Tax-exempt organization ยท Files a Form 5500
INTERNATIONAL INSTITUTE FOR SUSTAINABLE DEVELOPMENT
Also filed as IISD
WINNIPEG MANITOBA R3B0T4, CANADA, 00000-0000
EIN
98-0142199
Tax-exempt status
501(c)(3) charitable, religious, educational
IRS · 2026-09
Deductibility
Deductible by treaty (foreign organizations)
IRS · 2026-09
Foundation classification
Publicly supported charity (170(b)(1)(A)(vi))
IRS · 2026-09
IRS ruling date
1994-12
IRS · 2026-09
NTEE code
Q99E
IRS · 2026-09
Latest tax period on file
2025-03
IRS · 2026-09
Revenue (latest 990)
$46,616,924
IRS · 2026-09
Assets (latest 990)
$106,490,755
IRS · 2026-09
Tax-exempt status
501(c)(3) charitable, religious, educational
IRS · 2026-09
Deductibility
Deductible by treaty (foreign organizations)
IRS · 2026-09
Foundation classification
Publicly supported charity (170(b)(1)(A)(vi))
IRS · 2026-09
IRS ruling date
1994-12
IRS · 2026-09
NTEE code
Q99E
IRS · 2026-09
Latest tax period on file
2025-03
IRS · 2026-09