The Massachusetts State Capitol

Form 990-PFTax year 2024EIN 20-3982689

TBL Charitable Foundation

A private foundation in Newtonville, MA. Its return for tax year 2024 lists 12 grants and $2.5 million paid in grants.

Tax year 2024 (period ending Dec 31, 2024), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Accepts applications

The return gives an application contact and rules, as below.

Contact
F Thomson Leighton
15 Charlesden Park
Newtonville, MA 02460
(617) 765-2100
Form and materials
None
Deadlines
None
Restrictions
None

Assets and giving by year

6 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2024

    $2,459,800

    Grants listed
    12
    Assets, end of year
    $31,662,087
  • Tax year 2023

    $911,000

    Grants listed
    12
    Assets, end of year
    $32,731,556
  • Tax year 2022

    $1,136,500

    Grants listed
    11
    Assets, end of year
    $19,739,055
  • Tax year 2021

    $1,227,500

    Grants listed
    15
    Assets, end of year
    $20,732,030
  • Tax year 2020

    $667,000

    Grants listed
    12
    Assets, end of year
    $15,949,618
  • Tax year 2019

    $626,300

    Grants listed
    16
    Assets, end of year
    $16,139,083

Grants paid in 2024

12 grants, largest first

As listed on the return.

  1. Brandeis UniversityWaltham, MA

    General purpose

    $1,500,000
  2. Society for Science and the PublicWashington, DC

    To promote the understanding and appreciation of science and the vital role it plays in human advancement: to inform, educate, and inspire the world in the 21st century.

    $600,000
  3. Center for Excellence in EducationMcLean, VA

    The center seeks high achieving high school and university students from diverse economic and cultural backgrounds to further develop their mathematical and scientific skills.

    $275,000
  4. Princeton UniversityPrinceton, NJ

    General purpose

    $51,000
  5. Regents of the University of CaliforniaOakland, CA

    General purpose

    $5,000
  6. The Decibels FoundationWestford, MA

    General purpose

    $5,000
  7. IEEE Computer SocietyLos Alamitos, CA

    General purpose

    $5,000
  8. Korean Society for Molecular & Cellular BSouth Korea

    General purpose

    $5,000
  9. St Francis HouseGainesville, FL

    General purpose

    $5,000
  10. Swim Across AmericaCharlotte, NC

    Dedicated to raising money and awareness for cancer research, prevention and treatment through swimming-related events. With the help of hundreds of volunteers nationwide and past and current olympians, saa is helping to find a cure for cancer through athleticism, community outreach and direct service.

    $5,000
  11. Harvard UniversityMassachusetts Hall Cam, MA

    General purpose

    $2,000
  12. Chamber Music Foundation of New EnglandNewton, MA

    General purpose

    $1,800

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education2 grants $1,551,00063% of the total
  2. Science and technology2 grants $875,00036% of the total
  3. Philanthropy and grantmaking2 grants $10,000<1% of the total
  4. Housing and shelter1 grant $5,000<1% of the total
  5. Arts and culture1 grant $1,800<1% of the total

By State

Grants to organizations with a US address, latest year.

  1. Massachusetts5 grants $1,513,800
  2. District of Columbia1 grant $600,000
  3. Virginia1 grant $275,000
  4. New Jersey1 grant $51,000
  5. California2 grants $10,000
  6. Florida1 grant $5,000

Officers, directors and trustees

1 person as filed

As filed on the return, with average hours per week and pay from the foundation.

  • F Thomson LeightonTRUSTEE Hours 1Pay $0

The return

More foundations

Similar foundations

Same main cause (education), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. Rowland Foundation IncBoston, MA 41 grants Accepts applications $2,325,000 giving
  2. Krupp Family FoundationBoston, MA 50 grants Preselected only $2,622,227 giving
  3. The Lowell InstituteBoston, MA 13 grants Preselected only $2,270,141 giving
  4. Ruby W and Lavon P Linn FoundationBoston, MA 12 grants Preselected only $2,667,399 giving
  5. The Diomedes FoundationConcord, MA 18 grants Preselected only $2,257,290 giving