International Society of Olympic Historians
Donations deductibleRevenue
$121k
year to 31 December 2025
Expenses
$43k
year to 31 December 2025
Total assets
$164k
year to 31 December 2025
Net assets
$164k
assets less liabilities
Directors and trustees
11
4.8 years on average
Left since last filing
0
no seats appear to have opened
Activity
N197
Recreation and sports
Filings on record
7
latest 2025
International Society of Olympic Historians' network
11 peoplei11 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (11). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.The board
11 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.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.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Christian Wacker | President | 2020 | 6 yrs |
| David Wallechinsky | Board Member | 2018 | 8 yrs |
| Elizabeth A Hanley | Board Member | 2025 | 1 yr |
| Hector Arguelles Menendez | Treasurer | 2019 | 7 yrs |
| Marcus Osterwalder | Board Member | 2018 | 8 yrs |
| Maria Bulatova | Board Member | 2023 | 3 yrs |
| Nicholas Wolaver | Board Member | 2025 | 1 yr |
| Phillip Barker | Board Member | 2020 | 6 yrs |
| Richard Pound | Board Member | 2020 | 6 yrs |
| Tolga Sinoforoglu | Board Member | 2025 | 1 yr |
| Tracey Savell Reavis | Board Member | 2025 | 1 yr |
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.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Christian Wacker | President | 0 | $0 | ||
| Konstantinos Georgiadis | Vice Preside | 0 | $0 | ||
| Hector Arguelles Menendez | Treasurer | 0 | $0 | ||
| Marcus Osterwalder | Board Member | 0 | $0 | ||
| Tolga Sinoforoglu | Board Member | 0 | $0 | ||
| Maria Bulatova | Board Member | 0 | $0 | ||
| Nicholas Wolaver | Board Member | 0 | $0 | ||
| Phillip Barker | Board Member | 0 | $0 | ||
| Richard Pound | Board Member | 0 | $0 | ||
| David Wallechinsky | Board Member | 0 | $0 | ||
| Elizabeth A Hanley | Board Member | 0 | $0 | ||
| Tracey Savell Reavis | Board Member | 0 | $0 |
No pay was reported for anyone in Part VII on this return.
About
- Legal name
- International Society of Olympic Historians
- EIN
- 562259409
- Address
- 85 8th Ave Apt 2w, New York City, NY, 10011-5123
- State
- New York
- Activity (NTEE)
- N197 Recreation and sports
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Recreation & Sports
- Size band
- 4 (IRS master file code)
- IRS ruling date
- 1 June 2003
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 7, latest 2025
- IRS Publication 78
- PC (contributions deductible)
Most connected
Longest observed on the filings
≥8years on the filingsDavid Wallechinsky
≥8years on the filingsMarcus Osterwalder
≥7years on the filingsHector Arguelles Menendez
≥6years on the filingsChristian Wacker
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
- $164k
- Net assets or fund balances
- $164k