System Dynamics Society Inc
Donations deductibleSystem Dynamics Society Inc's network
24 people1 organisationi24 people and 1 organisation on this map.The large node is the subject of this page. Solid lines are what the register itself records (24). Violet dotted lines (1) 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
24 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 24 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 |
|---|---|---|---|
| Allyson Beall King | President | 2023 | 3 yrs |
| Asmeret Bier Naugle | President-Elect | 2018 | 8 yrs |
| Camilo Olaya | Member | 2023 | 3 yrs |
| Coty Gonzalez | Member | 2024 | 2 yrs |
| Diana Fisher | VP Pre-College Education | 2018 | 8 yrs |
| Eliot Rich | VP Finance | 2018 | 8 yrs |
| Hazhir Rahmandad | Member | 2024 | 2 yrs |
| Hyunjung Kim | Member | 2021 | 5 yrs |
| Inge Bleijenbergh | VP Membership | 2024 | 2 yrs |
| J Bradley Morrison | Past President | 2018 | 8 yrs |
| Jenson GOH | Member | 2022 | 4 yrs |
| Jeroen Struben | Member | 2023 | 3 yrs |
| John Pastor Ansah | VP Meetings | 2018 | 8 yrs |
| Juan Pablo Torres | Member | 2022 | 4 yrs |
| Kawika Pierson | Member | 2022 | 4 yrs |
| Lees Stuntz | Company secretary | 2018 | 8 yrs |
| Martin Kunc | Member | 2023 | 3 yrs |
| Peter Hovmand | VP Chapters & Sigs | 2023 | 3 yrs |
| Raafat Zaini | Member | 2018 | 8 yrs |
| Robert L Eberlein (also filed as Robert Eberlein) | VP Publications | 2018 | 8 yrs |
| Saras Chung | VP Professional Practice | 2022 | 4 yrs |
| Thomas Wittig | VP Marketing | 2020 | 6 yrs |
| Timothy Clancy | Member | 2022 | 4 yrs |
| Willem Auping | Member | 2024 | 2 yrs |
Officers and senior leadership
2 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 |
|---|---|---|
| Mark R Nelson | Executive Director | 2019 |
| Rebecca Niles | Executive Director | since 2019 |
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 |
|---|---|---|---|---|---|
| Rebecca Niles | Executive Director | 40 | $111k | $8k | |
| Camilo Olaya | Member | 3 | $0 | ||
| Hazhir Rahmandad | Member | 3 | $0 | ||
| Raafat Zaini | Member | 3 | $0 | ||
| Timothy Clancy | Member | 3 | $0 | ||
| Coty Gonzalez | Member | 3 | $0 | ||
| Juan Pablo Torres | Member | 3 | $0 | ||
| Kawika Pierson | Member | 3 | $0 | ||
| Willem Auping | Member | 3 | $0 | ||
| Martin Kunc | Member | 3 | $0 | ||
| Jeroen Struben | Member | 3 | $0 | ||
| Jenson Goh | Member | 3 | $0 | ||
| Hyunjung Kim | Member | 3 | $0 | ||
| Allyson Beall King | President | 5 | $0 | ||
| Asmeret Bier Naugle | President-Elect | 5 | $0 | ||
| J Bradley Morrison | Past President | 5 | $0 | ||
| Lees Stuntz | Secretary | 5 | $0 | ||
| Peter Hovmand | VP Chapters & Sigs | 5 | $0 | ||
| Eliot Rich | VP Finance | 5 | $0 | ||
| Thomas Wittig | VP Marketing | 5 | $0 | ||
| John Pastor Ansah | VP Meetings | 5 | $0 | ||
| Inge Bleijenbergh | VP Membership | 5 | $0 | ||
| Diana Fisher | VP Pre-College Education | 5 | $0 | ||
| Saras Chung | VP Professional Practice | 5 | $0 | ||
| Robert Eberlein | VP Publications | 5 | $0 |
About
- Legal name
- System Dynamics Society Inc
- EIN
- 222738769
- Address
- Po Box 542, Littleton, MA, 01460-0542
- State
- Massachusetts
- Mission
- System dynamics society, inc. Is devoted to encouraging the development and use of system dynamics and systems thinking around the world. System dynamics is a computer-aided approach to policy analysis and design. (as filed on the Form 990)
- Activity (NTEE)
- B20B Education
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Education
- Size band
- 6 (IRS master file code)
- Formed
- 1985
- Principal officer
- Rebecca D Niles (as named on the Form 990)
- IRS ruling date
- 1 December 1986
- 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 filingsAsmeret Bier Naugle
≥8years on the filingsDiana Fisher
≥8years on the filingsEliot Rich
≥8years on the filingsJ Bradley Morrison
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
- $1.8m
- Total liabilities
- $93k
- Net assets or fund balances
- $1.7m
- Contributions and grants received
- $138k
- Program service revenue
- $548k
- Grants and similar paid out
- $9k
- Employees
- 2
- Volunteers
- 625
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 | $733k | $631k | $101k |
As filed on the IRS Form 990. US dollars.