The Clay Mathematics Institute Inc
The Clay Mathematics Institute Inc is a private foundation focused on Science & Technology, based in Denver, CO. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $49.3M in total assets. In 2025, it made $2.4M in qualifying distributions. Net investment income was $8.0M.
The Clay Mathematics Institute Inc at a glance
- Total assets
- $49,265,776
- +4.5% vs 2024
- Revenue (2025)
- $8,122,451
- -571.2% vs 2024
- Qualifying distributions (2025)
- $2,350,070
- +5.6% vs 2024
- Expenses (2025)
- $2,463,953
- +9.6% vs 2024
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Qualifying Distributions | Net Investment Income |
|---|---|---|---|---|---|
| 2025 | $49,265,776 | $8,122,451 | $2,463,953 | $2,350,070 | $8,015,986 |
| 2024 | $47,165,522 | $-1,723,628 | $2,247,600 | $2,224,851 | $479,874 |
| 2023 | $39,560,723 | $705,749 | $2,049,255 | $2,030,483 | $698,452 |
| 2022 | $34,898,673 | $2,634,084 | $1,842,640 | $1,815,738 | $1,698,010 |
| 2021 | $40,095,580 | $174,598 | $1,378,930 | — | $172,533 |
| 2020 | $39,302,031 | $377,110 | $1,713,817 | — | $405,708 |
| 2019 | $38,116,899 | $1,218,304 | $1,852,405 | — | $1,140,106 |
Leadership & Key People
Officers and directors from IRS filings
The Clay Mathematics Institute Inc is led by Martin Bridson, President on every filing since 2023; 2 of 6 officers listed in 2025 are compensated.
Officers on the 2025 filing
Martin Bridson
President
On filings since 2023
40 hrs/week
$162K (2023) → $222K (2025)
Thomas M. Clay
Treasurer & Director
Director → Treasurer & Director, 2020
On filings since 2019
5 hrs/week
No compensation reported
Cassius Clay
Director
On filings since 2020
5 hrs/week
No compensation reported
Richard Clay
Director
On filings since 2020
5 hrs/week
No compensation reported
Landon Clay
Director
On filings since 2021
5 hrs/week
No compensation reported
Andrew Walker
Chief Administrator Officer
On filings since 2020
40 hrs/week
$20K (2020) → $48K (2025)
Former officers (3)
- Former: Martin Birdson (2019–2022) — President
- Former: Brian James (2019) — Chief Administrator Officer
- Former: Lavinia D. Clay (2019) — Secretary & Director
Data from IRS Form 990 filings, 2019–2025. "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
The highest reported compensation on the 2025 filing was $222K, to Martin Bridson (President). 2 officers or directors reported compensation on that filing.
Frequently asked questions about The Clay Mathematics Institute Inc
How large is The Clay Mathematics Institute Inc?
The Clay Mathematics Institute Inc reported $49.3M in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $8.1M.
What is The Clay Mathematics Institute Inc?
The Clay Mathematics Institute Inc is a private foundation focused on Science & Technology, based in Denver, CO. It holds $49.3M in total assets as of 2025.
What is The Clay Mathematics Institute Inc's EIN?
The Clay Mathematics Institute Inc's EIN (Employer Identification Number) is 13-4025978. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated October 2026. Sourced from IRS Form 990-PF filings.
Data update history
(8)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS February 18, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS March 1, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS February 9, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS March 17, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS March 11, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS February 7, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS February 4, 2026)
- IRS filings on file for fiscal years 2019–2025
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