Tremont Street Foundation Inc

Private foundation · Grantmaker Boston, MA EIN: 04-3020460

Tremont Street Foundation Inc is a private foundation based in Boston, Massachusetts. Its 2025 filing reports grants to charitable organizations in areas including recreation, education, health, social services, arts, and community farming.

Key facts about Tremont Street Foundation Inc

In short: Tremont Street Foundation Inc gave $73K across 28 grants in 2025 (avg $3K), mostly in Massachusetts. 64% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

EIN
04-3020460
Latest 990 filing
Form 990-PF, 2025
Annual giving (2025)
$73,070
Grants made (2025)
28
Average grant
$2,610
Median grant
$1,000
New grantees (estimate)
64% first-time grantees (18 of 28, 2025)
Total assets
$558,076
Primary geography
Massachusetts (62% of itemized 2025 grant dollars)
Accepts unsolicited proposals
No
How to apply
The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Full details ↓

Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Financial Overview

From 2025 IRS Form 990-PF · View filing

Total Assets

$558K

-5.4% YoY

Annual Giving

$73K

+27.6% YoY

Grant Count

28

+75.0% YoY

Avg Grant Size

$3K

-27.1% YoY

Under IRS private-foundation payout rules, Tremont Street Foundation Inc reported a distributable amount of $64K for 2025 — the minimum it must pay out in qualifying distributions.

Is Tremont Street Foundation Inc open to new grantees?

64%

first-time grantees, 2025

In 2025, 18 of 28 grantees (64%) were first-time recipients. First grants averaged $2K; repeat grants $5K. How we count

Medians: $1K first-time, $1K repeat.

  • 29% of 2025 grantees were also funded in 2024. Method
  • Giving grew 56% from 2022 to 2025. Method
  • In 2025 it paid out 123% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2025 grants include support for schools, rowing and other recreational organizations, health institutions, arts organizations, and community farms. The grantees describe their own missions in varied terms: Watuppa Rowing Center says it teaches low-income teens to row and builds a strong rowing community; Newhall Fields Community Farm received support, and The Food Project describes its mission as building a sustainable food system with youth and adults from diverse backgrounds. The Boston Symphony Orchestra describes its mission as making music and providing educational and training programs. These are grantees’ stated missions, not the foundation’s.

Grantmaking

In 2025, the foundation reported 28 grants totaling $73,070. Grants ranged from $500 to $25,000, with a median of $1,000. Notable grants included $25,000 to Watuppa Rowing Center, $5,070 to Concrete Foundation, $5,000 each to Belmont Hill School, DUSU Housing, and The Gold Cup Challenge Foundation, and $4,500 to Newhall Fields Community Farm. Other recipients included Dana-Farber ($2,000), McLean Hospital ($2,000), and the Boston Symphony Orchestra ($1,000).

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Geographic Focus

Where this funder awards grants

In 2025, 62% of grant dollars went to recipients in Massachusetts, 18% to Vermont, 7% to Pennsylvania, and 6% to New Hampshire. The filing also reports 7% for an unidentified recipient state.

Grant Distribution by State

9states

Share of all 28 itemized 2025 grant dollars.

Cities

BostonLincolnBelmontBurlingtonCambridgeFall RiverLowellLynnPeabodyBeverly FarmsBrooklineNew YorkWatertownCantonConcordNeedhamRochesterSyracuseWest ConshohockenWest Windsor

Giving Over Time

Total grant dollars and number of grants per year

$0$20K$40K$60K$80K26 grants201922 grants202019 grants202119 grants202221 grants202316 grants202428 grants2025

From 2019 to 2025, annual grant giving ranged from $41K (2019) to $73K (2025). In 2025 it made 28 grants totaling $73K.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Watuppa Rowing Center: $25KWatuppa Rowing Center$25KConcrete Foundation: $5KConcrete Foundation$5KBelmont Hill School: $5KBelmont Hill School$5KDusu Housing: $5KDusu Housing$5KThe Gold Cup Challenge Foundation: $5KThe Gold Cup ChallengeFoundation$5KNewhall Fields Community Farm: $5KNewhall Fields Community Farm$5KUvrf: $3KUvrf$3KD-Hhthe Prouty: $2KD-Hhthe Prouty$2KDana Farber: $2KDana Farber$2KMcClean Hospital: $2KMcClean Hospital$2K

The largest 2025 recipient was Watuppa Rowing Center ($25K). Together the top 10 received $58K.

Grant Size Distribution

103 grants across all recorded years

103<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 103 grants of 103 (100%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Watuppa Rowing Center Fall River, MARecreational$25,000
Concrete Foundation Craftsbury Common, VTRowingrecreatioal$5,070
Belmont Hill School Belmont, MAEducational$5,000
Dusu Housing Housinghousing$5,000
The Gold Cup Challenge Foundation Bryn Mawr, PASOCIAL$5,000
Newhall Fields Community Farm Peabody, MACommunity Farming$4,500
Uvrf Hanover, NHRecreational$2,500
D-Hhthe Prouty Lebanom, NHRecreational and Health$2,000
Dana Farber Boston, MAHEALTH$2,000
McClean Hospital Belmont, MASocial and Healty$2,000

Financial History

Multi-year comparison from IRS filings

Filing year Assets Revenue Expenses Grants Grant count
2025 $558,076 $60,915 $92,462 $73,070 28
2024 $589,623 $106,953 $75,475 $57,250 16
2023 $558,145 $79,333 $82,615 $67,250 21
Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$50K$100K$150K2019202020212022202320242025
Metric202520242023
Total Assets$558,076$589,623$558,145
Revenue$60,915$106,953$79,333
Expenses$92,462$75,475$82,615
Qualifying Distributions$78,901$62,850$72,186
Net Investment Income$49,209$106,980$68,899
Distributable Amount$64,009$56,529$47,608

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2024 (received by the IRS May 6, 2025)
  2. Updated Form 990-PF for fiscal year 2025 (received by the IRS May 12, 2026)
  3. Added Form 990-PF for fiscal year 2019 (received by the IRS June 22, 2020)
  4. Updated Form 990-PF for fiscal year 2020 (received by the IRS May 10, 2021)
  5. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 16, 2022)
  6. Updated Form 990-PF for fiscal year 2022 (received by the IRS May 12, 2023)
  7. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Thomas W. Darling as president and director; Henry P. Phippen as secretary, clerk, and director; William H. Darling as director; and Lia Darling as vice-president, treasurer, and director.

Tremont Street Foundation Inc is led by Thomas W. Darling, President & Director since 2021 (on filings since 2019); none of the 4 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Thomas W. Darling

    President & Director

    President → President & Director, 2021

    On filings since 2019

    2 hrs/week

    No compensation reported

  • Henry P. Phippen

    Secretary, Clerk & Director

    Secretary & Clerk → Secretary, Clerk & Director, 2021

    On filings since 2019

    2 hrs/week

    No compensation reported

  • William H. Darling

    Director

    On filings since 2019

    0.3 hrs/week

    No compensation reported

  • Lia Darling

    Vice President, Treasurer & Director

    New on the 2025 filing

    0.3 hrs/week

    No compensation reported

Former officers (2)
  • Former: Jillian H. Darling (2019–2024) — Vice President, Treasurer & Director
  • Former: Nelson J. Darling Jr. (2019) — Director

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Contact

Mailing address: 21 Custom House St 5Th Fl, Boston, MA 02110
Phone: (617) 227-0600

Frequently asked questions about Tremont Street Foundation Inc

How much does Tremont Street Foundation Inc give each year?

Tremont Street Foundation Inc gave $73K across 28 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $57K across 16 grants.

What is Tremont Street Foundation Inc's typical grant size?

Tremont Street Foundation Inc's median grant in 2025 was $1,000, and its average grant was $2,610, across 28 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from Tremont Street Foundation Inc that year got $2K on average.

Where does Tremont Street Foundation Inc give grants?

Tremont Street Foundation Inc gives mostly in Massachusetts: 62% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Vermont (18%) and Pennsylvania (7%). The most frequent recipient cities were Burlington, VT (8 grants), Boston, MA (4 grants), Belmont, MA (2 grants) and Waterbury, VT (2 grants).

Does Tremont Street Foundation Inc give general operating support?

Not in 2025: none of the 28 grants with a stated purpose on Tremont Street Foundation Inc's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Recreational" (5 grants), "Educational" (4 grants) and "Health" (4 grants).

Who are Tremont Street Foundation Inc's largest grantees?

Tremont Street Foundation Inc's largest 2025 grantees include Watuppa Rowing Center ($25,000), Concrete Foundation ($5,070) and Belmont Hill School ($5,000), according to its 2025 IRS Form 990-PF. Together they received 48% of its itemized 2025 grant dollars.

How large is Tremont Street Foundation Inc?

Tremont Street Foundation Inc reported $558K in total assets on its 2025 IRS Form 990-PF. It paid out $79K in qualifying distributions that year, against a required minimum of $64K (roughly 5% of its investment assets).

What does Tremont Street Foundation Inc fund?

No mission statement for the foundation is provided. Its 2025 grants include support for schools, rowing and other recreational organizations, health institutions, arts organizations, and community farms. See mission & focus areas ↑

How do I apply for a grant from Tremont Street Foundation Inc?

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Tremont Street Foundation Inc's EIN?

Tremont Street Foundation Inc's EIN (Employer Identification Number) is 04-3020460. IRS Form 990 filing data is available on this page for 2019–2025.

Does Tremont Street Foundation Inc accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

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