- Is CSMB PTO Corporation a tax-exempt 501(c)(3)?
- Yes — CSMB PTO Corporation is recognised by the IRS as a 501(c)(3) organisation (EIN 41-3290929). The IRS recognised CSMB PTO Corporation as tax-exempt in January 2026.
- What is CSMB PTO Corporation's EIN?
- CSMB PTO Corporation's Employer Identification Number (EIN) is 41-3290929. The EIN was assigned by the IRS in January 2026. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.
- What does CSMB PTO Corporation do?
- CSMB PTO Corporation is registered with the IRS as a education nonprofit organisation. A detailed mission statement is not available on its most recent Form 990 filing.
- Where is CSMB PTO Corporation located?
- CSMB PTO Corporation is located at 4231 Castleman Ave, Saint Louis, MO, 63110-3502.
- When was CSMB PTO Corporation founded or recognised by the IRS?
- CSMB PTO Corporation was recognised by the IRS as a tax-exempt organisation in January 2026. The IRS ruling date is the earliest authoritative date available for most US nonprofits.
