Nonprofits in WASHINGTON, DC
11,644 tax-exempt organizations with a return on IRS file.
All nonprofits in WASHINGTON, A–Z (page 98 of 117)
- SOCIETY FOR CHILDREN ORPHANED BY AIDS INCEIN 90-0150914 · last filed 990-N for 2025
- SOCIETY FOR CONSERVATION BIOLOGYEIN 33-0147824 · last filed 990 for 2025
- SOCIETY FOR ECOLOGICAL RESTORATION INCEIN 39-1647554 · last filed 990 for 2024
- SOCIETY FOR EXPERIMENTAL BIOLOGY AND MEDICINEEIN 13-1635283 · last filed 990 for 2024
- SOCIETY FOR GLYCOBIOLOGYEIN 52-1295523 · last filed 990 for 2024
- SOCIETY FOR HISTORY IN THE FEDERAL GOVERNMENTEIN 52-1190235 · last filed 990-N for 2025
- SOCIETY FOR INSTITUTIONAL AND ORGANIZATIONAL ECONOMICSEIN 43-1809268 · last filed 990-EZ for 2025
- SOCIETY FOR INTERNATIONAL DEVELOPMENT SIDEIN 53-0260526 · last filed 990 for 2024
- SOCIETY FOR INTERNATIONAL DEVELOPMENT WASHINGTON CHAPTEIN 52-1174165 · last filed 990 for 2025
- SOCIETY FOR MAINTENANCE AND RELIABILITY PROFESSIONALSEIN 26-3151121 · last filed 990 for 2025
- SOCIETY FOR MAINTENANCE AND RELIABILITY PROFESSIONALS FOUNDATIEIN 31-1359197 · last filed 990-EZ for 2025
- SOCIETY FOR MATERNAL-FETAL MEDICINEEIN 74-2052541 · last filed 990 for 2025
- SOCIETY FOR NEUROSCIENCEEIN 52-0895843 · last filed 990 for 2025
- SOCIETY FOR NEUROSCIENCEEIN 46-1667026 · last filed 990-N for 2023
- SOCIETY FOR PERSONALITY AND SOCIAL PSYCHOLOGY INCEIN 59-1667323 · last filed 990 for 2025
- SOCIETY FOR RESEARCH IN CHILD DEVELOPMENTEIN 35-6005842 · last filed 990 for 2025
- SOCIETY FOR SCIENCE AND THE PUBLICEIN 53-0196483 · last filed 990 for 2024
- SOCIETY FOR TECHNICAL COMMUNICATIONEIN 23-7264292 · last filed 990-N for 2023
- SOCIETY FOR THE ADVANCEMENT OF THE ART MUSEUM OF THE AMERICASEIN 87-3232310 · last filed 990-N for 2025
- SOCIETY FOR THE FRIENDLY SONS OF ST PATRICK OF THE CITY OF WASH D CEIN 52-1199237 · last filed 990 for 2025
- SOCIETY FOR THE PRESERVATION OF ANCIENT CHURCHES INCEIN 52-2256840 · last filed 990-N for 2025
- SOCIETY FOR THE PRESERVATION SPGHEIN 52-1058376 · last filed 990-N for 2025
- SOCIETY FOR THE PSYCHOLOGICAL STUDY OF SOCIAL ISSUESEIN 38-1614481 · last filed 990 for 2024
- SOCIETY FOR THE RULE OF LAW AND DEMOCRACY INCEIN 93-4685009 · last filed 990 for 2024
- SOCIETY OF AMERICAN FORESTERSEIN 53-0204630 · last filed 990 for 2024
- SOCIETY OF AMERICAN HOMEOWNERSEIN 39-2820238 · last filed 990-N for 2025
- SOCIETY OF AMERICAN MILITARY ENGINEERSEIN 52-1095482 · last filed 990 for 2024
- SOCIETY OF AMERICAN TRAVEL WRITERS INCEIN 52-6055577 · last filed 990 for 2025
- SOCIETY OF BLACK ARCHAEOLOGISTSEIN 83-1662591 · last filed 990 for 2025
- SOCIETY OF COLONIAL WARS IN THE DISTRICT OF COLUMBIAEIN 52-6078080 · last filed 990 for 2025
- SOCIETY OF DERMATOLOGY PHYSICIAN ASSOCIATES INCEIN 80-0103386 · last filed 990 for 2024
- SOCIETY OF DISABLED JOURNALISTSEIN 99-3934241 · last filed 990-N for 2025
- SOCIETY OF EAST AFRICAN NURSE ANEST HESIOLOGISTS IN AMERICAEIN 33-2466698 · last filed 990-N for 2025
- SOCIETY OF ENVIRONMENTAL JOURNALISTSEIN 52-0194031 · last filed 990 for 2024
- SOCIETY OF ENVIRONMENTAL TOXICOLOGY AND CHEMISTRYEIN 52-1184315 · last filed 990 for 2025
- SOCIETY OF ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY OF NORTH AMERICA INCEIN 37-1482800 · last filed 990 for 2025
- SOCIETY OF ETHIOPIANS ESTABLISHED IN DIASPORAEIN 57-1146413 · last filed 990-N for 2025
- SOCIETY OF FORENSIC ANTHROPOLOGISTS INCORPORATEDEIN 35-2379532 · last filed 990-N for 2025
- SOCIETY OF HEALTH AND PHYSICAL EDUCATORSEIN 82-2307037 · last filed 990-N for 2025
- SOCIETY OF HEALTH POLICY YOUNGPROFESSIONALSEIN 26-0662350 · last filed 990-N for 2025
- SOCIETY OF HISPANIC PROFESSIONAL ENGINEERS WASHINGTON DC CHAPTEREIN 82-2055576 · last filed 990-N for 2025
- SOCIETY OF INTERVENTIONAL ONCOLOGY INCEIN 41-2161648 · last filed 990 for 2024
- SOCIETY OF MAYFLOWER DESCENDANTS IN THE DISTRICT OF COLUMBIAEIN 52-6047033 · last filed 990-N for 2025
- SOCIETY OF PROFESSIONAL ENGINEERS DISTRICT OF COLUMBIAEIN 52-6046209 · last filed 990-N for 2025
- SOCIETY OF SAINT VINCENT DE PAULEIN 80-0807050 · last filed 990-N for 2024
- SOCIETY OF SATELLITE PROFESSIONALS MID ATLANTIC REGIONAL CHAPTEREIN 54-1394057 · last filed 990-N for 2024
- SOCIETY OF ST VINCENT DE PAUL CHURCH OF THE INCARNATION CONFERENEIN 83-2785686 · last filed 990-N for 2025
- SOCIETY OF ST VINCENT DE PAUL OUR LADY QUEEN OF PEACE CONFERENCEEIN 83-2588457 · last filed 990-N for 2025
- SOCIETY OF ST VINCENT DE PAUL ST BENEDICT THE MOOR CONFERENCEEIN 83-2509172 · last filed 990-N for 2025
- SOCIETY OF THE CINCINNATIEIN 53-0205423 · last filed 990 for 2025
- SOCIETY OF THE DESCENDANTS OF THE SIGNERS OF THE CONSTITUTIONEIN 99-3885949 · last filed 990-N for 2025
- SOCIETY OF THE WAR OF 1812 IN THE DISTRICT OF COLUMBIAEIN 52-6055588 · last filed 990-N for 2025
- SOCIETY OF WOMAN GEOGRAPHERSEIN 52-0936133 · last filed 990 for 2024
- SODEV INTERNATIONALEIN 52-2260489 · last filed 990-EZ for 2023
- SOFTWARE EDUCATION FOUNDATIONEIN 81-4001808 · last filed 990 for 2025
- SOFTWARE PUBLISHERS ASSOCIATIONEIN 52-1329859 · last filed 990 for 2025
- SOJOURNERSEIN 23-7380554 · last filed 990 for 2025
- SOJOURNER TRUTH SCHOOLEIN 83-2203475 · last filed 990 for 2025
- SO KIDS SOAREIN 61-1716117 · last filed 990 for 2025
- SOLAR AND STORAGE INDUSTRIES INSTITUTEEIN 88-1327537 · last filed 990 for 2024
- SOLARAPP FOUNDATIONEIN 86-3112004 · last filed 990 for 2024
- SOLAR ELECTRIC LIGHT FUNDEIN 52-1701564 · last filed 990 for 2024
- SOLAR ENERGY INDUSTRIES ASSOCIATION INCEIN 52-1072179 · last filed 990 for 2024
- SOLAR ENERGY MANUFACTURERS FOR AMERICA COALITION INCEIN 92-1011338 · last filed 990 for 2025
- SOLAR ENERGY MANUFACTURERS FOR AMERICA EDUCATION FUNDEIN 33-3551630 · last filed 990-N for 2025
- SOLAR HOUSEHOLD ENERGY INCEIN 31-1645471 · last filed 990-N for 2024
- SOLAR UNITED NEIGHBORSEIN 46-2462990 · last filed 990 for 2024
- SOLAR UNITED NEIGHBORS ACTIONEIN 86-2788934 · last filed 990 for 2024
- SOLAS NUA INCEIN 20-2454448 · last filed 990 for 2024
- SOLIDARITY HALL INCEIN 47-3158723 · last filed 990-N for 2024
- SOLIDARITY WITH THE LEBANESE PEOPLEEIN 84-4907759 · last filed 990-EZ for 2025
- SOLIDARITY WITH THE PERSECUTED CHURCHEIN 46-1923294 · last filed 990-EZ for 2024
- SOME INCEIN 23-7098123 · last filed 990 for 2024
- SOMETHING GREATER MINISTRIES INCEIN 82-2481070 · last filed 990-N for 2024
- SONGS BY HEART FOUNDATIONEIN 47-2743895 · last filed 990 for 2024
- SONIA & LOUIS ROTHSCHILD FAMILY FOUNDATIONEIN 52-2130547 · last filed 990-PF for 2023
- SONS AND DAUGHTERS OF AFRICA SADA INC AFRICANIZATION SOCIETYEIN 52-2280349 · last filed 990-N for 2025
- SONS OF ITALY FOUNDATIONEIN 23-6276526 · last filed 990 for 2025
- SONS OF ITALY IN AMERICAEIN 23-1523015 · last filed 990 for 2025
- SONS OF LIBERTY INTERNATIONALEIN 47-2169674 · last filed 990 for 2024
- SO OTHERS ASCEND RIGHTEOUSLY SOAREIN 81-4103992 · last filed 990-PF for 2024
- SORPTIVE MINERALS INSTITUTEEIN 23-7076764 · last filed 990 for 2025
- SOSABEIN 37-2006316 · last filed 990-N for 2025
- SOS CHILDRENS VILLAGE USA INCEIN 13-6188433 · last filed 990 for 2024
- SOUL CULTIVATORSEIN 88-0638687 · last filed 990-N for 2025
- SOULFULL LIFE UNIVERSITYEIN 88-2729145 · last filed 990-N for 2025
- SOULLIFE FOUNDATIONEIN 93-2076080 · last filed 990-N for 2025
- SOULSAPAZEIN 99-4250200 · last filed 990 for 2025
- SOUL TRAK OUTDOORSEIN 83-2506329 · last filed 990 for 2025
- SOULUTIONARY INCEIN 93-2564317 · last filed 990-N for 2024
- SOUNDEXCHANGE INCEIN 76-0742496 · last filed 990 for 2024
- SOUTH ASIAN BAR ASSOCIATION OF WASHINGTON D CEIN 52-2305347 · last filed 990-EZ for 2025
- SOUTH ASIAN HERITAGE FUNDEIN 93-4184719 · last filed 990-N for 2024
- SOUTH ASIAN IMPACT FOUNDATIONEIN 99-3989084 · last filed 990 for 2024
- SOUTH CAROLINA BUSINESS COUNCILEIN 27-0237355 · last filed 990-N for 2025
- SOUTH CAROLINA STATE UNIVERSITY NATIONAL ALUMNI ASSOCIATIONEIN 38-3649314 · last filed 990-EZ for 2024
- SOUTHEAST ASIA MEDIA PROJECT INCEIN 87-1806304 · last filed 990 for 2024
- SOUTHEAST ASIA RESOURCE ACTION CENTEREIN 52-1161473 · last filed 990 for 2025
- SOUTHEAST CHILDRENS FUND INCEIN 52-1905720 · last filed 990 for 2025
- SOUTHEASTERN UNIVERSITIES RESEARCH ASSOCIATIONEIN 26-2778710 · last filed 990-N for 2024