Nonprofit screen
Screen a listFriends of Mammoth Cave National Park
Can you give?
Listed with the IRS. Every screen came back clear.
A 501(c)(3) on Publication 78 and the IRS master file.
- IRS listing
- Listed
- Revocation
- None
- IRS files
- Agree
- Sanctions
- No match
- IRS bulletin
- No notice
- California
- No record
- Charity type
- 509(a)(1)
$171krevenue
FY2025 · +110% in 3 yrs4 of 8years filed
’18’19’20’21’22’23’24’25
Revenue and spendingRevenueSpendingDeficit
Against similar nonprofits FY2025
Operating margin34.1%
Revenue growth (annualized)+9.1%
Middle half of peersMedianFriends of Mammoth Cave National Park
Worth checking1
No returns on record for FY2018–FY2021
It filed for FY2017 and FY2022, with nothing on record in between.
IRS 990 e-file recordsIn its favor1
Growing faster than peers
Revenue up 9% a year since FY2017, faster than half of similar nonprofits.
990 Part I · peer cohort6funders
$204ka year, last 3 years
98%from its largest funder
Funder’17’18’19’20’21’22’23National Park Concessions IncNew in FY2023$600kNational Park Trust IncNew in FY2023$13kPatagoniaorgStopped after FY2018$3k$3k–Donor-advised giftsDonors not disclosed$63$70$99$80
FundedThrough a donor-advised fundStopped