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Michigan · Public charity

Robert H Tannahill Foundation

The robert h. Tannahill foundation supports the community foundation for southeast michigan (cfsem) by supporting organizations whose work furthers cfsem's mission. The community foundation for southeast michigan's mission is to build the resources, relationships and expertise required to expand equitable access to opportunities across…

$3.2M
Granted FY2024(still arriving)
8
Grants FY2024
8
Organizations funded FY2023
0%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$320,000
Largest grant, FY2024
$1,600,000
Organizations funded a year
8 to 8
FY2020 to FY2023
States reached, FY2024
1
Total assets, FY2024
$62M

How open it is to new grantees

In FY2023, 0% of the organizations Robert H Tannahill Foundation funded were first-time grantees, receiving 0% of its grant dollars.

New vs renewed · share of each year

In FY2023, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

50%100%’21’22’23
RenewedFirst-time
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2024still arriving8$3.2M0%
FY20238$3.1M0%
FY20228$3.1M0%
FY20218$3.1M0%
FY20208$3.0Mn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.

Arts & Culture$10MReligion$3.1MEducation$1.9M

Top grantees

Largest recipients by total granted, FY2020 to FY2024, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
The Detroit Institute of Arts$7,750,00053%
Detroit Symphony Orchestra Inc$1,937,50051%
The Protestant Episcopal Diocese of Michigan Inc$1,550,0005n/a
Protestant Episcopal Church in the US of American Episcopal Church$1,550,0005n/a
Wayne State University$1,162,5005n/a
College for Creative Studies$775,00050%
Grosse Pointe War Memorial Association$387,50053%
Detroit Artists Market$387,500531%

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 set of overlaps that mostly run through this funder rather than between each other.

Community Foundation for Southeast MichiganMI13.4× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation for Southeast Michigan

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 Robert H Tannahill Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Robert H Tannahill Foundation?

Find your warmest path to Robert H Tannahill Foundation 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 Robert H Tannahill Foundation

How much does Robert H Tannahill Foundation give?
Robert H Tannahill Foundation reported 8 grants totaling $3,200,000 in its FY2024 IRS filing. It funded between 8 and 8 organizations a year over FY2020 to FY2023.
What does Robert H Tannahill Foundation fund?
By grant dollars over FY2020 to FY2024, its largest causes are Arts & Culture (68%), Religion (20%), Education (13%).
Who are Robert H Tannahill Foundation's largest grantees?
By total granted over FY2020 to FY2024: The Detroit Institute of Arts ($7.8M), Detroit Symphony Orchestra Inc ($1.9M), The Protestant Episcopal Diocese of Michigan Inc ($1.6M).
Does Robert H Tannahill Foundation fund new organizations?
In FY2023, 0% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Robert H Tannahill Foundation?
Its strongest co-funders, measured against what their size predicts, include Community Foundation for Southeast Michigan.
Where is Robert H Tannahill Foundation based?
Robert H Tannahill Foundation is based in MI.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 8 grantees we resolved, 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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