Civic Intelligence

National Speleological Society

EIN 54-6026867 • 501(c)3 • Huntsville, AL

Profile

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.

6001 Pulaski PikeHuntsville, AL 35810

caves.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

14th percentile

0.01x

Higher debt load relative to assets than 14% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2025

Liabilities / Revenue

19th percentile

0.04x

Higher debt load relative to revenue than 19% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2025

Net Margin

84th percentile

37%

Higher net margin than 84% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Source year 2025

Top Officer Pay

15th percentile

$0

Higher top officer pay than 15% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • $10M-$25M nonprofits • Source year 2025

Asset Growth

58th percentile

6.7%

Faster asset growth than 58% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Annualized from 2024 to 2025

Revenue Growth

41st percentile

3.3%

Faster revenue growth than 41% of similar nonprofits.

501(c)3 • $10M-$25M nonprofits • Annualized from 2024 to 2025

Balance Sheet
Liabilities / Assets14th percentile

Assets

Up

$13,842,651

Up $869,487 (+6.7%) from 2024

Liabilities

Down

$103,991

Down $84,608 (-45%) from 2024

Net Assets

Up

$13,738,659

Up $954,094 (+7.5%) from 2024

Operations
Liabilities / Revenue19th percentileNet Margin84th percentile

Revenue

Up

$2,386,048

Up $76,891 (+3.3%) from 2024

Expenses

Up

$1,512,516

Up $405,594 (+37%) from 2024

Net Income

Down

$873,532

Down $328,703 (-27%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth58th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$15M$10M$5.0M$0Assets 2011: $4,876,989Liabilities 2011: $114,504Net Assets 2011: $4,762,4852011Assets 2012: $6,215,747Liabilities 2012: $1,667,977Net Assets 2012: $4,547,7702012Assets 2013: $6,285,535Liabilities 2013: $1,625,098Net Assets 2013: $4,660,4372013Assets 2014: $6,663,649Liabilities 2014: $1,576,107Net Assets 2014: $5,087,5422014Assets 2015: $6,733,639Liabilities 2015: $1,530,893Net Assets 2015: $5,202,7462015Assets 2016: $6,585,593Liabilities 2016: $1,424,754Net Assets 2016: $5,160,8392016Assets 2017: $6,643,434Liabilities 2017: $348,844Net Assets 2017: $6,294,5902017Assets 2018: $6,978,967Liabilities 2018: $18,789Net Assets 2018: $6,960,1782018Assets 2019: $6,967,767Liabilities 2019: $16,392Net Assets 2019: $6,951,3752019Assets 2020: $6,957,235Liabilities 2020: $9,237Net Assets 2020: $6,947,9982020Assets 2021: $8,876,946Liabilities 2021: $30,193Net Assets 2021: $8,846,7532021Assets 2023: $11,792,348Liabilities 2023: $199,191Net Assets 2023: $11,593,1572023Assets 2024: $12,973,164Liabilities 2024: $188,599Net Assets 2024: $12,784,5652024Assets 2025: $13,842,651Liabilities 2025: $103,991Net Assets 2025: $13,738,6592025

Highlighted filing

2025

Assets$13,842,651
Liabilities$103,991
Net Assets$13,738,659
Open 2025 Filing

Operations Trend

Revenue Growth41st percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$3.0M$2.0M$1.0M$0-$1.0MRevenue 2011: $1,008,167Expenses 2011: $739,043Net Income 2011: $269,1242011Revenue 2012: $694,178Expenses 2012: $908,893Net Income 2012: -$214,7152012Expenses 2013: $1,081,9432013Revenue 2014: $1,331,361Expenses 2014: $904,256Net Income 2014: $427,1052014Revenue 2015: $1,245,204Expenses 2015: $980,218Net Income 2015: $264,9862015Revenue 2016: $1,214,576Expenses 2016: $977,343Net Income 2016: $237,2332016Revenue 2017: $1,900,329Expenses 2017: $954,145Net Income 2017: $946,1842017Revenue 2018: $1,431,359Expenses 2018: $821,037Net Income 2018: $610,3222018Revenue 2019: $1,093,072Expenses 2019: $951,431Net Income 2019: $141,6412019Revenue 2020: $1,185,157Expenses 2020: $807,135Net Income 2020: $378,0222020Revenue 2021: $2,382,898Expenses 2021: $448,401Net Income 2021: $1,934,4972021Revenue 2023: $1,975,576Expenses 2023: $781,835Net Income 2023: $1,193,7412023Revenue 2024: $2,309,157Expenses 2024: $1,106,922Net Income 2024: $1,202,2352024Revenue 2025: $2,386,048Expenses 2025: $1,512,516Net Income 2025: $873,5322025

Highlighted filing

2025

Revenue$2,386,048
Expenses$1,512,516
Net Income$873,532
Open 2025 Filing

Filings

Most recent year

2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.

Open filing
Assets
$13,842,651
Liabilities
$103,991
Net assets
$13,738,659
Revenue
$2,386,048
Expenses
$1,512,516
Net income
$873,532
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Facts available. Structured filing facts are available, but richer extracted sections are limited.$13.8$0.10$13.7$2.39$1.51$0.87
2024Detailed filing. Detailed filing data is available for this year.$13.0$0.19$12.8$2.31$1.11$1.20
2023Detailed filing. Detailed filing data is available for this year.$11.8$0.20$11.6$1.98$0.78$1.19
2021Detailed filing. Detailed filing data is available for this year.$8.88$0.03$8.85$2.38$0.45$1.93
2020Detailed filing. Detailed filing data is available for this year.$6.96$0.01$6.95$1.19$0.81$0.38
2019Detailed filing. Detailed filing data is available for this year.$6.97$0.02$6.95$1.09$0.95$0.14
2018Detailed filing. Detailed filing data is available for this year.$6.98$0.02$6.96$1.43$0.82$0.61
2017Detailed filing. Detailed filing data is available for this year.$6.64$0.35$6.29$1.90$0.95$0.95
2016Detailed filing. Detailed filing data is available for this year.$6.59$1.42$5.16$1.21$0.98$0.24
2015Detailed filing. Detailed filing data is available for this year.$6.73$1.53$5.20$1.25$0.98$0.26
2014Detailed filing. Detailed filing data is available for this year.$6.66$1.58$5.09$1.33$0.90$0.43
2013Facts available. Structured filing facts are available, but richer extracted sections are limited.$6.29$1.63$4.66$1.08
2012Summary only. Only limited summary data is available for this year.$6.22$1.67$4.55$0.69$0.91$0.21
2011Summary only. Only limited summary data is available for this year.$4.88$0.11$4.76$1.01$0.74$0.27
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Apr 1, 2024 to Mar 31, 2025
Signed
Oct 3, 2025
Return Version
2024v5.1
Gross Receipts
$2,421,619
Mission and Program Overview

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

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.

Balance Sheet Detail
LineBeginningEndChange
Assets
Rtn Earn Endowment Incm Other Fnds$12,775,960$13,738,659▲ $962,699
Investments Other Securities$9,216,090$10,391,979▲ $1,175,889
Land, Buildings, and Equipment, Net$3,012,601$2,628,541▼ $384,060
Cash and Non-Interest-Bearing Accounts$477,665$535,886▲ $58,221
Inventories for Sale or Use$176,388$210,029▲ $33,641
Prepaid Expenses and Deferred Charges$49,833$71,986▲ $22,153
Accounts Receivable$31,982$7,630▼ $24,352
Savings and Temporary Cash Investments$0$0→ $0
Other Notes and Loans Receivable, Net$0$0→ $0
Pledges and Grants Receivable$0$0→ $0
Receivable From Disqualified Prsn$0$0→ $0
Receivables From Officers Etc$0$0→ $0
Investments Program Related$0$0→ $0
Investments in Publicly Traded Securities$0$0→ $0
Pd in Cap Srpls Land Bldg Eqp Fund$0$0→ $0
Cap Stk Tr Prin Current Funds$0$0→ $0
Intangible Assets$0$0→ $0
Loans From Officers Directors$0$0→ $0
Total Assets$12,964,559$13,842,651▲ $878,092
Other Assets Total$0$-3,400▼ $3,400
Liabilities
Accounts Payable and Accrued Expenses$14,524$56,311▲ $41,787
Other Liabilities$174,075$47,680▼ $126,395
Grants Payable$0$0→ $0
Mortgage Notes Payable Secured by Investment Property$0$0→ $0
Unsecured Notes Loans Payable$0$0→ $0
Deferred Revenue$0$0→ $0
Escrow Account Liability$0$0→ $0
Tax Exempt Bond Liabilities$0$0→ $0
Total Liabilities$188,599$103,991▼ $84,608
Net Assets / Fund Balance
Total Net Assets Fund Balance$12,775,960$13,738,659▲ $962,699
Total Liabilities and Net Assets / Fund Balance$12,964,559$13,842,650▲ $878,091

Asset Categories

AssetBook ValueDepreciationBasis
Buildings$874,752$890,746$1,765,498
Land$1,257,641-$1,257,641
Leasehold Improvements$469,100$297,313$766,413
Other Land Buildings$26,165$165,520$191,685
Equipment$883-$883
Other Securities$4,551,541--
Compensation and Service Providers
Top Officer Pay15th percentile

Board Members and Trustees

NameTitle
Peter JohnsonChair of the Directorate
Anna PearceDirector
Aria MildicrDirector
Dennis MelkoDirector
Josh SchultzDirector
Michael MansurDirector
Mike BackeDirector
Miki KablerDirector
Nina MartinDirector
Rebecca McNabbDirector
Sarah ArpinDirector
Zach EnglebertDirector
Revenue and Support

Revenue Composition

Contributions and Grants
$1,102,420
Program Service Revenue
$541,080
Investment Income
$0
Other Revenue
$742,548
All Other Contributions
$836,781
Change in Net Assets
$873,532
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$1,339,962
Salaries, Compensation, and Employee Benefits$137,518
Grants and Similar Amounts Paid$35,036
Total Fundraising Expense$250
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Depreciation Depletion$0$346,757$0$346,757
Conferences and Meetings$324,108$0$0$324,108
Occupancy$0$195,275$0$195,275
Other Salaries and Wages$0$132,309$0$132,309
Other Expenses$123,326$0$0$123,326
Fees for Services Accounting$0$53,085$0$53,085
Fees for Services Legal$0$42,287$0$42,287
All Other Expenses$0$37,090$0$37,089
Grants to Domestic Individuals$35,036--$35,036
Information Technology$0$30,563$0$30,563
Office Expenses$0$8,102$0$8,102
Other Employee Benefits$0$5,209$0$5,209
Travel$0$1,206$0$1,206
Advertising$0$0$250$250
Royalties$0$218$0$218
Total Functional Expenses$482,470$1,029,797$250$1,512,516
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Direct Expenses$0
Fundraising Gross Income$0
Gaming Direct Expenses$0
Gaming Gross Income$0
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Loans from Officers, Directors, Trustees, and Key Employees$0$0→ $0
Receivables from Disqualified Persons$0$0→ $0
Receivables from Officers, Directors, Trustees, and Key Employees$0$0→ $0
Debt and Bond Financing

Other Reported Liabilities

LiabilityAmount
Deferred Revenue$34,917
Prepaid Ads for NSS News$8,856
Venue Rental damage deposit$3,175
Credit Cards$2,129
Direct Deposit Payable$688
Payroll Liabilities$-2,085
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Backup withholding compliance
No
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
No
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Part VI, Section B, Line 1

“There is no difference”

Part VI, Line 11B

“No review was or will be conducted.”

Part VI, Line 19

“Financial statements are provided with the Secretary-Treasurer report.”

Part VI Line 19

“| Explanation:| Financials are provided with Secretary-Treasurer report on the website.”

Filing and Contact Details

Filer

Filer Name
National Speleological Society
EIN
54-6026867
In Care Of
% Kristine Ebrey
Phone
4239913034
Address
6001 PULASKI PIKE NW, Huntsville, AL 35810-1122

Signing Officer

Name
Kristine Ebrey
Title
Secretary- Treasurer
Phone
4239913034
Signed
2025-10-03

Organization Details

Principal Officer
Kristine Ebrey
Formed
2008
Legal Domicile
Al
Voting Board Members
12
Independent Board Members
0
Employees
3
Volunteers
100
Supplemental Narrative

Additional Explanations

Part III Line 4

“| Explanation:| Member services bookstore fine art salon misc awards venue and other. We maintain a national headquarters and extensive library. We also provide awards for scientific research and conservation activities and grants to support exploration of caves scientific studies protection and conservation of caves and educational activities.”

Part IV Line 11

“| Explanation:| No review was or will be conducted”

Part IX Line 24

“| Explanation:| Cave Ave Utilities $5006 Bad Debt $1200 Equipment $1298 Library and Museum $902 Sales Tax Exp $24 Facility rental and exp $28659”

Raw XML AppendixShowing 400 of 767 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990/Form990PartVIISectionAGrp/PersonNm0Peter Johnson
IRS990/Form990PartVIISectionAGrp/PersonNm1Rebecca McNabb
IRS990/Form990PartVIISectionAGrp/PersonNm2Nina Martin
IRS990/Form990PartVIISectionAGrp/PersonNm3Miki Kabler
IRS990/Form990PartVIISectionAGrp/PersonNm4Zach Englebert
IRS990/Form990PartVIISectionAGrp/PersonNm5Mike Backe
IRS990/Form990PartVIISectionAGrp/PersonNm6Josh Schultz
IRS990/Form990PartVIISectionAGrp/PersonNm7Anna Pearce
IRS990/Form990PartVIISectionAGrp/PersonNm8Michael Mansur
IRS990/Form990PartVIISectionAGrp/PersonNm9Sarah Arpin
IRS990/Form990PartVIISectionAGrp/PersonNm10Aria Mildicr
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IRS990/MissionDesc0THE 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.
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