Society of Rheology Incorporated
Advancing and disseminating information on the deformation and flow of matter to the scientific and educational communities worldwide.
Society of Rheology Incorporated at a glance
- Total assets
- $2,659,231
- +2.5% vs 2023
- Revenue (2024)
- $776,163
- +144.8% vs 2023
- Net investment income (2024)
- $141,828
- -608.1% vs 2023
- Expenses (2024)
- $705,600
- +224.0% vs 2023
- Latest 990 filing
- Form 990, 2024 View filing
Data from IRS Form 990, 2024; updated September 2026.
Who Society of Rheology Incorporated funds
How this funder distributes its grants
Grant Size Distribution
4 grants across all recorded years
The most common grant size was under $50K: 4 grants of 4 (100%).
How Society of Rheology Incorporated gives
- Giving grew 23% from 2020 to 2023. Method
From the foundation's IRS Form 990 filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2023, annual grant giving ranged from $21K (2021) to $46K (2022). In 2023 it made 1 grant totaling $38K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| International Congress of Rheology | Travel Grants | $38,127 |
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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 | $2,659,231 | $776,163 | $705,600 | — | — | $141,828 |
| 2023 | $2,593,852 | $317,080 | $217,752 | $38,127 | 1 | $-27,913 |
| 2022 | $2,376,905 | $582,888 | $600,560 | $45,567 | 1 | $3,714 |
| 2021 | $2,460,262 | $540,787 | $326,745 | $20,532 | 1 | $45,727 |
| 2020 | $2,192,451 | $333,104 | $186,799 | $31,000 | 1 | $10,832 |
About Society of Rheology Incorporated
Based on IRS filings
Society of Rheology Incorporated is a public charity focused on Science & Technology, based in College Park, MD. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $2.7M in total assets. Net investment income was $142K.
Focus Areas
Leadership & Key People
Officers and directors from IRS filings
Society of Rheology Incorporated is led by Jonathan P. Rothstein, President since 2023 (on filings since 2020); none of the 10 officers listed in 2024 report compensation.
Officers on the 2024 filing
Jonathan P. Rothstein
President
Member at La → Vice President & Int Treasurer, 2022
Vice President & Int Treasurer → President, 2023
On filings since 2020
No compensation reported
Anne M. Grillet
Past President
Vice President → President, 2022
President → Past President, 2023
On filings since 2020
No compensation reported
Kalman Migler
Secretary
On filings since 2020
No compensation reported
Dimitris Vlassopoulos
Editor
On filings since 2022
No compensation reported
Kelly Schultz
Member at La
On filings since 2022
No compensation reported
Chuqiao Elise Chen
Student Representative
On filings since 2023
No compensation reported
Evelyne Van Ruymbeke
Member at La
On filings since 2023
No compensation reported
Jeff Morris
Vice President
On filings since 2023
No compensation reported
S. Lisa Biswal
Treasurer
On filings since 2023
No compensation reported
Simon A. Rogers
Member at La
On filings since 2023
No compensation reported
Former officers (11)
- Former: Michael Graham (2020–2022) — Past President
- Former: Chunzi Liu (2022) — Student Representative
- Former: Maryam Sepehr (2022) — Member at La
- Former: Randy Ewoldt (2022) — Member at La
- Former: Ania Bukowski (2020–2021) — Editiorial A
- Former: Anke Lindner (2020–2021) — Member at La
- Former: Christopher White (2020–2021) — Treasurer
- Former: Marie-Claude Heuzey (2020–2021) — Member at La
- Former: Norman Wagner (2020–2021) — Past President
- Former: Ralph Colby (2020–2021) — Editor
- Former: Jennifer Mills (2021) — Student Representative
Data from IRS Form 990 filings, 2020–2024. "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 Society of Rheology Incorporated
How large is Society of Rheology Incorporated?
Society of Rheology Incorporated reported $2.7M in total assets on its 2024 IRS Form 990. Its revenue that year was $776K.
What is Society of Rheology Incorporated?
Society of Rheology Incorporated is a public charity focused on Science & Technology, based in College Park, MD. It holds $2.7M in total assets as of 2024.
What is Society of Rheology Incorporated's EIN?
Society of Rheology Incorporated's EIN (Employer Identification Number) is 13-6203476. IRS Form 990 filing data is available on this page for 2020–2024.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2024
Explore Open Grants
Browse active grant opportunities in Society of Rheology Incorporated's focus areas in our free grants database
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