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Massachusetts · Nonprofit

JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON

JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON (Massachusetts) receives grants from 58 organizations whose IRS filings report $12,612,204 to it, the largest being Combined Jewish Philanthropies of Greater Boston Inc ($5,446,951). 36 of them have funded it in more than one year, and 64% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.

Revenue FY2025
$2.1M
Funders on record
58
Grants received
$13M
Net assets
$2.3M
36/58 repeat funderspeak grant-dependency 96%
01What it does

What Jewish Big Brother & Big Sister Association of Greater Boston does

Mission

Jbbbs builds and sustains life-changing friendships and mentoring relationships that inspire personal growth, promote emotional well-being, and create a more connected and engaged community guided by jewish values.

As stated on its FY2025 Form 990.

Programs

  1. Children's program the mentorship program pairs children (ages 7-18) with caring adult mentors who provide guidance, support, and friendship. Each match is professionally supported by clinical match specialists to ensure successful and lasting relationships.

    $1,090,300 spentof which $68,916 as grants
    63% of program spending
  2. Friend2friend program the friendship program matches adults with mild to moderate disabilities with volunteer friends for social and recreational activities, fostering independence and inclusion. These relationships help participants build confidence, expand their social networks, and enhance their quality of life.

    $653,187 spent
    37% of program spending

The 2 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $1,743,487.

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 ($1.8M) Expenses 100 ($2.4M) Net assets 100 ($1.1M)2018 Revenue 97 ($1.8M) Expenses 72 ($1.7M) Net assets 109 ($1.2M)2019 Revenue 92 ($1.7M) Expenses 76 ($1.8M) Net assets 97 ($1.0M)2020 Revenue 138 ($2.5M) Expenses 83 ($2.0M) Net assets 150 ($1.6M)2021 Revenue 115 ($2.1M) Expenses 79 ($1.9M) Net assets 178 ($1.9M)2022 Revenue 127 ($2.3M) Expenses 87 ($2.1M) Net assets 193 ($2.1M)2023 Revenue 123 ($2.2M) Expenses 93 ($2.2M) Net assets 206 ($2.2M)2024 Revenue 120 ($2.2M) Expenses 95 ($2.3M) Net assets 215 ($2.3M)2025 Revenue 117 ($2.1M) Expenses 95 ($2.2M) Net assets 216 ($2.3M)
'17'18'19'20'21'22'23'24'25
Revenue (117)Expenses (95)Net assets (216)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 2019 to 2020, from $1.1M to $2.0M (+82%).

$1.4M
$1.3M
$1.1M
$2.0M
$2.4M
$2.3M
$2.7M
$2.7M
$2.6M
'17'18'19'20'21'22'23'24'25
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
2025
ContributionsProgram revenueInvestmentOther

Government-grant reliance: 2021 22% · 2022 10%. Grants only. Government contracts and fees sit inside program revenue.

94% of JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON’s revenue is contributions — more donation-reliant than the typical peer (82% for the typical peer).

This organization
Typical peer · 3,052 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 4 of the last 9 reported years ran a deficit.

−$541k
’17
$76k
’18
−$123k
’19
$558k
’20
$235k
’21
$266k
’22
$32k
’23
−$61k
’24
−$116k
’25
5.3
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

Lauren Korn

President & CEO

As listed on its FY2025 Form 990.

The chief executive listed changed between the FY2024 and FY2025 filings.

'17'18'19'20'21'22'23'24'25
Listed212624192323242626
Joined·+8+3+1+5+6+6+9+3
No longer listed·35616573
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 13 funders to 34 funders, grant income rose $1.2M → $1.6M.

14 of 58 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 64% 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: $2.5M from one payer (the payer shares this organization's board, largest Jewish Big Brother & Big Sister Assoc of Greater Boston Endowment). These are real filings, and they are not money JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON raised.

From the IRS filings of JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON’s funders (the co-funder graph). Top 30 of 58 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

JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON leans on a few funders — its largest provides 43% of grant income and the top three 79%; half comes from just 2 funders.

the vertical line marks half of all grant income — 2 funders 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 JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON.

43%
largest funder
79%
top three
~4
effective funders

Largest funder’s share by year: 2017 36% · 2018 54% · 2019 46% · 2020 46% · 2021 44% · 2022 50% · 2023 35% — 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

50% of JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON's funders are still giving 3 years after their first grant; 62% give in more than one year at all.

first grant+1y+2y+3y+4y+5y+6y

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

64% of JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON'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 $4.5M that is directly attributable, 90% of it comes from Massachusetts funders.

NH
IL
NY
MA
PA
CA
MO
FL

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

’17
’18
’19
’20
’21
’22
’23
Massachusetts out of state home

Funder states come from each funder’s own filing. $8.1M arriving through sponsors registered in 9 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

JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON is better cushioned than half of the 1,504 philanthropy nonprofits its size.

Operating margin−5% · bottom quartile
Months of reserve5.3mo · above the median
Revenue growth (annualized)2% · below the median

this organization peer median middle 50% of peers· 1,504 philanthropy nonprofits $1M–$10M, FY2025

Organizations like JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON

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

05Profile & governance

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

Where the money goes

78% of spending goes to programs.

Program 78%Management 4%Fundraising 19%

Governance

24
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

MA

Part of a family of 1 related entity

  • Jewish Big Brothers & Big Sisters Assoc of Greater Boston Endowment Inc · exempt

Screen this organization

A dated, signed PDF of the compliance screen for JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON: 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.

A paid feature, included from the $75 plan up. Sign in to download.

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 JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON?
JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON (Massachusetts) receives grants from 58 organizations whose IRS filings report $12,612,204 to it, the largest being Combined Jewish Philanthropies of Greater Boston Inc ($5,446,951). 36 of them have funded it in more than one year, and 64% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
How many funders does JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON have?
IRS filings report 58 organizations giving $12,612,204 in grants to JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON, 36 of which have funded it in more than one year.
Who is the largest funder of JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON?
Combined Jewish Philanthropies of Greater Boston Inc is the largest funder on record, with $5,446,951 in grants. The full list of funders is on this page.
How can an organization like JEWISH BIG BROTHER & BIG SISTER ASSOCIATION OF GREATER BOSTON 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.

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 58 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