ein,name,tax_period,posting_year,city,state,ntee_code,total_revenue,contributions,program_revenue,total_expenses,program_expenses,fundraising_expenses,salaries_total,highest_paid,highest_paid_name,employees,volunteers,donation_share_pct,program_ratio_pct
223232968,CARY INSTITUTE OF ECOSYSTEM STUDIES INC,2025-06-30,2026,Millbrook,NY,C05,30981844,9856437,234860,18220907,13756986,683151,9798363,401805,JOSHUA R GINSBERG,121,42,31.8,75.5
825026325,CLEARPATH INC,2025-12-31,2026,Washington,DC,C05,26628921,26236943,0,19771980,16373929,589854,9264006,711755,JEREMY HARRELL,83,5,98.5,82.8
923384115,THE NEW YORK CLIMATE EXCHANGE INC,2025-06-30,2026,New York,NY,C05,21197671,20286819,20250,7809246,4924245,1649939,5142246,439677,STEPHEN HAMMER,25,75,95.7,63.1
942951373,San Francisco Estuary Institute,2025-06-30,2026,Richmond,CA,C05,19594340,134388,19378788,19110723,15687567,0,11686052,182526,Warner Chabot,99,15,0.7,82.1
541892252,CENTER FOR CLIMATE AND ENERGY SOLUTIONS INC,2025-03-31,2026,Washington,DC,C05,18710584,17662436,207846,20611639,18385750,332493,7839393,529164,NATHANIEL KEOHANE,54,0,94.4,89.2
455146805,APPAREL IMPACT INSTITUTE,2025-12-31,2026,Oakland,CA,C05,16755200,11251818,5007809,11802136,9063263,208495,4078099,312927,LEWIS PERKINS,10,7,67.2,76.8
042609788,CENTER FOR COASTAL STUDIES INC,2025-12-31,2026,Provincetown,MA,C05,16321032,15896754,0,8581191,6674578,1176655,5185147,174815,RICHARD DELANEY,72,,97.4,77.8
263106566,GOODPOWER EDUCATION FUND INC,2025-06-30,2025,Boston,MA,C05,14278134,13739352,480000,18389216,15807611,946775,6760428,249761,LEAH QUSBA,0,100,96.2,86.0
680401509,NEW BUILDINGS INSTITUTE,2025-06-30,2026,Portland,OR,C05,10334496,3293203,7035505,8302740,7092640,172375,4788326,220334,RALPH DINOLA,54,13,31.9,85.4
821659823,CENTER FOR CLIMATE INTEGRITY,2025-12-31,2026,Washington,DC,C05,9922490,9749497,0,7688883,6671960,222223,5257417,364990,RICHARD WILES,35,3,98.3,86.8
010515381,BIODIVERSITY RESEARCH INSTITUTE,2025-04-30,2026,Portland,ME,C05,9831598,356300,9026733,8987138,6039005,0,6174369,339941,DR DAVID EVERS,90,5,3.6,67.2
823815628,AMERICAN CONSERVATION COALITION INC,2025-12-31,2026,Washington,DC,C05,7424795,7316815,0,6389569,4749602,591807,2840932,191800,DANIELLE FRANZ,34,1500,98.5,74.3
840688506,KEYSTONE CENTER,2025-12-31,2026,Keystone,CO,C05,7414788,4541134,2428819,7183497,5633313,247364,3799515,255497,CHRISTINE SCANLAN,28,0,61.2,78.4
270038938,SMART GROWTH AMERICA,2025-06-30,2026,Washington,DC,C05,7203795,5395169,1803108,8484848,6624173,1083,4224376,288500,CALVIN GLADNEY,43,10,74.9,78.1
134339865,ENVIRONMENT AMERICA RESEARCH AND POLICY,2025-06-30,2026,Denver,CO,C05,6390013,5977166,26276,5696864,4448331,354335,1200894,0,WENDY WENDLANDT,0,5,93.5,78.1
330147824,SOCIETY FOR CONSERVATION BIOLOGY,2025-12-31,2026,Washington,DC,C05,4182998,2281547,1537234,3676090,2991230,0,1103246,193274,WARREN SANDER,10,11,54.5,81.4
954604782,Amazon Watch Inc,2025-06-30,2026,Oakland,CA,C05,3995376,3895561,0,4519038,3871466,309722,2496566,197345,Leila Salazar-Lopez,21,18,97.5,85.7
262645719,COONAMESSETT FARM FOUNDATION INC,2025-12-31,2026,East Falmouth,MA,C05,3789449,2202203,1565557,3209034,2353278,0,1537698,0,KRISTIN ABBOTT,16,,58.1,73.3
923626174,UTILITY INFORMATION ALLIANCE,2025-12-31,2026,Seattle,WA,C05,3662832,3635000,0,3889776,3711476,58137,0,0,Corey Platt,0,2,99.2,95.4
450493983,ENVIRONMENT CALIFORNIA INC,2025-08-31,2026,Sacramento,CA,C05,3372147,3166653,0,2084471,1136381,802472,76699,83257,LAURA DEEHAN,6,5,93.9,54.5
571176128,ENVIRONMENTAL ACTION INC,2025-06-30,2026,Denver,CO,C05,2374032,2366925,0,570948,358672,185856,0,0,JOHN RUMPLER,0,0,99.7,62.8
330576233,HYDROLOGIC RESEARCH CENTER,2025-09-30,2026,San Diego,CA,C05,2325761,2322527,0,2472268,1722246,0,1944507,231907,DR Olufemi Osidele,19,,99.9,69.7
522053377,Environmental Research Institute of the,2025-09-30,2026,Washington,DC,C05,2259365,2202941,39400,1969422,1819659,0,603945,0,Jess Byrne,0,1215,97.5,92.4
237245037,CHESAPEAKE RESEARCH CONSORTIUM INC,2025-06-30,2026,Edgewater,MD,C05,2205150,2142133,63014,2201312,2145756,2104,1530045,146952,DR DENICE WARDROP,28,0,97.1,97.5
810626946,GLOBAL JUSTICE ECOLOGY PROJECT INC,2025-03-31,2026,Randolph,NY,C05,2047005,2004704,19767,1732530,1438395,48613,638002,71550,ANNE PETERMANN,9,,97.9,83.0
222573677,Ocean Alliance Inc,2025-06-30,2026,Gloucester,MA,C05,1840750,1525562,221364,1202183,1058613,42707,395698,136000,Iain Kerr,8,3,82.9,88.1
463272914,Outdoor Alliance,2025-12-31,2026,Washington,DC,C05,1747439,1718432,0,1832004,1642249,73199,1218099,203700,Adam Cramer,10,14,98.3,89.6
932070538,ALWAYS ON ENERGY RESEARCH,2025-12-31,2026,Denver,CO,C05,1533316,1098211,0,1222456,1016083,68054,365226,195000,ISAAC ORR,3,0,71.6,83.1
833274838,SMART SURFACES COALITION,2025-12-31,2026,Washington,DC,C05,1497137,1475085,0,2113227,1659128,91527,1265119,270192,GREGORY KATS,13,0,98.5,78.5
454219184,Spatial Informatics Group Natural,2025-12-31,2026,Pleasanton,CA,C05,1332173,1002054,330119,2177573,1574898,169293,703337,0,David Saah,8,,75.2,72.3
411412684,UPPER MISSISSIPPI RIVER BASIN,2025-06-30,2026,Edina,MN,C05,1315843,1298904,0,1417249,1192120,0,1071251,149788,KIRSTEN WALLACE,12,23,98.7,84.1
201843411,EARTH ECONOMICS,2025-12-31,2026,Tacoma,WA,C05,1310040,738711,549498,1358061,851464,0,963213,150000,MAYA KOCIAN,12,12,56.4,62.7
841419302,Institute for Social and Environmental,2025-06-30,2025,Boulder,CO,C05,1276581,880444,352531,1207102,1024992,0,486112,116740,Karen MacClune,6,8,69.0,84.9
473976138,CLIMATE XCHANGE EDUCATION AND RESEARCH,2025-06-30,2026,Boston,MA,C05,1201812,553951,21680,1279213,918298,169772,737613,171645,PAOLA FERREIRA MIANI,15,0,46.1,71.8
020474938,HUBBARD BROOK RESEARCH FOUNDATION,2025-09-30,2026,Thornton,NH,C05,1189813,1044606,97103,964044,775451,55850,719719,150093,ANTHEA LAVALLEE,15,10,87.8,80.4
852619691,INFLUENCEMAP INC,2025-03-31,2025,New York,NY,C05,1155738,1089833,70000,1153039,1095372,0,1025372,132146,KENDRA HAVEN,10,1,94.3,95.0
271363108,START International Inc,2025-12-31,2026,Fort Collins,CO,C05,1122938,1093300,0,1243624,999138,0,740433,230202,Jonathan Padgham,3,5,97.4,80.3
262880388,Power Environmental Energy Research Ins,2025-05-31,2026,Covina,CA,C05,1099604,609324,490243,922863,804529,0,623487,30000,Yongchun Tang,12,,55.4,87.2
521423164,CENTER FOR CLEAN AIR POLICY,2025-06-30,2026,Washington,DC,C05,1061835,1061835,0,2953536,2629739,29125,642828,151712,ALLISON BENDER-CORBETT,7,0,100.0,89.0
820993460,AMERICAN COMMON GROUND COUNCIL INC,2025-12-31,2026,Washington,DC,C05,1046402,1046402,0,1276011,1096295,32885,266000,124000,Jeffrey Kupfer,0,5,100.0,85.9
833674586,CLIMATE INNOVATION ACTION INC,2025-12-31,2026,New York,NY,C05,1000651,992700,0,595841,565366,0,0,11960,ROGER ULLMAN PRESIDENT,0,3,99.2,94.9
260467490,FARALLON INSTITUTE,2025-12-31,2026,Petaluma,CA,C05,911027,740122,169427,878812,738518,28091,603848,73147,WILLIAM J SYDEMAN PHD,10,5,81.2,84.0
825305142,COLORADO ENERGY AND WATER INSTITUTE,2025-12-31,2026,Denver,CO,C05,889158,572800,295167,894983,620836,80000,177310,106000,HELEN MORAN,2,7,64.4,69.4
050530668,PENNENVIRONMENT RESEARCH & POLICY CENTER,2025-06-30,2026,Philadelphia,PA,C05,855797,855483,0,844427,683872,41641,311569,0,CHRISTINE LINDSTROM,0,0,100.0,81.0
030354216,ENVIRONMENTAL MEDIATION CENTER,2025-12-31,2026,Moretown,VT,C05,674011,668809,0,646711,570595,0,579165,168831,MATT STRASSBERG,7,10,99.2,88.2
993897077,Policy Action for A Clean Tomorrow Inc,2025-06-30,2025,Washington,DC,C05,645000,645000,0,5819,,0,0,0,Elizabeth Thompson,0,3,100.0,
920535548,EARTHON FOUNDATION USA,2025-03-31,2026,Forest Hills,NY,C05,536442,530106,0,120782,80569,21239,0,0,STELLINA JOLLY,0,0,98.8,66.7
991585513,CLIMATE COLLECTIVE INC,2025-12-31,2026,New York,NY,C05,453873,452710,0,990008,734218,75564,774337,289500,ANNA LERNER NESBITT,2,3,99.7,74.2
571098783,THREE RIVERS SOLID WASTE TECHNOLOGY,2025-06-30,2025,Jackson,SC,C05,398817,0,333662,154185,135550,0,2300,300,FREDDIE HOUSTON,0,0,0.0,87.9
812889063,FLORIDA SPRINGS COUNCIL INC,2025-12-31,2026,High Springs,FL,C05,352516,345700,0,310273,235559,42891,225661,88934,Ryan Smart,3,50,98.1,75.9
264767097,ENVIRONMENTAL LAW AND POLICY CENTER,2025-06-30,2026,Chicago,IL,C05,309419,281424,0,463887,416072,0,17797,0,HOWARD A LEARNER,0,9,91.0,89.7
273782286,ENVIRONMENTAL PULSE INSTITUTE,2025-08-31,2025,Centreville,VA,C05,302000,0,302000,258062,,0,189000,50000,ASHBINDU SINGH,0,,0.0,
263999186,WATERLEGACY,2025-09-30,2026,Duluth,MN,C05,260595,231011,0,269636,237163,5805,0,118000,Paula Maccabee,0,200,88.6,88.0
391893896,AMOS A Mid-Iowa Organizing Strategy,2025-06-30,2025,Des Moines,IA,C05,257465,228631,0,209015,209015,0,168693,95068,Courtney Dufford,0,0,88.8,100.0
043737768,CENTER FOR SNOW AND AVALANCHE STUDIES,2025-06-30,2025,Silverton,CO,C05,255702,255702,0,241292,189681,0,110940,0,MARTHA WHITMORE,0,,100.0,78.6
650688476,SOLUTION TO AVOID RED TIDE INC,2025-12-31,2026,Tallevast,FL,C05,248208,22589,225251,276086,,1354,15254,0,SANDY GILBERT,1,,9.1,
470982430,Clean Water Legacy,2025-12-31,2026,Rapid City,SD,C05,248102,248102,0,217682,217682,0,112832,0,Bruce Ellison,4,,100.0,100.0
473666781,PLEISTOCENE PARK FOUNDATION INC,2025-12-31,2026,Huntingdon Vy,PA,C05,233438,0,0,230102,230102,0,0,0,EUGENE POTAPOV,0,1,0.0,100.0
237448202,MICHIGAN TURFGRASS FOUNDATION,2025-09-30,2026,Lansing,MI,C05,220577,92611,231407,323291,204512,0,0,40000,CAREY MITCHELSON,0,12,42.0,63.3
726146173,SCHLIEDER TRUST FBO UNO UWM CHAIR TRUST,2025-06-30,2025,New Orleans,LA,C05,213713,0,0,33381,22004,0,2979,2979,,0,,0.0,65.9
992060470,AQUATIC PLANT MANAGEMENT SOCIETY,2025-12-31,2026,Holly Springs,NC,C05,179557,23479,112632,163491,154155,0,0,0,BRITTANY CHESSER,0,22,13.1,94.3
841610236,SUSTAINABLE SETTINGS,2025-12-31,2026,Carbondale,CO,C05,158891,56128,102702,128366,95833,9732,0,0,PETER HAWKINS,0,0,35.3,74.7
201767415,INSTITUTE FOR COMPATIBLE DEVELOPMENT,2025-09-30,2026,Moss Point,MS,C05,26084,60000,0,42266,89655,0,0,0,L DAVID COMPTON,0,,230.0,212.1
884091317,GLOBAL PORTAL INSTITUTE,2025-12-31,2026,Dover,DE,C05,14177,14177,0,12440,1661,1661,0,0,LUCY XU,0,0,100.0,13.4
200257742,AQUATIC RESTORATION AND RESEARCH INSTITUTE,2025-12-31,2026,Rollinsville,CO,C05,7893,0,0,253806,253806,0,194341,67333,Jeffrey C Davis,2,0,0.0,100.0