International Union of Operating Engineers Local No 501
To provide representation to members in matters related to employment in accordance with the collective bargaining agreement and fair employment standards.
Key facts about International Union of Operating Engineers Local No 501
In short: International Union of Operating Engineers Local No 501 gave $13K across 2 grants in 2024 (avg $7K), mostly in California. Source: 2024 IRS Form 990.
- EIN
- 95-1751526
- Latest 990 filing
- Form 990, 2024
- Annual giving (2024)
- $13,300
- Grants made (2024)
- 2
- Average grant
- $6,650
- Median grant
- $6,650
- Total assets
- $3,725,701
- Primary geography
- California (100% of itemized 2024 grant dollars)
Data from IRS Form 990, 2024; updated September 2026.
Financial Overview
From 2024 IRS Form 990 · View filing
Total Assets
$3.7M
-24.5% YoY
Annual Giving
$13K
-44.5% YoY
Grant Count
2
-33.3% YoY
Avg Grant Size
$7K
-16.7% YoY
How International Union of Operating Engineers Local No 501 gives
- Giving fell 61% from 2021 to 2024. Method
From the foundation's IRS Form 990 filings. Methodology.
About International Union of Operating Engineers Local No 501
Based on IRS filings
International Union of Operating Engineers Local No 501 is a public charity, based in Los Angeles, CA. IRS filing data is available from 2019 through 2024. As of 2024, the organization holds $3.7M in total assets. In 2024, it awarded 2 grants totaling $13K. Net investment income was $98K.
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Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2024 grant dollars across all 2 itemized grants.
States
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2024, annual grant giving ranged from $6K (2022) to $49K (2020). In 2024 it made 2 grants totaling $13K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2024
The largest 2024 recipient was Iuoe Local 12 Charity Golf Committee ($7K). Together the top 2 received $13K.
Grant Size Distribution
14 grants across all recorded years
The most common grant size was under $50K: 14 grants of 14 (100%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Iuoe Local 12 Charity Golf Committee Pasadena, CA | Golf Charity Event | $7,000 |
| Orange County Labor Federation Orange, CA | Sponsor/Donation | $6,300 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2024 | 2023 | 2022 |
|---|---|---|---|
| Total Assets | $3,725,701 | $4,937,243 | $987,346 |
| Revenue | $11,272,071 | $10,423,284 | $10,304,649 |
| Expenses | $12,197,376 | $11,328,436 | $10,252,877 |
| Net Investment Income | $98,232 | $-16,963 | $166 |
Data update history
When this profile's IRS filing data changed on Grantable
- Added Form 990 for fiscal year 2019 (received by the IRS July 31, 2020)
- Updated Form 990 for fiscal year 2020 (received by the IRS May 5, 2021)
- Updated Form 990 for fiscal year 2021 (received by the IRS November 15, 2022)
- Updated Form 990 for fiscal year 2022 (received by the IRS November 15, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS October 31, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS November 6, 2025)
- IRS filings on file for fiscal years 2020–2024
Leadership & Key People
Officers and directors from IRS filings
International Union of Operating Engineers Local No 501 is led by Thomas O'Mahar, President on every filing since 2019; all 25 officers listed in 2024 are compensated.
Officers on the 2024 filing
Thomas O'Mahar
President
On filings since 2019
40 hrs/week
$127K (2019) → $161K (2024)
Michael Narez
Trustee
Eb Member at Large → Trustee, 2024
On filings since 2019
50 hrs/week
$131K (2019) → $154K (2024)
Paul Warnstedt
Trustee
On filings since 2019
3 hrs/week
$2K (2019) → $4K (2024)
Steve Tveden
Trustee
On filings since 2019
3 hrs/week
$2K (2019) → $4K (2024)
Arturo Allen
Guard
On filings since 2019
2 hrs/week
$2K (2019) → $4K (2024)
Bryan Cortez
Treasurer
On filings since 2019
40 hrs/week
$2K (2019) → $127K (2024)
Deric Barnes
Vice President
Eb Member at Large → Vice President, 2024
On filings since 2019
55 hrs/week
$123K (2019) → $153K (2024)
Edward J Curly
Bus Manager & Recording Secretary
Business Manager & Recording Corporate → Bus Manager & Recording Secretary, 2024
On filings since 2019
75 hrs/week
$174K (2019) → $189K (2024)
Jose Barba
Eb Member
Eb Member at Large & Conductor → Eb Member at Large & Conduct, 2020
Eb Member at Large & Conduct → Eb Member, 2024
On filings since 2019
60 hrs/week
$108K (2019) → $129K (2024)
Jose Soto
Financial Secretary
Eb Member at Large → Financial Secretary, 2024
On filings since 2019
50 hrs/week
$115K (2019) → $155K (2024)
Mark Fragoso
Eb Member
Eb Member at Large → Eb Member, 2024
On filings since 2019
40 hrs/week
$113K (2019) → $129K (2024)
Martin Cicalese
Auditor
On filings since 2019
3 hrs/week
$2K (2019) → $4K (2024)
Rickey Cain
Auditor
On filings since 2019
3 hrs/week
$4K (2019) → $8K (2024)
Ryan Trost
Conductor
On filings since 2019
2 hrs/week
$2K (2019) → $4K (2024)
Todd Ullman
Vice President
Vice President → Vice President & Dist. Representative, 2022
Vice President & Dist. Representative → Vice President, 2024
On filings since 2019
2 hrs/week
$2K (2019) → $1K (2024)
Gregory Head Duenez
Auditor
On filings since 2020
2 hrs/week
$2K (2020) → $4K (2024)
Richard Bartow
Business Representative
On filings since 2020
60 hrs/week
$115K (2020) → $125K (2024)
Thomas Ewart
Eb Member
Business Representative → Eb Member, 2024
On filings since 2020
50 hrs/week
$110K (2020) → $130K (2024)
Denise Vukojevich
Eb Member
Trustee → Eb Member, 2024
On filings since 2022
5 hrs/week
$3K (2022) → $10K (2024)
Diego Back
Eb Member
Business Representative → Eb Member, 2024
On filings since 2022
55 hrs/week
$107K (2022) → $133K (2024)
Richard Lile
Eb Member
Eb Member at Large → Eb Member, 2024
On filings since 2022
72 hrs/week
$106K (2022) → $129K (2024)
Brim Blair
Business Representative
New on the 2024 filing
50 hrs/week
$125K (2024)
Grant Gareth
Organizer
New on the 2024 filing
40 hrs/week
$139K (2024)
Motl Scot
Organizer
New on the 2024 filing
70 hrs/week
$129K (2024)
Ramirez Benjamin
Business Representative
New on the 2024 filing
50 hrs/week
$124K (2024)
Former officers (19)
- Former: Carolyne Akili (2019–2023) — Secretary
- Former: Michael Silvia (2022–2023) — Business Representative
- Former: Gareth Grant (2023) — Organizer
- Former: Sean Curly (2023) — Organizer
- Former: Blair Brim (2019–2022) — Business Representative
- Former: Paul Nunez (2019–2022) — Financial Secretary
- Former: Stephanie Ramoser (2019–2022) — Eb Member at Large
- Former: James Fagen (2022) — Business Representative
- Former: Boaz Shalmon (2019–2021) — Auditor - Past
- Former: Patrick Murphy (2019–2021) — Business Representative
- Former: Michael Ulloa (2020–2021) — Business Representative
- Former: Sandra Flores (2020–2021) — Business Representative
- Former: Gavin Koon (2021) — Business Representative
- Former: Thomas Dasilva - Past (2021) — Trustee & Guard
- Former: Thomas Dasilva (2019–2020) — Trustee & Guard
- Former: Scot Motl (2020) — Business Representative
- Former: Adelaide Barler (2019) — Comptroller
- Former: Sandra Acosta (2019) — Business Representative
- Former: Tommy Matthews (2019) — Auditor - Past
Data from IRS Form 990 filings, 2019–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Compensation Overview
From 2024 IRS filing
The highest reported compensation on the 2024 filing was $189K, to Edward Curly (Bus Manager/Recording Secy). 25 officers or directors reported compensation on that filing.
Frequently asked questions about International Union of Operating Engineers Local No 501
How much does International Union of Operating Engineers Local No 501 give each year?
International Union of Operating Engineers Local No 501 gave $13K across 2 grants in 2024, according to its 2024 IRS Form 990. In 2023 it gave $24K across 3 grants.
How large is International Union of Operating Engineers Local No 501?
International Union of Operating Engineers Local No 501 reported $3.7M in total assets on its 2024 IRS Form 990. Its revenue that year was $11.3M.
Where does International Union of Operating Engineers Local No 501 operate?
International Union of Operating Engineers Local No 501 has awarded grants in California, New York.
What is International Union of Operating Engineers Local No 501's EIN?
International Union of Operating Engineers Local No 501's EIN (Employer Identification Number) is 95-1751526. IRS Form 990 filing data is available on this page for 2019–2024.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Here's the math on researching International Union of Operating Engineers Local No 501 by hand.
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