funder-graph › Recipients
Who funds Sightline Institute
EIN 52-1833599 · Seattle, WA · NTEE C28Z
Sightline Institute of Seattle, WA (EIN 52-1833599) was named as a grant recipient by 53 funders in 247 grants paid totaling $10,721,726 in tax years 2018–2025, as reported on the funders' Forms 990-PF and 990 Schedule I. Each edge was resolved to this EIN at the match tier shown. Dataset version 2026.09.0, built 2026-09-03.
Grants received
$10,721,726
247 grants paid
Funders
53
distinct grantmakers
Tax years
2018–2025
as reported by funders
Approved for future payment
$125,000
not included in grants received
Funders
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.
Grants
The 249 most recent grants naming this organization.
| Tax year | Funder | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|---|
| 2025 | Fidelity Investments Charitable Gift Fund | Sightline Institute Seattle, WA | A | $176,950 | paid | For grant recipient's exempt purposes | 202601389349301700 |
| 2025 | Donor Advised Charitable Giving Inc | Sightline Institute Seattle, WA | A | $43,100 | paid | ENVIRONMENTAL AND ANIMALS | 202611199349300601 |
| 2025 | Vanguard Charitable Endowment Program | Sightline Institute Seattle, WA | A | $40,000 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202621329349306657 |
| 2025 | American Online Giving Foundation Inc | Sightline Institute Seattle, WA | A | $17,584 | paid | GENERAL SUPPORT | 202533509349301608 |
| 2025 | American Online Giving Foundation Inc | Sightline Institute Seattle, WA | A | $17,584 | paid | GENERAL SUPPORT | 202641969349302754 |
| 2025 | Cosman Family Fdn Dima-Wdp | Sightline Institute Seattle, WA | C | $17,000 | paid | UNRESTRICTED GENERAL | 202611779349100421 |
| 2025 | Collier Community Foundation Inc | Sightline Institute Seattle, WA | A | $11,000 | paid | ENVIRONMENT & ANIMALS | 202640989349300919 |
| 2025 | So Hum Foundation | Sightline Institute Seattle, WA | C | $5,000 | paid | GENERAL OPERATING SUPPORT | 202523029349101217 |
| 2025 | Martin Djos Family Foundation | Sightline Institute Seattle, WA | C | $1,555 | paid | GENERAL | 202641339349101954 |
| 2024 | Kaphan Foundation | Sightline Institute Seattle, WA | C | $572,649 | paid | GENERAL SUPPORT | 202523219349100037 |
| 2024 | Laidir Foundation C/O Brian Lonergan | Sightline Institute Seattle, WA | C | $525,000 | paid | TO FURTHER THE MISSION OF SIGHTLINE INSTITUTE'S HOUSING AND URBANISM PROGRAM. | 202533159349100443 |
| 2024 | Fidelity Investments Charitable Gift Fund | Sightline Institute Seattle, WA | A | $331,100 | paid | For grant recipient's exempt purposes | 202521349349310887 |
| 2024 | Democracy Fund Inc | Sightline Institute Seattle, WA | C | $175,000 | paid | Program support for the Democracy and Elections Program | 202503189349101720 |
| 2024 | Unite America Institute Inc | Sightline Institute Seattle, WA | A | $150,000 | paid | TO SUPPORT EDUCATE & ENGAGE KEY POLICYMAKERS; BUILD THE EVIDENCE BASE FOR REFORM; AMPLIFY A COMPELLING NATIONAL NARRATIVE | 202533219349308488 |
| 2024 | The Schmidt Family Foundation | Sightline Institute Seattle, WA | C | $150,000 | paid | ENCOURAGING A JUST TRANSITION AWAY FROM FOSSIL FUELS | 202513219349104316 |
| 2024 | Treeline Foundation | Sightline Institute Seattle, WA | B | $100,000 | paid | TO SUPPORT EFFORTS TO ADDRESS CLIMATE CHANGE | 202503099349100735 |
| 2024 | The Bullitt Foundation | Sightline Institute Seattle, WA | C | $95,000 | paid | FOR A GENERAL SUPPORT EXIT GRANT. | 202512819349100216 |
| 2024 | Impactassetsinc | Sightline Institute Seattle, WA | A | $55,500 | paid | GENERAL SUPPORT | 202543169349307999 |
| 2024 | The Oregon Community Foundation | Sightline Institute Seattle, WA | A | $42,500 | paid | Environment | 202503189349314430 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $40,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | Donor Advised Charitable Giving Inc | Sightline Institute Seattle, WA | A | $39,000 | paid | ENVIRONMENTAL AND ANIMALS | 202541069349300729 |
| 2024 | Wiancko Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $35,000 | paid | UNRESTRICTED | 202543179349102154 |
| 2024 | Laird Norton Family Foundation | Sightline Institute Seattle, WA | B | $30,000 | paid | GENERAL OPERATING SUPPORT | 202543109349101039 |
| 2024 | Ronald W Naito Md Foundation | Sightline Institute Seattle, WA | C | $30,000 | paid | GENERAL OPERATING | 202522869349100337 |
| 2024 | Ordinary People Foundation | Sightline Institute Seattle, WA | B | $30,000 | paid | Environmental Protection | 202523229349101007 |
| 2024 | American Online Giving Foundation Inc | Sightline Institute Seattle, WA | A | $29,901 | paid | GENERAL SUPPORT | 202530159349302758 |
| 2024 | Vanguard Charitable Endowment Program | Sightline Institute Seattle, WA | A | $26,500 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202511349349313096 |
| 2024 | Article IV | Sightline Institute Seattle, WA | A | $25,000 | paid | General support | 202521319349300302 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $20,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | The Cosman Family Foundation | Sightline Institute Seattle, WA | C | $16,000 | paid | UNRESTRICTED GENERAL | 202511229349100346 |
| 2024 | Amalgamated Charitable Foundation Inc | Sightline Institute Seattle, WA | A | $15,250 | paid | General operating support | 202543179349307759 |
| 2024 | Eric Anderson Foundation | Sightline Institute Seattle, WA | C | $15,000 | paid | GENERAL SUPPORT | 202521329349101807 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $12,500 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | Ridge Road Foundation C/O Scott Kim | Sightline Institute Seattle, WA | C | $11,000 | paid | CONTRIBUTION TO BE USED FOR CHARITABLE PURPOSES | 202541469349100154 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE SUPPORT FOR DEMOCRACY WORK. | 202503189349315665 |
| 2024 | Tides Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | SUSTAINABLE ENVIRONMENT | 202523189349301347 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | Grousemont Foundation | Sightline Institute Seattle, WA | C | $10,000 | paid | GENERAL & UNRESTRICTED | 202533219349103468 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $7,500 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | So Hum Foundation | Sightline Institute Seattle, WA | C | $5,000 | paid | GENERAL OPERATING SUPPORT | 202422989349101412 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $5,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $5,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | The Alan J Hirschfield Family Foundation | Sightline Institute Seattle, WA | C | $2,500 | paid | NOTE 1 | 202512339349100901 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | Martin Djos Family Foundation | Sightline Institute Seattle, WA | C | $1,037 | paid | GENERAL | 202532399349100608 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT | 202503189349315665 |
| 2024 | The Greersolien Fund | Sightline Institute Seattle, WA | B | $1,000 | paid | General & Unrestricted | 202543219349107504 |
| 2024 | Edwards Lienhart Family Foundation | Sightline Institute Seattle, WA | C | $1,000 | paid | UNRESTRICTED-GENERAL FUND SUPPORT | 202523189349105007 |
| 2024 | Reuben's Brews Foundation | Sightline Institute Seattle, WA | B | $250 | paid | 501C3 ORGANIZATION - SOCIAL | 202503169349102485 |
| 2024 | The Pfizer Foundation Inc | Sightline Institute Seattle, WA | B | $100 | paid | VOLUNTEER PROGRAM | 202503119349101850 |
| 2023 | Kaphan Foundation | Sightline Institute Seattle, WA | C | $556,094 | paid | GENERAL SUPPORT | 202403209349102105 |
| 2023 | Silicon Valley Community Foundation | Sightline Institute Seattle, WA | A | $550,000 | paid | Environment | 202413129349304911 |
| 2023 | Laidir Foundation C/O Brian Lonergan | Sightline Institute Seattle, WA | C | $525,000 | paid | TO FURTHER THE MISSION OF SIGHTLINE INSTITUTE'S HOUSING AND URBANISM PROGRAM. | 202433199349101923 |
| 2023 | Democracy Fund Inc | Sightline Institute Seattle, WA | C | $175,000 | paid | Program support for the Democracy and Elections Program | 202413199349103041 |
| 2023 | Unite America Institute Inc | Sightline Institute Seattle, WA | A | $140,000 | paid | TO MAKE THE CASE FOR ELECTION REFORM THROUGH QUANTITATIVE & QUALITATIVE RESEARCH AND TO SUPPORT THE GRANTEE'S DEMOCRACY PROGRAM | 202443209349310599 |
| 2023 | Open Philanthropy Action Fund | Sightline Institute Seattle, WA | A | $108,214 | paid | HOUSING AND URBAN DEVELOPMENT IN WASHINGTON AND OREGON | 202403209349313635 |
| 2023 | Treeline Foundation | Sightline Institute Seattle, WA | C | $100,000 | paid | TO SUPPORT EFFORTS TO ADDRESS CLIMATE CHANGE | 202413069349100536 |
| 2023 | The Oregon Community Foundation | Sightline Institute Seattle, WA | A | $75,250 | paid | Environment | 202403129349303815 |
| 2023 | The Schmidt Family Foundation | Sightline Institute Seattle, WA | C | $75,000 | paid | ENCOURAGING A JUST TRANSITION AWAY FROM FOSSIL FUELS | 202443209349108109 |
| 2023 | Schwab Charitable Fund | Sightline Institute Seattle, WA | A | $59,000 | paid | ENVIRONMENTAL AND ANIMALS | 202411039349301716 |
| 2023 | Stolte Family Foundation | Sightline Institute Seattle, WA | C | $50,000 | paid | FUNDING FOR GENERAL CHARITABLE OPERATIONS | 202413169349102426 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $40,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Wiancko Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $35,000 | paid | UNRESTRICTED | 202423169349102272 |
| 2023 | American Online Giving Foundation Inc | Sightline Institute Seattle, WA | A | $30,351 | paid | GENERAL SUPPORT | 202410469349300741 |
| 2023 | Laird Norton Family Foundation | Sightline Institute Seattle, WA | C | $30,000 | paid | GENERAL OPERATING SUPPORT | 202433139349101713 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $30,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Vanguard Charitable Endowment Program | Sightline Institute Seattle, WA | A | $26,500 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202441359349309439 |
| 2023 | North Star Collaborative Foundation | Sightline Institute Seattle, WA | C | $25,000 | paid | Supporting reseach and public education | 202412499349100116 |
| 2023 | Fidelity Investments Charitable Gift Fund | Sightline Institute Seattle, WA | A | $24,850 | paid | For grant recipient's exempt purposes | 202441369349301334 |
| 2023 | Ordinary People Foundation | Sightline Institute Seattle, WA | B | $20,000 | paid | Environmental Protection | 202403239349100200 |
| 2023 | Ronald W Naito Md Foundation | Sightline Institute Seattle, WA | C | $20,000 | paid | OPERATING SUPPORT OF RESEARCH AND COMMUNICATIONS ADVANCING SMART, SUSTAINABLE SOLUTIONS FOR CASCADIA | 202422899349100532 |
| 2023 | Ronald W Naito Md Foundation | Sightline Institute Seattle, WA | C | $20,000 | paid | OPERATING SUPPORT OF RESEARCH AND COMMUNICATIONS ADVANCING SMART, SUSTAINABLE SOLUTIONS FOR CASCADIA | 202500289349100715 |
| 2023 | Tides Foundation | Sightline Institute Seattle, WA | A | $20,000 | paid | SUSTAINABLE ENVIRONMENT | 202412739349300401 |
| 2023 | The Cosman Family Foundation | Sightline Institute Seattle, WA | C | $16,000 | paid | UNRESTRICTED GENERAL | 202421239349102202 |
| 2023 | Eric Anderson Foundation | Sightline Institute Seattle, WA | C | $15,000 | paid | GENERAL SUPPORT | 202403189349100140 |
| 2023 | Ridge Road Foundation C/O Scott Kim | Sightline Institute Seattle, WA | C | $11,000 | paid | CONTRIBUTION TO BE USED FOR CHARITABLE PURPOSES | 202441359349104919 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE SUPPORT FOR DEMOCRACY WORK. | 202443139349303424 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Grousemont Foundation | Sightline Institute Seattle, WA | C | $10,000 | paid | GENERAL & UNRESTRICTED | 202443059349101779 |
| 2023 | Sustainable Path Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | To support sustainability in the Puget Sound region. | 202433139349301238 |
| 2023 | Collier Community Foundation Inc | Sightline Institute Seattle, WA | A | $9,000 | paid | ENVIRONMENT & ANIMALS | 202440939349301739 |
| 2023 | Impactassetsinc | Sightline Institute Seattle, WA | A | $8,100 | paid | GENERAL SUPPORT | 202443189349305024 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $7,500 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $5,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | So Hum Foundation | Sightline Institute Seattle, WA | C | $5,000 | paid | GENERAL OPERATING SUPPORT | 202302719349100820 |
| 2023 | The Bank of America Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $2,500 | paid | PROGRAM/OPERATING SUPPORT | 202411309349100126 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | The Bank of America Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $2,500 | paid | PROGRAM/OPERATING SUPPORT | 202411309349100126 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | The Alan J Hirschfield Family Foundation | Sightline Institute Seattle, WA | C | $2,500 | paid | NOTE 1 | 202412479349100011 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO SUPPORT FORESTRY AND INCREASE THE AGE OF HARVEST. | 202443139349303424 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Edwards Lienhart Family Foundation | Sightline Institute Seattle, WA | C | $1,000 | paid | UNRESTRICTED-GENERAL FUND SUPPORT | 202403209349108810 |
| 2023 | The Greersolien Fund | Sightline Institute Seattle, WA | C | $1,000 | paid | General & Unrestricted | 202402219349100950 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Martin Djos Family Foundation | Sightline Institute Seattle, WA | C | $518 | paid | GENERAL | 202421219349100127 |
| 2023 | North Star Foundation | Sightline Institue Seattle, WA | D | $500 | paid | UNRESTRICTED | 202432159349100713 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $500 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Seattle Foundation | Sightline Institute Seattle, WA | A | $200 | paid | TO PROVIDE GENERAL SUPPORT. | 202443139349303424 |
| 2023 | Amazonsmile Foundation | Sightline Institute Seattle, WA | C | $40 | paid | GENERAL SUPPORT | 202540919349100629 |
| 2022 | Laidir Foundation C/O Brian Lonergan | Sightline Institute Seattle, WA | C | $525,000 | paid | TO FURTHER THE MISSION OF SIGHTLINE INSTITUTE'S HOUSING AND URBANISM PROGRAM. | 202333199349101453 |
| 2022 | Kaphan Foundation | Sightline Institute Seattle, WA | C | $490,599 | paid | GENERAL SUPPORT | 202323189349105107 |
| 2022 | Schwab Charitable Fund | Sightline Institute Seattle, WA | A | $191,975 | paid | ENVIRONMENTAL AND ANIMALS | 202330939349300403 |
| 2022 | Treeline Foundation | Sightline Institute Seattle, WA | C | $100,000 | paid | TO SUPPORT EFFORTS TO ADDRESS CLIMATE CHANGE | 202333199349103503 |
| 2022 | The Bullitt Foundation | Sightline Institute Seattle, WA | C | $95,000 | paid | FOR A GENERAL SUPPORT EXIT GRANT. | 202303079349100335 |
| 2022 | The Bullitt Foundation | Sightline Institute Seattle, WA | C | $95,000 | approved, future | FOR A GENERAL SUPPORT EXIT GRANT. | 202303079349100335 |
| 2022 | The Schmidt Family Foundation | Sightline Institute Seattle, WA | C | $75,000 | paid | ENCOURAGING A JUST TRANSITION AWAY FROM FOSSIL FUELS | 202333199349108523 |
| 2022 | The Oregon Community Foundation | Sightline Institute Seattle, WA | A | $71,000 | paid | Environment | 202303199349325760 |
| 2022 | Impactassetsinc | Sightline Institute Seattle, WA | A | $69,000 | paid | GENERAL SUPPORT | 202333199349308098 |
| 2022 | Silicon Valley Community Foundation | Sightline Institute Seattle, WA | A | $50,000 | paid | Environment | 202333189349318948 |
| 2022 | Stolte Family Foundation | Sightline Institute Seattle, WA | C | $50,000 | paid | FUNDING FOR GENERAL CHARITABLE OPERATIONS | 202313189349102181 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $40,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Laird Norton Family Foundation | Sightline Institute Seattle, WA | C | $30,000 | paid | GENERAL OPERATING SUPPORT | 202303079349100530 |
| 2022 | Wiancko Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $30,000 | paid | UNRESTRICTED | 202343199349102599 |
| 2022 | Ronald W Naito Md Foundation | Sightline Institute Seattle, WA | C | $30,000 | paid | OP. SUPPORT OF RESEARCH & COMM. ADVANCING SMART, SUSTAINABLE SOLUTIONS FOR CASCADIA | 202332909349100023 |
| 2022 | Laird Norton Family Foundation | Sightline Institute Seattle, WA | C | $30,000 | approved, future | GENERAL OPERATING SUPPORT | 202303079349100530 |
| 2022 | Fidelity Investments Charitable Gift Fund | Sightline Institute Seattle, WA | A | $26,150 | paid | For grant recipient's exempt purposes | 202430459349302913 |
| 2022 | Fidelity Investments Charitable Gift Fund | Voices for Children San Diego, CA | A | $26,150 | paid | For grant recipient's exempt purposes | 202321309349304807 |
| 2022 | American Online Giving Foundation Inc | Sightline Institute Seattle, WA | A | $25,344 | paid | GENERAL SUPPORT | 202340469349301209 |
| 2022 | Unite America Institute Inc | Sightline Institute Seattle, WA | A | $25,000 | paid | TO SUPPORT THE GRANTEE IN PUBLISHING FIVE RESEARCHED ARTICLES RELATED TO NONPARTISAN PRIMARIES AND RANKED CHOICE VOTING IN ALASKA. | 202333199349304523 |
| 2022 | North Star Collaborative Foundation | Sightline Institute Seattle, WA | C | $25,000 | paid | Supporting reseach and public education | 202343069349101129 |
| 2022 | Harder Foundation | Sightline Institute Seattle, WA | C | $25,000 | paid | SMART SOLUTIONS FOR CASCADIAN ENERGY | 202301289349100310 |
| 2022 | Ordinary People Foundation | Sightline Institute Seattle, WA | C | $20,000 | paid | Environmental Protection | 202333209349100643 |
| 2022 | Ordinary People Foundation | Sightline Institute Seattle, WA | C | $20,000 | paid | Environmental Protection | 202413209349108701 |
| 2022 | The Cosman Family Foundation | Sightline Institute Seattle, WA | C | $16,000 | paid | UNRESTRICTED GENERAL | 202331319349102273 |
| 2022 | Washington Progress Fund | Sightline Institute Seattle, WA | A | $15,000 | paid | Democracy Research | 202333099349300468 |
| 2022 | Community Foundation of Collier County Inc | Sightline Institute Seattle, WA | A | $11,000 | paid | PUBLIC, SOCIETAL BENEFIT | 202310879349301116 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Grousemont Foundation | Sightline Institute Seattle, WA | C | $10,000 | paid | GENERAL & UNRESTRICTED | 202303139349101380 |
| 2022 | Sustainable Path Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | To support sustainability in the Puget Sound region. | 202313139349303926 |
| 2022 | Eric Anderson Foundation | Sightline Institute Seattle, WA | C | $10,000 | paid | GENERAL SUPPORT | 202333149349101218 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | New Venture Fund | Sightline Institute Seattle, WA | A | $10,000 | paid | CIVIL RIGHTS, SOCIAL ACTION, ADVOCACY | 202323149349302362 |
| 2022 | Ridge Road Foundation C/O Scott Kim | Sightline Institute Seattle, WA | C | $10,000 | paid | CONTRIBUTION TO BE USED FOR CHARITABLE PURPOSES | 202331359349100303 |
| 2022 | Kaleidoscope Foundation C/O Richards Leeds | Sightline Institute Seattle, WA | C | $9,000 | paid | CONSERVATION - FOSSIL FUEL WORK | 202312839349101221 |
| 2022 | Vanguard Charitable Endowment Program | Sightline Institute Seattle, WA | A | $8,700 | paid | For recipient's exempt purpose | 202331359349303108 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $8,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $7,500 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $7,500 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Laird Norton Family Foundation | Sightline Institute Seattle, WA | C | $5,000 | paid | GENERAL OPERATING SUPPORT | 202303079349100530 |
| 2022 | So Hum Foundation | Sightline Institute Seattle, WA | C | $5,000 | paid | FUNDING TO PUT SMART POLICY SOLUTIONS IN THE HANDS OF DECISION MAKERS. | 202301239349101250 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $5,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $3,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | The Alan J Hirschfield Family Foundation | Sightline Institute Seattle, WA | C | $2,500 | paid | NOTE 1 | 202302579349100220 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Sam and Mary Lawrence Foundation | Sightline Institute Seattle, WA | C | $1,000 | paid | unrestricted | 202331349349100308 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Seattle Foundation | Sightline Institute Seattle, WA | A | $250 | paid | TO PROVIDE GENERAL SUPPORT | 202323149349304782 |
| 2022 | Democracy Works | Sightline Institute Seattle, WA | C | $200 | paid | justice and sustainability | 202321369349100012 |
| 2022 | Amazonsmile Foundation | Sightline Institute Seattle, WA | C | $81 | paid | GENERAL SUPPORT | 202313119349100141 |
| 2021 | Treeline Foundation | Sightline Institute Seattle, WA | C | $100,000 | paid | TO SUPPORT EFFORTS TO ADDRESS CLIMATE CHANGE | 202211879349100321 |
| 2021 | Schwab Charitable Fund | Sightline Institute Seattle, WA | A | $76,350 | paid | ENVIRONMENTAL AND ANIMALS | 202230499349301028 |
| 2021 | Climate Solutions | Sightline Institute Seattle, WA | A | $40,000 | paid | Clean transportation | 202212649349301606 |
| 2021 | Fidelity Investments Charitable Gift Fund | Sightline Institute Seattle, WA | A | $27,150 | paid | For grant recipient's exempt purposes | 202221339349302787 |
| 2021 | Harder Foundation | Sightline Institute Seattle, WA | C | $25,000 | paid | THE THIN GREEN LINE-OPPOSING FOSSIL FUEL | 202201239349100220 |
| 2021 | American Online Giving Foundation Inc | Sightline Institute Seattle, WA | A | $15,184 | paid | GENERAL SUPPORT | 202240469349301419 |
| 2021 | The Cosman Family Foundation | Sightline Institute Seattle, WA | C | $12,000 | paid | UNRESTRICTED GENERAL | 202231189349100113 |
| 2021 | Sustainable Path Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | To support sustainability in the Puget Sound region. | 202211899349301411 |
| 2021 | Community Foundation of Collier County Inc | Sightline Institute Seattle, WA | A | $10,000 | paid | GENERAL FUND | 202230459349300828 |
| 2021 | So Hum Foundation | Sightline Institute Seattle, WA | C | $5,000 | paid | FUNDING TO PUT SMART POLICY SOLUTIONS IN THE HANDS OF DECISION MAKERS. | 202112849349100036 |
| 2021 | The Bank of America Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $2,500 | paid | OPERATIONAL SUPPORT | 202221309349101737 |
| 2021 | The Alan J Hirschfield Family Foundation | Sightline Institute Seattle, WA | C | $2,500 | paid | NOTE 1 | 202210829349100506 |
| 2021 | Sam and Mary Lawrence Foundation | Sightline Institute Seattle, WA | C | $846 | paid | unrestricted | 202211339349102476 |
| 2021 | Democracy Works | Sightline Institute Seattle, WA | C | $100 | paid | education & justice | 202220269349100312 |
| 2020 | Laidir Foundation C/O Brian Lonergan | Sightline Institute Seattle, WA | C | $500,000 | paid | TO FURTHER THE MISSION OF SIGHTLINE INSTITUTE'S HOUSING AND URBANISM PROGRAM. | 202123179349100007 |
| 2020 | The Kaphan Foundation C/O King & Oliason Pllc | Sightline Institute Seattle, WA | C | $380,382 | paid | GENERAL SUPPORT | 202103199349102460 |
| 2020 | The Schmidt Family Foundation | Sightline Institute Seattle, WA | C | $150,000 | paid | GENERAL OPERATING SUPPORT | 202123189349100327 |
| 2020 | Treeline Foundation | Sightline Institute Seattle, WA | C | $100,000 | paid | TO SUPPORT EFFORTS TO ADDRESS CLIMATE CHANGE | 202122309349100212 |
| 2020 | Impactassetsinc | Sightline Institute Seattle, WA | A | $70,000 | paid | GENERAL SUPPORT | 202133199349315428 |
| 2020 | Schwab Charitable Fund | Sightline Institute Seattle, WA | A | $66,950 | paid | ENVIRONMENTAL AND ANIMALS | 202140489349301804 |
| 2020 | The Oregon Community Foundation | Sightline Institute Seattle, WA | A | $60,000 | paid | Environment | 202123159349308512 |
| 2020 | Sc Rain Foundation C/O Sara T Campbell | Sightline Institute Seattle, WA | C | $50,000 | paid | General Purpose | 202133199349107848 |
| 2020 | Stolte Family Foundation | Sightline Institute Seattle, WA | C | $50,000 | paid | FUNDING FOR GENERAL CHARITABLE OPERATIONS | 202113159349100011 |
| 2020 | Tides Foundation | Sightline Institute Seattle, WA | A | $45,000 | paid | SUSTAINABLE ENVIRONMENT | 202133149349300708 |
| 2020 | Laird Norton Family Foundation | Sightline Institute Seattle, WA | C | $40,000 | paid | GENERAL OPERATING SUPPORT | 202133159349100133 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $40,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | American Online Giving Foundation Inc | Sightline Institute Seattle, WA | A | $33,126 | paid | GENERAL SUPPORT | 202120469349300002 |
| 2020 | Fidelity Investments Charitable Gift Fund | Sightline Institute Seattle, WA | A | $31,900 | paid | For grant recipient's exempt purposes | 202121359349300427 |
| 2020 | Harder Foundation | Sightline Institute Seattle, WA | C | $25,000 | paid | THE THIN GREEN LINE-OPPOSING NEW FOSSIL FUEL | 202131179349101793 |
| 2020 | Ordinary People Foundation | Sightline Institute Seattle, WA | C | $20,000 | paid | Environmental protection | 202133209349100508 |
| 2020 | Wiancko Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $18,000 | paid | UNRESTRICTED | 202210189349100501 |
| 2020 | Morgan Stanley Global Impact Funding Trust Inc | Sightline Institute Seattle, WA | A | $12,000 | paid | UNRESTRICTED GENERAL SUPPORT | 202143219349301454 |
| 2020 | The Cosman Family Foundation | Sightline Institute Seattle, WA | C | $12,000 | paid | UNRESTRICTED GENERAL | 202131199349100033 |
| 2020 | Community Foundation of Collier County Inc | Sightline Institute Seattle, WA | A | $10,000 | paid | UNRESTRICTED USE | 202131169349301228 |
| 2020 | Sustainable Path Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | To support sustainability in the Puget Sound region. | 202123009349301927 |
| 2020 | Sb Schaar & Pk Whelpton Foundation C/O Scott Kim | Sightline Institute Seattle, WA | C | $10,000 | paid | CONTRIBUTION TO BE USED FOR CHARITABLE PURPOSES | 202113069349101566 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $7,500 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Kaleidoscope Foundation C/O Richard Leeds | Sightline Institute Seattle, WA | C | $6,000 | paid | CONSERVATION - FOSSIL FUEL WORK | 202122799349101117 |
| 2020 | Meyer Memorial Trust | Sightline Institute Seattle, WA | C | $5,000 | paid | For conference sponsorship and travel scholarships to support YIMBYtown 2020 | 202130469349100718 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $5,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $4,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $4,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | The Winky Foundation C/O Wilmington Trust Co 009226-000 | Sightline Institute Seattle, WA | C | $3,000 | paid | GENERAL AND/OR EDUCATIONAL PURPOSE | 202102949349100510 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | The Alan J Hirschfield Family Foundation | Sightline Institute Seattle, WA | C | $2,500 | paid | NOTE 1 | 202102669349100305 |
| 2020 | Sam and Mary Lawrence Foundation | Sightline Institute Seattle, WA | C | $1,500 | paid | unresticted | 202102119349100300 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Laird Norton Family Foundation | Sightline Institute Seattle, WA | C | $500 | paid | GENERAL OPERATING SUPPORT | 202133159349100133 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $500 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $250 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Seattle Foundation | Sightline Institute Seattle, WA | A | $250 | paid | TO PROVIDE GENERAL SUPPORT. | 202113029349301626 |
| 2020 | Democracy Works | Sightline Institute Seattle, WA | C | $200 | paid | economic democracy | 202100189349100710 |
| 2020 | Amazonsmile Foundation | Sightline Institute Seattle, WA | C | $75 | paid | GENERAL SUPPORT | 202113199349100901 |
| 2019 | Treeline Foundation | Sightline Institute Seattle, WA | C | $100,000 | paid | TO SUPPORT EFFORTS TO ADDRESS CLIMATE CHANGE | 202042529349100059 |
| 2019 | Schwab Charitable Fund | Sightline Institute Seattle, WA | A | $51,600 | paid | ENVIRONMENTAL AND ANIMALS | 202010489349300101 |
| 2019 | Fidelity Investments Charitable Gift Fund | Sightline Institute Seattle, WA | A | $15,975 | paid | For grant recipient's exempt purposes | 202041789349301474 |
| 2019 | Community Foundation of Collier County Inc | Sightline Institute Seattle, WA | A | $10,000 | paid | GENERAL FUND | 202010669349300206 |
| 2019 | Bowline Fund | Sightline Institute Seattle, WA | C | $5,000 | paid | To support the mission of the Sightline Institute | 202001499349100415 |
| 2019 | The Bank of America Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $2,000 | paid | PROGRAM/OPERATING SUPPORT | 202001499349100200 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $100,000 | paid | TO SUPPORT EFFORTS TO ADDRESS CLIMATE CHANGE. | 201912699349301031 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $40,000 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Schwab Charitable Fund | Sightline Institute Seattle, WA | A | $39,000 | paid | ENVIRONMENTAL/ANIMALS | 201930459349302018 |
| 2018 | Fidelity Investments Charitable Gift Fund | Sightline Institute Seattle, WA | A | $17,220 | paid | FOR GRANT RECIPIENT'S EXEMPT PURPOSES | 201931359349301478 |
| 2018 | The Cosman Family Foundation | Sightline Institute Seattle, WA | C | $10,000 | paid | UNRESTRICTED GENERAL | 201912209349100901 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Community Foundation of Collier County Inc | Sightline Institute Seattle, WA | A | $10,000 | paid | GENERAL FUND | 201940109349301569 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $10,000 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Sb Schaar & Pk Whelpton Foundation C/O Dan Kovarik | Sightline Institute Seattle, WA | C | $8,000 | paid | CONTRIBUTION TO BE USED FOR CHARITABLE PURPOSES | 201931919349100603 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $7,500 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $5,000 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $5,000 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Bowline Fund | Sightline Institute Seattle, WA | C | $5,000 | paid | To support the mission of the Sightline Institute | 201931299349101963 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $5,000 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $3,000 | paid | HOMELESS & REAL ESTATE FOCUSED RESEARCH. | 201912699349301031 |
| 2018 | The Alan J Hirschfield Family Foundation | Sightline Institute Seattle, WA | C | $2,500 | paid | NOTE 1 | 201912599349100446 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $2,500 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | The Bank of America Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $1,042 | paid | PROGRAM/OPERATING SUPPORT | 201931349349102143 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $1,000 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | The Greersolien Fund | Sightline Institute Seattle, WA | C | $1,000 | paid | General & Unrestricted | 201931339349102878 |
| 2018 | The Bank of America Charitable Foundation Inc | Sightline Institute Seattle, WA | C | $1,000 | paid | PROGRAM/OPERATING SUPPORT | 201931349349102143 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $500 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $500 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $300 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
| 2018 | Seattle Foundation | Sightline Institute Seattle, WA | A | $200 | paid | TO PROVIDE GENERAL SUPPORT. | 201912699349301031 |
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 inferred and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF and Form 990 Schedule I e-file XML filed by the funders shown; this organization's identity from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The rows as Parquet: manifest.
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.