn't itemized in the e-filed return we have. It is referenced on an attached schedule, or the latest filing isn't in our corpus yet.
Which funders back the same organizations as Harbor Humane Society?
Its strongest co-funders, measured against what their size predicts, include BISSELL Pet Foundation, The Pfizer Foundation Inc, Network for Good.
Where is Harbor Humane Society based?
Harbor Humane Society is based in MI.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home