Grants paid by The Mountz Family Foundation
EIN 46-1547058 · Needham, MA · Form 990-PF, Part XV · NTEE T22
The Mountz Family Foundation of Needham, MA (EIN 46-1547058) reported 92 grants paid totaling $2,118,405 to 27 recipients in tax years 2018–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$2,118,405
92 grants
Recipients
27
distinct organizations
Tax years
2018–2025
8 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2018 | 22 | $399,934 | — |
| 2019 | 13 | $232,971 | — |
| 2020 | 9 | $251,780 | — |
| 2021 | 13 | $60,020 | — |
| 2022 | 8 | $216,300 | — |
| 2023 | 8 | $236,000 | — |
| 2024 | 10 | $359,700 | — |
| 2025 | 9 | $361,700 | — |
Top recipients
The 27 recipients receiving the most from The Mountz Family Foundation, by grants paid, out of 27 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| MIT | U | Cambridge, MA | 7 | $610,100 | 2025 |
| Hbs Fund for Leadership & Innovation | U | Boston, MA | 3 | $600,000 | 2020 |
| Boston Children's Hospital | U | Boston, MA | 10 | $491,925 | 2025 |
| Nashoba Brooks School | U | Concord, MA | 5 | $106,800 | 2024 |
| Sandbox Innovation Fund | U | Cambridge, MA | 1 | $50,000 | 2018 |
| The Fenn School 04-2104064 | B | Concord, MA | 3 | $35,000 | 2025 |
| Carroll School 04-2145258 | C | Lincoln, MA | 3 | $32,500 | 2025 |
| Lexington Montessori School 04-2314257 | B | Lexington, MA | 3 | $31,200 | 2019 |
| Boston Children's Hospital Trust | U | Boston, MA | 3 | $26,200 | 2020 |
| Deerfield Academy | U | Deerfield, MA | 1 | $25,000 | 2025 |
| Nashoba Regional School District | U | Bolton, MA | 1 | $20,000 | 2020 |
| Family Reach Foundation 33-2317349 | D | Parsippany, NJ | 1 | $13,800 | 2018 |
| Brigham & Women's Hospital 04-2312909 | C | Boston, MA | 6 | $13,500 | 2023 |
| National Inventors Hall of Fame 34-1580038 | B | North Canton, OH | 4 | $12,000 | 2025 |
| Harvard Business School | U | Boston, MA | 1 | $10,000 | 2022 |
| Cottonwood Leadership Fund 48-0964587 | D | Lawrence, KS | 1 | $10,000 | 2021 |
| Pan-Mass Challenge 04-2746912 | D | Needham, MA | 8 | $8,050 | 2025 |
| Mayo Clinic | U | Scottsdale, AZ | 3 | $5,000 | 2020 |
| Dinner for Yawkey Way House - Roche Brothers | U | Boston, MA | 17 | $4,655 | 2019 |
| The Umbrella Arts Center | U | Concord, MA | 2 | $3,500 | 2025 |
| Khan Academy 26-1544963 | B | Mountain View, CA | 3 | $3,000 | 2025 |
| Mayo Clinic | U | Rochester, MN | 1 | $2,000 | 2021 |
| Cottonwood Foundation 41-1714008 | B | White Bear Lake, MN | 1 | $1,680 | 2020 |
| Mathcounts Foundation 54-1295407 | B | Alexandria, VA | 1 | $1,000 | 2021 |
| North Andover High School Parent Advisory Council 26-3787499 | B | North Andover, MA | 1 | $1,000 | 2024 |
| Boston Athletic Association | U | Boston, MA | 1 | $395 | 2021 |
| Side-Out Foundation 20-2510044 | B | Fairfax, VA | 1 | $100 | 2018 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 92 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | MIT Cambridge, MA | U | $280,000 | paid | GENERAL | 202631389349100213 |
| 2025 | Deerfield Academy Deerfield, MA | U | $25,000 | paid | GENERAL | 202631389349100213 |
| 2025 | Boston Children's Hospital Boston, MA | U | $22,200 | paid | GENERAL | 202631389349100213 |
| 2025 | Carroll School Lincoln, MA | C | $12,500 | paid | GENERAL | 202631389349100213 |
| 2025 | The Fenn School Concord, MA | B | $12,500 | paid | GENERAL | 202631389349100213 |
| 2025 | National Inventors Hall of Fame North Canton, OH | B | $5,000 | paid | GENERAL | 202631389349100213 |
| 2025 | The Umbrella Arts Center Concord, MA | U | $2,500 | paid | GENERAL | 202631389349100213 |
| 2025 | Pan Mass Challenge Needham, MA | D | $1,000 | paid | GENERAL | 202631389349100213 |
| 2025 | Khan Academy Mountain View, CA | B | $1,000 | paid | GENERAL | 202631389349100213 |
| 2024 | MIT Cambridge, MA | U | $280,000 | paid | GENERAL | 202541329349101949 |
| 2024 | Nashoba Brooks School Concord, MA | U | $25,000 | paid | GENERAL | 202541329349101949 |
| 2024 | Boston Children's Hospital Boston, MA | U | $23,200 | paid | GENERAL | 202541329349101949 |
| 2024 | The Fenn School Concord, MA | B | $12,500 | paid | GENERAL | 202541329349101949 |
| 2024 | Carroll School Lincoln, MA | C | $10,000 | paid | GENERAL | 202541329349101949 |
| 2024 | National Inventors Hall of Fame North Canton, OH | B | $5,000 | paid | GENERAL | 202541329349101949 |
| 2024 | The Umbrella Arts Center Concord, MA | U | $1,000 | paid | GENERAL | 202541329349101949 |
| 2024 | North Andover High School Parent Advisory Council North Andover, MA | B | $1,000 | paid | GENERAL | 202541329349101949 |
| 2024 | Khan Academy Mountain View, CA | B | $1,000 | paid | GENERAL | 202541329349101949 |
| 2024 | Pan Mass Challenge Needham, MA | D | $1,000 | paid | GENERAL | 202541329349101949 |
| 2023 | Boston Children's Hospital Boston, MA | U | $161,000 | paid | GENERAL | 202421359349103682 |
| 2023 | Nashoba Brooks School Concord, MA | U | $30,000 | paid | GENERAL | 202421359349103682 |
| 2023 | MIT Cambridge, MA | U | $20,000 | paid | GENERAL | 202421359349103682 |
| 2023 | Carroll School Lincoln, MA | C | $10,000 | paid | GENERAL | 202421359349103682 |
| 2023 | The Fenn School Concord, MA | B | $10,000 | paid | GENERAL | 202421359349103682 |
| 2023 | Brigham and Women's Hospital Boston, MA | C | $3,000 | paid | GENERAL | 202421359349103682 |
| 2023 | Pan Mass Challenge Needham, MA | D | $1,000 | paid | GENERAL | 202421359349103682 |
| 2023 | National Inventors Hall of Fame North Canton, OH | B | $1,000 | paid | GENERAL | 202421359349103682 |
| 2022 | Boston Children's Hospital Boston, MA | U | $163,500 | paid | GENERAL | 202341329349102949 |
| 2022 | Nashoba Brooks School Concord, MA | U | $26,800 | paid | GENERAL | 202341329349102949 |
| 2022 | Harvard Business School Boston, MA | U | $10,000 | paid | GENERAL | 202341329349102949 |
| 2022 | MIT Cambridge, MA | U | $10,000 | paid | GENERAL | 202341329349102949 |
| 2022 | Brigham and Women's Hospital Boston, MA | C | $3,000 | paid | GENERAL | 202341329349102949 |
| 2022 | Khan Academy Mountain View, CA | B | $1,000 | paid | GENERAL | 202341329349102949 |
| 2022 | Pan Mass Challenge Needham, MA | D | $1,000 | paid | GENERAL | 202341329349102949 |
| 2022 | National Inventors Hall of Fame North Canton, OH | B | $1,000 | paid | GENERAL | 202341329349102949 |
| 2021 | Nashoba Brooks School Concord, MA | U | $20,000 | paid | GENERAL | 202221339349100732 |
| 2021 | Boston Children's Hospital Boston, MA | U | $15,000 | paid | GENERAL | 202221339349100732 |
| 2021 | Cottonwood Leadership Fund Lawrence, KS | D | $10,000 | paid | GENERAL | 202221339349100732 |
| 2021 | Nashoba Brooks School Concord, MA | U | $5,000 | paid | GENERAL | 202221339349100732 |
| 2021 | Brigham and Women's Hospital Boston, MA | C | $2,500 | paid | GENERAL | 202221339349100732 |
| 2021 | Mayo Clinic Rochester, MN | U | $2,000 | paid | GENERAL | 202221339349100732 |
| 2021 | Boston Children's Hospital Boston, MA | U | $1,825 | paid | GENERAL | 202221339349100732 |
| 2021 | Pan Mass Challenge Needham, MA | D | $1,025 | paid | GENERAL | 202221339349100732 |
| 2021 | Pan Mass Challenge Needham, MA | D | $1,025 | paid | GENERAL | 202221339349100732 |
| 2021 | Mathcounts Foundation Alexandria, VA | B | $1,000 | paid | GENERAL | 202221339349100732 |
| 2021 | Boston Athletic Association Boston, MA | U | $395 | paid | GENERAL | 202221339349100732 |
| 2021 | Boston Children's Hospital Boston, MA | U | $150 | paid | GENERAL | 202221339349100732 |
| 2021 | MIT Cambridge, MA | U | $100 | paid | GENERAL | 202221339349100732 |
| 2020 | Hbs Fund for Leadership & Innovation Boston, MA | U | $200,000 | paid | GENERAL | 202101339349102105 |
| 2020 | Nashoba Regional School District Bolton, MA | U | $20,000 | paid | GENERAL | 202101339349102105 |
| 2020 | Boston Children's Hospital Trust Boston, MA | U | $15,000 | paid | GENERAL | 202101339349102105 |
| 2020 | MIT Cambridge, MA | U | $10,000 | paid | GENERAL | 202101339349102105 |
| 2020 | Brigham & Women's Hospital Boston, MA | C | $2,000 | paid | GENERAL | 202101339349102105 |
| 2020 | Mayo Clinic Scottsdale, AZ | U | $2,000 | paid | GENERAL | 202101339349102105 |
| 2020 | Cottonwood Foundation White Bear Lake, MN | B | $1,680 | paid | GENERAL | 202101339349102105 |
| 2020 | Pan-Mass Challenge Needham, MA | D | $1,000 | paid | GENERAL | 202101339349102105 |
| 2020 | Boston Children's Hospital Trust Boston, MA | U | $100 | paid | GENERAL | 202101339349102105 |
| 2019 | Hbs Fund for Leadership & Innovation Boston, MA | U | $200,000 | paid | GENERAL | 202011959349101011 |
| 2019 | Boston Children's Hospital Trust Boston, MA | U | $11,100 | paid | GENERAL | 202011959349101011 |
| 2019 | MIT Cambridge, MA | U | $10,000 | paid | GENERAL | 202011959349101011 |
| 2019 | Lexington Montessori School Lexington, MA | B | $3,000 | paid | GENERAL | 202011959349101011 |
| 2019 | Boston Children's Hospital Boston, MA | U | $2,400 | paid | GENERAL | 202011959349101011 |
| 2019 | Brigham & Women's Hospital Boston, MA | C | $2,000 | paid | GENERAL | 202011959349101011 |
| 2019 | Mayo Clinic Scottsdale, AZ | U | $2,000 | paid | GENERAL | 202011959349101011 |
| 2019 | Pan-Mass Challenge Needham, MA | D | $1,000 | paid | GENERAL | 202011959349101011 |
| 2019 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $299 | paid | GENERAL | 202011959349101011 |
| 2019 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $299 | paid | GENERAL | 202011959349101011 |
| 2019 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $299 | paid | GENERAL | 202011959349101011 |
| 2019 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $299 | paid | GENERAL | 202011959349101011 |
| 2019 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $275 | paid | GENERAL | 202011959349101011 |
| 2018 | Hbs Fund for Leadership & Innovation Boston, MA | U | $200,000 | paid | GENERAL | 201911339349102981 |
| 2018 | Boston Children's Hospital Boston, MA | U | $100,000 | paid | GENERAL | 201911339349102981 |
| 2018 | Sandbox Innovation Fund Cambridge, MA | U | $50,000 | paid | GENERAL | 201911339349102981 |
| 2018 | Lexington Montessori School Lexington, MA | B | $25,000 | paid | GENERAL | 201911339349102981 |
| 2018 | Family Reach Foundation Parsippany, NJ | D | $13,800 | paid | GENERAL | 201911339349102981 |
| 2018 | Lexington Montessori School Lexington, MA | B | $3,200 | paid | GENERAL | 201911339349102981 |
| 2018 | Boston Children's Hospital Boston, MA | U | $2,650 | paid | GENERAL | 201911339349102981 |
| 2018 | Brigham & Women's Hospital Boston, MA | C | $1,000 | paid | GENERAL | 201911339349102981 |
| 2018 | Mayo Clinic Scottsdale, AZ | U | $1,000 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $361 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $297 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $297 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $297 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $297 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $275 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $275 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $217 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $217 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $217 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $217 | paid | GENERAL | 201911339349102981 |
| 2018 | Dinner for Yawkey Way House - Roche Brothers Boston, MA | U | $217 | paid | GENERAL | 201911339349102981 |
| 2018 | Side-Out Foundation Fairfax, VA | B | $100 | paid | GENERAL | 201911339349102981 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2025 | 2025-12-31 | not stated | 2025v4.1 | 202631389349100213 |
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.1 | 202541329349101949 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202421359349103682 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202341329349102949 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.2 | 202221339349100732 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202101339349102105 |
| 990PF | 2019 | 2019-12-31 | not stated | 2019v5.1 | 202011959349101011 |
| 990PF | 2018 | 2018-12-31 | not stated | 2018v3.1 | 201911339349102981 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/461547058.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.