Connecticut · Public charity
The John T and Jane a Wiederhold Foundation
The John T. and Jane A. wiederhold foundation was created for the purpose of Protecting and improving the welfare of animals of all kinds with a focus on dogs and cats, the Promotion of veterinary programs and the protection of wildlife, including endangered species, flora, and fauna.
- $1.3M
- Granted FY2025(still arriving)
- 21
- Grants FY2025
- 19
- Organizations funded FY2024
- 21%
- First-time grantees FY2024
- Median grant, FY2025
- $38,300
- Largest grant, FY2025
- $185,000
- Organizations funded a year
- 12 to 23
- FY2018 to FY2024
- States reached, FY2025
- 6
- Total assets, FY2025
- $33M
How open it is to new grantees
In FY2024, 21% of the organizations The John T and Jane a Wiederhold Foundation funded were first-time grantees, receiving 9% of its grant dollars.
New vs renewed · share of each year
In FY2024, 91% of grant dollars renewed an existing relationship; $109k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
The numbers by year
| Fiscal year | Organizations funded | To those organizations | First-time grantees |
|---|---|---|---|
| FY2025still arriving | 21 | $1.3M | 24% |
| FY2024 | 19 | $1.3M | 21% |
| FY2023 | 14 | $901k | 50% |
| FY2022 | 20 | $1.0M | 55% |
| FY2021 | 23 | $1.1M | 70% |
| FY2020 | 19 | $1.1M | 53% |
| FY2019 | 14 | $692k | 71% |
| FY2018 | 12 | $657k | n/a |
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.
Where its grants go
Grant dollars by states, across the years we hold.
Which US states its grants reach
Top grantees
Largest recipients by total granted, FY2018 to FY2025, and the share of each one’s budget the grants supplied at peak.
| Grantee | Total granted | Years | Share of their budget |
|---|---|---|---|
| Dakin Pioneer Valley Humane Society Inc | $549,000 | 5 | 6% |
| Cornell University | $497,183 | 7 | 0% |
| Winchester Land Trust Inc | $352,000 | 3 | 49% |
| Northwest Connecticut Land Conservancy Inc | $325,000 | 3 | 1% |
| Little Guild of St Francis | $304,000 | 5 | 28% |
| Shelter Animals Count | $300,000 | 3 | 25% |
| Town of Branford | $285,000 | 2 | n/a |
| Massachusetts Society for the Prevention of Cruelty to Animals | $275,000 | 3 | 0% |
| National Marine Life Center Inc | $272,000 | 3 | 15% |
| New Hartford Land Trust Inc | $250,000 | 3 | 91% |
Show all 75 grantees
Where it is load-bearing
The John T and Jane a Wiederhold Foundation supplied at least a quarter of the budget for 9 of its grantees at some point. The chart plots its 65 largest grantees; load-bearing ones sit top left.
Tap a dot to name the grantee.
How this is measured
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: The American Society for the Prevention of Cruelty to Animals · Berkshire Taconic Community Foundation Inc · The Nature Conservancy · Northwest Connecticut Community Foundation Inc · The Duffield Family Foundation Dba Maddie's Fund · Aetna Foundation Inc · The Connecticut Community Foundation · Petsmart Charities Inc · Ibm International Foundation · Ge Aerospace Foundation · Humane World for Animals Inc · Connecticut Land Conservation Council Inc
How this is measured
Compare The John T and Jane a Wiederhold Foundation with peer funders
Warm introductions · Powered by PlinthPlus
How do I get to The John T and Jane a Wiederhold Foundation?
Find your warmest path to The John T and Jane a Wiederhold Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.
About The John T and Jane a Wiederhold Foundation
- How much does The John T and Jane a Wiederhold Foundation give?
- The John T and Jane a Wiederhold Foundation reported 21 grants totaling $1,326,600 in its FY2025 IRS filing. It funded between 12 and 23 organizations a year over FY2018 to FY2024.
- What does The John T and Jane a Wiederhold Foundation fund?
- By grant dollars over FY2018 to FY2025, its largest causes are Animals (54%), Environment (32%), Education (7%).
- Who are The John T and Jane a Wiederhold Foundation's largest grantees?
- By total granted over FY2018 to FY2025: Dakin Pioneer Valley Humane Society Inc ($549k), Cornell University ($497k), Winchester Land Trust Inc ($352k).
- Does The John T and Jane a Wiederhold Foundation fund new organizations?
- In FY2024, 21% of the organizations it funded were first-time grantees.
- Which funders back the same organizations as The John T and Jane a Wiederhold Foundation?
- Its strongest co-funders, measured against what their size predicts, include The American Society for the Prevention of Cruelty to Animals, Berkshire Taconic Community Foundation Inc, The Nature Conservancy.
- Where is The John T and Jane a Wiederhold Foundation based?
- The John T and Jane a Wiederhold Foundation is based in CT.
Play a game based on John T and Jane a Wiederhold’s filings →