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NAICS 813930 · Labor Unions and Similar Labor Organizations

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Labor union in Hudson, MA

Labor union in Hudson, MA; 747 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. International Association of Fire Fighters

    Active501(c)(5) labor, agricultural or horticultural organization

    Hudson, MA

    Ask it
    Proof for International Association of Fire Fighters
    IRS exempt-organization registration
    IRS 046400706
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Hudson, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 046400706 → IRS search

  2. Massachusetts Teachers Association

    Active501(c)(5) labor, agricultural or horticultural organization

    Hudson, MA

    Ask it
    Proof for Massachusetts Teachers Association
    IRS exempt-organization registration
    IRS 043355819
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Hudson, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 043355819 → IRS search

  3. International Association of Fire Fighters

    Active501(c)(5) labor, agricultural or horticultural organization

    Marlborough, MA · 3 mi away

    Ask it
    Proof for International Association of Fire Fighters
    IRS exempt-organization registration
    IRS 237404194
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Marlborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 237404194 → IRS search

  4. Local 509 Staff Union

    Active501(c)(5) labor, agricultural or horticultural organization

    Marlborough, MA · 3 mi away

    Ask it
    Proof for Local 509 Staff Union
    IRS exempt-organization registration
    IRS 862163568
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Marlborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 862163568 → IRS search

  5. Massachusetts Farm Bureau Federation Inc

    Active501(c)(5) labor, agricultural or horticultural organization

    Marlborough, MA · 3 mi away

    Ask it
    Proof for Massachusetts Farm Bureau Federation Inc
    IRS exempt-organization registration
    IRS 042128453
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Marlborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 042128453 → IRS search

  6. Massachusetts Teachers Association

    Active501(c)(5) labor, agricultural or horticultural organization

    Marlborough, MA · 3 mi away

    Ask it
    Proof for Massachusetts Teachers Association
    IRS exempt-organization registration
    IRS 237174581
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Marlborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 237174581 → IRS search

  7. Middlesex County Farm Bureau 617 Great Rd

    Active501(c)(5) labor, agricultural or horticultural organization

    Marlborough, MA · 3 mi away

    Ask it
    Proof for Middlesex County Farm Bureau 617 Great Rd
    IRS exempt-organization registration
    IRS 042009035
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Marlborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 042009035 → IRS search

  8. Service Employees International Union

    Active501(c)(5) labor, agricultural or horticultural organization

    Marlborough, MA · 3 mi away

    Ask it
    Proof for Service Employees International Union
    IRS exempt-organization registration
    IRS 046190454
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Marlborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 046190454 → IRS search

  9. United Steelworkers

    Active501(c)(5) labor, agricultural or horticultural organization

    Marlborough, MA · 3 mi away

    Ask it
    Proof for United Steelworkers
    IRS exempt-organization registration
    IRS 043449465
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Marlborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 043449465 → IRS search

  10. United Steelworkers

    Active501(c)(5) labor, agricultural or horticultural organization

    Marlboro, MA · 3 mi away

    Ask it
    Proof for United Steelworkers
    IRS exempt-organization registration
    IRS 042514509
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Marlboro, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 042514509 → IRS search

  11. American Federation of Musicians of US & Canada

    Active501(c)(5) labor, agricultural or horticultural organization

    Maynard, MA · 6 mi away

    Ask it
    Proof for American Federation of Musicians of US & Canada
    IRS exempt-organization registration
    IRS 042046109
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Maynard, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 042046109 → IRS search

  12. American Federation of State County & Municipal Employees

    Active501(c)(5) labor, agricultural or horticultural organization

    Northborough, MA · 6 mi away

    Ask it
    Proof for American Federation of State County & Municipal Employees
    IRS exempt-organization registration
    IRS 237159866
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Northborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 237159866 → IRS search

  13. Harvard Educators Association

    Active501(c)(5) labor, agricultural or horticultural organization

    Harvard, MA · 8 mi away

    Ask it
    Proof for Harvard Educators Association
    IRS exempt-organization registration
    IRS 237162104
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Harvard, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 237162104 → IRS search

  14. Iaff Devens Firefighters Union S 19

    Active501(c)(5) labor, agricultural or horticultural organization

    Devens, MA · 10 mi away

    Ask it
    Proof for Iaff Devens Firefighters Union S 19
    IRS exempt-organization registration
    IRS 046143928
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Devens, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 046143928 → IRS search

  15. International Association of Fire Fighters

    Active501(c)(5) labor, agricultural or horticultural organization

    Maynard, MA · 6 mi away

    Ask it
    Proof for International Association of Fire Fighters
    IRS exempt-organization registration
    IRS 237082519
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Maynard, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 237082519 → IRS search

  16. International Association of Fire Fighters

    Active501(c)(5) labor, agricultural or horticultural organization

    Acton, MA · 9 mi away

    Ask it
    Proof for International Association of Fire Fighters
    IRS exempt-organization registration
    IRS 237082510
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Acton, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 237082510 → IRS search

  17. International Association of Fire Fighters

    Active501(c)(5) labor, agricultural or horticultural organization

    Framingham, MA · 8 mi away

    Ask it
    Proof for International Association of Fire Fighters
    IRS exempt-organization registration
    IRS 237011638
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Framingham, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 237011638 → IRS search

  18. International Association of Fire Fighters

    Active501(c)(5) labor, agricultural or horticultural organization

    Northborough, MA · 6 mi away

    Ask it
    Proof for International Association of Fire Fighters
    IRS exempt-organization registration
    IRS 912004965
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Northborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 912004965 → IRS search

  19. International Association of Fire Fighters

    Active501(c)(5) labor, agricultural or horticultural organization

    Westborough, MA · 9 mi away

    Ask it
    Proof for International Association of Fire Fighters
    IRS exempt-organization registration
    IRS 042940750
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Westborough, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 042940750 → IRS search

  20. International Association of Fire Fighters

    Active501(c)(5) labor, agricultural or horticultural organization

    Sudbury, MA · 7 mi away

    Ask it
    Proof for International Association of Fire Fighters
    IRS exempt-organization registration
    IRS 510226959
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(5) labor, agricultural or horticultural organization
    Checked
    Nov 9, 2026
    Where
    Sudbury, MA · serves Massachusetts
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 510226959 → IRS search

More cities in Massachusetts

Boston 282Worcester 26Springfield 23Quincy 21Dorchester 19Leominster 13New Bedford 13Taunton 13Pittsfield 12Roslindale 12Cambridge 11Norwood 11Braintree 10Fall River 9Fitchburg 9Lynn 9

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