- Is Calgrove Institute a tax-exempt 501(c)(3)?
- Yes — Calgrove Institute is recognised by the IRS as a 501(c)(3) organisation (EIN 41-2534616). The IRS recognised Calgrove Institute as tax-exempt in November 2025.
- What is Calgrove Institute's EIN?
- Calgrove Institute's Employer Identification Number (EIN) is 41-2534616. The EIN was assigned by the IRS in November 2025. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does Calgrove Institute do?
- Calgrove Institute is registered with the IRS as a environment nonprofit organisation. A detailed mission statement is not available on its most recent Form 990 filing.
- Where is Calgrove Institute located?
- Calgrove Institute is located at 5650 Whitelock PKWY Suite 130 1168, ELK Grove, CA, 95757-5927.
- When was Calgrove Institute founded or recognised by the IRS?
- Calgrove Institute was recognised by the IRS as a tax-exempt organisation in November 2025. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
