- Is 4th Trimester Foundation a tax-exempt 501(c)(3)?
- Yes — 4th Trimester Foundation is recognised by the IRS as a 501(c)(3) organisation (EIN 39-3513189). The IRS recognised 4th Trimester Foundation as tax-exempt in February 2026.
- What is 4th Trimester Foundation's EIN?
- 4th Trimester Foundation's Employer Identification Number (EIN) is 39-3513189. The EIN was assigned by the IRS in February 2026. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does 4th Trimester Foundation do?
- 4th Trimester Foundation is registered with the IRS as a health nonprofit organisation. A detailed mission statement is not available on its most recent Form 990 filing.
- Where is 4th Trimester Foundation located?
- 4th Trimester Foundation is located at 410 Tamarack PL, Novato, CA, 94945-1126.
- When was 4th Trimester Foundation founded or recognised by the IRS?
- 4th Trimester Foundation was recognised by the IRS as a tax-exempt organisation in February 2026. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
