Grants paid by Lawrence a & Joan E Siff Foundation F/K/a Lawrence a Siff Foundation
EIN 42-1612889 · Worcester, MA · Form 990-PF, Part XV · NTEE T22
Lawrence a & Joan E Siff Foundation F/K/a Lawrence a Siff Foundation of Worcester, MA (EIN 42-1612889) reported 105 grants paid totaling $202,251 to 46 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
$202,251
105 grants
Recipients
46
distinct organizations
Tax years
2018–2025
8 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2018 | 13 | $31,625 | — |
| 2019 | 16 | $43,950 | — |
| 2020 | 12 | $37,150 | — |
| 2021 | 18 | $30,250 | — |
| 2022 | 21 | $29,595 | — |
| 2023 | 10 | $10,775 | — |
| 2024 | 6 | $6,550 | — |
| 2025 | 9 | $12,356 | — |
Top recipients
The 46 recipients receiving the most from Lawrence a & Joan E Siff Foundation F/K/a Lawrence a Siff Foundation, by grants paid, out of 46 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| Brown University | U | Providence, RI | 5 | $75,000 | 2022 |
| Temple Beth Avodah | U | Newton, MA | 6 | $37,850 | 2023 |
| Museum of Science 04-2103916 | B | Boston, MA | 8 | $26,500 | 2025 |
| Franciscan Hospital for Children 04-2156082 | D | Brighton, MA | 6 | $20,000 | 2025 |
| Two Ten International Footwear Foundation 22-2579809 | D | Waltham, MA | 8 | $12,000 | 2025 |
| Next for Autism 57-1136147 | C | New York, NY | 3 | $7,200 | 2025 |
| Northeast Arc 04-2232416 | B | Danvers, MA | 1 | $5,000 | 2019 |
| Tufts University 23-7123824 | B | Medford, MA | 6 | $2,200 | 2024 |
| Brimmer and May School 04-2103935 | B | Chestnut Hill, MA | 3 | $1,650 | 2021 |
| Sustainable Seattle 31-1580932 | C | Seattle, WA | 1 | $1,000 | 2018 |
| Earth Creative 85-1950354 | C | Lake Forest Park, WA | 2 | $1,000 | 2021 |
| World Against Toys Causing Harm 22-3077010 | C | Boston, MA | 4 | $1,000 | 2022 |
| The Academy of American Poets 13-1879953 | C | New York, NY | 4 | $1,000 | 2023 |
| The Boston Collegiate Charter School 06-1503911 | C | Dorchester, MA | 1 | $1,000 | 2019 |
| Pmc Jimmy Fund | U | Needham, MA | 4 | $1,000 | 2022 |
| The Windsor School 04-1937800 | D | Boston, MA | 2 | $900 | 2025 |
| Museum of Fine Arts 04-2103607 | B | Boston, MA | 6 | $900 | 2025 |
| Dana Farber Cancer Institute 04-2263040 | C | Boston, MA | 2 | $780 | 2022 |
| Boston Athenaeum 04-2859053 | D | Boston, MA | 2 | $750 | 2023 |
| Biobuilder Educational Foundation 45-3844761 | B | Newton, MA | 2 | $500 | 2022 |
| Boston University Law School | U | Boston, MA | 2 | $500 | 2022 |
| Children's Heart Foundation 04-2133242 | D | Boston, MA | 1 | $400 | 2019 |
| The Trustees of Reservations 04-2105780 | B | Boston, MA | 2 | $325 | 2023 |
| Cape Cod Healthcare Foundation 04-3475950 | B | Hyannis, MA | 1 | $300 | 2021 |
| Father Bill's & Mainspring 22-2538039 | B | Brockton, MA | 1 | $250 | 2020 |
| Alzheimer's Association of Ma | U | Watertown, MA | 1 | $250 | 2022 |
| Tenacre Country Day School 04-2506944 | C | Wellesley, MA | 1 | $250 | 2021 |
| Transom Story 33-2586224 | C | Woods Hole, MA | 1 | $200 | 2025 |
| Graywolf Press 91-1257237 | B | Minneapolis, MN | 1 | $200 | 2023 |
| Grow Associates Inc 23-7378144 | B | Randolf, MA | 1 | $200 | 2023 |
| The Price Center 04-2625859 | B | Newton, MA | 1 | $180 | 2018 |
| Temple Isaiah | U | Lexington, MA | 1 | $180 | 2022 |
| Commonwealth of Ma - Department of Conservation and Recreation | U | Boston, MA | 2 | $160 | 2019 |
| New England Aquarium 04-2297514 | C | Boston, MA | 1 | $160 | 2018 |
| Frick Collection New York 13-1624012 | D | New York, NY | 1 | $156 | 2025 |
| The Morgan Library and Museum 13-1624146 | B | New York, NY | 1 | $150 | 2025 |
| Philip and Bernice Frieze Fund | U | Boston, MA | 1 | $150 | 2022 |
| Vitas Community Connection 27-4027765 | B | Cincinnati, OH | 1 | $150 | 2019 |
| Zoo New England | U | Boston, MA | 1 | $150 | 2018 |
| Frieze Fund at Childrens Hospital | U | Boston, MA | 1 | $125 | 2018 |
| Linden Ponds Resident Aid Fund | U | Hingham, MA | 1 | $100 | 2022 |
| Institute of Contemporary Art 04-2104327 | B | Boston, MA | 1 | $100 | 2022 |
| Spaulding Rehabilitation 26-0003495 | C | Boston, MA | 1 | $100 | 2022 |
| Mass Audubon | U | Lincoln, MA | 1 | $100 | 2021 |
| Make a Wish Foundation Massachusetts 22-2867371 | D | Boston, MA | 1 | $100 | 2022 |
| The Thoreau Society 04-3328106 | D | Concord, MA | 1 | $85 | 2022 |
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 105 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | Museum of Science Boston, MA | B | $6,000 | paid | GENERAL | 202631329349100413 |
| 2025 | Next for Autism New York, NY | C | $3,000 | paid | GENERAL | 202631329349100413 |
| 2025 | Two Ten International Footwear Foundation Waltham, MA | D | $1,500 | paid | GENERAL | 202631329349100413 |
| 2025 | Franciscan Hospital for Children Brighton, MA | D | $1,000 | paid | GENERAL | 202631329349100413 |
| 2025 | The Windsor School Boston, MA | D | $200 | paid | GENERAL | 202631329349100413 |
| 2025 | Transom Story Woods Hole, MA | C | $200 | paid | GENERAL | 202631329349100413 |
| 2025 | Frick Collection New York New York, NY | D | $156 | paid | GENERAL | 202631329349100413 |
| 2025 | Museum of Fine Arts Boston, MA | B | $150 | paid | GENERAL | 202631329349100413 |
| 2025 | The Morgan Library and Museum New York, NY | B | $150 | paid | GENERAL | 202631329349100413 |
| 2024 | Museum of Science Boston, MA | B | $3,000 | paid | GENERAL | 202511189349101606 |
| 2024 | Two Ten International Footwear Foundation Waltham, MA | D | $1,500 | paid | GENERAL | 202511189349101606 |
| 2024 | Franciscan Hospital for Children Brighton, MA | D | $1,000 | paid | GENERAL | 202511189349101606 |
| 2024 | The Windsor School Boston, MA | D | $700 | paid | GENERAL | 202511189349101606 |
| 2024 | Tufts University Medford, MA | B | $200 | paid | GENERAL | 202511189349101606 |
| 2024 | Museum of Fine Arts Boston, MA | B | $150 | paid | GENERAL | 202511189349101606 |
| 2023 | Temple Beth Avodah Newton, MA | U | $4,000 | paid | GENERAL | 202441159349101004 |
| 2023 | Museum of Science Boston, MA | B | $3,000 | paid | GENERAL | 202441159349101004 |
| 2023 | Two Ten International Footwear Foundation Waltham, MA | D | $1,500 | paid | GENERAL | 202441159349101004 |
| 2023 | Next for Autism New York, NY | C | $1,200 | paid | GENERAL | 202441159349101004 |
| 2023 | The Academy of American Poets New York, NY | C | $250 | paid | GENERAL | 202441159349101004 |
| 2023 | Boston Athenaeum Boston, MA | D | $200 | paid | GENERAL | 202441159349101004 |
| 2023 | Graywolf Press Minneapolis, MN | B | $200 | paid | GENERAL | 202441159349101004 |
| 2023 | Grow Associates Inc Randolf, MA | B | $200 | paid | GENERAL | 202441159349101004 |
| 2023 | Museum of Fine Arts Boston, MA | B | $150 | paid | GENERAL | 202441159349101004 |
| 2023 | The Trustees of Reservations Boston, MA | B | $75 | paid | GENERAL | 202441159349101004 |
| 2022 | Brown University Providence, RI | U | $15,000 | paid | GENERAL | 202311869349100211 |
| 2022 | Temple Beth Avodah Newton, MA | U | $3,800 | paid | GENERAL | 202311869349100211 |
| 2022 | Museum of Science Boston, MA | B | $3,000 | paid | GENERAL | 202311869349100211 |
| 2022 | Franciscan Hospital for Children Brighton, MA | D | $3,000 | paid | GENERAL | 202311869349100211 |
| 2022 | Two Ten International Footwear Foundation Waltham, MA | D | $1,500 | paid | GENERAL | 202311869349100211 |
| 2022 | Boston Athenaeum Boston, MA | D | $550 | paid | GENERAL | 202311869349100211 |
| 2022 | Pmc Jimmy Fund Needham, MA | U | $250 | paid | GENERAL | 202311869349100211 |
| 2022 | Boston University Law School Boston, MA | U | $250 | paid | GENERAL | 202311869349100211 |
| 2022 | Biobuilder Educational Foundation Newton, MA | B | $250 | paid | GENERAL | 202311869349100211 |
| 2022 | The Academy of American Poets New York, NY | C | $250 | paid | GENERAL | 202311869349100211 |
| 2022 | Tufts University Medford, MA | B | $250 | paid | GENERAL | 202311869349100211 |
| 2022 | Alzheimer's Association of Ma Watertown, MA | U | $250 | paid | GENERAL | 202311869349100211 |
| 2022 | World Against Toys Causing Harm Boston, MA | C | $250 | paid | GENERAL | 202311869349100211 |
| 2022 | Temple Isaiah Lexington, MA | U | $180 | paid | GENERAL | 202311869349100211 |
| 2022 | Dana Farber Cancer Institute Boston, MA | C | $180 | paid | GENERAL | 202311869349100211 |
| 2022 | Philip and Bernice Frieze Fund Boston, MA | U | $150 | paid | GENERAL | 202311869349100211 |
| 2022 | Make a Wish Foundation Massachusetts Boston, MA | D | $100 | paid | GENERAL | 202311869349100211 |
| 2022 | Institute of Contemporary Art Boston, MA | B | $100 | paid | GENERAL | 202311869349100211 |
| 2022 | Linden Ponds Resident Aid Fund Hingham, MA | U | $100 | paid | GENERAL | 202311869349100211 |
| 2022 | Spaulding Rehabilitation Boston, MA | C | $100 | paid | GENERAL | 202311869349100211 |
| 2022 | The Thoreau Society Concord, MA | D | $85 | paid | GENERAL | 202311869349100211 |
| 2021 | Brown University Providence, RI | U | $15,000 | paid | GENERAL | 202221379349101127 |
| 2021 | Franciscan Hospital for Children Brighton, MA | D | $4,000 | paid | GENERAL | 202221379349101127 |
| 2021 | Temple Beth Avodah Newton, MA | U | $3,600 | paid | GENERAL | 202221379349101127 |
| 2021 | Museum of Science Boston, MA | B | $2,500 | paid | GENERAL | 202221379349101127 |
| 2021 | Two Ten International Footwear Foundation Waltham, MA | D | $1,500 | paid | GENERAL | 202221379349101127 |
| 2021 | Dana Farber Cancer Institute Boston, MA | C | $600 | paid | GENERAL | 202221379349101127 |
| 2021 | Earth Creative Lake Forest Park, WA | C | $500 | paid | GENERAL | 202221379349101127 |
| 2021 | Cape Cod Healthcare Foundation Hyannis, MA | B | $300 | paid | GENERAL | 202221379349101127 |
| 2021 | The Trustees of Reservations Boston, MA | B | $250 | paid | GENERAL | 202221379349101127 |
| 2021 | Biobuilder Educational Foundation Newton, MA | B | $250 | paid | GENERAL | 202221379349101127 |
| 2021 | Tenacre Country Day School Wellesley, MA | C | $250 | paid | GENERAL | 202221379349101127 |
| 2021 | The Academy of American Poets New York, NY | C | $250 | paid | GENERAL | 202221379349101127 |
| 2021 | Brimmer and May School Chestnut Hill, MA | B | $250 | paid | GENERAL | 202221379349101127 |
| 2021 | World Against Toys Causing Harm Boston, MA | C | $250 | paid | GENERAL | 202221379349101127 |
| 2021 | Boston University Law School Boston, MA | U | $250 | paid | GENERAL | 202221379349101127 |
| 2021 | Tufts University Medford, MA | B | $250 | paid | GENERAL | 202221379349101127 |
| 2021 | Museum of Fine Arts Boston, MA | B | $150 | paid | GENERAL | 202221379349101127 |
| 2021 | Mass Audubon Lincoln, MA | U | $100 | paid | GENERAL | 202221379349101127 |
| 2020 | Brown University Providence, RI | U | $15,000 | paid | GENERAL | 202101349349103165 |
| 2020 | Temple Beth Avodah Newton, MA | U | $8,500 | paid | GENERAL | 202101349349103165 |
| 2020 | Franciscan Hospital for Children Brighton, MA | D | $5,000 | paid | GENERAL | 202101349349103165 |
| 2020 | Next for Autism New York, NY | C | $3,000 | paid | GENERAL | 202101349349103165 |
| 2020 | Museum of Science Boston, MA | B | $2,500 | paid | GENERAL | 202101349349103165 |
| 2020 | Two Ten International Footwear Foundation Waltham, MA | D | $1,500 | paid | GENERAL | 202101349349103165 |
| 2020 | Earth Creative Lake Forest Park, WA | C | $500 | paid | GENERAL | 202101349349103165 |
| 2020 | Father Bill's & Mainspring Brockton, MA | B | $250 | paid | GENERAL | 202101349349103165 |
| 2020 | Pmc Jimmy Fund Needham, MA | U | $250 | paid | GENERAL | 202101349349103165 |
| 2020 | World Against Toys Causing Harm Boston, MA | C | $250 | paid | GENERAL | 202101349349103165 |
| 2020 | Tufts University Medford, MA | B | $250 | paid | GENERAL | 202101349349103165 |
| 2020 | Museum of Fine Arts Boston, MA | B | $150 | paid | GENERAL | 202101349349103165 |
| 2019 | Brown University Providence, RI | U | $15,000 | paid | GENERAL | 202011359349100301 |
| 2019 | Temple Beth Avodah Newton, MA | U | $9,350 | paid | GENERAL | 202011359349100301 |
| 2019 | Franciscan Hospital for Children Brighton, MA | D | $6,000 | paid | GENERAL | 202011359349100301 |
| 2019 | Northeast Arc Danvers, MA | B | $5,000 | paid | GENERAL | 202011359349100301 |
| 2019 | Museum of Science Boston, MA | B | $4,000 | paid | GENERAL | 202011359349100301 |
| 2019 | Two Ten International Footwear Foundation Waltham, MA | D | $1,500 | paid | GENERAL | 202011359349100301 |
| 2019 | The Boston Collegiate Charter School Dorchester, MA | C | $1,000 | paid | GENERAL | 202011359349100301 |
| 2019 | Children's Heart Foundation Boston, MA | D | $400 | paid | GENERAL | 202011359349100301 |
| 2019 | Brimmer and May School Chestnut Hill, MA | B | $300 | paid | GENERAL | 202011359349100301 |
| 2019 | World Against Toys Causing Harm Boston, MA | C | $250 | paid | GENERAL | 202011359349100301 |
| 2019 | The Academy of American Poets New York, NY | C | $250 | paid | GENERAL | 202011359349100301 |
| 2019 | Tufts University Medford, MA | B | $250 | paid | GENERAL | 202011359349100301 |
| 2019 | Pmc Jimmy Fund Needham, MA | U | $250 | paid | GENERAL | 202011359349100301 |
| 2019 | Museum of Fine Arts Boston, MA | B | $150 | paid | GENERAL | 202011359349100301 |
| 2019 | Vitas Community Connection Cincinnati, OH | B | $150 | paid | GENERAL | 202011359349100301 |
| 2019 | Commonwealth of Ma - Department of Conservation and Recreation Boston, MA | U | $100 | paid | GENERAL | 202011359349100301 |
| 2018 | Brown University Providence, RI | U | $15,000 | paid | GENERAL | 201911929349100601 |
| 2018 | Temple Beth Avodah Newton, MA | U | $8,600 | paid | GENERAL | 201911929349100601 |
| 2018 | Museum of Science Boston, MA | B | $2,500 | paid | GENERAL | 201911929349100601 |
| 2018 | Two Ten International Footwear Foundation Waltham, MA | D | $1,500 | paid | GENERAL | 201911929349100601 |
| 2018 | Brimmer and May School Chestnut Hill, MA | B | $1,100 | paid | GENERAL | 201911929349100601 |
| 2018 | Sustainable Seattle Seattle, WA | C | $1,000 | paid | GENERAL | 201911929349100601 |
| 2018 | Tufts University Medford, MA | B | $1,000 | paid | GENERAL | 201911929349100601 |
| 2018 | Pmc Jimmy Fund Needham, MA | U | $250 | paid | GENERAL | 201911929349100601 |
| 2018 | The Price Center Newton, MA | B | $180 | paid | GENERAL | 201911929349100601 |
| 2018 | New England Aquarium Boston, MA | C | $160 | paid | GENERAL | 201911929349100601 |
| 2018 | Zoo New England Boston, MA | U | $150 | paid | GENERAL | 201911929349100601 |
| 2018 | Frieze Fund at Childrens Hospital Boston, MA | U | $125 | paid | GENERAL | 201911929349100601 |
| 2018 | Commonwealth of Ma - Department of Conservation and Recreation Boston, MA | U | $60 | paid | GENERAL | 201911929349100601 |
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 | 202631329349100413 |
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.1 | 202511189349101606 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202441159349101004 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202311869349100211 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.2 | 202221379349101127 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202101349349103165 |
| 990PF | 2019 | 2019-12-31 | not stated | 2019v5.1 | 202011359349100301 |
| 990PF | 2018 | 2018-12-31 | not stated | 2018v3.1 | 201911929349100601 |
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/421612889.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.