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Governance Register
US nonprofit · EIN 136146740 · New York, NYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 136146740) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2025: assets, liabilities, staff, website, telephone, pay.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

American Ditchley Foundation's network

28 people5 organisationsi28 people and 5 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (28). Violet dotted lines (5) 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

28 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 28 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Ms Jami Miscik ChairChairman2018
8 yrs
Dr Jeremy FieldingDirector2021
5 yrs
Dr Kori SchakeDirector2021
5 yrs
Dr Matthew SpenceDirector2023
3 yrs
Dr Michael R AuslinDirector2023
3 yrs
Dr Shannon K O'NeilDirector2023
3 yrs
Dr William J AntholisDirector2023
3 yrs
Johnathan M PruzanDirector2023
3 yrs
Mr Cary A KoplinPresident2018
8 yrs
Mr Casimir A Yost (also filed as Mr Casimir Yost)Director2019
7 yrs
Mr David E SangerDirector2023
3 yrs
Mr David R RiemerDirector2021
5 yrs
Mr David SchwimmerDirector2019
7 yrs
Mr Edward COXDirector2019
7 yrs
Mr George M NewcombeCompany secretary2018
8 yrs
Mr James Arroyo OBEDirector2023
3 yrs
Mr John Bellinger IIIVice-Chairman2018
8 yrs
Mr Peter BassTreasurer2018
8 yrs
Mr Robert G KaiserDirector2019
7 yrs
Mr Robert WillsDirector2023
3 yrs
Mr Theodore BunzelDirector2023
3 yrs
Ms Heather A ConleyDirector2022
4 yrs
Professor A E Dick HowardDirector2019
7 yrs
Professor Joseph NYEDirector2019
7 yrs
The Honorable Anthony GardnerDirector2020
6 yrs
The Honorable Donald F McHenryDirector2019
7 yrs
The Honorable Kenneth JusterDirector2021
5 yrs
The Honorable Stephen BiegunDirector2023
3 yrs
Under 5 years5 to 6 years6 years or moreShow all 28 →

Pay and hours

year to 31 December 2025iFrom 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.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Ms Jami MiscikChairman1$0
Mr John Bellinger IIIVice-Chairman1$0
Mr Cary A KoplinPresident4$0
Mr Peter BassTreasurer1$0
Mr George M NewcombeSecretary1$0
Dr William J AntholisDirector1$0
Mr James Arroyo ObeDirector1$0
Dr Michael R AuslinDirector1$0
The Honorable Stephen BiegunDirector1$0
Mr Theodore BunzelDirector1$0
Ambassador William J BurnsDirector1$0
Ms Heather A ConleyDirector1$0
Mr Edward CoxDirector1$0
Dr Jeremy FieldingDirector1$0
The Honorable Anthony GardnerDirector1$0
Professor A E Dick HowardDirector1$0
The Honorable Kenneth JusterDirector1$0
Mr Robert G Kaiser Thru 1025Director1$0
The Honorable Donald F McHenryDirector1$0
Joseph Nye Deceased 525Director1$0
Dr Shannon K O'neilDirector1$0
Johnathan M PruzanDirector1$0
Mr David R RiemerDirector1$0
Mr David E SangerDirector1$0
Dr Kori SchakeDirector1$0
Mr David SchwimmerDirector1$0
Dr Matthew SpenceDirector1$0
Mr Robert WillsDirector1$0
Mr Casimir A YostDirector1$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
American Ditchley Foundation
EIN
136146740
Address
31 West 34th St 7th FL 7010, New York, NY, 10001-3031
State
New York
Mission
The american ditchley foundation sponsors conferences on sociological, economic, scientific and cultural problems and other topics of global concern. (as filed on the Form 990)
Activity (NTEE)
Q300 International, foreign affairs and national security
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
International, Foreign Affairs & National Security
Size band
4 (IRS master file code)
Formed
1962
Principal officer
Cary A Koplin (as named on the Form 990)
IRS ruling date
1 December 1964
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 filingsMs Jami Miscik
≥8years on the filingsMr Cary A Koplin
≥8years on the filingsMr George M Newcombe
≥8years on the filingsMr John Bellinger III

Latest return

year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.
Total assets
$299k
Total liabilities
$14k
Net assets or fund balances
$285k
Contributions and grants received
$149k
Program service revenue
$0
Employees
0
Volunteers
27

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$243k$205k$38k

As filed on the IRS Form 990. US dollars.