Grantmaking public charity · EIN 06-1830842
The John T and Jane a Wiederhold Foundation
Torrington, CT
The John T and Jane a Wiederhold Foundation is a public charity that makes grants based in Torrington, CT. On its Form 990 (Schedule I) for tax year 2025, it reported $1.33M in grants paid across 21 grants, with $33M in total assets. Its largest grants went to Thomas J OConnor Foundation, Northwest CT Land Conservancy and Winchester Land Trust Inc.
How to request funding
Its Form 990 lists the grants it made but not how it chooses recipients. Check The John T and Jane a Wiederhold Foundation's website or contact it to ask whether it considers requests.
How it makes and monitors grants (Schedule I, Part IV)
The program officer is reponsible for monitoring performance of grantees and adherence to grant terms and conditions through post grant evaluations.
Grants as reported on its Form 990 for tax year 2025; the application guidance above is general for this type of funder. Requirements change; confirm with the organization before applying.
Mission
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.
As stated on its Form 990.
Largest grants, tax year 2025
Historical data · not a prediction| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| Thomas J OConnor Foundation | Springfield, MA | Surgical Suite Expansion | $185,000 |
| Northwest CT Land Conservancy | Kent, CT | Surdan Mountain Reserve Acquisition | $150,000 |
| Winchester Land Trust Inc | Winchester Cent, CT | Treiber Field | $120,000 |
| Dakin Humane Society | Springfield, MA | Spay-Neuter Initiative | $100,000 |
| Shelter Animals Count | Atlanta, GA | Data Dashboards | $100,000 |
| Regents of the Uni of Cali | Davis, CA | KSMP CA Vet Fellowship | $94,000 |
| Cornell University College | Ithaca, NY | Student Surgery Teaching Programs | $90,000 |
| University of Florida Found | Gainesville, FL | UF Shelter Medicine | $90,000 |
| Berkshire Humane Society Inc | Pittsfield, MA | Medical program support | $75,000 |
| Animal Rescue Foundation Inc | Terryville, CT | Construction support | $50,000 |
| Cornwall Conservation Trust | West Cornwall, CT | Furnace Brook Forest | $38,300 |
| The Connecticut Agricultural | New Haven, CT | Mapping and Monitoring | $34,600 |
| Housatonic Valley Association | Cornwall Bridge, CT | Catalyzing Conservation Wildlife | $30,000 |
| Western Connecticut State Uni | Danbury, CT | Dependent sex determination | $28,000 |
| Great Mountain Forest | Norfolk, CT | Quantifying Bat Diversity | $27,400 |
| American Society Prevention | New York, NY | Welfare Program | $25,000 |
| CT Humane Society | Newington, CT | Pet Working | $25,000 |
| New England Fed of Humane Soc | Lowell, MA | Conference Scholarship Fund | $20,000 |
| White Memorial Conservation | Litchfield, CT | Little Brown Bat Monitor & Habitat | $19,300 |
| Connecticut Wildlife Rehab | Woodbridge, CT | Vet, Mentorship, & Program Support | $18,000 |
| University of Massachusetts | Amherst, MA | Advancing Freshwater Mussel | $7,000 |
Names and purposes as reported to the IRS.
Where its grants went
Quick answers
Does The John T and Jane a Wiederhold Foundation accept grant applications?
Its Form 990 lists the grants it made but not how it chooses recipients. Check The John T and Jane a Wiederhold Foundation's website or contact it to ask whether it considers requests. Form 990 does not report an application process, so confirm with the organization.
How much does The John T and Jane a Wiederhold Foundation give each year?
For tax year 2025, it reported $1,326,600 in grants paid (21 grants). Giving can change from year to year.
What organizations has The John T and Jane a Wiederhold Foundation funded?
Its largest grants in tax year 2025 went to Thomas J OConnor Foundation (MA), $185K, Northwest CT Land Conservancy (CT), $150K, Winchester Land Trust Inc (CT), $120K, Dakin Humane Society (MA), $100K and Shelter Animals Count (GA), $100K.