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Foundation

Wyss Foundation

“To protect the most vulnerable natural habitats on Earth.”

Home groundWashington, DC
Founded1998
KindFoundation 501(c)(3)

Every way to help ↓

The work

What they do

Swiss philanthropic foundation that has invested billions in land conservation.

The filings

10 years of filings

10 years of filings

Total revenue by fiscal year, as filed. Point at the line for any year.

$25M$50M$75M$100M$125M$150M$175M$200M$225M$250M$275M$300M$325M$350M$375M$400M$425M$450M$475M$500M$525M$550M$575M$600M$625M$650M$675M$700M$725M$750M$775M$800M$825M$850M$875M$900M$925M$950M$975M$1000M$1025M$1050M$1075M$1100M$1125M$1150M$1175M$1200M$1225M$1250M$1275M$1300M$43.4M FY2320112023
Total revenue by fiscal year
YearRevenue
2011$191,837,933
2012$1,257,670,048
2013$213,267,457
2014$152,221,366
2015$57,150,635
2019$85,071,380
2020$34,466,169
2021$87,934,076
2022$55,225,697
2023$43,385,767

From $191.8M in 2011 to $43.4M in FY23, across 10 public filings. The 2012 peak of $1.3B reads like one-time gifts, so trust the line, not the peak.

Stand with Wyss Foundation

The mission is theirs. The backing is yours.

Sources and methodFinancials, headcounts, and program text: IRS Form 990, FY2023 and 9 prior filings via ProPublica Nonprofit Explorer, EIN 25-1823874. Org-reported figures are always labeled. Data verified as of 2026-09-23. Nothing on this page is pay-to-play.