# C I O S

C I O S is a Private Foundation based in SCOTTSDALE, United States.

## Overview

- **Organization type:** Private Foundation
- **Headquarters:** SCOTTSDALE, United States
- **Region:** North America

## About

C I O S is listed by the Internal Revenue Service as a private grantmaking foundation exempt under Section 501(c)(3), with employer identification number 74-2472778. The IRS filing address is in SCOTTSDALE, AZ, United States. For the tax period ending June 2025, the IRS Exempt Organizations Business Master File lists year-end book assets of USD 109,157,234 and an IRS-computed Income Amount of USD 25,309,267. For private foundations, this extract field combines total revenue with specified cost-of-goods and cost-basis amounts from Form 990-PF. The IRS ruling date on file is February 1987. These tax-filing amounts are not assets under management or net profit.

## Questions

### What is C I O S?

The IRS lists C I O S as a private grantmaking foundation exempt under Section 501(c)(3), with EIN 74-2472778.

### What filing locality does the IRS record for C I O S?

The IRS filing address is in SCOTTSDALE, AZ, United States.

### What book assets does the IRS report for C I O S?

For the tax period ending June 2025, the IRS lists year-end book assets of USD 109,157,234.

### What does the IRS Income Amount for C I O S represent?

For the tax period ending June 2025, the IRS-computed Income Amount is USD 25,309,267. For private foundations, this extract field combines total revenue with specified cost-of-goods and cost-basis amounts from Form 990-PF.

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Updated: 2026-10-15T14:30:23.520Z

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