Montana · Nonprofit
MISSOULA DEVELOPMENTAL SERVICE CORP
MISSOULA DEVELOPMENTAL SERVICE CORP (Montana) receives grants from 3 organizations whose IRS filings report $6,657 to it, the largest being MISSOULA COMMUNITY FOUNDATION ($5,168). 1 of them have funded it in more than one year, and 85% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2025
- $11M
- Funders on record
- 3
- Grants received
- $7k
- Net assets
- $9.4M
What Missoula Developmental Service Corp does
Mission
Mdsc, doing business as the arc western montana, provides people with developmental disabilities and their families with the skills, tools, and supports that foster self-determination and inclusion, so they thrive as integrated members in their communities.
As stated on its FY2025 Form 990.
Programs
Intensive adult community home: the corporation provides residential habilitative services for adult individuals with intellectual and developmental disabilities in congregate living environments. Direct care professionals provide assistance with daily living skills and activities.
$5,100,726 spent52% of program spendingIntensive adult habilitation: the corporation provides day support work and retirement services for adult individuals with intellectual and developmental disabilities. Activities and programs are conducted at the day services activity center and within the community.
$2,778,329 spent$30,255 earned by the program28% of program spendingRoom and board: individuals receiving community home services live in mdsc group homes located throughout missoula. Individuals pay a monthly room and board fee to pay for food, supplies, utilities and repairs and maintenance of the homes.
$676,385 spent$646,711 earned by the program7% of program spendingBehavioral support and nursing services: the corporation provides behavioral analysis support and nursing services for individuals with intellectual and developmental disabilities.other support services: mdsc receives one-time grants from various community, state or federal levels to provide goods or services to meet the special needs of individuals served.
$1,224,966 spent$1,123 earned by the program13% of program spending
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $9,780,406.
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.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2023 to 2024, from $7.0M to $8.9M (+28%).
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.
Government-grant reliance: 2017 91% · 2018 89% · 2019 90% · 2020 91% · 2021 89% · 2022 81% · 2023 89% · 2024 87% · 2025 89%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 9 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.
Chief executive
Aaron Atkinson
CEO
Board chair
Shawna Hanson
Chairperson
As listed on its FY2025 Form 990.
The chief executive listed changed between the FY2022 and FY2023 filings.
Who funds it, year by year
2018 → 2023: the base narrowed from 2 funders to 1 funder, grant income fell $6k → $120.
2 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 85% 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 MISSOULA DEVELOPMENTAL SERVICE CORP’s funders (the co-funder graph). 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
MISSOULA DEVELOPMENTAL SERVICE CORP leans on a few funders — its largest provides 78% 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
85% 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 MISSOULA DEVELOPMENTAL SERVICE CORP.
Largest funder’s share by year: 2018 84% · 2020 100% · 2021 100% · 2022 100% · 2023 100% — 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.
Where its funders are
85% of MISSOULA DEVELOPMENTAL SERVICE CORP'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 $1k that is directly attributable, 100% of it comes from Montana funders.
Funder states come from each funder’s own filing. $6k 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.
Organizations like MISSOULA DEVELOPMENTAL SERVICE CORP
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 Montana
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
100% of spending goes to programs.
Governance
Public support
98%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Screen this organization
A dated, signed PDF of the compliance screen for MISSOULA DEVELOPMENTAL SERVICE CORP: 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 MISSOULA DEVELOPMENTAL SERVICE CORP?
- MISSOULA DEVELOPMENTAL SERVICE CORP (Montana) receives grants from 3 organizations whose IRS filings report $6,657 to it, the largest being MISSOULA COMMUNITY FOUNDATION ($5,168). 1 of them have funded it in more than one year, and 85% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does MISSOULA DEVELOPMENTAL SERVICE CORP have?
- IRS filings report 3 organizations giving $6,657 in grants to MISSOULA DEVELOPMENTAL SERVICE CORP, 1 of which have funded it in more than one year.
- Who is the largest funder of MISSOULA DEVELOPMENTAL SERVICE CORP?
- MISSOULA COMMUNITY FOUNDATION is the largest funder on record, with $5,168 in grants. The full list of funders is on this page.
- How can an organization like MISSOULA DEVELOPMENTAL SERVICE CORP find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Montana. 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 Missoula Developmental Service →
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 3 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