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Institute of Nuclear Power Operations
Also known as Inpo
Institute of Nuclear Power Operations reported $120.6 million in revenue and $115.2 million in expenses for calendar year 2025. Of every $100 it spent, $73.41 went to program services, $26.59 to management and general costs and $0.00 to fundraising. Its largest source of revenue was contributions and grants: 94.8% of the total. The highest compensation it reported for one person was $6,026,927 (President/CEO). 267 people received more than $100,000 in reportable compensation. Revenue rose 12% between 2019 and 2025. Source: Form 990, 2025.
Where $100 of spending went
Calendar year 2025 · Form 990, Part IX, line 25 · total expenses $115MFor context, the median across 185 covered public & societal benefit charities: $88.81 programs, $11.18 management, $0.01 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 $121MThe 990 scorecard · same measures for every charity, no grades
| Measure | 2025 | Median |
|---|---|---|
| Program services Part IX 25(B) ÷ 25(A) | 73.4% | 84.9% |
| Management & general Part IX 25(C) ÷ 25(A) | 26.6% | 10.7% |
| Fundraising Part IX 25(D) ÷ 25(A) | 0.0% | 0.0% |
| Fundraising cost per $1 of contributions Part IX 25(D) ÷ Part VIII 1h | $0.00 | $0.01 |
| Contributions & grants share of revenue Part VIII 1h ÷ 12 | 94.8% | 83.8% |
| Government grants share of revenue Part VIII 1e ÷ 12 | 0.0% | 0.0% |
| Program service revenue share Part VIII 2g ÷ 12 | 0.0% | 3.2% |
| Highest reported compensation Part VII-A, columns D–F | $6,026,927 | $357,133 |
| Highest compensation as share of expenses Part VII-A ÷ Part IX 25(A) | 5.23% | 1.52% |
| People paid over $100,000 Part VII, line 2 | 267 | 12 |
| Net assets, in months of expenses Part X 33(B) ÷ monthly expenses | 8.8 | 10.5 |
| Independent voting board members Part VI 1a–1b | 13 of 14 | 100.0% |
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 expenseINPO conducts periodic evaluations to promote the highest levels of safety and reliability in the operation, maintenance, and support of nuclear power plants. All evaluations are as performance-oriented as practicable and are based on performance objectives and criteria developed by INPO, with industry review. INPO reviews and analyzes operating experience and events from both U.S. and non-U.S. nuclear plants. The program is designed to provide in-depth analysis of nuclear operating experience and to apply the lessons learned across the industry
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 |
|---|---|---|---|---|
| President/CEO Director/trustee, officer, 40.00 hrs/week | $2,783,867 | $0 | $3,243,060 | $6,026,927 |
| Exec Vice President Officer, 40.00 hrs/week | $885,367 | $0 | $898,421 | $1,783,788 |
| Exec. Vice President Officer, 40.00 hrs/week | $812,188 | $0 | $820,114 | $1,632,302 |
| Sr. Vice President Officer, 40.00 hrs/week | $934,820 | $0 | $525,211 | $1,460,031 |
| Vice President Officer, 40.00 hrs/week | $863,090 | $0 | $437,335 | $1,300,425 |
| CFO/Sr.Vice President Officer, 40.00 hrs/week | $599,477 | $0 | $540,578 | $1,140,055 |
| Sr. Vice President Officer, 40.00 hrs/week | $511,110 | $0 | $489,750 | $1,000,860 |
| Vice President Officer, 40.00 hrs/week | $459,527 | $0 | $389,717 | $849,244 |
267 people received more than $100,000 in reportable compensation from Institute of Nuclear Power Operations (Part VII, line 2). Compensation of current officers, directors and key employees totaled $12M (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–1b14 · 13 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 4No
- 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 5382
Correct a figure or respond
Every number above is copied from Institute of Nuclear Power Operations's own Form 990. If one doesn't match the filing, that's our error and we'll fix it. If you work for Institute of Nuclear Power Operations, you can publish a response that is linked from this page.
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Of every $100 Institute of Nuclear Power Operations spent in 2025, $73.41 went to programs. The full breakdown, from its IRS Form 990:
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Questions people ask
How much of Institute of Nuclear Power Operations's spending goes to programs?
In calendar year 2025, Institute of Nuclear Power Operations reported that 73.4% of its $115.2 million in expenses went to program services, 26.6% to management and general and 0.0% to fundraising (Form 990, Part IX).
How much does Institute of Nuclear Power Operations pay its top executive?
The largest total compensation Institute of Nuclear Power Operations reported for one person in calendar year 2025 was $6,026,927, for the role of President/CEO (Form 990, Part VII, including compensation from related organizations and other compensation).
Where does Institute of Nuclear Power Operations get its money?
Of $120.6 million in revenue in calendar year 2025, 94.8% came from contributions and grants and 0.0% from program service revenue (Form 990, Part VIII).
Is Institute of Nuclear Power Operations a registered charity?
The IRS lists EIN 58-1382198 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 202622329349300932 · read the filing
- 2024: Form 990 for calendar year 2024, object 202542839349301764 · read the filing
- 2023: Form 990 for calendar year 2023, object 202413109349300011 · read the filing
- 2022: Form 990 for calendar year 2022, object 202312859349301826 · read the filing
- 2021: Form 990 for calendar year 2021, object 202242669349300214 · read the filing
- 2020: Form 990 for calendar year 2020, object 202103199349309005 · read the filing
- 2019: Form 990 for calendar year 2019, object 202002869349301750 · read the filing
All filings for EIN 58-1382198: ProPublica Nonprofit Explorer · IRS Tax Exempt Organization Search. Figures are as the organization reported them; we have not audited them.