Question 1

Is SIR a tax-exempt 501(c)(3)?

Accepted Answer

Yes — SIR is recognised by the IRS as a 501(c)(6) organisation (EIN 39-1345331). The IRS recognised SIR as tax-exempt in March 1980.

Question 2

What is SIR's EIN?

Accepted Answer

SIR's Employer Identification Number (EIN) is 39-1345331. The EIN was assigned by the IRS in March 1980. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does SIR do?

Accepted Answer

To improve health and quality of life through the practice of interventional radiology.

Question 4

Where is SIR located?

Accepted Answer

SIR is located at 3975 Fair Ridge Drive 400n, Fairfax, VA, 22033.

Question 5

When was SIR founded or recognised by the IRS?

Accepted Answer

SIR was recognised by the IRS as a tax-exempt organisation in March 1980. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is SIR's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2024), SIR reported $15.1M in total revenue and $14.7M in total expenses.

Question 7

Has SIR been auto-revoked by the IRS?

Accepted Answer

No — SIR (EIN 39-1345331) 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.

Question 8

Is SIR listed in IRS Publication 78?

Accepted Answer

Givalgo Discover did not find SIR 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.

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SIR

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