American Nuclear Society
American Nuclear Society reported $15.1 million in revenue and $15.3 million in expenses for calendar year 2025. Of every $100 it spent, $88.25 went to program services, $8.74 to management and general costs and $3.01 to fundraising. Its largest source of revenue was program service revenue such as fees, sales and contracts: 67.0% of the total. Government grants made up 5.3%. The highest compensation it reported for one person was $627,851 (EXECUTIVE DIRECTOR/CEO). 11 people received more than $100,000 in reportable compensation. Revenue rose 39% between 2019 and 2025. Source: Form 990, 2025.
Where $100 of spending went
Calendar year 2025 · Form 990, Part IX, line 25 · total expenses $15MFor context, the median across 192 covered science & technology charities: $84.33 programs, $15.67 management, $0.00 fundraising (medians computed separately, so they may not sum to $100).
Where $100 of revenue came from
Calendar year 2025 · Form 990, Part VIII · total revenue $15MThe 990 scorecard · same measures for every charity, no grades
| Measure | 2025 | Median |
|---|---|---|
| Program services Part IX 25(B) ÷ 25(A) | 88.3% | 83.2% |
| Management & general Part IX 25(C) ÷ 25(A) | 8.7% | 15.5% |
| Fundraising Part IX 25(D) ÷ 25(A) | 3.0% | 0.0% |
| Fundraising cost per $1 of contributions Part IX 25(D) ÷ Part VIII 1h | $0.13 | $0.00 |
| Contributions & grants share of revenue Part VIII 1h ÷ 12 | 24.2% | 51.6% |
| Government grants share of revenue Part VIII 1e ÷ 12 | 5.3% | 3.2% |
| Program service revenue share Part VIII 2g ÷ 12 | 67.0% | 19.2% |
| Highest reported compensation Part VII-A, columns D–F | $627,851 | $513,729 |
| Highest compensation as share of expenses Part VII-A ÷ Part IX 25(A) | 4.10% | 1.72% |
| People paid over $100,000 Part VII, line 2 | 11 | 27 |
| Net assets, in months of expenses Part X 33(B) ÷ monthly expenses | 18.3 | 14.7 |
| Independent voting board members Part VI 1a–1b | 20 of 20 | 94.3% |
A median is context, not a target: hospitals, universities, food banks and grantmakers spend in very different ways. What these measures can and can't tell you.
What the money paid for, in its own words
2025 · Form 990, Part III · the three largest programs by expenseMeetings and national conventions: expenses incurred for two national meetings and 8 topical meetings with scientific and education presentations. Approximately 6,611 professionals, scientists, engineers, students and guests attended our meetings in 2025
Member services: expenses incurred for support service projects, member services, member and subscription promotions, honors and awards, scholarships, officer support and special projects to promote nuclear science
Publications: expenses incurred for 4 recurring scientific journals, 2 magazines provided to members and commercially, books, newsletters, meeting proceedings, special reports to enhance and promote nuclear science
Highest reported compensation
2025 · Form 990, Part VII, Section A · roles as filed; names are in the filing, not here| Role | From this org | From related orgs | Other | Total |
|---|---|---|---|---|
| EXECUTIVE DIRECTOR/CEO Officer, 40.00 hrs/week | $543,050 | $0 | $84,801 | $627,851 |
| CHIEF FINANCIAL OFFICER Officer, 40.00 hrs/week | $167,961 | $0 | $77,943 | $245,904 |
| DIRECTOR OF DEVELOPMENT Highest compensated employee, 40.00 hrs/week | $158,010 | $0 | $61,485 | $219,495 |
| DIRECTOR OF SALES Highest compensated employee, 40.00 hrs/week | $138,288 | $0 | $50,181 | $188,469 |
| DIRECTOR OF PUBLICATIONS Highest compensated employee, 40.00 hrs/week | $126,795 | $0 | $49,710 | $176,505 |
| DIRECTOR OF PROGRAMS Highest compensated employee, 40.00 hrs/week | $137,023 | $0 | $28,743 | $165,766 |
| DIRECTOR OF COMMUNICATIONS Highest compensated employee, 40.00 hrs/week | $132,110 | $0 | $21,296 | $153,406 |
| COO/DIR, MEETINGS (THRU 7/2025) Officer, 40.00 hrs/week | $103,363 | $0 | $27,556 | $130,919 |
11 people received more than $100,000 in reportable compensation from American Nuclear Society (Part VII, line 2). Compensation of current officers, directors and key employees totaled $1.0M (Part IX, line 5).
7 years of filings
Form 990, Parts I, VII, IX and X · each row is that year's own filing, linkedGovernance answers, as filed
2025 · the organization's own yes/no answers; explanations, if any, are in Schedule O of the filing · what each means- Voting board members, and how many are independent Part VI, lines 1a–1b20 · 20 independent
- Audited financial statements Part XII 2bYes
- Conflict-of-interest policy Part VI 12aYes
- Whistleblower policy Part VI 13Yes
- Document retention policy Part VI 14Yes
- Independent process for top executive pay Part VI 15aYes
- Board given the 990 before filing Part VI 11aYes
- Family or business ties among insiders Part VI 2No
- Aware of a significant diversion of assets Part VI 5No
- Excess benefit transaction with an insider Part IV 25aNo
- Loans to or from insiders outstanding Part IV 26No
- Lobbying, or a 501(h) election in effect Part IV 4Yes
- Over $15,000 of professional fundraising services Part IV 18No
- Over $10,000 of activity outside the U.S. Part IV 14bYes
- Employees Part I, line 545
- Volunteers Part I, line 6500
Largest outside contractors
2025 · Form 990, Part VII, Section B · businesses only| ALCHERYTHM EVENTS LLC Audio / visual services | $371,073 |
| ST CROIX PRESS Publishing services | $317,073 |
| CONGRESSIONAL ENERGY ENGAGEMENT Leadership programming | $187,961 |
| AAVEX TECHNOLOGY CORP It support services | $154,254 |
| KINGWILL COMPANY INC Advertising sales | $127,628 |
Individuals listed as contractors are left out. 7 contractors were paid more than $100,000 in all.
Private foundation grants it received
2 private foundations reported grants to American Nuclear Society totaling $2,605 on their tax year 2023 Form 990-PF returns. See which foundations, on WHOFUNDS.
Source: WHOFUNDS open grant graph, matched from Form 990-PF Part XV.
Correct a figure or respond
Every number above is copied from American Nuclear Society's own Form 990. If one doesn't match the filing, that's our error and we'll fix it. If you work for American Nuclear Society, you can publish a response that is linked from this page.
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Of every $100 American Nuclear Society spent in 2025, $88.25 went to programs. The full breakdown, from its IRS Form 990:
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All science & technology charities · Largest charities in Illinois
Questions people ask
How much of American Nuclear Society's spending goes to programs?
In calendar year 2025, American Nuclear Society reported that 88.3% of its $15.3 million in expenses went to program services, 8.7% to management and general and 3.0% to fundraising (Form 990, Part IX).
How much does American Nuclear Society pay its top executive?
The largest total compensation American Nuclear Society reported for one person in calendar year 2025 was $627,851, for the role of EXECUTIVE DIRECTOR/CEO (Form 990, Part VII, including compensation from related organizations and other compensation).
Where does American Nuclear Society get its money?
Of $15.1 million in revenue in calendar year 2025, 24.2% came from contributions and grants (including 5.3% from government grants) and 67.0% from program service revenue (Form 990, Part VIII).
Is American Nuclear Society a registered charity?
The IRS lists EIN 81-1658523 as a 501(c)(3) organization (publicly supported organization (509(a)(2))), and its records show contributions as tax-deductible. Form 990 filings on record here cover tax years 2019, 2020, 2021, 2022, 2023, 2024, 2025. A filing shows what the organization reported; it doesn't by itself show whether a program works.
Sources
- 2025: Form 990 for calendar year 2025, object 202602189349301400 · read the filing
- 2024: Form 990 for calendar year 2024, object 202522389349301502 · read the filing
- 2023: Form 990 for calendar year 2023, object 202432409349300218 · read the filing
- 2022: Form 990 for calendar year 2022, object 202303169349300505 · read the filing
- 2021: Form 990 for calendar year 2021, object 202241649349300509 · read the filing
- 2020: Form 990 for calendar year 2020, object 202112239349300416 · read the filing
- 2019: Form 990 for calendar year 2019, object 202022549349301562 · read the filing
All filings for EIN 81-1658523: ProPublica Nonprofit Explorer · IRS Tax Exempt Organization Search. Figures are as the organization reported them; we have not audited them.