funder-graph › Recipients
Who funds Potomac Riverkeeper Inc
EIN 54-1982624 · Washington, DC · NTEE C32
Potomac Riverkeeper Inc of Washington, DC (EIN 54-1982624) was named as a grant recipient by 57 funders in 186 grants paid totaling $5,060,096 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
$5,060,096
186 grants paid
Funders
57
distinct grantmakers
Tax years
2018–2025
as reported by funders
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 186 most recent grants naming this organization.
| Tax year | Funder | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|---|
| 2025 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $105,425 | paid | For grant recipient's exempt purposes | 202601389349301700 |
| 2025 | Agua Fundinc | Potomac River Keeper Network Washington, DC | D | $73,000 | paid | FOR GENERAL SUPPORT AND GYBE SATELITE MONITORING | 202642039349100119 |
| 2025 | J William & Helen D Stuart Foundation | Potomac Riverkeeper Network Washington, DC | C | $50,000 | paid | general | 202610999349100216 |
| 2025 | White House Farm Foundation | Potomac Riverkeeper Network Washington, DC | C | $50,000 | paid | TO FURTHER CHARITABLE PURPOSE | 202543199349101304 |
| 2025 | Slade-Betts Foundation for Protection of Wildlife and the Environment | Potomac River Keeper Network Washington, DC | D | $48,535 | paid | PROTECTING WILDLIFE OR THE ENVIRONMENT | 202611279349102836 |
| 2025 | Chesapeake Bay Trust | Potomac Riverkeeper Network Washington, DC | A | $45,600 | paid | COMMUNITY STEWARDSHIP | 202620619349300122 |
| 2025 | Donor Advised Charitable Giving Inc | Potomac Riverkeeper Washington, DC | A | $44,050 | paid | ENVIRONMENTAL AND ANIMALS | 202611199349300601 |
| 2025 | The Morris and Gwendolyn Cafritz Foundation | Potomac Riverkeeper Network Washington, DC | C | $40,000 | paid | ENVRIONMENT | 202513399349100006 |
| 2025 | Vanguard Charitable Endowment Program | Potomac Riverkeeper Inc Washington, DC | A | $37,000 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202621329349306657 |
| 2025 | Greater Washington Community Foundation | Potomac Riverkeeper Network Inc Washington, DC | A | $19,291 | paid | GENERAL SUPPORT | 202640449349302259 |
| 2025 | Foundation for Pennsylvania Watersheds | Potomac Riverkeeper Network Washington, DC | A | $18,000 | paid | ENVIRONMENTAL DEVELO | 202533249349300808 |
| 2025 | Waterkeepers Chesapeake Inc | Potomac Riverkeeper Network Washington, DC | A | $17,500 | paid | TO PROTECT THE WATERS OF THE CHESAPEAKE | 202641879349301049 |
| 2025 | American Online Giving Foundation Inc | Potomac Riverkeeper Inc Washington, DC | A | $14,053 | paid | GENERAL SUPPORT | 202533509349301608 |
| 2025 | American Online Giving Foundation Inc | Potomac Riverkeeper Inc Washington, DC | A | $14,053 | paid | GENERAL SUPPORT | 202641969349302754 |
| 2025 | Carlson Family Foundation C/O John a Norton | Potomac Riverkeeper Inc Washington, DC | B | $11,000 | paid | MAJOR GRANT, MATCHING GRANT | 202611319349102731 |
| 2025 | Raymond James Charitable Endowment Fund | Potomac Riverkeeper Incorporated Washington, DC | A | $10,100 | paid | GENERAL SUPPORT | 202630489349300743 |
| 2025 | Strong Foundation of New York | Potomac Riverkeeper Network Washignton, DC | C | $10,000 | paid | GENERAL SUPPORT | 202542189349100104 |
| 2025 | Patagoniaorg | Potomac Riverkeeper Network Washington, DC | C | $10,000 | paid | TO SUPPORT ENVIRONMENTAL PROJECTS. | 202640719349100529 |
| 2025 | The Moody Family Foundation | Potomac Riverkeeper Network Washington, DC | C | $7,500 | paid | SUPPORT THE GENERAL CHARITABLE OPERATIONS OF THE ORGANIZATION | 202601339349103150 |
| 2025 | Earthshare Chapters Inc | Potomac Riverkeeper Network Washington, DC | A | $6,945 | paid | GENERAL OPERATIONS | 202630429349301768 |
| 2025 | Scott a & Phyllis P Crabtree Family Foundation Inc | Potomac River Keepers Washington, DC | C | $5,000 | paid | POTOMAC RIVER CLEANUP | 202611329349101226 |
| 2025 | The Elmo Foundation | Potomac Riverkeeper Inc Washington, DC | B | $5,000 | paid | ENVIRONMENT | 202621199349100927 |
| 2025 | Boer Family Foundation Inc | Potomac Riverkeeper Network Washington, DC | C | $1,250 | paid | GENERAL | 202641599349100404 |
| 2025 | Farview Foundation | Potomac Riverkeeper Washington, DC | B | $1,000 | paid | GENERAL OPERATING | 202533189349100538 |
| 2025 | The Charles and Elizabeth Barr Foundation | Potomac Riverkeeper Network Washington, DC | C | $1,000 | paid | TO STOP POLLUTION AND RESTORE CLEAN WATER IN THE POTOMAC AND SHENANDOAH RIVERS | 202621339349100432 |
| 2025 | The Sidley Austin Foundation C/O Timothy F Bergen | Potomac Riverkeeper Inc Washington, DC | B | $200 | paid | GENERAL SUPPORT | 202601329349103320 |
| 2024 | The Peterson Family Foundation Inc | Potomac Riverkeeper Inc Washington, DC | B | $136,000 | paid | GENERAL SUPPORT | 202502309349100205 |
| 2024 | The Keith Campbell Foundation for the Environment Inc | Potomac Riverkeeper Incorporated Washington, DC | B | $135,000 | paid | GENERAL SUPPORT | 202513189349105551 |
| 2024 | Agua Fundinc | Potomac River Keeper Network Washington, DC | D | $106,000 | paid | FOR GENERAL SUPPORT AND GYBE SATELITE MONITORING | 202521989349100817 |
| 2024 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $75,200 | paid | For grant recipient's exempt purposes | 202521349349310887 |
| 2024 | Energy Action Fund | Potomac Riverkeeper Inc Washington, DC | A | $65,000 | paid | TO SUPPORT CLEAN ENERGY POLICY ADVANCEMENT IN THE STATES. | 202533099349303248 |
| 2024 | Vanguard Charitable Endowment Program | Potomac Riverkeeper Incorporated Washington, DC | A | $56,000 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202511349349313096 |
| 2024 | J William & Helen D Stuart Foundation | Potomac Riverkeeper Network Washington, DC | C | $50,000 | paid | general | 202521339349103812 |
| 2024 | Slade-Betts Foundation for Protection of Wildlife and the Environment | Potomac River Keeper Network Washington, DC | D | $42,673 | paid | PROTECTING WILDLIFE OR THE ENVIRONMENT | 202541209349102109 |
| 2024 | The Morris and Gwendolyn Cafritz Foundation | Potomac Riverkeeper Inc Washington, DC | B | $40,000 | paid | ENVIRONMENT | 202433189349102663 |
| 2024 | Donor Advised Charitable Giving Inc | Potomac Riverkeeper Washington, DC | A | $38,864 | paid | ENVIRONMENTAL AND ANIMALS | 202541069349300729 |
| 2024 | Carlson Family Foundation C/O John a Norton | Potomac Riverkeeper Inc Washington, DC | B | $35,000 | paid | MAJOR GRANT | 202501009349101405 |
| 2024 | Virginia Environmental Endowment | Potomac Riverkeeper Network Washington, DC | A | $30,000 | paid | VIRGINIA COAL ASH WORK | 202422089349300607 |
| 2024 | White House Farm Foundation | Potomac Riverkeeper Network Washington, DC | C | $27,500 | paid | TO FURTHER CHARITABLE PURPOSE | 202442699349101659 |
| 2024 | Frederick Henry Prince Testamentary Trust | Potomac Riverkeeper Inc Washington, DC | B | $20,000 | paid | general operating support | 202503109349101135 |
| 2024 | Greater Washington Community Foundation | Potomac Riverkeeper Network Inc Washington, DC | A | $19,418 | paid | General Support | 202520389349300807 |
| 2024 | Raymond James Charitable Endowment Fund | Potomac Riverkeeper Incorporated Washington, DC | A | $15,000 | paid | GENERAL SUPPORT | 202520499349301607 |
| 2024 | Foundation for Pennsylvania Watersheds | Potomac Riverkeeper Network Washington, DC | A | $15,000 | paid | 202510209349301416 | |
| 2024 | Farview Foundation | Potomac Riverkeeper Washington, DC | B | $13,000 | paid | GENERAL OPERATING | 202503009349100130 |
| 2024 | American Online Giving Foundation Inc | Potomac Riverkeeper Inc Washington, DC | A | $11,570 | paid | GENERAL SUPPORT | 202530159349302758 |
| 2024 | Patagoniaorg | Potomac Riverkeeper Network Washington, DC | C | $11,250 | paid | TO SUPPORT ENVIRONMENTAL PROJECTS. | 202510769349101026 |
| 2024 | American Endowment Foundation | Potomac Riverkeeper Inc Washington, DC | A | $11,000 | paid | ENVIRONMENTAL | 202513219349310376 |
| 2024 | The Chicago Community Trust | Potomac Riverkeeper Incorporated Berryville, VA | A | $10,000 | paid | General support for programs, operations and other charitable purposes | 202512119349301861 |
| 2024 | Strong Foundation of New York | Potomac Riverkeeper Network Washignton, DC | C | $10,000 | paid | GENERAL SUPPORT | 202442269349100009 |
| 2024 | The Moody Family Foundation | Potomac Riverkeeper Network Washington, DC | C | $7,500 | paid | SUPPORT THE GENERAL CHARITABLE OPERATIONS OF THE ORGANIZATION | 202541359349100629 |
| 2024 | The Keith Campbell Foundation for the Environment Inc | Potomac Riverkeeper Incorporated Washington, DC | B | $6,630 | paid | WQ MONITORING EQUIPMENT AND HARDWARE | 202513189349105551 |
| 2024 | The Keith Campbell Foundation for the Environment Inc | Potomac Riverkeeper Incorporated Washington, DC | B | $5,000 | paid | BUILDING CAPACITY THROUGH A DEIJ LENS | 202513189349105551 |
| 2024 | The Robert Bensen Meyer Jr Foundation Inc | Potomac River Keepers Washington, DC | C | $2,500 | paid | GENERAL SUPPORT | 202502609349100405 |
| 2024 | The Old Dominion Boat Club Foundation | Potomac Riverkeeper Network Washington, DC | C | $2,500 | paid | PROTECTION OF CLEAN WATER FOR ALL COMMUNITITES AND ALL THOSE WHO LIVE IN AND RELY UPON THE POTOMAC AND SHENANDOAH WATERSHEDS. | 202503179349102585 |
| 2024 | The Stebbins Fund Inc | Potomac Riverkeeper Network Washington, DC | C | $2,000 | paid | GENERAL | 202501569349101255 |
| 2024 | Farview Foundation | Potomac Riverkeeper Washington, DC | B | $1,000 | paid | GENERAL OPERATING | 202503009349100130 |
| 2024 | The Ottowhalley Family Foundation Inc C/O Metropolitan Agents Inc | Potomac Riverkeepers Washington, DC | C | $1,000 | paid | GENERAL OPERATING SUPPORT | 202500999349100215 |
| 2024 | The Charles and Elizabeth Barr Foundation | Potomac Riverkeeper Network Washington, DC | C | $1,000 | paid | TO STOP POLLUTION AND RESTORE CLEAN WATER IN THE POTOMAC AND SHENANDOAH RIVERS | 202530999349100613 |
| 2023 | The Keith Campbell Foundation for the Environment Inc | Potomac Riverkeeper Incorporated Washington, DC | B | $135,000 | paid | GENERAL SUPPORT | 202403209349105695 |
| 2023 | Agua Fundinc | Potomac River Keeper Network Washington, DC | D | $100,000 | paid | FOR GENERAL SUPPORT | 202402989349100025 |
| 2023 | The Oak Hill Fund | Potomac Riverkeeper Inc Washington, DC | B | $90,000 | paid | CONTINUED SUPPORT FOR 1) ENFORCEMENT ACTIONS AGAINST POLLUTION PERMIT INFRACTIONS AND UNPERMITTED DISCHARGES; 2) INVESTIGATION OF AND TAILORED RESPONSES TO POLLUTION HAZARDS IDENTIFIED THROUGH PATROLLING OUR WATERWAYS; 3) OUR ANNUAL RIVERPALOOZA AND RIOPALOOZA WATER STEWARDSHIP EVENTS; AND 4) OUTREACH TO AND MOBILIZATION OF MEMBERS AND IMPACTED COMMUNITIES. | 202441649349100304 |
| 2023 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $85,084 | paid | For grant recipient's exempt purposes | 202441369349301334 |
| 2023 | The Peterson Family Foundation Inc | Potomac Riverkeeper Inc Washington, DC | B | $65,000 | paid | POTOMAC RIVERKEEPER INC. | 202413209349104571 |
| 2023 | Vanguard Charitable Endowment Program | Potomac Riverkeeper Inc Washington, DC | A | $36,500 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202441359349309439 |
| 2023 | The Morris and Gwendolyn Cafritz Foundation | Potomac Riverkeeper Inc Washington, DC | B | $35,000 | paid | ENVIRONMENT | 202343479349100759 |
| 2023 | J William & Helen D Stuart Foundation | Potomac Riverkeeper Network Washington, DC | C | $30,000 | paid | general | 202401359349103505 |
| 2023 | Schwab Charitable Fund | Potomac Riverkeeper Washington, DC | A | $27,825 | paid | ENVIRONMENTAL AND ANIMALS | 202411039349301716 |
| 2023 | Frederick Henry Prince Testamentary Trust | Potomac Riverkeeper Inc Washington, DC | B | $25,000 | paid | general operating support | 202403129349102225 |
| 2023 | American Online Giving Foundation Inc | Potomac Riverkeeper Inc Washington, DC | A | $24,844 | paid | GENERAL SUPPORT | 202410469349300741 |
| 2023 | Greater Washington Community Foundation | Potomac Riverkeeper Network Inc Washington, DC | A | $19,255 | paid | General Support | 202411989349301411 |
| 2023 | Carlson Family Foundation C/O John a Norton | Potomac Riverkeeper Inc Washington, DC | B | $17,000 | paid | MAJOR GRANT, MATCHING GRANT | 202431359349103218 |
| 2023 | Slade-Betts Foundation for Protection of Wildlife and the Environment | Potomac River Keeper Network Washington, DC | D | $16,000 | paid | PROTECTING WILDLIFE OR THE ENVIRONMENT | 202411279349102351 |
| 2023 | Foundation for Pennsylvania Watersheds | Potomac Riverkeeper Network Washington, DC | A | $15,000 | paid | UPPER NORTH BRANCH P | 202313179349306081 |
| 2023 | White House Farm Foundation | Potomac Riverkeeper Network Washington, DC | C | $12,380 | paid | TO FURTHER CHARITABLE PURPOSE | 202342909349100124 |
| 2023 | The Blackbaud Giving Fund | Potomac Riverkeeper Inc Washington, DC | B | $11,819 | paid | GENERAL SUPPORT | 202402119349300860 |
| 2023 | American Endowment Foundation | Potomac Riverkeeper Inc Washington, DC | A | $11,000 | paid | ENVIRONMENTAL | 202442479349301654 |
| 2023 | Strong Foundation of New York | Potomac Riverkeeper Network Washington, DC | C | $7,000 | paid | GENERAL SUPPORT | 202311789349100626 |
| 2023 | The Moody Family Foundation | Potomac Riverkeeper Network Washington, DC | C | $6,600 | paid | SUPPORT THE GENERAL CHARITABLE OPERATIONS OF THE ORGANIZATION | 202401729349100310 |
| 2023 | The Keith Campbell Foundation for the Environment Inc | Potomac Riverkeeper Incorporated Washington, DC | B | $6,000 | paid | WATER QUALITY MONITORING EQUIPMENT | 202403209349105695 |
| 2023 | Waterkeepers Chesapeake Inc | Potomac Riverkeeper Network Washington, DC | A | $5,000 | paid | CONOWINGO DAM PROJECT | 202433189349303598 |
| 2023 | David & Lorna Gladstone Foundation | Potomac Riverkeeper Network Washington, DC | C | $2,500 | paid | CARRYING ON CHARITABLE PURPOSES OF EXEMPT ORGANIZATION | 202303179349101365 |
| 2023 | The Robert Bensen Meyer Jr Foundation Inc | Potomac River Keepers Washington, DC | C | $2,000 | paid | GENERAL SUPPORT | 202441359349105544 |
| 2023 | Capital Community Partners | Potomac Riverkeeper Washington, DC | B | $2,000 | paid | TO CLEAN THE POTOMAC RIVER | 202410379349100506 |
| 2023 | The Stebbins Fund Inc C/O Sacks Press & Lacher Pc | Potomac Riverkeeper Network Washington, DC | C | $1,000 | paid | GENERAL | 202401369349103965 |
| 2023 | Farview Foundation | Potomac Riverkeeper Washington, DC | B | $1,000 | paid | GENERAL OPERATING | 202313189349103241 |
| 2023 | The Ottowhalley Family Foundation Inc Metropolitan Agents Inc | Potomac Riverkeepers Washington, DC | C | $1,000 | paid | GENERAL OPERATING SUPPORT | 202411319349102516 |
| 2023 | The Downstream Project | Potomac Riverkeeper Inc Washington, DC | A | $315 | paid | GENERAL OPERATIONS | 202400469349301430 |
| 2023 | The Sidley Austin Foundation C/O Timothy F Bergen | Potomac Riverkeeper Inc Washington, DC | B | $200 | paid | GENERAL SUPPORT | 202411319349102221 |
| 2023 | Amazonsmile Foundation | Potomac Riverkeeper Incorporated Washington DC, DC | B | $58 | paid | GENERAL SUPPORT | 202540919349100629 |
| 2022 | The Keith Campbell Foundation for the Environment Inc | Potomac Riverkeeper Incorporated Washington, DC | B | $135,000 | paid | GENERAL SUPPORT | 202333199349102998 |
| 2022 | The Oak Hill Fund | Potomac Riverkeeper Inc Washington, DC | B | $100,000 | paid | TO SUPPORT 1) ENFORCEMENT ACTIONS AGAINST POLLUTION PERMIT INFRACTIONS AND UNPERMITTED DISCHARGES; 2) INVESTIGATION OF AND RESPONSES TO POLLUTION HAZARDS IDENTIFIED THROUGH PATROLLING; 3) ANNUAL WATER STEWARDSHIP EVENTS; AND 4) OUTREACH TO AND MOBILIZATION OF MEMBERS AND IMPACTED COMMUNITIES. | 202342489349100414 |
| 2022 | Agua Fundinc | Potomac River Keeper Network Washington, DC | D | $80,000 | paid | FOR GENERAL SUPPORT | 202301879349101400 |
| 2022 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $77,425 | paid | For grant recipient's exempt purposes | 202321309349304807 |
| 2022 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $77,425 | paid | For grant recipient's exempt purposes | 202430459349302913 |
| 2022 | The Peterson Family Foundation Inc | Potomac Riverkeeper Inc Washington, DC | B | $75,000 | paid | GENERAL SUPPORT | 202343189349100829 |
| 2022 | Vanguard Charitable Endowment Program | Potomac Riverkeeper Incorporated Washington, DC | A | $67,000 | paid | For recipient's exempt purpose | 202331359349303108 |
| 2022 | The Schmidt Family Foundation | Potomac Riverkeeper Incorporated Washington, DC | B | $50,000 | paid | OCEAN STEWARDSHIP AND RESEARCH | 202333199349108523 |
| 2022 | White House Farm Foundation | Potomac Riverkeeper Network Washington, DC | C | $40,500 | paid | TO FURTHER CHARITABLE PURPOSE | 202232779349100703 |
| 2022 | Schwab Charitable Fund | Potomac Riverkeeper Washington, DC | A | $36,450 | paid | ENVIRONMENTAL AND ANIMALS | 202330939349300403 |
| 2022 | Carlson Family Foundation C/O John a Norton | Potomac Riverkeeper Inc Washington, DC | B | $34,000 | paid | MAJOR GRANT | 202312899349101106 |
| 2022 | Greater Washington Community Foundation | Potomac Riverkeeper Network Inc Washington, DC | A | $33,318 | paid | GENERAL SUPPORT | 202310469349302316 |
| 2022 | Slade-Betts Foundation for Protection of Wildlife and the Environment | Potomac River Keeper Network Washington, DC | D | $30,000 | paid | GENERAL FUND | 202301329349103310 |
| 2022 | J William & Helen D Stuart Foundation C/O Bruce a Rosenfield Esquire | Potomac Riverkeeper Network Washington, DC | C | $30,000 | paid | CLEAN WATER PROTECTION | 202341079349100819 |
| 2022 | Frederick Henry Prince Testamentary Trust | Potomac Riverkeeper Inc Washington, DC | B | $30,000 | paid | general operating support | 202313199349107076 |
| 2022 | Agua Fundinc | Potomac Riverkeeper Network Washington, DC | D | $20,000 | paid | FOR GENERAL SUPPORT | 202301879349101400 |
| 2022 | Waterkeepers Chesapeake Inc | Potomac Riverkeeper Washtingon, DC | A | $10,416 | paid | 202323069349302412 | |
| 2022 | American Endowment Foundation | Potomac Riverkeeper Inc Washington, DC | A | $10,000 | paid | ENVIRONMENTAL | 202332499349300338 |
| 2022 | American Online Giving Foundation Inc | Potomac Riverkeeper Inc Washington, DC | A | $9,966 | paid | GENERAL SUPPORT | 202340469349301209 |
| 2022 | Waterkeeper Alliance Inc | Potomac Riverkeeper Network Buffalo, NY | A | $9,500 | paid | GRANT | 202331309349305803 |
| 2022 | Foundation for Pennsylvania Watersheds | Potomac Riverkeeper Network Washington, DC | A | $8,000 | paid | UPPER NORTH BRANCH P | 202310209349300911 |
| 2022 | The Bancroft Foundation Inc | Potomac Riverkeeper Washington, DC | A | $7,500 | paid | GENERAL SUPPORT | 202341249349302559 |
| 2022 | The Moody Family Foundation | Potomac Riverkeeper Network Washington, DC | C | $6,750 | paid | SUPPORT THE GENERAL CHARITABLE OPERATIONS OF THE ORGANIZATION | 202343199349108899 |
| 2022 | Earthshare Chapters Inc | Potomac Riverkeeper Network Washington, DC | A | $5,424 | paid | WORKPLACE GIVING | 202301309349306055 |
| 2022 | Strong Foundation of New York | Potomac Riverkeeper Network Washington, DC | C | $5,000 | paid | GENERAL SUPPORT | 202231789349100603 |
| 2022 | Wolf Run Foundation Inc | Potomac River Keepers Washington, DC | C | $5,000 | paid | PUBLIC CHARITY | 202341359349102864 |
| 2022 | The Miller-Wehrle Family Foundation | Potomac River Keepers Washington, DC | C | $5,000 | paid | UNRESTRICTED | 202331649349100713 |
| 2022 | Weil Gotshal & Manges Foundation Inc | Potomac Riverkeeper Network Washington, DC | C | $2,500 | paid | SUPPORT OF THE 2021 PARTY ON THE PIER EVENT | 202303189349105260 |
| 2022 | Capital Community Partners | Potomac Riverkeeper Washington, DC | B | $1,500 | paid | TO CLEAN THE POTOMAC RIVER | 202310969349100021 |
| 2022 | Farview Foundation | Potomac Riverkeeper Washington, DC | B | $1,000 | paid | GENERAL OPERATING | 202321319349105227 |
| 2022 | Boer Family Foundation Inc | Potomac River Keepers Network Washington, DC | D | $500 | paid | GENERAL | 202341329349100629 |
| 2022 | The Sidley Austin Foundation C/O Timothy F Bergen | Potomac Riverkeeper Inc Washington, DC | B | $200 | paid | GENERAL SUPPORT | 202321339349100602 |
| 2022 | The Rockefeller Foundation | Potomac Riverkeeper Inc Washington, DC | B | $150 | paid | MATCHING GIFT PROGRAM - FOR GENERAL SUPPORT OF ITS MISSION | 202313189349101641 |
| 2022 | Amazonsmile Foundation | Potomac Riverkeeper Incorporated Washington DC, DC | B | $69 | paid | GENERAL SUPPORT | 202313119349100141 |
| 2021 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $173,450 | paid | For grant recipient's exempt purposes | 202221339349302787 |
| 2021 | Agua Fundinc | Potomac Riverkeeper Network Washington, DC | D | $80,000 | paid | FOR GENERAL SUPPORT | 202222799349100112 |
| 2021 | Greater Washington Community Foundation | Potomac Riverkeeper Network Washington, DC | A | $43,079 | paid | general support | 202240469349302029 |
| 2021 | Schwab Charitable Fund | Potomac Riverkeeper Washington, DC | A | $32,950 | paid | ENVIRONMENTAL AND ANIMALS | 202230499349301028 |
| 2021 | J William & Helen D Stuart Foundation C/O Bruce a Rosenfield Esquire | Potomac Riverkeeper Network Washington, DC | C | $30,000 | paid | CLEAN WATER PROTECTION | 202220709349100142 |
| 2021 | The Morris and Gwendolyn Cafritz Foundation | Potomac Riverkeeper Inc Washington, DC | B | $30,000 | paid | ENVIRONMENT | 202112889349101026 |
| 2021 | Slade-Betts Foundation for Protection of Wildlife and the Environment | Potomac River Keeper Network Washington, DC | D | $21,200 | paid | GENERAL FUND | 202230899349100718 |
| 2021 | Carlson Family Foundation C/O John a Norton | Potomac Riverkeeper Inc Washington, DC | C | $20,000 | paid | MAJOR GRANT | 202231319349102103 |
| 2021 | White House Farm Foundation | Potomac Riverkeeper Network Washington, DC | C | $20,000 | paid | TO FURTHER CHARITABLE PURPOSE | 202201039349100915 |
| 2021 | Vanguard Charitable Endowment Program | Potomac Riverkeeper Inc Washington, DC | A | $12,500 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202211339349310116 |
| 2021 | The Bancroft Foundation Inc | Potomac Riverkeeper Washington, DC | A | $10,000 | paid | GENERAL SUPPORT | 202211339349307536 |
| 2021 | Waterkeeper Alliance Inc | Potomac Riverkeeper Washington, DC | A | $9,500 | paid | GRANT | 202201319349305325 |
| 2021 | American Online Giving Foundation Inc | Potomac Riverkeeper Inc Washington, DC | A | $9,296 | paid | GENERAL SUPPORT | 202240469349301419 |
| 2021 | Earthshare Chapters Inc | Potomac Riverkeeper Washington, DC | A | $8,946 | paid | WORKPLACE GIVING | 202220859349300907 |
| 2021 | The Morris and Gwendolyn Cafritz Foundation | Potomac Riverkeeper Inc Washington, DC | B | $5,000 | paid | ENVIRONMENT | 202112889349101026 |
| 2021 | The Steele Family Foundation C/O Ronald W Steele | Potomac River Keeper Washington, DC | C | $3,000 | paid | PROTECT THE POTOMAC RIVER AND ITS TRIBUTARIES | 202211879349100101 |
| 2021 | Strong Foundation of New York | Potomac Riverkeeper Network Washington, DC | C | $2,500 | paid | GENERAL SUPPORT | 202122079349100112 |
| 2021 | Capital Community Partners | Potomac Riverkeeper Washington, DC | B | $1,500 | paid | TO CLEAN THE POTOMAC RIVER | 202201329349103800 |
| 2021 | Farview Foundation | Potomac Riverkeeper Washington, DC | B | $1,000 | paid | GENERAL OPERATING | 202201339349101815 |
| 2020 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $161,623 | paid | For grant recipient's exempt purposes | 202121359349300427 |
| 2020 | The Keith Campbell Foundation for the Environment Inc | Potomac Riverkeeper Incorporated Washington, DC | B | $135,000 | paid | GENERAL SUPPORT | 202143169349105024 |
| 2020 | Agua Fundinc | Potomac Riverkeeper Network Washington, DC | D | $100,000 | paid | FOR GENERAL SUPPORT | 202132219349100808 |
| 2020 | Slade-Betts Foundation for Protection of Wildlife and the Environment | Potomac River Keeper Network Washington, DC | D | $50,000 | paid | PROTECT THE PUBLIC'S RIGHT TO CLEAN WATER | 202103139349100015 |
| 2020 | The Peterson Family Foundation Inc | Potomac Riverkeeper Inc Washington, DC | B | $40,000 | paid | GENERAL SUPPORT | 202103199349104660 |
| 2020 | Greater Washington Community Foundation | Potomac Riverkeeper Network Washington, DC | A | $27,860 | paid | 202120429349300632 | |
| 2020 | National Marine Sanctuary Foundation | Potomac Riverkeeper Network Washington, DC | A | $25,000 | paid | TO EXPAND THE POTOMAC RIVERKEEPERS CITIZEN SCIENCE WATER QUALITY MONITORING PROGRAM TO INCLUDE THE WATERS IN MALLOWS BAY-POTOMAC RIVER | 202142729349301514 |
| 2020 | Frederick Henry Prince Testamentary Trust | Potomac Riverkeeper Inc Washington, DC | B | $25,000 | paid | general operating support | 202113159349103871 |
| 2020 | Carlson Family Foundation Inc C/O John a Norton | Potomac Riverkeeper Inc Washington, DC | C | $20,000 | paid | MAJOR GRANT | 202111329349102456 |
| 2020 | Virginia Environmental Endowment | Potomac Riverkeeper Network Washington, DC | A | $15,000 | paid | VIRGINIANS FOR SWIMMABLE WATERWAYS | 202012069349300341 |
| 2020 | Greater Washington Community Foundation | Potomac Riverkeeper Network Inc Washington, DC | A | $15,000 | paid | 202120429349300632 | |
| 2020 | The Bancroft Foundation Inc | Potomac Riverkeeper Washington, DC | A | $12,500 | paid | GENERAL SUPPORT | 202132949349301823 |
| 2020 | Paypal Charitable Giving Fund | Potomac Riverkeeper Network Washington, DC | A | $11,436 | paid | General Support | 202123009349302102 |
| 2020 | Waterkeeper Alliance Inc | Potomac Riverkeeper Network Washington, DC | A | $10,500 | paid | GRANT | 202101329349302345 |
| 2020 | Schwab Charitable Fund | Potomac Riverkeeper Washington, DC | A | $10,100 | paid | ENVIRONMENTAL AND ANIMALS | 202140489349301804 |
| 2020 | Foundation Earth | Potomac Riverkeeper Washington, DC | A | $10,000 | paid | General support | 202102489349300055 |
| 2020 | Earthshare Chapters Inc | Potomac Riverkeeper Washington, DC | A | $5,883 | paid | WORKPLACE GIVING | 202101109349300525 |
| 2020 | American Endowment Foundation | Potomac Riverkeeper Inc Washington, DC | A | $5,000 | paid | PROGRAMS | 202133159349308163 |
| 2020 | The Keith Campbell Foundation for the Environment Inc | Potomac Riverkeeper Incorporated Washington, DC | B | $2,602 | paid | VALUE ADDED MONITORING EQUIPMENT | 202143169349105024 |
| 2020 | Weil Gotshal & Manges Foundation Inc | Potomac Riverkeeper Network Washington, DC | C | $2,500 | paid | FELLOWSHIPS | 202143199349102924 |
| 2020 | Strong Foundation of New York | Potomac Riverkeeper Network Washington, DC | C | $2,000 | paid | GENERAL SUPPORT | 202002259349100500 |
| 2020 | Dun Foundation | Potomac Riverkeeper Washington, DC | B | $1,000 | paid | PUBLIC CHARITY | 202101329349101630 |
| 2020 | Dun Foundation | Potomac Riverkeeper Washington, DC | B | $500 | paid | PUBLIC CHARITY | 202101329349101630 |
| 2020 | Amazonsmile Foundation | Potomac Riverkeeper Incorporated Washington DC, DC | B | $71 | paid | GENERAL SUPPORT | 202113199349100901 |
| 2019 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $95,350 | paid | For grant recipient's exempt purposes | 202041789349301474 |
| 2019 | Greater Washington Community Foundation | Potomac Riverkeeper Network Washington, DC | A | $42,579 | paid | General Support building | 202010429349300521 |
| 2019 | Foundation Earth | Potomac Riverkeeper Washington, DC | A | $27,000 | paid | General support | 202030839349300513 |
| 2019 | Earthshare Chapters Inc | Potomac Riverkeeper Washington, DC | A | $12,865 | paid | WORKPLACE GIVING | 202000839349300350 |
| 2019 | Schwab Charitable Fund | Potomac Riverkeeper Washington, DC | A | $11,350 | paid | ENVIRONMENTAL AND ANIMALS | 202010489349300101 |
| 2019 | Land Family Foundation Trust | Potomac Riverkeeper Network Washington, DC | C | $5,000 | paid | BACTERIA-MONITORING LAB EQUIPTMENT | 202011399349100311 |
| 2019 | The Steele Family Foundation C/O Ronald W Steele | Potomac River Keeper Washington, DC | C | $2,000 | paid | PROTECT THE POTOMAC RIVER AND ITS TRIBUTARIES | 202032389349100513 |
| 2019 | Strong Foundation of New York | Potomac Riverkeeper Network Washington, DC | C | $1,500 | paid | GENERAL SUPPORT | 201912259349100806 |
| 2019 | White House Farm Foundation C/O Scott C Plein | Potomac Riverkeeper Network Washington, DC | C | $755 | paid | TO FURTHER CHARITABLE PURPOSE | 202040079349100104 |
| 2019 | The Wenger Family Foundation | Potomac Riverkeeper Network Washington, DC | C | $250 | paid | General Purposes | 201902529349100315 |
| 2018 | Fidelity Investments Charitable Gift Fund | Potomac Riverkeeper Inc Washington, DC | A | $124,000 | paid | FOR GRANT RECIPIENT'S EXEMPT PURPOSES | 201931359349301478 |
| 2018 | Greater Washington Community Foundation | Potomac Riverkeeper Network Washington, DC | A | $38,703 | paid | General Support building | 201910459349300646 |
| 2018 | Schwab Charitable Fund | Potomac Riverkeeper Washington, DC | A | $16,900 | paid | ENVIRONMENTAL/ANIMALS | 201930459349302018 |
| 2018 | Waterkeeper Alliance Inc | Potomac Riverkeeper Network Washington, DC | A | $15,250 | paid | GRANT & SCHOLARSHIP | 201941359349303969 |
| 2018 | Earthshare Chapters Inc | Potomac Riverkeeper Network Washington, DC | A | $8,618 | paid | WORKPLACE GIVING | 201910829349300011 |
| 2018 | The Miller-Wehrle Family Foundation | Potomac Riverkeeper Network Washington, DC | C | $5,000 | paid | UNRESTRICTED | 201902749349100800 |
| 2018 | Wolf Run Foundation Inc | Potomac River Keepers Washington, DC | C | $5,000 | paid | PUBLIC CHARITY | 201911339349100726 |
| 2018 | The Bank of America Charitable Foundation Inc | Potomac Riverkeeper Inc Washington, DC | B | $500 | paid | PROGRAM/OPERATING SUPPORT | 201931349349102143 |
| 2018 | The Bank of America Charitable Foundation Inc | Potomac Riverkeeper Inc Washington, DC | B | $500 | paid | PROGRAM/OPERATING SUPPORT | 201931349349102143 |
| 2018 | Boer Family Foundation Inc | Potomac Riverkeeper Network Washington, DC | C | $400 | paid | GENERAL | 201922749349100007 |
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.