Mount Wilson Institute in Pasadena, California (CA)


Employer Identification Number (EIN) 77-0132297
Name of Organization Mount Wilson Institute
Address 75 S Grand Ave, Pasadena, CA 91105-1602
Previous Addresses Po Box 94146, Pasadena, CA 91109-0000 (2022)
Po Box 94146, Pasadena, CA 91109-4146 (2015 - 2021)
25 Park Place Room 607, Atlanta, GA 30303-2918 (2013)
Po Box 1909, Atlanta, GA 30301-1909 (2004 - 2012)
Subsection(s) / Classification Educational Organization
Affiliation Independent
Ruling Date 06/1987
Deductibility Contributions are deductible
Foundation Organization that normally receives no more than one third of its support from gross investment income and unrelated business income and at the same time more than one third of its support from contributions, fees, and gross receipts related to exempt purposes
Activities Other cultural or historical activities
Described in section 509(a)(2) of the Code
Organization Corporation
Exempt Organization Status Unconditional Exemption
Tax Period 12/2023
Asset $1,000,000 to $4,999,999
Income $1,000,000 to $4,999,999
Filing Requirement 990 (all other) or 990EZ return
Accounting Period December (12)
Asset Amount $3,667,301
Income Amount $1,481,620
Form 990 Revenue Amount $1,278,483
National Taxonomy of Exempt Entities (NTEE) Science and Technology Research Institutes, Services: Astronomy
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Organizations performing similar types of work - median values


Income amount
Similar organizations: $861,893
This organization: $1,481,620
Asset amount
Similar organizations: $579,424
This organization: $3,667,301