Bill & Marian Cook Foundation
The Bill & Marian Cook Foundation is a private grantmaking foundation based in Scottsdale, Arizona. Established in 1997, it operates as a 501(c)(3) organization with a focus on supporting charitable causes through strategic philanthropic grants.
Financial Overview
From 2024 IRS Form 990-PF · View filing
Total Assets
$26.5M
+0.6% YoY
Annual Giving
$1.3M
+30.9% YoY
Grant Count
18
+5.9% YoY
Avg Grant Size
$71K
+23.6% YoY
Under IRS private-foundation payout rules, Bill & Marian Cook Foundation reported a distributable amount of $1.6M for 2024 — the minimum it must pay out in qualifying distributions.
Mission & Focus Areas
The foundation does not have a publicly stated mission statement. However, its grantmaking priorities include:
- Medical Research: Treatment for Lyme disease and related research
- Public Policy: Support for sound public policy initiatives
- Education: Scholarships and educational programs
- Healthcare: Disease-specific research and fellowships
- Environmental Education: Grazing education programs
- Disaster Relief: Emergency response funding
- Human Services: Support for at-risk children and related services
Grantmaking
The foundation made 22 grants in 2024, including:
Grant Range
& Range:**
Average Grant
amount varies by program
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Geographic Focus
Where this funder awards grants
The foundation primarily funds organizations in:
- Montana
- Arizona
- Virginia
Grant Distribution by State
States
Cities
Financial History
Multi-year comparison from IRS filings
As of Fiscal Year 2024:
- Total Assets: $26,461,054
- Total Giving: $1,281,000
- Total Revenues: $1,827,870
- Total Expenses: $1,672,467
- Giving Rate: 4.6%
As of Fiscal Year 2023:
- Total Assets: $26,305,651–$26.3M
- Total Giving: $1,215,119
- Total Revenue: $914,831
- Total Expenses: $1,373,607
The foundation has zero employees and zero liabilities.
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $26,461,054 | $26,305,651 | $26,764,428 |
| Revenue | $1,827,870 | $914,831 | $2,550,708 |
| Expenses | $1,672,467 | $1,373,607 | $1,797,552 |
| Qualifying Distributions | $1,281,000 | $1,215,119 | $1,610,381 |
| Net Investment Income | $1,420,318 | $756,343 | $2,419,559 |
| Distributable Amount | $1,566,347 | $1,434,255 | $1,460,245 |
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2024
Grant Size Distribution
107 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2024 grants, the largest include Drexel University ($175,000), Goldwater Institute ($150,000), Greater Missoula Family ($150,000).
| Recipient | Purpose | Amount |
|---|---|---|
| Alzheimers Disease Association Chicago, IL | FOR 2 STUDIES IN MARVA CHRISTIAN'S HONOR | $50,000 |
| AZ Liberty Network Tempe, AZ | leadership training | $20,000 |
| Camelot Theraputic Riding Scottsdale, AZ | 2023-2024 award | $25,000 |
| Drexel University Philadelphia, PA | research | $175,000 |
| Eyecorp Dallas, TX | FOR EYE SURGERY CENTERS IN AFRICA | $35,000 |
| Focus On Lyme Paradise Valley, AZ | research for Lyme | $105,000 |
| Forsyth Insitute Somerville, MA | dental research | $50,000 |
| Goldwater Institute Phoenix, AZ | support sound public policy | $150,000 |
| Greater Missoula Family Missoula, MT | FOR BUILDING 4 YR COMMITMENT | $150,000 |
| Holistic Management International Albuquerque, NM | For Grazing Education | $70,000 |
Leadership & Key People
Leadership team and compensation from IRS filings
The foundation is led by:
- Paul Tantet – Officer (15 hours/week, $64,000 compensation)
- Ninon Tantet – Secretary/Treasurer (15 hours/week, $64,000 compensation)
- Calvin Christian – Vice President (15 hours/week, $64,000 compensation)
Compensation Overview
From 2024 IRS filing
From 2024 filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Ninon Tantet | President | 15 | $64,000 |
| Calvin T Christian | Vice President | 15 | $64,000 |
| Paul Tantet | Director | 15 | $64,000 |
Contact Information
Address: 23233 N Pima Rd Ste 113 PMB 359 Scottsdale, AZ 85255
Subject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What does Bill & Marian Cook Foundation fund?
The foundation does not have a publicly stated mission statement. However, its grantmaking priorities include: • **Medical Research**: Treatment for Lyme disease and related research • **Public Policy**: Support for sound public policy initiatives • **Education**: Scholarships and educational programs • **Healthcare**: Disease-specific research and fellowships • **Environmental Education**: Grazing education programs • **Disaster Relief**: Emergency response funding • **Human Services**: Suppor…
How do I apply for a grant from Bill & Marian Cook Foundation?
**Grant Size & Range:** • Typical awards range from $2,000 to $200,000 • Median grant amount: $35,000–$40,000 • Average grant amount varies by program **Recent Grant Activity:** The foundation made 22 grants in 2024, including: • Drexel University: $175,000 (Research) • Goldwater Institute: $150,000 (Support Sound Public Policy) • Missoula Family YMCA: $150,000 (Building 4-Year Commitment) **Grant Programs:** • Support Sound Public Policy (averaging $145,000 per grant) • Research for Lyme Testi…
Where does Bill & Marian Cook Foundation make grants?
The foundation primarily funds organizations in: • Montana • Arizona • Virginia
What size grants does Bill & Marian Cook Foundation award?
In 2024, Bill & Marian Cook Foundation awarded 18 grants totaling $1.3M — an average of about $71K per grant, based on its IRS Form 990 filings.
How much is Bill & Marian Cook Foundation required to give away each year?
Private foundations must generally distribute about 5% of their assets annually. For 2024, Bill & Marian Cook Foundation reported a distributable amount of $1.6M on its IRS Form 990-PF — the minimum it must pay out in qualifying distributions.
What is Bill & Marian Cook Foundation's EIN?
Bill & Marian Cook Foundation's EIN (Employer Identification Number) is 31-1492927. IRS Form 990 filing data is available on this page for 2019–2024.
Explore Open Grants
Browse active grant opportunities in Bill & Marian Cook Foundation's focus areas in our free grants database
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Data last updated June 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.