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Florida · Nonprofit

GUMBO LIMBO COASTAL STEWARDS INC

GUMBO LIMBO COASTAL STEWARDS INC (Florida) receives grants from 33 organizations whose IRS filings report $765,893 to it, the largest being KNOPF FAMILY FOUNDATION INC ($175,000). 18 of them have funded it in more than one year.

Revenue FY2025
$274k
Funders on record
33
Grants received
$766k
Net assets
$735k
18/33 repeat funderspeak grant-dependency 21%
01What it does

What Gumbo Limbo Coastal Stewards Inc does

Mission

Gumbo limbo coastal stewards inspires people to support stewardship and research of coastal and marine ecosystems, sponsors sea turtle conservation, and advocates for the enhancement of the gumbo limbo nature center.

As stated on its FY2025 Form 990.

Programs

  1. Marine Life

    $280,085 spent
    52% of program spending
  2. Ops/Program

    $114,116 spent
    21% of program spending
  3. Programs / Education

    $94,768 spent
    17% of program spending
  4. Coastal Steward/Membership

    $22,407 spent
    4% of program spending
  5. Gift Store

    $16,182 spent
    3% of program spending
  6. Scholarship

    $10,000 spent
    2% of program spending
  7. Awareness/Outreach

    $5,371 spent
    1% of program spending

The 7 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $542,929.

02The organization over time

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.

100 = 20172017 Revenue 100 ($1.1M) Expenses 100 ($666k) Net assets 100 ($2.5M)2018 Revenue 112 ($1.2M) Expenses 123 ($819k) Net assets 114 ($2.9M)2019 Revenue 150 ($1.7M) Expenses 138 ($920k) Net assets 153 ($3.9M)2020 Revenue 80 ($885k) Expenses 160 ($1.1M) Net assets 145 ($3.7M)2021 Revenue 51 ($565k) Expenses 138 ($920k) Net assets 141 ($3.6M)2022 Revenue 94 ($1.0M) Expenses 159 ($1.1M) Net assets 123 ($3.1M)2023 Revenue 46 ($511k) Expenses 248 ($1.7M) Net assets 87 ($2.2M)2024 Revenue 45 ($499k) Expenses 201 ($1.3M) Net assets 58 ($1.5M)2025 Revenue 25 ($274k) Expenses 149 ($992k) Net assets 29 ($735k)
'17'18'19'20'21'22'23'24'25
Revenue (25)Expenses (149)Net assets (29)Peer revenue range

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2018 to 2019, from $2.9M to $3.9M (+34%).

$2.5M
$2.9M
$3.9M
$3.8M
$3.6M
$3.2M
$2.4M
$1.6M
$782k
'17'18'19'20'21'22'23'24'25
Total assetsTotal liabilities

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.

2017
2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

Government-grant reliance: 2021 22%. Grants only. Government contracts and fees sit inside program revenue.

34% of GUMBO LIMBO COASTAL STEWARDS INC’s revenue is contributions — about as donation-reliant as the typical peer (64% for the typical peer).

This organization
Typical peer · 19,547 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 6 of the last 9 reported years ran a deficit.

$445k
’17
$430k
’18
$749k
’19
−$183k
’20
−$355k
’21
−$14k
’22
−$1.1M
’23
−$839k
’24
−$718k
’25
6.8
months of
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.

Chief executive

John Holloway

President & CEO

Board chair

Manjunath Pendakur

Chairman

As listed on its FY2025 Form 990.

'17'18'19'20'21'22'23'24'25
Listed99891313151412
Joined·+3+4+1+4+3+3+5+0
No longer listed·35003162
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 8 funders to 11 funders, grant income rose $83k → $109k.

7 of 33 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 15% 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 GUMBO LIMBO COASTAL STEWARDS INC’s funders (the co-funder graph). Top 30 of 33 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

GUMBO LIMBO COASTAL STEWARDS INC has a broad base — no single funder exceeds 23% 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

23%
largest funder
47%
top three
~10
effective funders

Largest funder’s share by year: 2017 48% · 2018 40% · 2019 31% · 2020 49% · 2021 47% · 2022 29% · 2023 27% — diversifying over time.

“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

44% of GUMBO LIMBO COASTAL STEWARDS INC's funders are still giving 3 years after their first grant; 55% give in more than one year at all.

first grant+1y+2y+3y+4y+5y+6y

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

GUMBO LIMBO COASTAL STEWARDS INC draws 69% of its grant income from funders outside Florida, across 12 states in all.

IL
WI
MI
NY
MA
PA
CT
CA
KY
NC
TX
FL

In-state vs out-of-state, by year

’17
’18
’19
’20
’21
’22
’23
Florida out of state home

Funder states come from each funder’s own filing. $118k arriving through sponsors registered in 7 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.

04Its place in the field

Against its field

GUMBO LIMBO COASTAL STEWARDS INC is better cushioned than half of the 11,634 arts & culture nonprofits its size.

Operating margin−263% · bottom quartile
Months of reserve6.8mo · above the median
Revenue growth (annualized)−16% · bottom quartile

this organization peer median middle 50% of peers· 11,634 arts & culture nonprofits $100k–$1M, FY2025

Organizations like GUMBO LIMBO COASTAL STEWARDS INC

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 Florida

Nationally

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Where the money goes

55% of spending goes to programs.

Program 55%Management 32%Fundraising 14%

Governance

11
board members
100%
independent
✓Conflict-of-interest policy✓Whistleblower policy✓Document retention✓Board reviewed the 990–Audited financials

Public support

60%

Share of support from the public (Schedule A) — the basis for its public-charity status.

Footprint & structure

Files a return copy in 1 state

FL

Screen this organization

A dated, signed PDF of the compliance screen for GUMBO LIMBO COASTAL STEWARDS INC: 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.

A paid feature, included from the $75 plan up. Sign in to download.

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 GUMBO LIMBO COASTAL STEWARDS INC?
GUMBO LIMBO COASTAL STEWARDS INC (Florida) receives grants from 33 organizations whose IRS filings report $765,893 to it, the largest being KNOPF FAMILY FOUNDATION INC ($175,000). 18 of them have funded it in more than one year.
How many funders does GUMBO LIMBO COASTAL STEWARDS INC have?
IRS filings report 33 organizations giving $765,893 in grants to GUMBO LIMBO COASTAL STEWARDS INC, 18 of which have funded it in more than one year.
Who is the largest funder of GUMBO LIMBO COASTAL STEWARDS INC?
KNOPF FAMILY FOUNDATION INC is the largest funder on record, with $175,000 in grants. The full list of funders is on this page.
How can an organization like GUMBO LIMBO COASTAL STEWARDS INC find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Florida. 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 33 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 14, 2026. What this page cannot tell you · view filing