Foundation for Nuclear Studies
Donations deductibleFoundation for Nuclear Studies' network
9 people9 organisationsi9 people and 9 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (9). Violet dotted lines (9) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.The board
9 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 9 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Maria Korsnick Chair | Chair | 2018 | 8 yrs |
| Bryan Anderson | Board Member | 2023 | 3 yrs |
| Charles Pardee | Board Member | 2020 | 6 yrs |
| Jack Edlow | Board Member | 2018 | 8 yrs |
| John Hopkins | Board Member | 2018 | 8 yrs |
| Kathleen Barron | Board Member | 2021 | 5 yrs |
| Mark Peters | Board Member | 2018 | 8 yrs |
| Neil Chatterjee | Board Member | 2022 | 4 yrs |
| Todd Allen | Board Member | 2022 | 4 yrs |
Under 5 years5 to 6 years6 years or more
Officers and senior leadership
5 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Ellen Ginsberg | Treasurer/Clerk | since 2018 |
| Helen Milby | Executive Director | since 2018 |
| Helen Milby See Sched O | Executive Director (Until 04/2021) | 2021 |
| Leeann Petersen | Executive Director | since 2022 |
| Leeann Petersen See Sched O | Executive Director (From 08/2021) | 2021 |
Pay and hours
year to 31 December 2024iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Maria Korsnick | Chair | 0.5 | $0 | ||
| Jack Edlow | Board Member | 0.5 | $0 | ||
| John Hopkins | Board Member | 0.5 | $0 | ||
| Charles Pardee | Board Member | 0.5 | $0 | ||
| Mark Peters | Board Member | 0.5 | $0 | ||
| Kathleen Barron | Board Member | 0.5 | $0 | ||
| Todd Allen | Board Member | 0.5 | $0 | ||
| Neil Chatterjee | Board Member | 0.5 | $0 | ||
| Bryan Anderson | Board Member | 0.5 | $0 | ||
| Leeann Petersen | Executive Director | 20 | $0 | ||
| Ellen Ginsberg | Treasurer | 0.5 | $0 |
No pay was reported for anyone in Part VII on this return.
Colorado roster
7 listediOfficers, directors and trustees from the latest filing with the Colorado Secretary of State (document 20263019359). Titles are as filed; some entries are registered agents or custodians of records rather than board members. Source: data.colorado.gov, public domain.| Name | Title as filed |
|---|---|
| Leeann Petersen | Executive Director |
| Maria Korsnick | Chairwoman and Director |
| Ellen C. Ginsberg | Clerk/Treasurer |
| Jack Edlow | Board Director |
| Mark Peters | Board Director |
| Leeann Petersen | |
| Todd Allen | Board Director |
About
- Legal name
- Foundation for Nuclear Studies
- EIN
- 522236921
- Address
- 1432 Independence Ave Se Apt 101, Washington, DC, 20003-1736
- State
- District of Columbia
- Mission
- The organization provides a forum for the discussion of nuclear technologies with the objective of helping policymakers to make informed decisions regarding nuclear technology issues. (as filed on the Form 990)
- Activity (NTEE)
- U05 Science and technology research
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Science & Technology
- Size band
- 4 (IRS master file code)
- Formed
- 2000
- Principal officer
- Leeann Petersen (as named on the Form 990)
- IRS ruling date
- 1 July 2000
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 7, latest 2024
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsMaria Korsnick
≥8years on the filingsJack Edlow
≥8years on the filingsJohn Hopkins
≥8years on the filingsMark Peters
Latest return
year to 31 December 2024iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2024. US dollars, as filed.- Total assets
- $283k
- Total liabilities
- $10k
- Net assets or fund balances
- $273k
- Contributions and grants received
- $209k
- Program service revenue
- $36k
- Grants and similar paid out
- $10k
- Employees
- 0
- Volunteers
- 9
Filed finances
1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2024 | $244k | $276k | Deficit $32k |
As filed on the IRS Form 990. US dollars.
State registration
1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.Foundation For Nuclear Studies likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: DC Department of Licensing and Consumer Protection (DLCP), corporate registrations (opendata.dc.gov). Licence: CC BY 4.0. Attribution: DC DLCP. Data last fetched 18 October 2026.
- State
- District of Columbia
- Entity type
- Domestic Nonprofit Corporation
- Status
- Active - In Good Standing
- Formed
- 23 February 2000
- Registered agent
- Registered Agents Inc. (city and state not held)