International Union of Operating

WASHINGTON, DC EIN: 52-1889259

TO ADMINISTER AND DEFRAY THE COSTS OF TRAINING FOR OPERATING ENGINEERS EMPLOYED IN VARIOUS INDUSTRIES.

Financial Overview

From 2024 IRS Form 990-PF · View filing

Total Assets

$56.8M

+33.8% YoY

Annual Giving

$725K

-18.5% YoY

Grant Count

2

+0.0% YoY

Avg Grant Size

$363K

-18.5% YoY

About International Union of Operating

Based on IRS filings

International Union of Operating is a nonprofit organization focused on Employment, based in WASHINGTON, DC. IRS filing data is available from 2020 through 2024. As of 2024, the organization holds $56.8M in total assets. In 2024, it awarded 2 grants totaling $725K. Net investment income was $1.1M.

Focus Areas

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

2states

Cities

RiversideWashington

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Qualifying Distributions
Net Investment Income
$0$10M$19M$29M$39M20202021202220232024
Metric202420232022
Total Assets$56,772,463$42,432,935$33,130,172
Revenue$35,246,931$27,541,331$22,184,912
Expenses$23,500,122$19,807,422$16,952,167
Qualifying Distributions
Net Investment Income$1,058,404$923,236$421,850
Distributable Amount

Giving Over Time

Total grant dollars and number of grants per year

$0$225K$450K$675K$900K2 grants20202 grants20212 grants20222 grants20232 grants2024

Grant Insights

How this funder distributes its grants

Top Recipients

Top 2 recipients in 2024

OPERATING ENGINEERS CERT…$600KSTATIONARY ENGINEERS APP…$125K

Grant Size Distribution

10 grants across all recorded years

<$50K1$50–100K4$100–250K$250–500K5$500K–1M$1–5M$5M+

Giving History

Grant recipients and amounts by year

Among its reported 2024 grants, the largest include Operating Engineers Certification Program Inc ($600,000), Stationary Engineers App Training Trust ($125,000).

RecipientPurposeAmount
OPERATING ENGINEERS CERTIFICATION PROGRAM INC RIVERSIDE, CAGENERAL SPONSORSHIP$600,000
STATIONARY ENGINEERS APP TRAINING TRUST WASHINGTON, DCGENERAL SPONSORSHIP$125,000

Leadership & Key People

Officers and directors from IRS filings

Compensation Overview

From 2024 IRS filing

CHRISTOPHER TREMLEXECUTIVE DIRECTOR$189KSHARON MUMPOWERJOB CORP DIRECTOR$160KCHRISTIAN HILDEBRANDDEPUTY DIRECTOR$140KZACHARY DIXONJOB CORP REGIONAL COORDINATOR$133KJOHN SAUNDERSAPPRENTICE PLACEMENT COORDIN…$133KJASON KEITHJOB CORP REGIONAL COORDINATOR$131KJOSEPH DIXONJOB CORP REGIONAL COORDINATOR$129K

From 2024 filing

NameTitleHoursCompensation
JAMES CALLAHANTRUSTEE1
THOMAS DAPPTRUSTEE1
MICHAEL GALLAGHERTRUSTEE1
DOUGLAS STOCKWELLTRUSTEE1
ROBERT HOOVERTRUSTEE1
EDWIN CHRISTIANTRUSTEE1
DAVID NELSONTRUSTEE1
JOHN REYTRUSTEE1
JAMES ANDERSONTRUSTEE1
CHRISTOPHER TREMLEXECUTIVE DIRECTOR40$188,597
SHARON MUMPOWERJOB CORP DIRECTOR40$160,218
ZACHARY DIXONJOB CORP REGIONAL COORDINATOR40$132,794
JOHN SAUNDERSAPPRENTICE PLACEMENT COORDINATOR40$132,794
CHRISTIAN HILDEBRANDDEPUTY DIRECTOR40$140,063
JASON KEITHJOB CORP REGIONAL COORDINATOR40$130,912
JOSEPH DIXONJOB CORP REGIONAL COORDINATOR40$128,552

Subject Areas

Focus areas based on grantmaking activity

Frequently Asked Questions

What is International Union of Operating?

International Union of Operating is a nonprofit organization focused on Employment, based in WASHINGTON, DC. It holds $56.8M in total assets as of 2024.

How large is International Union of Operating?

As of 2024, International Union of Operating holds $56.8M in total assets with $35.2M in annual revenue. It awarded 2 grants totaling $725K in 2024.

Where does International Union of Operating operate?

International Union of Operating has awarded grants in California, District of Columbia.

What size grants does International Union of Operating award?

In 2024, International Union of Operating awarded 2 grants totaling $725K — an average of about $363K per grant, based on its IRS Form 990 filings.

What is International Union of Operating's EIN?

International Union of Operating's EIN (Employer Identification Number) is 52-1889259. IRS Form 990 filing data is available on this page for 2020–2024.

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Data last updated April 2026. Sourced from IRS Form 990-PF filings.

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