Harriet Ruth Mackay Charitable Trust

Private foundation · Grantmaker Brooklyn, OH EIN: 01-6088406

The Harriet Ruth Mackay Charitable Trust is a private foundation based in Brooklyn, Ohio. Its 2025 filing reports grants to charitable organizations, including animal-welfare and environmental organizations.

Harriet Ruth Mackay Charitable Trust at a glance

In short: Harriet Ruth Mackay Charitable Trust gave $21K across 10 grants in 2025 (avg $2K), top state New York. 0% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$21,100
+14.4% vs 2024
Grants made (2025)
10
+0.0% vs 2024
Average grant
$2,110
+14.4% vs 2024
Median grant
$2,110
Total assets
$450,207
-3.9% vs 2024
New grantees (estimate)
0% first-time grantees (0 of 10, 2025; small sample)
Primary geography
New York (30% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to Harriet Ruth Mackay Charitable Trust

Accepts unsolicited proposals
No
How to Apply

The trust states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.

Contact

Mailing address: 4900 Tiedeman Road Oh-01-49-0381, Brooklyn, OH 44144
Phone: (866) 238-8650

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who Harriet Ruth Mackay Charitable Trust funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

North Shore Animal Leag America: $2KNorth Shore Animal LeagAmerica$2KCare: $2KCare$2KThe Cousteau Society Inc: $2KThe Cousteau Society Inc$2KInt'l Fund for Animal Welfare: $2KInt'l Fund for Animal Welfare$2KWorld Wildlife Fund Inc: $2KWorld Wildlife Fund Inc$2KHumane Society of the US: $2KHumane Society of the US$2KInt'l Society for Animal Rights: $2KInt'l Society for AnimalRights$2KDooley Foundation Intermed: $2KDooley Foundation Intermed$2KSierra Club Foundation: $2KSierra Club Foundation$2KGreenpeace USA Inc: $2KGreenpeace USA Inc$2K

The largest 2025 recipient was North Shore Animal Leag America ($2K). Together the top 10 received $21K.

Grant Size Distribution

50 grants across all recorded years

50<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 50 grants of 50 (100%).

Geographic Focus

Where this funder awards grants

The 2025 grant dollars were distributed among recipients in New York (30%), Washington, DC (30%), Georgia (10%), Massachusetts (10%), and Pennsylvania (10%). The listed grants also included recipients in California.

Grant Distribution by State

7states

Share of 2025 grant dollars across all 10 itemized grants.

Cities

WashingtonAtlantaClark SummitForest HillsOaklandPort WashingtonYarmouth PortEtnaNew York

Is Harriet Ruth Mackay Charitable Trust open to new grantees?

0%

first-time grantees, 2025

In 2025, 0 of 10 grantees (0%) were first-time recipients. With only 10 grantees, that is a small sample: one grantee more or less moves the share by about 10 points. How we count

  • 100% of 2025 grantees were also funded in 2024. Method
  • Giving grew 741% from 2022 to 2025. Method
  • In 2025 it paid out 102% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2021–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$10K$20K$30K10 grants2021 10 grants2022 10 grants2023 10 grants2024 10 grants2025

From 2021 to 2025, annual grant giving ranged from $3K (2022) to $21K (2025). In 2025 it made 10 grants totaling $21K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
North Shore Animal Leag America Port Washington, NYGeneral Operating$2,110
Care Atlanta, GAGeneral Operating$2,110
The Cousteau Society Inc New York, NYGeneral Operating$2,110
Int'l Fund for Animal Welfare Yarmouth Port, MAGeneral Operating$2,110
World Wildlife Fund Inc Washington, DCGeneral Operating$2,110
Humane Society of the US Washington, DCGeneral Operating$2,110
Int'l Society for Animal Rights Clark Summit, PAGeneral Operating$2,110
Dooley Foundation Intermed Forest Hills, NYGeneral Operating$2,110
Sierra Club Foundation Oakland, CAGeneral Operating$2,110
Greenpeace USA Inc Washington, DCGeneral Operating$2,110
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2025$450,207$13,105$31,150$21,10010$23,563$8,867$23,132
2024$468,254$32,291$24,712$18,44010$20,795$28,375$21,222
2023$460,681$-1,227$26,854$20,81010$23,109$4,358$20,452
2022$488,758$23,594$8,018$2,51010$3,887$19,463$22,014
2021$473,179$83,843$13,410$7,90010—$79,694$21,496

Under IRS private-foundation payout rules, Harriet Ruth Mackay Charitable Trust reported a distributable amount of $23K for 2025 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the trust is provided. Its 2025 grants included organizations working in animal welfare and environmental conservation. The Sierra Club Foundation describes its mission as promoting efforts to educate and empower people to protect and improve the natural and human environment. The World Wildlife Fund describes its mission as conserving nature and reducing the most pressing threats to the diversity of life on Earth.

Grantmaking

In filing year 2025, the trust reported 10 grants totaling $21,100. Each grant was $2,110. Recipients included North Shore Animal League America, CARE, The Cousteau Society, the International Fund for Animal Welfare, the World Wildlife Fund, the Humane Society of the United States, the International Society for Animal Rights, Dooley Foundation Intermed, the Sierra Club Foundation, and Greenpeace USA. The listed purposes were general operating.

Leadership & Key People

Leadership team and compensation from IRS filings

KeyBank N.A. was listed as trustee on the 2025 filing.

Harriet Ruth Mackay Charitable Trust's only listed officer is Keybank N A, Trustee on every filing since 2021 (compensated).

Officers on the 2025 filing

  • Keybank N A

    Trustee

    On filings since 2021

    1 hr/week

    $5K (2021) → $6K (2025)

Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Compensation Overview

From 2025 IRS filing

Keybank N a — Trustee: $6KKeybank N aTrustee$6K

The highest reported compensation on the 2025 filing was $6K, to Keybank N a (Trustee).

Frequently asked questions about Harriet Ruth Mackay Charitable Trust

How much does Harriet Ruth Mackay Charitable Trust give each year?

Harriet Ruth Mackay Charitable Trust gave $21K across 10 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $18K across 10 grants.

What is Harriet Ruth Mackay Charitable Trust's typical grant size?

Harriet Ruth Mackay Charitable Trust's median grant in 2025 was $2,110, and its average grant was $2,110, across 10 grants on its 2025 IRS Form 990-PF.

Where does Harriet Ruth Mackay Charitable Trust give grants?

Harriet Ruth Mackay Charitable Trust's top state is New York, with 30% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were District of Columbia (30%) and Georgia (10%). The most frequent recipient cities were Washington, DC (3 grants).

Does Harriet Ruth Mackay Charitable Trust give general operating support?

Yes: 100% of Harriet Ruth Mackay Charitable Trust's 2025 grants with a stated purpose (10 of 10) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are Harriet Ruth Mackay Charitable Trust's largest grantees?

Harriet Ruth Mackay Charitable Trust's largest 2025 grantees include North Shore Animal Leag America ($2,110), Care ($2,110) and The Cousteau Society Inc ($2,110), according to its 2025 IRS Form 990-PF. Together they received 30% of its itemized 2025 grant dollars.

How large is Harriet Ruth Mackay Charitable Trust?

Harriet Ruth Mackay Charitable Trust reported $450K in total assets on its 2025 IRS Form 990-PF. It paid out $24K in qualifying distributions that year, against a required minimum of $23K (roughly 5% of its investment assets).

What does Harriet Ruth Mackay Charitable Trust fund?

No mission statement for the trust is provided. Its 2025 grants included organizations working in animal welfare and environmental conservation. See mission & focus areas ↑

How do I apply for a grant from Harriet Ruth Mackay Charitable Trust?

The trust states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Harriet Ruth Mackay Charitable Trust's EIN?

Harriet Ruth Mackay Charitable Trust's EIN (Employer Identification Number) is 01-6088406. IRS Form 990 filing data is available on this page for 2021–2025.

Does Harriet Ruth Mackay Charitable Trust accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(1)

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2021–2025

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Harriet Ruth Mackay Charitable Trust's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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