Hans and Mavis Lopater Foundation
Private foundation · Wilmington, DE · EIN 45-5498376 · reported 2023–2025 · files as The Hans & Mavis Lopater Fdn 182769-000
15grants reported
$200Kmedian award
$200Klower quartile
$200Ksmallest grant
$3.7Mtotal paid
1states reached
3years giving
Gives only in MA. Every grant it reported went to a single state. If you are outside it, this is not a prospect. If you are inside it, that is the strongest signal on this page: a funder with a local mandate and less competition from out of state.
Gives every year. This foundation reported grants in 2023, 2024, 2025. A funder that shows up year after year is worth a letter even if this year is a no.
Where to write
PO Box 70
Wilmington, DE 19899-0070
Address as registered with the IRS. Most foundations this size have no website and no application form, which is not a dead end: a short letter to this address is the whole process, and almost nobody sends one.
This address is a trust department, not an office. 83 other foundations file from the same address, which means a bank or a management company administers the trust. Put the full legal name of the fund and its EIN at the top of the letter, or it lands in a pile with thousands of others and nobody knows which fund you are writing about.
Who they funded
| Recipient and stated purpose | Where | Amount |
|---|---|---|
| Brandeis University NEEDS BASED UNDERGRADUATE | Waltham, MA | $440,000 |
| Brandeis University NEEDS-BASED UNDERGRADUATE SCHOLARSHIPS | Waltham, MA | $400,000 |
| Brandeis University NEEDS-BASED UNDERGRADUATE | Waltham, MA | $400,000 |
| Dana-Farber Cancer Institute MEDICAL RESEARCH | Brookline, MA | $220,000 |
| Anti-Defamation League Foundation SUPPORT FOR | Boston, MA | $220,000 |
| Emerson Health Care Foundation EMERSON FUND, STAFF | Concord, MA | $220,000 |
| American Civil Liberties Foundation SUPPORT SEPARATION OF | Boston, MA | $220,000 |
| American Civil Liberties Union Foundation of Massachusetts SUPPORT ACTIVITES OF THE ACLU AIMED AT GUARANTEENG THE SEPARATION OF RELIGION AND GOVERNMENT IN MASS | Boston, MA | $200,000 |
| Anti-Defamation League Foundation TO THE ANTI-DEFAMATION LEAGUE FOUNDATION, NEW YORK, NEW YORK, TO BENEFIT THE NEW ENGLAND REGIONAL OF | Boston, MA | $200,000 |
| Dana-Farber Cancer Institue MEDICAL RESEARCH | Brookline, MA | $200,000 |
| Emerson Health Care Foundation Inc SUPPORT FOR THE EMERSON FUND FOR ALL ASPECTS OF EMERSON HEALTH'S OPERATIONS, SUPPORT FOR THE ACQUISI | Concord, MA | $200,000 |
| ACLU Foundation of Massachusetts SUPPORT SEPARATION OF | Boston, MA | $200,000 |
| Anti-Defamation League Foundation SUPPORT FOR NO TIME FOR | Boston, MA | $200,000 |
| Dana-Farber Cancer Institute MEDICAL RESEARCH | Brookline, MA | $200,000 |
| Emerson Health Care Foundation Inc EMERSON FUND, STAFF | Concord, MA | $200,000 |
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