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Contractor / vendor

Tetra Tech Inc

12 nonprofits report paying Tetra Tech Inc for contracted services, totaling $13 million across their most recent filings.

The largest relationships are with Research Triangle Institute, Central Coast Water Quality Preservation Inc, and Charlotte Harbor Water Association Inc.

Organizations
12
Total paid
$12.8M

Organizations that paid this firm

Research Triangle Institute FY2020 $6.2M
Central Coast Water Quality Preservation Inc FY2022 $1.7M
Charlotte Harbor Water Association Inc FY2020 $1.5M
Henry County Land Reutilization Corporation FY2025 $814K
Allegheny Land Tr FY2019 $634K
Memphis River Parks Partnership Inc FY2023 $474K
Ecosystem Services Market Consortium FY2022 $420K
Soil Health Institute FY2020 $365K
Coastal States Stewardship Foundation FY2024 $273K
Northern Southeast Regional Aquaculture Association Inc FY2024 $161K
Esplanade Association Inc FY2023 $145K
New England Interstate Water Pollution Control Commission FY2024 $105K
Public data from IRS Form 990 e-file & Business Master File. A 990 shows how an organization is run and funded — not its real-world outcomes. Figures are presented without evaluation; we do not rate, score, or rank organizations. · philanthropy.org