Tennessee · Nonprofit
FRIENDS OF RADNOR LAKE
FRIENDS OF RADNOR LAKE (Tennessee) receives grants from 60 organizations whose IRS filings report $2,525,347 to it, the largest being Landen Family Foundation Inc ($477,000). 42 of them have funded it in more than one year.
- Revenue FY2025
- $4.6M
- Funders on record
- 60
- Grants received
- $2.5M
- Net assets
- $6.5M
What Friends of Radnor Lake does
Mission
Support protection, maintenance, and improvement of radnor lake state natural area-its natural environment, habitat, facilities, and equipment and to educate the general public on the importance of the area.
As stated on its FY2025 Form 990.
Programs
Ongoing support for projects and programs at radnor lake state natural area which are not funded by the state.Friends of Radnor Lake funds the volunteer program at radnor lake which engaged over 1,000 volunteers in the fiscal year. Volunteer engagement includes individuals, corporations, and school, church and civic groups. Volunteers provide critical assistance in trail maintenance, recovery from storm damage, invasive plant removal and wetlands clean-up throughout the year. In addition, volunteers engage in notable volunteer events including world wetlands day, invasive plant removal week, weed wrangle, national trails day, national public lands day and international mountain day. Park staff manage all volunteers on park property and provide education about the natural area and how to be good stewards of the environment.junior rangers intern programs have been hosted every summer for the last 23 years, engaging teenagers in a six-day internship program which introduces them to conservation and environmental stewardship practices. Daily work includes trail mulching, maintenance projects within the park and at the barbara j. Mapp aviary education center, and other educational…
$1,733,716 spentof which $1,330,082 as grants$59,377 earned by the program86% of program spendingSupport the protection of the natural area in and surrounding radnor lake state natural area through identification of land acquisition opportunities that meet our criteria which includes viewshed, watershed, wildlife and plant life protection, park security and hiking experience. In fy 2025, Friends of Radnor Lake purchased one acre of viewshed-watershed property and transitioned this parcel from residential to native grasslands. Friends of Radnor Lake also completed 9-acre land acquisition which remains in our possession.
$252,106 spentof which $46,724 as grants12% of program spendingProvide education of environmental stewardship practices, park activities, volunteer program and sponsored projects through print and electronic newsletters, website and social media, and environmental awards. Park activities during the year include birding and wildflower hikes, off-trail guided hikes and wheelchair accessible tours, hikes with our research teams, and celebrations of world wetlands day, rachel carson day, national trails day, american eagle day, national public lands day and international mountain day. All park activities supported by Friends of Radnor Lake are managed by radnor lake park staff.
$32,146 spent$8,375 earned by the program2% of program spendingSupport the protection of the natural area in and surrounding radnor lake state natural area through identification of land acquisition opportunities that meet our criteria which includes viewshed, watershed, wildlife and plant life protection, park security and hiking experience. In fy 2025, Friends of Radnor Lake purchased two properties. One 2.99 acre lot was purchased to support the harris ridge trail project and one 8.45 acre lot adjacent to the park was protected for wildlife habitat.
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $2,017,968.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2022 to 2023, from $9.1M to $3.3M (−63%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
77% of FRIENDS OF RADNOR LAKE’s revenue is contributions — about as donation-reliant as the typical peer (88% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 8 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Who funds it, year by year
2017 → 2023: the base broadened from 19 funders to 29 funders, grant income rose $131k → $349k.
11 of 60 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 36% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of FRIENDS OF RADNOR LAKE’s funders (the co-funder graph). Top 30 of 60 funders by total. Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
FRIENDS OF RADNOR LAKE has a broad base — no single funder exceeds 19% of grant income, and it takes 4 funders to reach half.
the vertical line marks half of all grant income — 4 funders to its left
36% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund FRIENDS OF RADNOR LAKE.
Largest funder’s share by year: 2017 27% · 2018 17% · 2019 68% · 2020 38% · 2021 46% · 2022 20% · 2023 34% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
64% of FRIENDS OF RADNOR LAKE's funders are still giving 3 years after their first grant; 70% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
60% of FRIENDS OF RADNOR LAKE's grant income comes from Tennessee funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $918k arriving through sponsors registered in 9 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
FRIENDS OF RADNOR LAKE runs a healthier operating margin than three-quarters of the 1,209 environment nonprofits its size.
this organization peer median middle 50% of peers· 1,209 environment nonprofits $1M–$10M, FY2025
Organizations like FRIENDS OF RADNOR LAKE
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Tennessee
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
91% of spending goes to programs.
Governance
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for FRIENDS OF RADNOR LAKE: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds FRIENDS OF RADNOR LAKE?
- FRIENDS OF RADNOR LAKE (Tennessee) receives grants from 60 organizations whose IRS filings report $2,525,347 to it, the largest being Landen Family Foundation Inc ($477,000). 42 of them have funded it in more than one year.
- How many funders does FRIENDS OF RADNOR LAKE have?
- IRS filings report 60 organizations giving $2,525,347 in grants to FRIENDS OF RADNOR LAKE, 42 of which have funded it in more than one year.
- Who is the largest funder of FRIENDS OF RADNOR LAKE?
- Landen Family Foundation Inc is the largest funder on record, with $477,000 in grants. The full list of funders is on this page.
- How can an organization like FRIENDS OF RADNOR LAKE find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Tennessee. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 60 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing