Nonprofit · EIN 52-1303565
NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH
Tax-exempt · SPRINGFIELD, VA 22151
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $799,471 | $607,921 | $191,550 | $1,854,244 | $19,301 | $1,834,943 |
| December 31, 2024 | 990 | $506,319 | $655,576 | -$149,257 | $1,633,226 | $19,915 | $1,613,311 |
| December 31, 2023 | 990 | $775,092 | $619,188 | $155,904 | $1,796,968 | $26,471 | $1,770,497 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $751,850
- Program service revenue
- $0
- Investment income
- $47,621
- Net gain from sales of assets
- $2,849
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $73,150
- Compensation of officers, directors and key employees
- $105,467
- Other salaries and wages
- $234,515
- Salaries, compensation and benefits (total)
- $421,353
- Professional fundraising fees
- $0
- Accounting fees
- $9,800
- Occupancy
- $4,937
- Travel
- $8,296
- Depreciation
- $1,680
- Program services (functional)
- $430,323
- Management and general (functional)
- $105,090
- Fundraising (functional)
- $72,508
Balance sheet and other
- Total assets, start of year
- $1,633,226
- Total assets, end of year
- $1,854,244
- Total liabilities, end of year
- $19,301
- Net assets, end of year
- $1,834,943
- Land, buildings and equipment
- $1,155
- Publicly traded securities
- $311,459
- Net assets without donor restrictions
- $1,460,943
- Net assets with donor restrictions
- $374,000
- Gross receipts
- $820,333
- Employees
- 17
- Volunteers
- 5
- Year formed
- 1983
- State of legal domicile
- VA
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 | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| M LEEN | ASSOCIATE Highest-paid employee | 6 | $46,116 | $261,326 | $77,063 |
| MARK A MIX | EXEC. VICE PRESIDENT/TREASURER Officer | 7.5 | $49,411 | $225,096 | $73,395 |
| S GREER | SENIOR RESEARCH ASSOCIATE Highest-paid employee | 24 | $84,235 | $56,157 | $54,678 |
| A GRAY | DIRECTOR OF FACILITIES MANAGEMENT Highest-paid employee | 2.5 | $9,162 | $112,992 | $35,257 |
| S GERETY | ASSOCIATE Highest-paid employee | 6 | $19,869 | $112,593 | $20,598 |
| E DON LOOS | DIRECTOR/SECRETARY Trustee or director, Officer | 10 | $37,087 | $0 | $6,298 |
| SANDRA CRANDALL | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
| CORNELL W GETHMANN | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
| ERIK J HANSON | DIRECTOR/VICE CHAIRMAN Trustee or director, Officer | 1 | $0 | $0 | $0 |
| TIMOTHY M MCCONVILLE | DIRECTOR/CHAIRMAN/PRESIDENT Trustee or director, Officer | 1 | $0 | $0 | $0 |
| WILLIAM H DUROSS III | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
990 for the year ended December 31, 2024: 12 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| M LEEN | ASSOCIATE Highest-paid employee | 6 | $43,619 | $247,071 | $78,112 |
| MARK A MIX | EXEC. VICE PRESIDENT/TREASURER Officer | 7.5 | $45,688 | $208,057 | $76,052 |
| S GREER | SENIOR RESEARCH ASSOCIATE Highest-paid employee | 24 | $82,119 | $54,669 | $50,690 |
| S GERETY | ASSOCIATE Highest-paid employee | 6 | $18,672 | $106,110 | $27,974 |
| A GRAY | DIRECTOR OF FACILITIES MANAGEMENT Highest-paid employee | 2.5 | $8,794 | $108,512 | $32,618 |
| E DON LOOS | DIRECTOR/SECRETARY Trustee or director, Officer | 10 | $35,796 | $0 | $6,169 |
| SANDRA CRANDALL | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
| CORNELL W GETHMANN | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
| ERIK J HANSON | DIRECTOR/VICE CHAIRMAN Trustee or director, Officer | 1 | $0 | $0 | $0 |
| TIMOTHY M MCCONVILLE | DIRECTOR/CHAIRMAN/PRESIDENT Trustee or director, Officer | 1 | $0 | $0 | $0 |
| VICTOR SENESE | DIRECTOR (UNTIL 9/24) Trustee or director | 1 | $0 | $0 | $0 |
| WILLIAM H DUROSS III | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
990 for the year ended December 31, 2023: 12 people
| Name | Title | Hours / week | Compensation | From related orgs | Other / benefits |
|---|---|---|---|---|---|
| M LEEN | ASSOCIATE Highest-paid employee | 6 | $39,966 | $226,473 | $72,530 |
| MARK A MIX | EXEC. VICE PRESIDENT/TREASURER Officer | 7.5 | $42,045 | $191,536 | $74,132 |
| S GREER | SENIOR RESEARCH ASSOCIATE Highest-paid employee | 24 | $78,088 | $52,059 | $48,451 |
| S GERETY | ASSOCIATE Highest-paid employee | 6 | $17,403 | $98,618 | $33,164 |
| A GRAY | DIRECTOR OF FACILITIES MANAGEMENT Highest-paid employee | 2.5 | $8,462 | $104,366 | $29,978 |
| E DON LOOS | DIRECTOR/SECRETARY Trustee or director, Officer | 10 | $35,970 | $0 | $6,051 |
| SANDRA CRANDALL | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
| CORNELL W GETHMANN | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
| ERIK J HANSON | DIRECTOR/VICE CHAIRMAN Trustee or director, Officer | 1 | $0 | $0 | $0 |
| TIMOTHY M MCCONVILLE | DIRECTOR/CHAIRMAN/PRESIDENT Trustee or director, Officer | 1 | $0 | $0 | $0 |
| VICTOR SENESE | DIRECTOR Trustee or director | 1 | $0 | $0 | $0 |
| WILLIAM H DUROSS III | DIRECTOR Trustee or director | 0.4 | $0 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 5211 PORT ROYAL RD STE 510, SPRINGFIELD, VA 22151-2131
- Principal officer (990 for 2025)
- MARK A MIX, 5211 PORT ROYAL ROAD 510, SPRINGFIELD, VA 22151
- Signed the 990
- MARK A MIX, EXECUTIVE VICE PRESIDENT
- Phone
- (703) 321-9606
- Website
- WWW.NILRR.ORG
- Return prepared by
- UHY INC
Mission
THE INSTITUTE IS A NONPROFIT, TAX-EXEMPT, EDUCATIONAL ORGANIZATION. ITS PRIMARY MISSION IS TO SERVE AS A RESEARCH FACILITY FOR THE GENERAL PUBLIC, SCHOLARS AND STUDENTS, AND TO PROVIDE, FOR THE BENEFIT OF THE GENERAL PUBLIC, EDUCATIONAL RESEARCH, ANALYSIS, STUDIES, AND PUBLICATIONS TO EXPOSE THE INEQUITIES OF COMPULSORY UNIONISM.
Program accomplishments
- THE INSTITUTE MAINTAINS A RESEARCH LIBRARY; RESPONDS TO REQUESTS FOR RESEARCH AND INFORMATION; SPONSORS EDUCATIONAL RESEARCH, WRITINGS, AND SYMPOSIA; PUBLISHES AND DISTRIBUTES EDUCATIONAL MATERIALS; AND AWARDS SCHOLARSHIPS. IN 2025, THE INSTITUTE RESPONDED TO A NUMBER OF REQUESTS FOR INFORMATION FROM ITS LIBRARY; PUBLISHED SEVEN FACT SHEETS, ONE RESEARCH ARTICLE, AND SEVEN OP-EDS; AWARDED TWO SCHOLARSHIPS; AND MADE TEN ESSAY CONTEST WINNER AWARDS.Expenses $430,323 · grants $73,150
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
- 52-1303565
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1983
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Employment (J40E)
- Assets (IRS master file)
- $1,854,244
- Income (IRS master file)
- $820,333
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $799,471 | $607,921 | $1,854,244 | XML |
| 990 | December 2024 | $506,319 | $655,576 | $1,633,226 | XML |
| 990 | December 2023 | $775,092 | $619,188 | $1,796,968 | XML |
| 990 | December 2022 | $810,588 | $592,793 | $1,599,602 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | 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 52-1303565).
Questions about NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH
- What is the EIN of NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH?
- The employer identification number (EIN) of NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH is 52-1303565.
- Is NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1983.
- Are donations to NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH 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 NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH 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 NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH 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 NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH?
- The 990 for the year ended December 31, 2025 names MARK A MIX.
- Who are the officers and directors of NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH?
- The 990 for the year ended December 31, 2025 lists 11 people; 6 received compensation from the organization, the highest $46,116 (M LEEN, ASSOCIATE).
- How much revenue does NATIONAL INSTITUTE FOR LABOR RELATIONS RESEARCH have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $799,471, expenses of $607,921 and total assets of $1,854,244 at year end.
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