CATALYST4 Inc
To foster, support, promote and conduct activities designed to benefit and improve the environment and global health.
CATALYST4 Inc at a glance
In short: CATALYST4 Inc gave $43.0M across 9 grants in 2024 (avg $4.8M), mostly in Delaware. Source: 2024 IRS Form 990.
- Annual giving (2024)
- $43,025,060
- -48.8% vs 2023
- Grants made (2024)
- 9
- +28.6% vs 2023
- Average grant
- $4,780,562
- -60.2% vs 2023
- Median grant
- $2,555,060
- Total assets
- $1,099,305,270
- -3.5% vs 2023
- Primary geography
- Delaware (58% of itemized 2024 grant dollars)
- Latest 990 filing
- Form 990, 2024 View filing
Data from IRS Form 990, 2024; updated September 2026.
Who CATALYST4 Inc funds
How this funder distributes its grants
Top Recipients
Top 9 recipients in 2024
The largest 2024 recipient was Sixteen Thirty Fund ($25.0M). Together the top 9 received $43.0M.
Grant Size Distribution
18 grants across all recorded years
The most common grant size was in the $1–5M range: 7 grants of 18 (39%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 9 itemized grants.
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2022 to 2024, annual grant giving ranged from $12.7M (2022) to $84.0M (2023). In 2024 it made 9 grants totaling $43.0M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Sixteen Thirty Fund Newark, DE | For the Purpose of Environmental Programs | $25,000,000 |
| Energy Action Fund San Francisco, CA | For the Purpose of Environmental Programs | $6,600,000 |
| League of Conservation Voters Inc Washington, DC | For the Purpose of Environmental Programs | $3,545,000 |
| Spark NS Inc Los Angeles, CA | For the purpose of central nervous system ("cns") programs | $3,150,000 |
| Humboldt Area Foundation Eureka, CA | For the Purpose of Environmental Programs | $2,555,060 |
| Greenlight Action Washington, DC | For the Purpose of Environmental Programs | $1,200,000 |
| Fund for a Better Future Inc Sacramento, CA | For the Purpose of Environmental Programs | $550,000 |
| Environmental Defense Action Fund New York, NY | For the Purpose of Environmental Programs | $400,000 |
| Wastewater Action Alliance Inc Palo Alto, CA | For the Purpose to Improve Global Health | $25,000 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2024 | $1,099,305,270 | $48,489,989 | $80,949,362 | $43,025,060 | 9 | $48,489,989 |
| 2023 | $1,139,515,662 | $700,829,467 | $88,039,993 | $84,029,854 | 7 | $86,995,949 |
| 2022 | $430,537,935 | $3,353,990 | $13,097,520 | $12,700,000 | 2 | $3,353,990 |
| 2021 | $469,174,402 | $471,952,104 | $93,759 | — | — | $-905,270 |
About CATALYST4 Inc
Based on IRS filings
CATALYST4 Inc is a public charity focused on Environment & Animals, based in Palo Alto, CA. IRS filing data is available from 2021 through 2024. As of 2024, the organization holds $1.1B in total assets. In 2024, it awarded 9 grants totaling $43.0M. Net investment income was $48.5M.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
CATALYST4 Inc is led by Robert Brown, President & Director since 2022 (on filings since 2021); none of the 4 officers listed in 2024 report compensation.
Officers on the 2024 filing
Robert Brown
President & Director
President & Secretary → President & Director, 2022
On filings since 2021
10 hrs/week
No compensation reported
Ekemini Riley
Director
Board Member → Director, 2023
On filings since 2021
0.5 hrs/week
No compensation reported
Mark Vorsatz
Director
Board Member → Director, 2023
On filings since 2021
0.8 hrs/week
No compensation reported
Tara Farnsworth
Secretary & Treasurer
Treasurer → Secretary & Treasurer, 2022
On filings since 2021
1 hr/week
No compensation reported
Data from IRS Form 990 filings, 2021–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about CATALYST4 Inc
How much does CATALYST4 Inc give each year?
CATALYST4 Inc gave $43.0M across 9 grants in 2024, according to its 2024 IRS Form 990. In 2023 it gave $84.0M across 7 grants.
What is CATALYST4 Inc's typical grant size?
CATALYST4 Inc's median grant in 2024 was $2,555,060, and its average grant was $4,780,562, across 9 grants on its 2024 IRS Form 990.
Where does CATALYST4 Inc give grants?
CATALYST4 Inc gives mostly in Delaware: 58% of the grant dollars itemized on its 2024 IRS Form 990 went to recipients there. The next largest states were California (30%) and District of Columbia (11%). The most frequent recipient cities were Washington, DC (2 grants).
Does CATALYST4 Inc give general operating support?
Not in 2024: none of the 9 grants with a stated purpose on CATALYST4 Inc's 2024 IRS Form 990 were described as general or operating support. Recurring purposes include "For the Purpose of Environmental Programs" (7 grants).
Who are CATALYST4 Inc's largest grantees?
CATALYST4 Inc's largest 2024 grantees include Sixteen Thirty Fund ($25,000,000), Energy Action Fund ($6,600,000) and League of Conservation Voters Inc ($3,545,000), according to its 2024 IRS Form 990. Together they received 82% of its itemized 2024 grant dollars.
How large is CATALYST4 Inc?
CATALYST4 Inc reported $1.1B in total assets on its 2024 IRS Form 990. Its revenue that year was $48.5M.
What is CATALYST4 Inc?
CATALYST4 Inc is a public charity focused on Environment & Animals, based in Palo Alto, CA. It holds $1.1B in total assets as of 2024.
What is CATALYST4 Inc's EIN?
CATALYST4 Inc's EIN (Employer Identification Number) is 87-3323607. IRS Form 990 filing data is available on this page for 2021–2024.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(4)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2022 (received by the IRS November 14, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS November 15, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS November 11, 2025)
- IRS filings on file for fiscal years 2021–2024
Explore Open Grants
Browse active grant opportunities in CATALYST4 Inc's focus areas in our free grants database
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