The Simsmaes Foundation Inc
Preselected recipients only
The Simsmaes Foundation Inc is a private foundation in Boston, Massachusetts. In tax year 2025 it gave $1.7 million in 35 grants; the typical grant was $2,000 and the largest $1.0 million. It only gives to organizations it selects itself and does not accept unsolicited applications.
From its IRS Form 990-PF for tax year 2025.
- Grants paid, 2025$1.7 million
- Number of grants35
- Typical grant$2,000
- Largest grant$1.0 million
- Assets$34.1 million
- New grantees11%
Giving in 2025 was up from $1.4 million the year before.
11% of its 2025 grantees had not received a grant from it the year before, so most of its money goes to organizations it already funds.
Giving by year
| Tax year | Grants paid | Number of grants | Assets |
|---|---|---|---|
| 2023 | $1.4 million | 41 | $33.1 million |
| 2024 | $1.4 million | 40 | $33.7 million |
| 2025 | $1.7 million | 35 | $34.1 million |
How to apply
The Simsmaes Foundation Inc says in its IRS filing that it only makes contributions to preselected organizations, so unsolicited applications are unlikely to be considered. Organizations it funds are usually invited.
What The Simsmaes Foundation Inc funds
Where it gives
Its grants went to recipients in 5 states, the most to Massachusetts.
| State | Grants | Amount |
|---|---|---|
| Massachusetts | 23 | $1.1 million |
| California | 2 | $557,000 |
| Maine | 5 | $9,000 |
| New York | 3 | $5,000 |
| District of Columbia | 2 | $4,000 |
Grants paid in 2025
| Recipient | Purpose | Amount |
|---|---|---|
| Massachusetts Institute of Technology | General purposes | $1.0 million |
| Donor Advised Charitable Giving Inc (Formerly Schwab Charitable Fund) | General purposes | $555,000 |
| Trustees of Tufts College (DBA Tufts University) | General purposes | $10,000 |
| 350 Org | General purposes | $3,000 |
| Dana Farber Cancer Institute | General purposes | $3,000 |
| American Red Cross | General purposes | $2,000 |
| College of the Atlantic | General purposes | $2,000 |
| Medecins Sans Frontieres USA Inc (DBA Doctors Without Borders USA) | General purposes | $2,000 |
| Institute of Contemporary Artboston | General purposes | $2,000 |
| La Colaborativa | General purposes | $2,000 |
| Maine Coast Heritage Trust | General purposes | $2,000 |
| National Resources Defense Council Inc | General purposes | $2,000 |
| Pathfinder International | General purposes | $2,000 |
| Planned Parenthood League of Massachusetts | General purposes | $2,000 |
| Rosies Place | General purposes | $2,000 |
| Sail Power and Steam Museum | General purposes | $2,000 |
| Sierra Club Foundation | General purposes | $2,000 |
| Station Maine | General purposes | $2,000 |
| The Nature Conservancy | General purposes | $2,000 |
| Trustees of Boston University (Wbur) | General purposes | $2,000 |
| Trustees of Reservations | General purposes | $2,000 |
| World Resources Institute | General purposes | $2,000 |
| American Civil Liberties Union Foundation Inc | General purposes | $1,000 |
| Animal Rescue League | General purposes | $1,000 |
| Berklee College of Music | General purposes | $1,000 |
| Community Art Center | General purposes | $1,000 |
| Food for Free Committee Inc | General purposes | $1,000 |
| Health Story Collaborative | General purposes | $1,000 |
| Maine Island Trail Association | General purposes | $1,000 |
| Massachusetts Audubon Society Inc | General purposes | $1,000 |
| Partners in Health | General purposes | $1,000 |
| Pine Street Inn | General purposes | $1,000 |
| Shady Hill School | General purposes | $1,000 |
| Somervillecambridge Elder Services Inc | General purposes | $1,000 |
| Union of Concerned Scientists | General purposes | $1,000 |
Officers and trustees
- Karl Sims
- Patricia Maes
- M Molly Kim
Questions people ask
Does The Simsmaes Foundation Inc accept grant applications?
No. Its IRS filing says it only makes contributions to preselected organizations.
How much does The Simsmaes Foundation Inc give?
$1.7 million in tax year 2025, across 35 grants, with a typical grant of $2,000.
Who runs The Simsmaes Foundation Inc?
Its 2025 filing lists Karl Sims (President/Clerk/Director), Patricia Maes (Treasurer/Director) and M Molly Kim (Assistant Clerk).
What does The Simsmaes Foundation Inc fund?
Based on its grants, mainly science and research, education and arts and culture.