Fiscal year ending 2025. Filed on December 23, 2025.
111 Lombard Avenue Suite 325
Suite 325
Winnipeg, Canada
International Institute for Sustainable Development (EIN: 98-0142199), also known as Iisd, has filed an IRS Form 990 since fiscal year 2021. In its fiscal year 2025 IRS Form 990 filing, International Institute for Sustainable Development, a 501(c)(3) charitable organization, reported compensation for 10 employees. Among the employees shown here, the average compensation is $192,453. The highest compensated employee at International Institute for Sustainable Development is Nathalie Bernasconi with fiscal year 2025 compensation of $288,357.
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To accelerate solutions for a stable climate, sustainable resources, and fair economies.
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