Community Foundations NTEE T31

4,136 organizations in the U.S. are classified under NTEE code T31 (Philanthropy, Voluntarism & Grantmaking Foundations). Organizations that make grants for charitable purposes in a specific community or region. The funds available to a community foundation are usually derived from many donors and held in an endowment that is independently administered; income earned by the endowment is then used to make grants. (rev. 11/04)

Largest organizations

OrganizationLocationTypeRevenue
Association of Universities forEIN 86-0138043 · Astronomy Washington, DC 501(c)(3) Deductible $468.8 million
Carnegie Institution of WashingtonEIN 53-0196523 · Astronomy Washington, DC 501(c)(3) Deductible $106.5 million
Gmto CorporationEIN 26-2637707 · Astronomy Pasadena, CA 501(c)(3) Deductible $46.7 million
California Association for Research in AstronomyEIN 95-3972799 · Astronomy Kamuela, HI 501(c)(3) Deductible $30.1 million
Seti InstituteEIN 94-2951356 · Astronomy Mountain View, CA 501(c)(3) Deductible $27.4 million
American Astronomical SocietyEIN 21-0735173 · Astronomy Washington, DC 501(c)(3) Deductible $21.9 million
Lowell ObservatoryEIN 86-0098918 · Astronomy Flagstaff, AZ 501(c)(3) Deductible $19.6 million
Large Binocular Telescope CorporationEIN 86-0724677 · Astronomy Tucson, AZ 501(c)(3) Deductible $15.0 million
San Diego Astronomy Association FoundationEIN 99-2163812 · Astronomy San Diego, CA 501(c)(3) Deductible $13.7 million
Tmt International Observatory LLCEIN 30-0833462 · Astronomy Monrovia, CA 501(c)(3) Deductible $13.2 million
B612 FoundationEIN 54-2078469 · Astronomy Mill Valley, CA 501(c)(3) Deductible $5.6 million
Astrophysical Research ConsortiumEIN 91-1265806 · Astronomy Seattle, WA 501(c)(3) Deductible $5.2 million
Blue Marble SpaceEIN 27-0184094 · Astronomy Seattle, WA 501(c)(3) Deductible $5.1 million
Wiyn Consortium IncEIN 86-0669456 · Astronomy Tucson, AZ 501(c)(3) Deductible $4.1 million
Soar Consortium IncEIN 86-0944542 · Astronomy Tucson, AZ 501(c)(3) Deductible $3.6 million
Lsst IncEIN 56-2390650 · Astronomy Tucson, AZ 501(c)(3) Deductible $3.6 million
Ccat Observatory IncEIN 45-4104640 · Astronomy Ithaca, NY 501(c)(3) Deductible $2.8 million
Mount Washington ObservatoryEIN 02-0225135 · Astronomy North Conway, NH 501(c)(3) Deductible $2.7 million
Northeast Radio Observatory CorporationEIN 04-6156432 · Astronomy Cambridge, MA 501(c)(3) Deductible $2.1 million
Griffith Observatory FoundationEIN 95-3374645 · Astronomy Los Angeles, CA 501(c)(3) Deductible $2.0 million
American Association of Variable Star ObserversEIN 04-2164402 · Astronomy Cambridge, MA 501(c)(3) Deductible $1.7 million
Astronomical Society of the PacificEIN 94-0294860 · Astronomy San Francisco, CA 501(c)(3) Deductible $1.4 million
Mount Wilson InstituteEIN 77-0132297 · Astronomy Pasadena, CA 501(c)(3) Deductible $1.2 million
American Astronautical Society IncEIN 52-6053513 · Astronomy Springfield, VA 501(c)(3) Deductible $1.0 million
Monterey Institute for Research in AstronomyEIN 23-7128629 · Astronomy Marina, CA 501(c)(3) Deductible $801,076
Pisgah Astronomical Research InstituteEIN 56-2108640 · Astronomy Rosman, NC 501(c)(3) Deductible $727,738
Mufon Mutual Ufo Network IncEIN 37-0990161 · Astronomy Cincinnati, OH 501(c)(3) Deductible $529,278
Wyoming Star GazingEIN 46-3183809 · Astronomy Jackson, WY 501(c)(3) Deductible $516,895
Astronomical LeagueEIN 52-6054301 · Astronomy Lawton, OK 501(c)(3) Deductible $344,395
Open Lunar FoundationEIN 82-4265651 · Astronomy Covina, CA 501(c)(3) Deductible $339,356
Tmt Observatory CorporationEIN 20-0988966 · Astronomy Monrovia, CA 501(c)(3) Deductible $296,950
Mars Society IncEIN 31-1585646 · Astronomy Lakewood, CO 501(c)(3) Deductible $284,254
Project Night SkyEIN 83-0931665 · Astronomy Huntsville, AL 501(c)(3) Deductible $271,561
Southeastern Planetarium AssociationEIN 80-0444010 · Astronomy Glen Allen, VA 501(c)(3) Deductible $240,858
Native Skywatchers IncorporatedEIN 81-2015231 · Astronomy Maple Grove, MN 501(c)(3) Deductible $195,673
International Occultation Timing AssociationEIN 36-3254326 · Astronomy Fountain Hls, AZ 501(c)(3) Deductible $195,548
Rockland Astronomy Club IncEIN 61-1689911 · Astronomy Stony Point, NY 501(c)(3) Deductible $194,713
Organization for Professional Astrology IncEIN 88-1780988 · Astronomy San Diego, CA 501(c)(3) Deductible $162,485
Stellar Vista ObservatoryEIN 83-3526645 · Astronomy Kanab, UT 501(c)(3) Deductible $161,999
Kainaat Studios IncEIN 83-3231956 · Astronomy Amherst, MA 501(c)(3) Deductible $145,595
Adirondack Public Observatory IncEIN 77-0616930 · Astronomy Tupper Lake, NY 501(c)(3) Deductible $135,387
Carlton ObservatoryEIN 82-4957052 · Astronomy Carlton, OR 501(c)(3) Deductible $117,402
Darksky ColoradoEIN 92-2561369 · Astronomy Paonia, CO 501(c)(3) Deductible $115,774
Orions QuestEIN 06-1666146 · Astronomy Livonia, MI 501(c)(3) Deductible $109,162
Society for Mass Spectrometry ImagingEIN 81-3766415 · Astronomy Woodland, CA 501(c)(6) $100,429
National Space Science & Technology InstituteEIN 84-1374681 · Astronomy Colorado Spgs, CO 501(c)(3) Deductible $94,159
Oklahoma City Astronomy ClubEIN 73-1532941 · Astronomy Oklahoma City, OK 501(c)(3) Deductible $74,943
Skys the Limit Observatory & Nature CenterEIN 81-4312310 · Astronomy Twentynin Plm, CA 501(c)(3) Deductible $65,230
Future Space Leaders FoundationEIN 90-0854973 · Astronomy Washington, DC 501(c)(3) Deductible $58,618
Space for a Better World IncEIN 87-3561162 · Astronomy Winter Park, FL 501(c)(3) Deductible $40,229

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