- Is Mainframe a tax-exempt 501(c)(3)?
- Yes. Mainframe is recognised by the IRS as a 501(c)(4) organisation (EIN 39-2215232). The IRS recognised Mainframe as tax-exempt in September 2025.
- What is Mainframe's EIN?
- Mainframe's Employer Identification Number (EIN) is 39-2215232. The EIN was assigned by the IRS in September 2025. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does Mainframe do?
- To promote nonpartisan civic engagement and education in maine by creating and distributing digital content that informs, connects, and engages residents on public issues.
- Where is Mainframe located?
- Mainframe is located at PO Box 4224, Portland, ME, 04101.
- When was Mainframe founded or recognised by the IRS?
- Mainframe was recognised by the IRS as a tax-exempt organisation in September 2025. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
- What is Mainframe's annual revenue?
- On its most recent Form 990 (fiscal year 2025), Mainframe reported $1.1M in total revenue and $753K in total expenses.
- Has Mainframe been auto-revoked by the IRS?
- No. Mainframe (EIN 39-2215232) does not appear on the IRS Auto-Revocation List. Givalgo Discover cross-references the IRS Auto-Revocation List on every profile load; if status changes, this page reflects it.
- Is Mainframe listed in IRS Publication 78?
- Givalgo Discover did not find Mainframe in the most recent IRS Publication 78 download. Some tax-exempt organisations (e.g., churches and government instrumentalities) are eligible to receive deductible contributions without appearing in Pub 78. Verify directly with the IRS if uncertain.
