THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES
Registration and award facts
SAM.gov registration as of
- Net obligations since FY2018
- $612.92K
- $612,925under this UEI
- FY2026 obligations
- -$3K†
- -$3,000Provisional
- Awards and orders
- 9
- with positive net obligations2 IDV vehicles held
- Latest action
- Jul 30, 2026
- SAM.gov registration
- Active
- Registration expiration date Aug 17, 2027
Registration
- Entity structure
- International Organization
- Business start date
- Nov 20, 1958 (67 years)
- Location
- London
- Purpose of registration
- All Awards
- Website
- iiss.org
† FY2026 obligations (provisional; DoD awards signed after Jul 26, 2026 are not yet public).
Contract actions that the Department of Defense both funds and awards are withheld at the source for 90 days, so DoD awards signed after Jul 26, 2026 are not yet public.
Source: SAM.gov entity registration and FPDS contract actions recorded under UEI NC4DLCJHEHS4. GovChime does not check exclusions.
Performance
Net obligations recorded under this UEI since FY2018. Top lists show the largest five by share of this vendor's net obligations; the shares do not sum to 100%.
Net obligations by fiscal year of action
- FY2026: -$3,000 (de-obligation) (provisional)
- FY2025: $64,486
- FY2024: $11,486
- FY2023: $196,486
- FY2022: $62,770
- FY2021: $49,790
- FY2020: $46,940
- FY2019: $65,462
Show all 9 yearsEarlier years (FY2018–FY2018)
- FY2018: $118,504
Total across 9 fiscal years: $612,925
Net de-obligation in that fiscal year (obligations withdrawn).
Top awarding agencies
- Department of Defense$355,355, 58.0%
- Department of State$257,570, 42.0%
Top awarding sub-agencies
- Department of State$257,570, 42.0%
- Department of the Air Force$209,410, 34.2%
- Department of the Army$100,000, 16.3%
- Washington Headquarters Services$34,458, 5.6%
- Department of the Navy$11,486, 1.9%
Top NAICS by obligations
- 541519Other computer related services$101,074, 16.5%
- 928120International affairs$100,000, 16.3%
- 511210Software publishers$72,483, 11.8%
Top product and service codes by obligations
- B510Special studies/analysis- environmental assessments$185,000, 30.2%
- 7630Newspapers and periodicals$104,368, 17.0%
- DA01IT and telecom - business application/application development support services (LABOR)$101,074, 16.5%
- 7610Books and pamphlets$100,000, 16.3%
- 7H20IT and telecom - platform products: database, mainframe, middleware (hw, perpetual license software)$50,000, 8.2%
Capabilities
NAICS codes
- 928120International Affairs(primary)
- 928110National Security
- 513210Software PublishersSmall
- 519290Web Search Portals and All Other Information ServicesSmall
- 813319Other Social Advocacy Organizations
Small: small business for that NAICS, self-certified in SAM.gov registration.
SBA certifications
No certification in the SBA profile data.
Contracts
Latest awards and orders
- 19AQMM20P0735Purchase orderDepartment of StateLatest action
- 47QTCA22D000HFederal supply schedule (FSS)VehicleGeneral Services AdministrationFederal Acquisition ServiceLatest action
- 03310325D0013Indefinite delivery contract (IDC)VehicleLibrary of CongressLatest action
- FA330025C0046Definitive contractDepartment of DefenseDepartment of the Air ForceLatest action
- HQ003423F0698Delivery orderunder a federal supply schedule (FSS)Department of DefenseWashington Headquarters ServicesLatest action
- 19AQMM23P1168Purchase orderDepartment of StateLatest action
- FA521521P0028Purchase orderDepartment of DefenseDepartment of the Air ForceLatest action
- N4248522F0009Delivery orderunder a federal supply schedule (FSS)Department of DefenseDepartment of the NavyLatest action
- FA330018P0108Purchase orderDepartment of DefenseDepartment of the Air ForceLatest action
- 1901SL19P2081Purchase orderDepartment of StateLatest action
Contact Info
As of . Source: SAM.gov Points of Contact.
SAM.gov registration for THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES lists a physical address and a separate mailing address, along with 4 verified points of contact. Past Performance contacts are the recommended outreach channel for due-diligence references; Government Business contacts handle procurement-facing correspondence.
Source: SAM.gov entity registration. Contacts displaying numeric or placeholder names have been filtered (defense-in-depth).
Physical Address
ARUNDEL HOUSE 6 TEMPLE PLACE
LONDON, WC2R
GBR
Mailing Address
ARUNDEL HOUSE 6 TEMPLE PLACE
LONDON, WC2R
GBR
Government Business Contact
Mattias Carosella
2121 K Street NW Suite 600
WASHINGTON, DC, 20037
USA
Electronic Business Contact
Leigh M Sloane
Managing Director, US
INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES
2121 K Street NW Suite 600
Washington, DC, 20037
USA
Government Business Alternate Contact
Leigh M Sloane
Managing Director, US
INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES
2121 K Street NW Suite 600
Washington, DC, 20037
USA
Electronic Business Alternate Contact
Mattias Carosella
2121 K Street NW Suite 600
WASHINGTON, DC, 20037
USA
Additional Details
As of . Source: SAM.gov Entity Registration.
THE INTERNATIONAL INSTITUTE FOR STRATEGIC STUDIES has no active federal suspension or debarment on record in SAM.gov. Current SAM.gov registration expires August 17, 2027.
Source: SAM.gov entity registration (FAR responses, registration status). Always verify active exclusions against the authoritative record on SAM.gov before contract award.
Compliance & Risk Assessment
Source: SAM.gov FAR responsesSuspension/Debarment Status
SAM.gov registration reports no active exclusion
Public Display
Entity information is publicly displayed
Disaster Relief Registry
Not registered for disaster relief
EDI
Not declared in SAM.gov
Business Structure
Source: SAM.govRegistration Details
Source: SAM.govInitial Registration
Last Update
Registration Activation
Fiscal Year End
Country of Incorporation