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
530196523,CARNEGIE INSTITUTION OF WASHINGTON,2025-06-30,2026,Washington,DC,U31,106544070,15855216,12305423,112285627,85354985,2785896,65587711,953591,MICHAEL STAMBAUGH,488,16,14.9,76.0
262637707,GMTO CORPORATION,2025-06-30,2026,Pasadena,CA,U31,46688213,45811364,0,36697172,28638095,1798302,20859927,518846,ROBERT SHELTON,94,16,98.1,78.0
942951356,SETI INSTITUTE,2025-09-30,2026,Mountain View,CA,U31,27357400,26940031,0,30913579,21515804,925714,19926311,421694,BILL DIAMOND,177,17,98.5,69.6
860098918,LOWELL OBSERVATORY,2025-12-31,2026,Flagstaff,AZ,U31,19557310,12790757,5821022,22235112,18305290,1676946,11988836,206898,AMANDA BOSH,183,91,65.4,82.3
992163812,SAN DIEGO ASTRONOMY ASSOCIATION,2025-06-30,2026,San Diego,CA,U31,13690958,13252379,0,57459,57459,0,0,0,DAVID DECKER,0,0,96.8,100.0
270184094,BLUE MARBLE SPACE,2025-09-30,2026,Seattle,WA,U31,5115175,30021,5008949,5166690,4676055,80,3516844,156724,MILENA POPOVIC,44,219,0.6,90.5
454104640,CCAT OBSERVATORY INC,2025-06-30,2026,Ithaca,NY,U31,2761167,2525869,0,1120697,1022127,0,522092,0,MICHEL FICH,0,25,91.5,91.2
020225135,MOUNT WASHINGTON OBSERVATORY,2025-03-31,2025,North Conway,NH,U31,2721606,2140450,181622,2391436,1693645,493543,1658575,116778,DREW BUSH,39,50,78.6,70.8
046156432,Northeast Radio Observatory Corporation,2025-06-30,2026,Cambridge,MA,U31,2055877,2055877,0,2058429,2053377,0,0,0,Min Yun,0,0,100.0,99.8
953374645,GRIFFITH OBSERVATORY FOUNDATION,2025-12-31,2026,Los Angeles,CA,U31,2034630,1923313,23215,2354667,1476612,404605,1150647,129659,BENJAMIN ROUDENIS,14,39,94.5,62.7
042164402,AMERICAN ASSOCIATION OF VARIABLE STAR OB,2025-09-30,2026,Cambridge,MA,U31,1682737,366182,156899,1276217,771146,133932,836961,190972,DR BRIAN KLOPPENBORG,8,785,21.8,60.4
237128629,Monterey Institute for Research in Astronomy,2025-12-31,2026,Marina,CA,U31,801076,691695,7341,648470,387410,0,373074,0,Gordon Jones,8,10,86.3,59.7
370990161,MUFON Mutual UFO Network Inc,2025-12-31,2026,Cincinnati,OH,U31,529278,349599,119590,583742,148102,0,0,0,David MacDonald,0,,66.1,25.4
463183809,Wyoming Star Gazing,2025-12-31,2026,Jackson,WY,U31,516895,151920,365022,623093,573883,20801,333533,72131,Samuel Wasserman Singer,23,11,29.4,92.1
526054301,ASTRONOMICAL LEAGUE,2025-06-30,2025,Lawton,OK,U31,344395,249504,0,280779,102661,0,0,0,MICHAEL COUCKE,0,,72.4,36.6
311585646,Mars Society Inc,2025-03-31,2026,Lakewood,CO,U31,284254,126409,147596,662716,615294,0,19903,0,James Heisler,0,,44.5,92.8
830931665,PROJECT NIGHT SKY,2025-12-31,2026,Huntsville,AL,U31,271561,271561,0,255430,255430,0,164385,0,TIM CATON,3,,100.0,100.0
363254326,International Occultation Timing Association,2025-12-31,2026,Fountain Hls,AZ,U31,195548,147754,20409,34784,34784,0,0,0,SEVEN PRESTON,0,500,75.6,100.0
770616930,ADIRONDACK PUBLIC OBSERVATORY INC,2025-12-31,2026,Tupper Lake,NY,U31,135387,132196,0,161344,87333,3935,74499,29361,NATALIE ZUREK,3,0,97.6,54.1