William & Claire Dart Foundation

Foundation · Grantmaker MASON, MI EIN: 38-2562664

William & Claire Dart Foundation is a private foundation focused on Philanthropy, based in MASON, MI. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $51.7M in total assets. In 2024, it awarded 5 grants totaling $3.9M. Net investment income was $1.4M.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$51.7M

+19.5% YoY

Annual Giving

$3.9M

+16.4% YoY

Grant Count

-16.7% YoY

Avg Grant Size

$780K

+39.7% YoY

Under IRS private-foundation payout rules, William & Claire Dart Foundation reported a distributable amount of $2.8M for 2024 — the minimum it must pay out in qualifying distributions.

About William & Claire Dart Foundation

Based on IRS filings

Focus Areas

Philanthropy Foundations

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

Michigan $11.7M (94%)

Florida $800K (6%)

States

Florida Michigan

Cities

MasonSarasota

Financial History

Multi-year comparison from IRS filings

Revenue

Expenses

Qualifying Distributions

Net Investment Income

Metric	2024	2023	2022
Total Assets	$51,714,858	$43,258,527	$21,237,055
Revenue	$12,404,368	$5,568,572	$167,007
Expenses	$3,948,037	$3,358,195	$2,800,391
Qualifying Distributions	$3,903,037	$3,358,195	$2,800,391
Net Investment Income	$1,374,368	$568,572	$456,931
Distributable Amount	$2,821,803	$1,219,473	$1,036,861

Giving Over Time

Total grant dollars and number of grants per year

Grant Insights

How this funder distributes its grants

Top Recipients

Top 5 recipients in 2024

Grant Size Distribution

18 grants across all recorded years

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include Dart Foundation ($1,500,000), Dart Foundation ($900,000), Dart Foundation ($700,000).

Recipient	Purpose	Amount
Dart Foundation Mason, MI	General Support	$400,000
Dart Foundation Mason, MI	General Support	$400,000
Dart Foundation Mason, MI	General Support	$1,500,000
Dart Foundation Mason, MI	General Support	$700,000
Dart Foundation Mason, MI	General Support	$900,000

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

From 2024 filing

Name	Title	Hours	Compensation
Kenneth B Dart	President	—	—
James D Lammers	Vie President, Secretary, Treasurer	—	—

Subject Areas

Focus areas based on grantmaking activity

Philanthropy Foundations

Frequently Asked Questions

What is William & Claire Dart Foundation?

William & Claire Dart Foundation is a private foundation focused on Philanthropy, based in MASON, MI. It holds $51.7M in total assets as of 2024.

How large is William & Claire Dart Foundation?

As of 2024, William & Claire Dart Foundation holds $51.7M in total assets with $12.4M in annual revenue. It awarded 5 grants totaling $3.9M in 2024.

Where does William & Claire Dart Foundation operate?

William & Claire Dart Foundation has awarded grants in Florida, Michigan.

What size grants does William & Claire Dart Foundation award?

In 2024, William & Claire Dart Foundation awarded 5 grants totaling $3.9M — an average of about $780K per grant, based on its IRS Form 990 filings.

How much is William & Claire Dart Foundation required to give away each year?

Private foundations must generally distribute about 5% of their assets annually. For 2024, William & Claire Dart Foundation reported a distributable amount of $2.8M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.

What is William & Claire Dart Foundation's EIN?

William & Claire Dart Foundation's EIN (Employer Identification Number) is 38-2562664. IRS Form 990 filing data is available on this page for 2020–2024.