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Organization Location Revenue Expenses Assets Program Fundr. cost Employees Type Follow
Lowell Observatory The mission of LOWELL OBSERVATORY is to pursue the study of astronomy, especially the study of our solar… 86-0098918 · FY2024 Flagstaff, AZ $11.9M $19.5M $97.9M 78% 9% 183 501(c)(3)
Mount Washington Observatory Scientific research for government education and industry. 02-0225135 · FY2024 North Conway, NH $2.7M $2.4M $12.4M 71% 21% 31 501(c)(3)
Vatican Observatory Foundation a Nonprofit Corporation The Vatican Observatory Foundation brings together scientists, philanthropists and the Catholic Church to… 86-0559994 · FY2023 Tucson, AZ $1.5M $1.0M $4.8M 60% 23% 3 501(c)(3)
The Lighthouserva The LIGHTHOUSERVA (the organization) was formed with the goal of establishing a community for women who have… 88-1228928 · FY2024 Richmond, VA $321.7K $104.9K $520.6K 96% 0% 1 501(c)(3)
West View Hub 84-2507756 · FY2024 Pittsburgh, PA $193.1K $114.3K 501(c)(3)
Bridging the Horizon 47-4063100 · FY2024 Salem, NH $192.3K $103.6K 501(c)(3)
The Radiance Center 20-0866603 · FY2024 Encinitas, CA $191.4K $1 501(c)(3)
Star Center 81-1612422 · FY2024 Ontario, OR $167.7K $43.4K 501(c)(3)
Magellan Foundation 83-4244112 · FY2024 Walnut Creek, CA $153.9K $122.2K 501(c)(3)
Project Night Sky To encourage and promote the study and practice of astronomy and contribute to scientific obervations 83-0931665 · FY2024 Huntsville, AL $150.0K $193.7K $1.1M 100% 0% 3 501(c)(3)
World Ocean Observatory 46-5693943 · FY2024 Sedgwick, ME $143.7K $4.4K 501(c)(3)
The Brain Observatory 46-2049025 · FY2024 San Diego, CA $143.1K $188.4K 501(c)(3)
Rio Vision 46-2441634 · FY2024 Rio Vista, CA $140.0K $88.2K 501(c)(3)
Lighthouse World Mission 27-1077712 · FY2025 Gainesville, VA $137.4K $99.0K 501(c)(3)
Denver Astronomical Society 84-0952430 · FY2025 Denver, CO $113.1K $452.0K 501(c)(3)
The National Weather Museum and Science Center 26-0172094 · FY2024 Norman, OK $108.6K $129.6K 501(c)(3)
Portal Cinema 92-0302675 · FY2023 San Francisco, CA $108.4K $0 501(c)(3)
Link Observatory and Space Science Center Corporation 45-5369783 · FY2022 Westfield, IN $105.4K $0 501(c)(3)
Open Space Arts 85-3992959 · FY2025 Chicago, IL $104.1K $302 501(c)(3)
Berkshire Bird Observatory 93-4916554 · FY2024 Gt Barrington, MA $100.5K $16.9K 501(c)(3)
Stellar Vista Observatory 83-3526645 · FY2024 Kanab, UT $98.9K $155.2K 501(c)(3)
Amateur Astronomers Association 13-6089946 · FY2024 New York, NY $98.2K $431.3K 501(c)(3)
Shekinal Glory Vision Center 84-1885218 · FY2024 Mullins, SC $94.6K $127.4K $1 501(c)(3)
Over the Horizon Incorporated 82-3349360 · FY2024 Evansville, IN $91.8K $16.3K 501(c)(3)
Sky View Villa 51-0190786 · FY2024 Graham, WA $88.0K $24.1K 501(c)(3)
The Optical Heritage Museum INC 47-1371753 · FY2024 Southbridge, MA $85.9K $258.4K 501(c)(3)
Oklahoma City Astronomy Club 73-1532941 · FY2025 Oklahoma City, OK $74.9K $173.4K 501(c)(3)
Chi Omega Kaleidoscope 76-0065611 · FY2024 Houston, TX $74.0K $78.6K 501(c)(3)
Consortium of Organizations for Strong Motion Observation Systems DBA Cosmos 68-0430266 · FY2024 San Francisco, CA $73.5K $49.3K 501(c)(3)
San Diego Astronomy Association 51-0183640 · FY2023 San Diego, CA $70.2K $250.4K 501(c)(3)
The Space Museum 26-1082763 · FY2024 Bonne Terre, MO $68.0K $99.1K 501(c)(3)
Von Braun Astronomical Association 63-0497880 · FY2024 Huntsville, AL $67.1K $146.4K 501(c)(3)
Dudley Observatory 14-1455417 · FY2023 Loudonville, NY $67.0K $101.5K $1.9M 81% 0% 501(c)(3)
Skys the Limit Observatory & Nature Center 81-4312310 · FY2025 Twentynin Plm, CA $65.2K $415.2K 501(c)(3)
Rose City Astronomers 93-1205364 · FY2024 Portland, OR $60.4K $178.8K 501(c)(3)
Institute of Cosmic Sciences Incorporated 99-3195526 · FY2025 San Jose, CA $56.4K $51.1K 501(c)(3)
Charlie Bates Solar Astronomy Project INC 27-0261397 · FY2025 Atlanta, GA $52.1K $19.1K 501(c)(3)
Patasphere 81-3872061 · FY2024 Dallas, PA $40.9K $12.8K 501(c)(3)
Planets Telescope Foundation 47-4027864 · FY2024 Kula, HI $0 $349.0K 501(c)(3)
2,046,138
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Public data from IRS Form 990 e-file & Business Master File. A 990 shows reported financial activity, not measured program outcomes. Assets are from the IRS BMF and may lag the latest filing; fundraising cost is fundraising expenses as a share of total expenses. · philanthropy.org