Massachusetts · Nonprofit
BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC
BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC (Massachusetts) receives grants from 18 organizations whose IRS filings report $1,151,050 to it, the largest being THE MASS MENTORING PARTNERSHIP INC ($316,964). 13 of them have funded it in more than one year.
- Revenue FY2025
- $703k
- Funders on record
- 18
- Grants received
- $1.2M
- Net assets
- $247k
What Big Brothers Big Sisters of Western Massachusetts Inc does
Mission
Big Brothers Big Sisters of Western Massachusetts Inc. Matches at-risk children and teens, primarily from low-income, single-parent homes, in one-to-one mentoring relationships to screened, trained and supervised volunteers with measurable impact.
As stated on its FY2025 Form 990.
Program
Big brothers big sisters of western massachusetts conducts one program, the big brothers big sisters program. The agency delivers the program in different settings (both in the community and within public schools). The program matches at-risk youth in one-to-one long-term mentoring relationships with screened, trained and supervised volunteers.program achievements include providing services to more than 200 children during the fiscal year. Independent research has shown that the big brothers big sisters program has a significant deterrent effect on the initiative of drug and alcohol use while having an overall positive effect on academic performance.
$745,813 spent100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $745,813.
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 $244k to $488k (+100%).
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: 2019 11% · 2021 16% · 2022 15%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 6 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.
Who funds it, year by year
2017 → 2023: the base broadened from 3 funders to 11 funders, grant income rose $20k → $263k.
4 of 18 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 31% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $501k from one payer (the payer shares this organization's board, largest Hartsprings Foundation Inc). These are real filings, and they are not money BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC raised.
From the IRS filings of BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC’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
BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC leans on a few funders — its largest provides 28% of grant income and the top three 69%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
73% 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 BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC.
Largest funder’s share by year: 2017 92% · 2018 94% · 2019 51% · 2020 37% · 2021 42% · 2022 24% · 2023 32% — 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
64% of BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC's funders are still giving 3 years after their first grant; 72% 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
81% of BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC's grant income comes from Massachusetts funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $353k arriving through sponsors registered in 4 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 BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS 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 Massachusetts
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
82% of spending goes to programs.
Governance
Public support
96%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Part of a family of 1 related entity
- Hartsprings Foundation Inc · exempt
Screen this organization
A dated, signed PDF of the compliance screen for BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS 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.
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 BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC?
- BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC (Massachusetts) receives grants from 18 organizations whose IRS filings report $1,151,050 to it, the largest being THE MASS MENTORING PARTNERSHIP INC ($316,964). 13 of them have funded it in more than one year.
- How many funders does BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC have?
- IRS filings report 18 organizations giving $1,151,050 in grants to BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC, 13 of which have funded it in more than one year.
- Who is the largest funder of BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC?
- THE MASS MENTORING PARTNERSHIP INC is the largest funder on record, with $316,964 in grants. The full list of funders is on this page.
- How can an organization like BIG BROTHERS BIG SISTERS OF WESTERN MASSACHUSETTS INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. 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 Big Brothers Big Sisters of Western Massachusetts →
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 18 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