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NAICS 813910 · Business Associations

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Business association in San Mateo, CA

11 business association in San Mateo, CA; 889 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. California Optometric Association

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for California Optometric Association
    IRS exempt-organization registration
    IRS 946129284
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 946129284 → IRS search

  2. California Society of Facial Plastic Surgery Inc

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for California Society of Facial Plastic Surgery Inc
    IRS exempt-organization registration
    IRS 330895391
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 330895391 → IRS search

  3. California State Division Intrnatl Association for Identification

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for California State Division Intrnatl Association for Identification
    IRS exempt-organization registration
    IRS 956078706
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 956078706 → IRS search

  4. Downtown San Mateo Association

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for Downtown San Mateo Association
    IRS exempt-organization registration
    IRS 941591340
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 941591340 → IRS search

  5. Golden Gate Society of Enrolled Agents Inc

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for Golden Gate Society of Enrolled Agents Inc
    IRS exempt-organization registration
    IRS 800832311
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 800832311 → IRS search

  6. Hungarian American Chamber of Commerce IN the U S Inc

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for Hungarian American Chamber of Commerce IN the U S Inc
    IRS exempt-organization registration
    IRS 943133157
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 943133157 → IRS search

  7. Keizai Silicon Valley

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for Keizai Silicon Valley
    IRS exempt-organization registration
    IRS 204049548
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 204049548 → IRS search

  8. San Mateo Chamber of Commerce

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for San Mateo Chamber of Commerce
    IRS exempt-organization registration
    IRS 940838880
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 940838880 → IRS search

  9. San Mateo County Association of Realtors Inc

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for San Mateo County Association of Realtors Inc
    IRS exempt-organization registration
    IRS 943207822
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 943207822 → IRS search

  10. San Mateo County Chapter of the American Institute of Architects

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for San Mateo County Chapter of the American Institute of Architects
    IRS exempt-organization registration
    IRS 942861627
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 942861627 → IRS search

  11. The Bakers Dozen

    Active501(c)(6) business league

    San Mateo, CA

    Ask it
    Proof for The Bakers Dozen
    IRS exempt-organization registration
    IRS 943327232
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 943327232 → IRS search

  12. Burlingame Chamber of Commerce

    Active501(c)(6) business league

    Burlingame, CA · 4 mi away

    CallAsk it
    Proof for Burlingame Chamber of Commerce
    IRS exempt-organization registration
    IRS 941073698
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    Burlingame, CA · serves California
    Phone
    (650) 344-1735
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 941073698 → IRS search

  13. Chamber San Mateo County

    Active501(c)(6) business league

    Redwood City, CA · 4 mi away

    CallAsk it
    Proof for Chamber San Mateo County
    IRS exempt-organization registration
    IRS 940377914
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    Redwood City, CA · serves California
    Phone
    (650) 364-1722
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 940377914 → IRS search

  14. Foster City Chamber of Commerce

    Active501(c)(6) business league

    Foster City, CA · 2 mi away

    CallAsk it
    Proof for Foster City Chamber of Commerce
    IRS exempt-organization registration
    IRS 952760026
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    Foster City, CA · serves California
    Phone
    (650) 573-7600
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 952760026 → IRS search

  15. Oriental Food Association

    Active501(c)(6) business league

    Burlingame, CA · 4 mi away

    CallAsk it
    Proof for Oriental Food Association
    IRS exempt-organization registration
    IRS 943205274
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    Burlingame, CA · serves California
    Phone
    (650) 513-1181
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 943205274 → IRS search

  16. San Mateo County Dental Society

    Active501(c)(6) business league

    San Carlos, CA · 5 mi away

    CallAsk it
    Proof for San Mateo County Dental Society
    IRS exempt-organization registration
    IRS 941700499
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    San Carlos, CA · serves California
    Phone
    (650) 637-1121
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 941700499 → IRS search

  17. San Mateo County Medical Association

    Active501(c)(6) business league

    Foster City, CA · 2 mi away

    CallAsk it
    Proof for San Mateo County Medical Association
    IRS exempt-organization registration
    IRS 941121908
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    Foster City, CA · serves California
    Phone
    (650) 312-1663
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 941121908 → IRS search

  18. Lumiflex Corp

    ActiveCorporation registered in SAM.gov

    Burlingame, CA · 4 mi away

    Ask it
    Proof for Lumiflex Corp
    SAM.gov registration
    SAM.gov M3ATRQQ4UM46
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Dec 29, 2026
    Checked
    Nov 2, 2026
    Where
    Burlingame, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  19. Regencor Inc

    ActiveCorporation registered in SAM.gov

    San Carlos, CA · 5 mi away

    Ask it
    Proof for Regencor Inc
    SAM.gov registration
    SAM.gov JMCMLK8N5HR7
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Mar 25, 2027
    Checked
    Nov 2, 2026
    Where
    San Carlos, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  20. Accumulus Synergy Inc

    Active501(c)(6) business league

    Burlingame, CA · 4 mi away

    Ask it
    Proof for Accumulus Synergy Inc
    IRS exempt-organization registration
    IRS 852130952
    Issuer
    IRS
    Status
    Active
    Class
    501(c)(6) business league
    Checked
    Nov 9, 2026
    Where
    Burlingame, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 852130952 → IRS search

More cities in California

Sacramento 693Los Angeles 321San Diego 294San Francisco 255San Jose 97Irvine 87Oakland 76Fresno 75Long Beach 60Bakersfield 55Santa Rosa 51Riverside 50Newport Beach 46Pasadena 46Visalia 46Walnut Creek 46

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