Fiscal year ending 2024. Filed on November 5, 2025.
740 15th Street NW 600
Washington, District of Columbia 20005
Health and Environmental Sciences Institute (EIN: 52-2337019), also known as Hesi, has filed an IRS Form 990 since at least fiscal year 2016. In its fiscal year 2024 IRS Form 990 filing, Health and Environmental Sciences Institute, a 501(c)(3) charitable organization, reported compensation for 8 out of 17 total employees. Among the employees shown here, the average compensation is $203,676. The highest compensated employee at Health and Environmental Sciences Institute is Dr Syril Pettit with fiscal year 2024 compensation of $347,026.
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THE HEALTH AND ENVIRONMENTAL SCIENCES INSTITUTE (HESI) IS A NONPROFIT INSTITUTION WHOSE MISSION IS TO ENGAGE SCIENTISTS FROM ACADEMIA, GOVERNMENT, INDUSTRY, NONPROFIT, AND OTHER RESEARCH INSTITUTIONS TO IDENTIFY AND RESOLVE GLOBAL HEALTH AND ENVIRONMENTAL ISSUES.
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