Massachusetts · Nonprofit
BIG SISTER ASSOCIATION OF GREATER BOSTON INC
BIG SISTER ASSOCIATION OF GREATER BOSTON INC (Massachusetts) receives grants from 121 organizations whose IRS filings report $11,644,124 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($2,746,797). 79 of them have funded it in more than one year.
- Revenue FY2025
- $39k
- Funders on record
- 121
- Grants received
- $12M
- Net assets
- $0
What Big Sister Association of Greater Boston Inc does
Mission
Big sister's mission is to ignite girls' passion and power to succeed through positive mentoring relationships with women and enrichment programs that support girls' healthy development.
As stated on its FY2025 Form 990-EZ.
Program
As of january 30, 2025, big sister association of greater boston, inc. Merged with big brothers big sisters of eastern massachusetts, inc.
$84,678 spent100% of program spending
The program described on its FY2025 Form 990-EZ. Program spending in total: $84,678.
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 $4.6M to $2.0M (−56%).
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: 2020 18% · 2021 27% · 2023 16% · 2024 11%. 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 25 funders to 54 funders, grant income rose $1.3M → $1.4M.
18 of 121 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 BIG SISTER ASSOCIATION OF GREATER BOSTON INC’s funders (the co-funder graph). Top 30 of 121 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
BIG SISTER ASSOCIATION OF GREATER BOSTON INC has a broad base — no single funder exceeds 24% of grant income, and it takes 5 funders to reach half.
the vertical line marks half of all grant income — 5 funders to its left
70% 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 SISTER ASSOCIATION OF GREATER BOSTON INC.
Largest funder’s share by year: 2017 21% · 2018 33% · 2019 25% · 2020 29% · 2021 21% · 2022 21% · 2023 21% — broadly stable.
“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
48% of BIG SISTER ASSOCIATION OF GREATER BOSTON INC's funders are still giving 3 years after their first grant; 65% 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
74% of BIG SISTER ASSOCIATION OF GREATER BOSTON 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. $4.2M arriving through sponsors registered in 12 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 SISTER ASSOCIATION OF GREATER BOSTON 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.
Public support
98%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 3 states
Screen this organization
A dated, signed PDF of the compliance screen for BIG SISTER ASSOCIATION OF GREATER BOSTON 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 SISTER ASSOCIATION OF GREATER BOSTON INC?
- BIG SISTER ASSOCIATION OF GREATER BOSTON INC (Massachusetts) receives grants from 121 organizations whose IRS filings report $11,644,124 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($2,746,797). 79 of them have funded it in more than one year.
- How many funders does BIG SISTER ASSOCIATION OF GREATER BOSTON INC have?
- IRS filings report 121 organizations giving $11,644,124 in grants to BIG SISTER ASSOCIATION OF GREATER BOSTON INC, 79 of which have funded it in more than one year.
- Who is the largest funder of BIG SISTER ASSOCIATION OF GREATER BOSTON INC?
- FIDELITY INVESTMENTS CHARITABLE GIFT FUND is the largest funder on record, with $2,746,797 in grants. The full list of funders is on this page.
- How can an organization like BIG SISTER ASSOCIATION OF GREATER BOSTON 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 Sister Association of Greater Boston →
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 121 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