Nonprofit · EIN 52-2335215
INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S
Also known as IISS - AMERICAS
Tax-exempt · WASHINGTON, DC 20037
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| September 30, 2025 | 990 | $1,433,483 | $1,491,187 | -$57,704 | $306,419 | $106,130 | $200,289 |
| September 30, 2024 | 990 | $916,364 | $1,013,551 | -$97,187 | $326,965 | $68,972 | $257,993 |
| September 30, 2023 | 990 | $939,553 | $923,062 | $16,491 | $417,142 | $61,962 | $355,180 |
Financial details: 990 for the year ended September 30, 2025
Revenue
- Contributions, gifts and grants
- $1,431,683
- Program service revenue
- $0
- Investment income
- $0
- Other revenue
- $1,800
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $207,696
- Other salaries and wages
- $489,168
- Salaries, compensation and benefits (total)
- $841,458
- Professional fundraising fees
- $0
- Accounting fees
- $11,016
- Occupancy
- $308,552
- Travel
- $143,959
- Depreciation
- $22,683
- Program services (functional)
- $1,299,835
- Management and general (functional)
- $144,426
- Fundraising (functional)
- $46,926
Balance sheet and other
- Total assets, start of year
- $326,965
- Total assets, end of year
- $306,419
- Total liabilities, end of year
- $106,130
- Net assets, end of year
- $200,289
- Land, buildings and equipment
- $12,009
- Net assets without donor restrictions
- $200,289
- Gross receipts
- $1,433,483
- Employees
- 15
- Volunteers
- 2
- Year formed
- 2001
- State of legal domicile
- DC
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended September 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| BASTIAN GIEGERICH | CHAIRMAN Trustee or director, Officer | 1 | $0 | $457,240 | $43,673 |
| SALLY TAYLOR | DIRECTOR Trustee or director | 1 | $0 | $146,394 | $15,753 |
| LEIGH MORRIS SLOANE | VICE-PRESIDENT Trustee or director, Officer | 40 | $149,448 | $0 | $12,152 |
| TOM BECKETT | CORRESPONDING ED AND PRESIDENT Trustee or director, Officer | 0 | $0 | $143,704 | $6,760 |
| JONATHAN STEVENSON | SENIOR FELLOW Highest-paid employee | 40 | $126,600 | $0 | $0 |
| CHRIS JONES | TREASURER Trustee or director, Officer | 1 | $0 | $0 | $0 |
| BILL EMMOTT | DIRECTOR Trustee or director | 1 | $0 | $0 | $0 |
990 for the year ended September 30, 2024: 7 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| JOHN CHIPMAN | CHAIRMAN UNTIL 11/23 Trustee or director, Officer | 1 | $0 | $602,327 | $63,260 |
| BASTIAN GIEGERICH | CHAIRMAN AS OF 11/23 Trustee or director, Officer | 1 | $0 | $302,125 | $16,617 |
| LEIGH MORRIS SLOANE | MANAGING DIRECTOR Highest-paid employee | 40 | $144,249 | $0 | $28,174 |
| SALLY TAYLOR | DIRECTOR Trustee or director | 1 | $0 | $135,433 | $13,977 |
| JONATHAN STEVENSON | SENIOR FELLOW Highest-paid employee | 40 | $120,000 | $0 | $7,783 |
| CHRIS JONES | TREASURER Trustee or director, Officer | 1 | $0 | $0 | $0 |
| BILL EMMOTT | DIRECTOR Trustee or director | 1 | $0 | $0 | $0 |
990 for the year ended September 30, 2023: 7 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| JOHN CHIPMAN | CHAIRMAN Trustee or director, Officer | 1 | $0 | $827,807 | $125,236 |
| ERNEST J HEROLD | EXECUTIVE DIRECTOR-UNTIL 01/23 Officer | 40 | $253,800 | $0 | $10,200 |
| SALLY TAYLOR | DIRECTOR Trustee or director | 1 | $0 | $142,950 | $11,944 |
| LEIGH MORRIS SLOANE | MANAGING DIRECTOR Highest-paid employee | 40 | $131,480 | $0 | $5,600 |
| JONATHAN STEVENSON | SENIOR FELLOW Highest-paid employee | 40 | $115,900 | $0 | $4,636 |
| CHRIS JONES | TREASURER Trustee or director, Officer | 1 | $0 | $0 | $0 |
| BILL EMMOTT | DIRECTOR Trustee or director | 1 | $0 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 2121 K ST NW STE 600, WASHINGTON, DC 20037-1800
- In care of
- % ADAM WARD
- Principal officer (990 for 2024)
- LEIGH MORRIS SLOANE, 2121 K STREET NW 600, WASHINGTON, DC 20037
- Signed the 990
- LEIGH MORRIS SLOANE, VICE-PRESIDENT
- Phone
- (202) 659-1490
- Website
- WWW.IISS.ORG
- Return prepared by
- CBIZ ADVISORS LLC
Mission
TO PROVIDE ACCURATE, OBJECTIVE INFORMATION AND ANALYSIS ON INTERNATIONAL STRATEGIC ISSUES FOR LEGISLATORS, DIPLOMATS, FOREIGN AFFAIRS ANALYSTS, INTERNATIONAL BUSINESS LEADERS, ECONOMISTS, THE MILITARY, DEFENSE COMMENTATORS, JOURNALISTS, ACADEMICS AND THE PUBLIC. THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES - U.S. (THE INSTITUTE) IS INDEPENDENT AND OWES NO ALLEGIANCE TO ANY GOVERNMENT, OR TO ANY POLITICAL OR OTHER ORGANIZATION.
Program accomplishments
- ROUNDTABLES AND PRESS EVENTS: PUBLIC EVENTS, DISCUSSION ROUNDTABLES, GOVERNMENT AND CORPORATE BRIEFINGS ON A VARIETY OF INTERNATIONAL SECURITY ISSUES INCLUDING REGIONAL POLITICAL AND SECURITY ISSUES IN ASIA, EUROPE AND THE MIDDLE EAST, CYBERSECURITY, AND MILITARY AND DEFENSE POLICY.Expenses $1,299,835
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | September 30, 2026 | February 16, 2027 | Not due yet |
| 2024 | September 30, 2025 | February 17, 2026 | 990 on file |
| 2023 | September 30, 2024 | February 18, 2025 | 990 on file |
IRS record
- EIN
- 52-2335215
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Supporting organization (509(a)(3))
- Donations deductible (Pub 78)
- Supporting organization of unknown type
- Exempt since
- 2002
- Accounting year ends
- September
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- International, foreign affairs and national security (Q40)
- Assets (IRS master file)
- $306,419
- Income (IRS master file)
- $1,433,483
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | September 2025 | $1,433,483 | $1,491,187 | $306,419 | XML |
| 990 | September 2024 | $916,364 | $1,013,551 | $326,965 | IRS |
| 990 | September 2023 | $939,553 | $923,062 | $417,142 | XML |
| 990 | September 2022 | $1,086,005 | $1,000,337 | $388,448 | IRS |
| 990 | September 2021 | – | – | – | IRS |
| 990 | September 2020 | – | – | – | IRS |
| 990 | September 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 52-2335215).
Questions about INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S
- What is the EIN of INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S?
- The employer identification number (EIN) of INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S is 52-2335215.
- Is INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2002.
- Are donations to INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S tax-deductible?
- Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
- Which annual return does INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S due?
- The return for tax year 2025 (the year ending September 30, 2026) is due February 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended September 2025.
- Who is the principal officer of INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S?
- The 990 for the year ended September 30, 2025 names LEIGH MORRIS SLOANE.
- Who are the officers and directors of INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S?
- The 990 for the year ended September 30, 2025 lists 7 people; 2 received compensation from the organization.
- How much revenue does INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES-U S have?
- On its 990 for the year ended September 30, 2025 it reported revenue of $1,433,483, expenses of $1,491,187 and total assets of $306,419 at year end.
Other nonprofits in WASHINGTON
- GAVI ALLIANCE EIN 98-0593375 · last filed 990 for 2024
- WORLD CENTRAL KITCHEN INCORPORATED EIN 27-3521132 · last filed 990 for 2024
- GLOBAL IMPACT EIN 52-1273585 · last filed 990 for 2025
- WORLD RESOURCES INSTITUTE EIN 52-1257057 · last filed 990 for 2025
- DKT INTERNATIONAL INC EIN 58-1593137 · last filed 990 for 2025
- AMERICAN NEAR EAST REFUGEE AID INC EIN 52-0882226 · last filed 990 for 2025
- ACDI VOCA EIN 52-0811461 · last filed 990 for 2024
- PROJECT HOPE - THE PEOPLE-TO-PEOPLE HEALTH FOUNDATION INC EIN 53-0242962 · last filed 990 for 2025
All nonprofits in WASHINGTON · District of Columbia · International, foreign affairs and national security