Nonprofits in RIVERSIDE, CT
65 tax-exempt organizations with a return on IRS file.
Largest nonprofits in RIVERSIDE by revenue
- GREENWICH EMERGENCY MEDICAL SERVICE INCORPORATED EIN 22-2721171 · last filed 990 for 2025 · revenue $10,468,360
- RIVERSIDE YACHT CLUB INC EIN 06-0511710 · last filed 990 for 2025 · revenue $8,665,912
- CHILDRENS DAY SCHOOL INC EIN 22-2618520 · last filed 990 for 2025 · revenue $4,350,536
- THE TRANSPORTATION ASSOCIATION OF GREENWICH INC EIN 22-2531166 · last filed 990 for 2024 · revenue $1,931,561
- HILL HOUSE INC EIN 06-0989007 · last filed 990 for 2025 · revenue $1,637,476
- HEART CARE INTERNATIONAL INC EIN 06-1503838 · last filed 990 for 2024 · revenue $1,405,564
- PTSA CONNECTICUT INC EIN 06-1097792 · last filed 990 for 2026 · revenue $561,184
- GREENWICH SAILING SCHOOL INC EIN 87-3923796 · last filed 990 for 2024 · revenue $288,730
- JENGA USA INC EIN 83-2480569 · last filed 990 for 2025 · revenue $258,943
- PTA CONNECTICUT CONGRESS EIN 42-1682765 · last filed 990 for 2026 · revenue $210,513
All nonprofits in RIVERSIDE, A–Z
- ARMSTRONG ANGEL FOUNDATIONEIN 81-0778752 · last filed 990-PF for 2024
- BERGER FAMILY FOUNDATION INCEIN 27-4238729 · last filed 990-PF for 2025
- BYTEBLOOM ROBOTICS INCEIN 39-4920693 · last filed 990-N for 2024
- CHILDREN HELPING CHILDREN ASSOCIATIONEIN 99-4806536 · last filed 990-N for 2024
- CHILDRENS DAY SCHOOL INCEIN 22-2618520 · last filed 990 for 2025
- CHINESE LANGUAGE SCHOOL OF CONNECTICUT INCEIN 75-3057079 · last filed 990 for 2025
- COLEMAN FAMILY FOUNDATIONEIN 81-4671841 · last filed 990-PF for 2025
- COLUMBIA UNIVERSITY CLUB FOUNDATION INCEIN 13-6105775 · last filed 990-PF for 2025
- CONNECTICUT SOCIETY OF PORTRAIT ARTISTSEIN 03-0419432 · last filed 990-N for 2025
- COOKIE FOR A CAUSE INCEIN 33-4518895 · last filed 990 for 2025
- CROW HILL FOUNDATION TREIN 06-1475924 · last filed 990-PF for 2025
- DIGITAL DREAMERS FOUNDATION INCEIN 39-3306239 · last filed 990-N for 2025
- DOGWOOD PARK ASSOCIATION INCEIN 06-1184802 · last filed 990-N for 2025
- ELENI VAVAS MEMORIAL FUND INCEIN 47-1626276 · last filed 990-N for 2025
- FAIRFIELD COUNTY SWIMMING LEAGUEEIN 06-1032039 · last filed 990-EZ for 2025
- FAIRFIELD COUNTY WOMENS TENNIS LEAGUEEIN 35-2504812 · last filed 990-N for 2025
- FEDERATED GARDEN CLUBS OF CONNECTICUT INCEIN 06-6046792 · last filed 990-N for 2024
- FIGGIE FAMILY CHARITABLE FOUNDATIONEIN 84-3641556 · last filed 990-PF for 2025
- FOOD FOR FAIRFIELD INCEIN 87-3827624 · last filed 990-N for 2024
- FRIENDS LAKE PROPERTY OWNERS ASSOCIATION INCEIN 14-1671010 · last filed 990-N for 2025
- FULTON MICHALIK FOUNDATION INCEIN 47-4768467 · last filed 990-PF for 2025
- GHS BOYS HOCKEYEIN 45-5369204 · last filed 990-EZ for 2025
- GHS DIAMOND CLUB INCEIN 86-2040218 · last filed 990-EZ for 2025
- GHS ORCHESTRA ASSOCIATIONEIN 46-1261500 · last filed 990-N for 2025
- GREENWICH EMERGENCY MEDICAL SERVICE INCORPORATEDEIN 22-2721171 · last filed 990 for 2025
- GREENWICH NEWCOMERS & NEIGHBORS INCEIN 06-1390430 · last filed 990-N for 2025
- GREENWICH SAILING SCHOOL INCEIN 87-3923796 · last filed 990 for 2024
- HARVARD CLUB OF FAIRFIELD COUNTY INCEIN 51-0200338 · last filed 990-N for 2025
- HEART CARE INTERNATIONAL INCEIN 06-1503838 · last filed 990 for 2024
- HELPING HAND FOUNDATION TREIN 13-7409533 · last filed 990-PF for 2024
- HENRY & BIRDIE COHEN FUNDEIN 06-1620449 · last filed 990-PF for 2025
- HILL HOUSE INCEIN 06-0989007 · last filed 990 for 2025
- HUMANITARIAN ORGANIZATION FOR PHYSICAL EDUCATION INCEIN 81-4169941 · last filed 990 for 2025
- I3 FOUNDATION INCEIN 92-2062095 · last filed 990-N for 2024
- IBEX PEAK FOUNDATION INCEIN 82-0671497 · last filed 990-PF for 2025
- JENGA USA INCEIN 83-2480569 · last filed 990 for 2025
- KDK CHARITABLE TRUSTEIN 06-6455317 · last filed 990-PF for 2024
- KOROBKIN FOUNDATION INCEIN 13-3985413 · last filed 990-PF for 2024
- MOLLIE PARNIS LIVINGSTON FOUNDATION INCEIN 13-6265280 · last filed 990-PF for 2025
- MY STEM HELP INCEIN 85-2453161 · last filed 990-N for 2025
- OCEAN BLUE SAILING FOUNDATIONEIN 92-1582719 · last filed 990-N for 2025
- OGC CHARITABLE FOUNDATIONEIN 47-2447114 · last filed 990-PF for 2025
- OK TO DELAY INCORPORATEDEIN 99-3523762 · last filed 990-N for 2025
- OLD GREENWICH RIVERSIDE CHEERLEADING INCEIN 85-2986100 · last filed 990-PF for 2023
- OPIN INCEIN 30-0386610 · last filed 990 for 2024
- PARENT BOOSTER USA INCEIN 88-1143120 · last filed 990-N for 2025
- PITCH FOUNDATIONEIN 82-1541555 · last filed 990-PF for 2025
- PTA CONNECTICUT CONGRESSEIN 42-1682765 · last filed 990 for 2026
- PTO OF THE JAPANESE SCHOOL OF NEW YORK INCEIN 20-3823418 · last filed 990-N for 2025
- PTSA CONNECTICUT INCEIN 06-0994135 · last filed 990-EZ for 2026
- PTSA CONNECTICUT INCEIN 06-0994143 · last filed 990 for 2026
- PTSA CONNECTICUT INCEIN 06-1097792 · last filed 990 for 2026
- RAYMOND HAN AND PAUL KELLOGG FOUNDATION INCEIN 84-3241653 · last filed 990-PF for 2025
- RIVERSIDE YACHT CLUB INCEIN 06-0511710 · last filed 990 for 2025
- SAVE THE CHOC CORPORATIONEIN 99-3172676 · last filed 990-N for 2025
- SHIDOGAKUIN LTDEIN 13-3696712 · last filed 990 for 2025
- SLATERS LANE FOUNDATION INCEIN 33-1584309 · last filed 990 for 2024
- THE COMPLEX SAG HARBOR INCEIN 85-2656502 · last filed 990 for 2024
- THE CURTIS FOUNDATIONEIN 27-3682373 · last filed 990-PF for 2024
- THE TRANSPORTATION ASSOCIATION OF GREENWICH INCEIN 22-2531166 · last filed 990 for 2024
- TRC ASSIST INCEIN 87-4086000 · last filed 990-N for 2025
- WESTCHESTER SPEECH HEARING AND LANGUAGE ASSOCIATIONEIN 13-2992569 · last filed 990-N for 2024
- WILD WORKS CONNECTSEIN 92-0906739 · last filed 990-N for 2024
- WILLIAM J AND FRANCES E DEUTSCH CHARITABLE FOUNDATIONEIN 20-1163727 · last filed 990-PF for 2025
- WINDERFUL FOUNDATION INCEIN 93-1657250 · last filed 990-PF for 2024