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Washington · Nonprofit

WORKER SOLIDARITY AND DEFENSE FOUNDATION

WORKER SOLIDARITY AND DEFENSE FOUNDATION (Washington) receives grants from 12 organizations whose IRS filings report $370,500 to it, the largest being INTERNATIONAL BROTHERHOOD OF TEAMSTERS ($250,000). 0 of them have funded it in more than one year.

Revenue FY2024
$595k
Funders on record
12
Grants received
$371k
Net assets
$522k
0/12 repeat funders
01What it does

What Worker Solidarity and Defense Foundation does

Mission

We raise and distribute charitable funds to workers who've lost income after being punished by their employers for standing up for their rights on the job.

As stated on its FY2024 Form 990.

Programs

  1. We raise and distribute charitable funds to workers who've lost income after being punished by their employers for standing up for their rights on the job.

    $0 spent
  2. Other program services, not described on the e-filed return.

    $0 spent

The 2 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $0.

02The organization over time

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

Margaret White

Executive director

As listed on its FY2024 Form 990.

03Who funds it

Who funds it, year by year

Grant support over time, funder by funder — shade shows the grant size each year.

From the IRS filings of WORKER SOLIDARITY AND DEFENSE FOUNDATION’s funders (the co-funder graph). Top 10 of 12 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

WORKER SOLIDARITY AND DEFENSE FOUNDATION leans on a few funders — its largest provides 67% of grant income and the top three 77%; half comes from just 1 funder.

the vertical line marks half of all grant income — 1 funder to its left

100% 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 WORKER SOLIDARITY AND DEFENSE FOUNDATION.

67%
largest funder
77%
top three
~2
effective funders

“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

WORKER SOLIDARITY AND DEFENSE FOUNDATION draws 97% of its grant income from funders outside Washington, across 8 states in all.

WA
MA
OH
PA
CA
AZ
NC
DC

Funder states come from each funder’s own filing. 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

WORKER SOLIDARITY AND DEFENSE FOUNDATION runs a healthier operating margin than three-quarters of the 2,276 employment nonprofits its size.

Operating margin88% · top quartile
Months of reserve87.3mo · top quartile

this organization peer median middle 50% of peers· 2,276 employment nonprofits $100k–$1M, FY2024

Organizations like WORKER SOLIDARITY AND DEFENSE FOUNDATION

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 Washington

Nationally

05Profile & governance

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

Where the money goes

0% of spending goes to programs.

Program 0%Management 100%Fundraising 0%

Governance

2
board members
100%
independent
–Conflict-of-interest policy–Whistleblower policy–Document retention✓Board reviewed the 990–Audited financials

Footprint & structure

Files a return copy in 1 state

WA

Screen this organization

A dated, signed PDF of the compliance screen for WORKER SOLIDARITY AND DEFENSE FOUNDATION: 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.

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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 WORKER SOLIDARITY AND DEFENSE FOUNDATION?
WORKER SOLIDARITY AND DEFENSE FOUNDATION (Washington) receives grants from 12 organizations whose IRS filings report $370,500 to it, the largest being INTERNATIONAL BROTHERHOOD OF TEAMSTERS ($250,000). 0 of them have funded it in more than one year.
How many funders does WORKER SOLIDARITY AND DEFENSE FOUNDATION have?
IRS filings report 12 organizations giving $370,500 in grants to WORKER SOLIDARITY AND DEFENSE FOUNDATION.
Who is the largest funder of WORKER SOLIDARITY AND DEFENSE FOUNDATION?
INTERNATIONAL BROTHERHOOD OF TEAMSTERS is the largest funder on record, with $250,000 in grants. The full list of funders is on this page.
How can an organization like WORKER SOLIDARITY AND DEFENSE FOUNDATION find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Washington. 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 Worker Solidarity and Defense →

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2024–2024), and the filings of 12 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