Massachusetts · Nonprofit
FATHER BILL'S & MAINSPRING INC
FATHER BILL'S & MAINSPRING INC (Massachusetts) receives grants from 108 organizations whose IRS filings report $18,563,104 to it, the largest being YAWKEY FOUNDATION II ($3,150,000). 78 of them have funded it in more than one year.
- Revenue FY2025
- $53M
- Funders on record
- 108
- Grants received
- $19M
- Net assets
- $40M
What Father Bill's & Mainspring Inc does
Mission
Father bill's & mainspring, inc. Is dedicated to ending, not simply managing homelessness. The agency is the largest provider of emergency shelter, housing and services for people experiencing homelessness on the south shore and in southern massachusetts
As stated on its FY2025 Form 990.
Programs
The triage/shelter programs provide emergency shelter relief, daily nutritional meals, case management and extensive social services to homeless families, individuals and teens. The short-term housing programs provide short-term rental assistance and stabilization services to individuals and families moving into permanent housing.
$15,978,203 spent42% of program spendingThe permanent supportive housing program provides affordable housing to formerly homeless individuals and families. The agency owns, rents and manages the units in this program.
$19,269,032 spentof which $10,416,435 as grants51% of program spendingThe workforce development program provides individuals and heads of households with skills, training and career services to prepare them to join or rejoin the workforce and achieve self-sufficiency.
$596,149 spent2% of program spendingOther program services: the tenancy preservation and prevention program assists families to maintain their housing and provides support services to prevent homelessness.
$2,264,249 spent6% of program spending
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $38,107,633.
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.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2024 to 2025, from $61M to $81M (+33%).
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 82% · 2018 82% · 2019 83% · 2020 79% · 2021 77% · 2022 72% · 2023 76% · 2024 84% · 2025 71%. Grants only. Government contracts and fees sit inside program revenue.
93% of FATHER BILL'S & MAINSPRING INC’s revenue is contributions — more reliant on donations than three-quarters of its peers (13% for the typical peer).
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
John Yazwinski
CEO & president
Board chair
Al Becker
Chair
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 19 funders to 56 funders, grant income rose $524k → $2.7M.
20 of 108 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 26% 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 FATHER BILL'S & MAINSPRING INC’s funders (the co-funder graph). Top 30 of 108 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
FATHER BILL'S & MAINSPRING INC has a broad base — no single funder exceeds 17% 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
43% 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 FATHER BILL'S & MAINSPRING INC.
Largest funder’s share by year: 2017 27% · 2018 18% · 2019 37% · 2020 17% · 2021 31% · 2022 34% · 2023 19% — 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
55% of FATHER BILL'S & MAINSPRING 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
92% of FATHER BILL'S & MAINSPRING 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. $4.8M arriving through sponsors registered in 13 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.
Against its field
FATHER BILL'S & MAINSPRING INC runs a healthier operating margin than half of the 488 housing & shelter nonprofits its size.
this organization peer median middle 50% of peers· 488 housing & shelter nonprofits $10M–$100M, FY2025
Government funding FATHER BILL'S & MAINSPRING INC receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $62.6M on record — $18.1M federal, $44.6M state.
- Department of Housing and Urban Development$11.0M
- Department of Veterans Affairs$7.1M
- (PP) STATE AID/POL SUB$26.1M
- (MM) PURCHASED CLIENT/PROGRAM SVCS$18.4M
- (NN) INFRASTRUCTURE:$5k
- (JJ) OPERATIONAL SERVICES$55
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like FATHER BILL'S & MAINSPRING 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
86% of spending goes to programs.
Governance
Public support
100%
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 8 related entities
- Work Express Housing Inc · exempt
- Fort Hill Housing Inc · exempt
- Montello Welcome Home Inc · exempt
- Montello Welcome Home Again Inc · exempt
- Roadway Apartments LLC · partnership
Screen this organization
A dated, signed PDF of the compliance screen for FATHER BILL'S & MAINSPRING 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 FATHER BILL'S & MAINSPRING INC?
- FATHER BILL'S & MAINSPRING INC (Massachusetts) receives grants from 108 organizations whose IRS filings report $18,563,104 to it, the largest being YAWKEY FOUNDATION II ($3,150,000). 78 of them have funded it in more than one year.
- How many funders does FATHER BILL'S & MAINSPRING INC have?
- IRS filings report 108 organizations giving $18,563,104 in grants to FATHER BILL'S & MAINSPRING INC, 78 of which have funded it in more than one year.
- Who is the largest funder of FATHER BILL'S & MAINSPRING INC?
- YAWKEY FOUNDATION II is the largest funder on record, with $3,150,000 in grants. The full list of funders is on this page.
- How can an organization like FATHER BILL'S & MAINSPRING 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 Father Bill's & Mainspring →
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 108 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 22, 2026. What this page cannot tell you · view filing