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Indiana · Nonprofit

HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE

HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE (Indiana) receives grants from 4 organizations whose IRS filings report $136,543 to it, the largest being DONOR ADVISED CHARITABLE GIVING INC ($132,500). 3 of them have funded it in more than one year, and 97% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.

Revenue FY2024
$318k
Funders on record
4
Grants received
$137k
Net assets
$612k
3/4 repeat funderspeak grant-dependency 14%
01What it does

What Heritage Museum Foundation at Grissom Air Reserve Base does

Mission

Educational - historic

As stated on its FY2024 Form 990.

Program

  1. Historic preservation collection and display of the heritage of grissom afb, including display of historic aircraft equipment & memorabilia from various periods of time. Exhibit displayed daily.

    $242,569 spent$169,221 earned by the program
    100% of program spending

The program described on its FY2024 Form 990. Program spending in total: $242,569.

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 ($185k) Expenses 100 ($140k) Net assets 100 ($273k)2018 Revenue 110 ($204k) Expenses 135 ($189k) Net assets 96 ($262k)2019 Revenue 200 ($370k) Expenses 164 ($230k) Net assets 147 ($403k)2020 Revenue 142 ($263k) Expenses 147 ($206k) Net assets 168 ($460k)2021 Revenue 155 ($286k) Expenses 134 ($188k) Net assets 205 ($559k)2022 Revenue 129 ($238k) Expenses 165 ($231k) Net assets 207 ($565k)2023 Revenue 149 ($275k) Expenses 186 ($261k) Net assets 212 ($579k)2024 Revenue 172 ($318k) Expenses 204 ($285k) Net assets 224 ($612k)
'17'18'19'20'21'22'23'24
Revenue (172)Expenses (204)Net assets (224)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 $264k to $405k (+53%).

$275k
$264k
$405k
$464k
$562k
$571k
$586k
$626k
'17'18'19'20'21'22'23'24
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
ContributionsProgram revenueInvestmentOther

Government-grant reliance: 2017 41% · 2018 38% · 2019 21% · 2020 45% · 2021 32% · 2022 32% · 2023 27% · 2024 24%. Grants only. Government contracts and fees sit inside program revenue.

46% of HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE’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. 0 of the last 8 reported years ran a deficit.

$45k
’17
$15k
’18
$140k
’19
$58k
’20
$99k
’21
$7k
’22
$14k
’23
$33k
’24
14
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

Thomas Jennings

Executive director

Board chair

Lucas Bowman

Chairman of the board

As listed on its FY2024 Form 990.

The chief executive listed changed between the FY2017 and FY2018 filings.

'17'18'19'20'21'22'23'24
Listed1410131614151313
Joined·+2+4+5+5+1+0+2
No longer listed·6127022
03Who funds it

Who funds it, year by year

2019 → 2023: the base held at 2 funders, grant income fell $50k → $714.

Funder
'19
'20
'21
'22
'23
'24*
'25*
'26*
total
funders
2
3
2
3
2
2
1
1

3 of 4 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 97% 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 HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE’s funders (the co-funder graph). Top 3 of 4 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

HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE leans on a few funders — its largest provides 97% of grant income and the top three 100%; half comes from just 1 funder.

the vertical line marks half of all grant income — 1 funder to its left

97% 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 HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE.

97%
largest funder
100%
top three
~1
effective funders

Largest funder’s share by year: 2019 100% · 2020 98% · 2021 94% · 2022 92% · 2023 92% — 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.

Where its funders are

97% of HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $4k that is directly attributable, 100% of it comes from funders outside Indiana, across 1 state.

MN

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

’19
’20
’21
’22
’23
Indiana out of state home

Funder states come from each funder’s own filing. $133k arriving through sponsors registered in 2 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

HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE holds deeper cash reserves than three-quarters of the 17,936 arts & culture nonprofits its size.

Operating margin10% · above the median
Months of reserve14.2mo · top quartile
Revenue growth (annualized)8% · above the median

this organization peer median middle 50% of peers· 17,936 arts & culture nonprofits $100k–$1M, FY2024

Organizations like HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE

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 Indiana

Nationally

05Profile & governance

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

Where the money goes

85% of spending goes to programs.

Program 85%Management 14%Fundraising 1%

Governance

13
board members
100%
independent
–Conflict-of-interest policy–Whistleblower policy–Document retention–Board reviewed the 990–Audited financials

Public support

97%

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

Footprint & structure

Files a return copy in 1 state

IN

Screen this organization

A dated, signed PDF of the compliance screen for HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE: 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.

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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 HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE?
HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE (Indiana) receives grants from 4 organizations whose IRS filings report $136,543 to it, the largest being DONOR ADVISED CHARITABLE GIVING INC ($132,500). 3 of them have funded it in more than one year, and 97% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
How many funders does HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE have?
IRS filings report 4 organizations giving $136,543 in grants to HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE, 3 of which have funded it in more than one year.
Who is the largest funder of HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE?
DONOR ADVISED CHARITABLE GIVING INC is the largest funder on record, with $132,500 in grants. The full list of funders is on this page.
How can an organization like HERITAGE MUSEUM FOUNDATION AT GRISSOM AIR RESERVE BASE find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Indiana. The funding by cause and by state pages list the largest funders for a given area and how to approach them.

Play a game about who funds Heritage Museum Foundation at Grissom Air Reserve Base →

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 4 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