Question 1

Is National Speleological Society a tax-exempt 501(c)(3)?

Accepted Answer

Yes — National Speleological Society is recognised by the IRS as a 501(c)(3) organisation (EIN 54-6026867). The IRS recognised National Speleological Society as tax-exempt in March 1946.

Question 2

What is National Speleological Society's EIN?

Accepted Answer

National Speleological Society's Employer Identification Number (EIN) is 54-6026867. The EIN was assigned by the IRS in March 1946. Donors and grantmakers use the EIN to verify tax-exempt status with the IRS.

Question 3

What does National Speleological Society do?

Accepted Answer

The NSS is dedicated to the scientific study of caves and karst protecting caves through conservation ownership stewardship education and promoting responsible cave exploration caver fellowship.

Question 4

Where is National Speleological Society located?

Accepted Answer

National Speleological Society is located at 6001 Pulaski Pike NW, Huntsville, AL, 35810.

Question 5

When was National Speleological Society founded or recognised by the IRS?

Accepted Answer

National Speleological Society was recognised by the IRS as a tax-exempt organisation in March 1946. The IRS ruling date is the earliest authoritative date available for most US nonprofits.

Question 6

What is National Speleological Society's annual revenue?

Accepted Answer

On its most recent Form 990 (fiscal year 2024), National Speleological Society reported $2.4M in total revenue and $1.5M in total expenses.

Question 7

Has National Speleological Society been auto-revoked by the IRS?

Accepted Answer

No — National Speleological Society (EIN 54-6026867) 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 National Speleological Society listed in IRS Publication 78?

Accepted Answer

Yes — National Speleological Society is listed in IRS Publication 78 as an organisation eligible to receive tax-deductible charitable contributions. Pub 78 status is the canonical IRS signal that donations to an org are deductible.

Loading profile…

National Speleological Society

Due Diligence Summary

AI Organization Overview

Mission Statement

Organization Details

Contact

Financial Snapshot

Location

Governance

Frequently asked questions about National Speleological Society