Nonprofit · EIN 86-1797323
INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100
Also known as LOCAL UNION 4100 CPW UAW
Tax-exempt · NEW YORK, NY 10001
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $1,991,157 | $1,782,204 | $208,953 | $942,473 | $42,290 | $900,183 |
| December 31, 2024 | 990 | $1,599,055 | $1,109,399 | $489,656 | $733,435 | $187,555 | $545,880 |
| December 31, 2023 | 990 | $766,598 | $700,986 | $65,612 | $248,767 | $82,208 | $166,559 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $1,978,056
- Investment income
- $0
- Other revenue
- $13,101
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $96,338
- Other salaries and wages
- $303,460
- Salaries, compensation and benefits (total)
- $503,721
- Professional fundraising fees
- $0
- Accounting fees
- $5,070
- Travel
- $10,753
Balance sheet and other
- Total assets, start of year
- $733,435
- Total assets, end of year
- $942,473
- Total liabilities, end of year
- $42,290
- Net assets, end of year
- $900,183
- Land, buildings and equipment
- $657
- Gross receipts
- $1,991,157
- Employees
- 10
- Volunteers
- 0
- Year formed
- 2020
- State of legal domicile
- NY
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Andrew Little | President Officer | 0 | $81,088 |
| Natalia Ferressini | Recording Secretary Officer | 0.3 | $15,250 |
| Bremy Alburquerque | Member-at-Large (MS) Officer | 0 | $0 |
| Sara Alibrandi | Guide Officer | 0 | $0 |
| Thiago Arzua | Financial Secretary Officer | 0 | $0 |
| Conor Bacon | Trustee Trustee or director, Officer | 0 | $0 |
| Paola Bianchimano | Vice-President Officer | 0 | $0 |
| Thomas Donoghue | Sergeant-at-Arms Officer | 0 | $0 |
| Elsy El Khoury | Member-at-Large (CU) Officer | 0 | $0 |
| Elza Rechtman | Trustee Trustee or director, Officer | 0 | $0 |
| Ankit Roy | Sergeant-at-arms Officer | 0 | $0 |
| Clauvis Yengo | Trustee Trustee or director, Officer | 0 | $0 |
990 for the year ended December 31, 2024: 16 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Cora Bergantinos-Crespo | President Officer | 1.1 | $51,364 |
| Andrea Joseph | President Officer | 0 | $30,840 |
| Andrew Little | President Officer | 0 | $3,379 |
| Natalia Ferressini | Recording Secretary Officer | 0.5 | $2,500 |
| Bremy Alburquerque | Member-at-Large (MS) Officer | 0 | $0 |
| Giuseppe Federico Amodeo | Recording Secretary Officer | 0 | $0 |
| Thiago Arzua | Financial Secretary Officer | 0 | $0 |
| Conor Bacon | Trustee Trustee or director, Officer | 0 | $0 |
| Paola Bianchimano | Vice-President Officer | 0 | $0 |
| Thomas Donoghue | Sergeant-at-Arms Officer | 0 | $0 |
| Elsy El Khoury | Member-at-Large (CU) Officer | 0 | $0 |
| Panagiotis Oikonomou | Sergeant at Arms Officer | 0 | $0 |
| Elza Rechtman | Trustee Trustee or director, Officer | 0 | $0 |
| Clauvis Yengo | Trustee Trustee or director, Officer | 0 | $0 |
| Sumaira Zamurrad | Trustee Trustee or director, Officer | 0 | $0 |
| Sherida de Leeuw | Guide Officer | 0 | $0 |
990 for the year ended December 31, 2023: 12 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Cora Bergantinos-Crespo | President Officer | 0 | $65,427 |
| Giuseppe Federico Amodeo | Recording Secretary Officer | 0 | $0 |
| Thiago Arzua | Financial Secretary Officer | 0 | $0 |
| Conor Bacon | Trustee Trustee or director, Officer | 0 | $0 |
| Pierre-Jacques Brun | Financial Secretary Officer | 0 | $0 |
| Enrica Calzoni | Guide Officer | 0 | $0 |
| Alvaro Cuesta-Dominguez | Seargant at Arms Officer | 0 | $0 |
| Thomas Donoghue | Vice President Officer | 0 | $0 |
| Elsy El Khoury | Trustee Trustee or director, Officer | 0 | $0 |
| Panagiotis Oikonomou | Sergeant at Arms Officer | 0 | $0 |
| Sumaira Zamurrad | Trustee Trustee or director, Officer | 0 | $0 |
| Sherida de Leeuw | Guide Officer | 0 | $0 |
Address and contacts
- Address (IRS master file)
- 350 W 31ST STREET 7TH FLOOR, NEW YORK, NY 10001-2726
- In care of
- % ATTN FINANCIAL SECRETARY CPW-UAW
- Principal officer (990 for 2025)
- Andrew Little
- Signed the 990
- Thiago Arzua, Financial Secretary
- Phone
- (347) 453-8937
- Website
- www.columbiapostdocunion.org
- Return prepared by
- RCS Union Software
Mission
Promote social and economic justice through collective bargaining, meetings, education, communication, organizing new bargaining units, community action, administration of the organization, maintenance of its property and assets, delivery of benefits to represent members, fraternal and social activities and related activities which further the common interest of the membership.
Program accomplishments
- Collective bargaining and representation for 1,724 members
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 86-1797323
- Tax-exempt status
- 501(c)(5): Labor, agricultural or horticultural organization
- Donations deductible
- No
- Exempt since
- 1941
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $942,473
- Income (IRS master file)
- $1,991,157
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $1,991,157 | $1,782,204 | $942,473 | IRS |
| 990 | December 2024 | $1,599,055 | $1,109,399 | $733,435 | IRS |
| 990 | December 2023 | $766,598 | $700,986 | $248,767 | XML |
| 990 | December 2022 | – | – | – | IRS |
| 990 | December 2021 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 86-1797323).
Questions about INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100
- What is the EIN of INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100?
- The employer identification number (EIN) of INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100 is 86-1797323.
- Is INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100 tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(5) since 1941.
- Are donations to INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100 tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100 file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100 due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100 last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100?
- The 990 for the year ended December 31, 2025 names Andrew Little.
- Who are the officers and directors of INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100?
- The 990 for the year ended December 31, 2025 lists 12 people; 2 received compensation from the organization, the highest $81,088 (Andrew Little, President).
- How much revenue does INTERNATIONAL UNION UNITED AUTO UAW LOCAL 4100 have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $1,991,157, expenses of $1,782,204 and total assets of $942,473 at year end.
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