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Mainspring Foundation

Mainspring Foundation is a charitable organization in Denver, Colorado. Its tax id (EIN) is 93-1659486. It was granted tax-exempt status by IRS in January, 2024. For detailed information such as income and other financial data of Mainspring Foundation, refer to the following table.


Profile of Mainspring Foundation

Organization Name Mainspring Foundation
Tax Id (EIN)93-1659486
Address 3070 Blake St Ste 200, Denver, CO 80205-3199
In Care of Name Fiona Arnold
All tax-exempt organizations in zip code 80205
Tax PeriodAssetIncomeRevenue
0$0$0$0
December, 2023$1$1$0
December, 2024$49,519$100,206$0
IRS Exempt Status Ruling Date January, 2024
Exempt Status Unconditional Exemption
Deductibility Contributions are deductible
Tax Exempt Classification Community Improvement, Capacity Building
Tax Exempt Activity Economic Development
NTEE CodeS30
Foundation Type Private operating foundation (other)
Organization Type Corporation
Organization Classification Charitable Organization
Affiliation Independent - This organization is an independent organization or an independent auxiliary (i.e., not affiliated with a National, Regional, or Geographic grouping of organizations).
Primary Return(s) Required to File 990 - Not required to file (all other)
Private Foundation Filing Requirement Need to file 990-PF return
Asset Range Reported on Form 990$25,000 to 99,999
Income Range Reported on Form 990$100,000 to 499,999
Accounting Period 12