Mission
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.
Public Charity
National Speleological Society
National Speleological Society is a nonprofit organization categorized as Public Charity based in Huntsville, AL. Its most recent IRS filing (2025) reports revenue of $2.4M, expenses of $1.5M, total assets of $13.8M. Imperigo tracks 3 reported grant relationships connected to this organization totaling approximately $24K.
EIN: 546026867
Huntsville, AL
Latest filing: 2025
Total Revenue$2.4M
Total Expenses$1.5M
Total Assets$13.8M
Grant Records3
Funding Total$24K
Filing Years2020–2025
Sample Grants Received
SEE 2 IN TOP THREE
$12,654
RALPH W. STONE RESEARCH FUND
$5,500
RALPH W. STONE RESEARCH FUND
$5,500
Showing up to 5 of 3 total records — full history available with membership.
Officers & Directors
Director
Anna Pearce
Director
Aria Mildicr
Director
Dennis Melko
Director
Josh Schultz
Director
Michael Mansur
Director
Mike Backe
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $2.4M | $1.5M | $13.8M |
| 2024 | $2.3M | $1.1M | $13.0M |
| 2023 | $2.0M | $782K | $11.8M |
| 2021 | $2.4M | $448K | $8.9M |
| 2020 | $1.2M | $807K | $7.0M |
Between 2020 and 2025, reported annual revenue grew from $1.2M to $2.4M (+101%), with total assets most recently reported at $13.8M.
Interactive year-over-year charts and full filing details available with membership.