California · Nonprofit
INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12
INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12 (California) receives grants from 6 organizations whose IRS filings report $171,566 to it, the largest being INTERNATIONAL UNION OF OPERATING ENGINEERS' LOCAL 324 ($100,000). 0 of them have funded it in more than one year.
- Revenue FY2024
- $49M
- Funders on record
- 6
- Grants received
- $172k
- Net assets
- $221M
What International Union of Operating Engineers Local 12 does
Mission
To promote the welfare of members and represent them in all matters relating to labor-management relations.
As stated on its FY2024 Form 990.
Program
To promote the welfare of members and represent them in all matters relating to labor-management relations.
The program described on its FY2023 Form 990.
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 $198M to $225M (+13%).
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.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 8 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
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12’s funders (the co-funder graph). Top 5 of 6 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
INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12 leans on a few funders — its largest provides 58% of grant income and the top three 90%; 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 INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12.
“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
INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12 draws 79% of its grant income from funders outside California, across 4 states in all.
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.
Organizations like INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12
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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Governance
Footprint & structure
Part of a family of 3 related entities
- Oper Eng Lo 12 Vol Legis (Non-Exempt) · exempt
- Oper Eng Lo 12 Pol Fund (Non-Exempt) · exempt
- Intl Union of Operating Engineers · exempt
Screen this organization
A dated, signed PDF of the compliance screen for INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12: 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 INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12?
- INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12 (California) receives grants from 6 organizations whose IRS filings report $171,566 to it, the largest being INTERNATIONAL UNION OF OPERATING ENGINEERS' LOCAL 324 ($100,000). 0 of them have funded it in more than one year.
- How many funders does INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12 have?
- IRS filings report 6 organizations giving $171,566 in grants to INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12.
- Who is the largest funder of INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12?
- INTERNATIONAL UNION OF OPERATING ENGINEERS' LOCAL 324 is the largest funder on record, with $100,000 in grants. The full list of funders is on this page.
- How can an organization like INTERNATIONAL UNION OF OPERATING ENGINEERS LOCAL 12 find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. 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 International Union of Operating Engineers Local 12 →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 6 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