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NAICS 561621 · Security Systems Services (except Locksmiths)

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Security systems in San Mateo, CA

Security systems in San Mateo, CA; 272 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. Ringhammer Systems

    ActiveAlarm Company Operator

    San Mateo, CA

    Ask it
    Proof for Ringhammer Systems
    License
    DCA BSIS-ACO-6804
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Nov 30, 2027
    Checked
    Oct 23, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 6804 → California Department of Consumer Affairs search

  2. Security Surveillance CO

    ActiveAlarm Company Operator

    San Mateo, CA

    Ask it
    Proof for Security Surveillance CO
    License
    DCA BSIS-ACO-879
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Mar 31, 2027
    Checked
    Oct 23, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 879 → California Department of Consumer Affairs search

  3. Verkada Inc

    ActiveAlarm Company Operator

    San Mateo, CA

    Ask it
    Proof for Verkada Inc
    License
    DCA BSIS-ACO-8017
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Sep 30, 2027
    Checked
    Oct 23, 2026
    Where
    San Mateo, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 8017 → California Department of Consumer Affairs search

  4. All City Alarm, Inc

    ActiveAlarm Company Operator

    Belmont, CA · 3 mi away

    Ask it
    Proof for All City Alarm, Inc
    License
    DCA BSIS-ACO-3427
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Sep 30, 2028
    Checked
    Oct 23, 2026
    Where
    Belmont, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 3427 → California Department of Consumer Affairs search

  5. California Electric CO.

    ActiveAlarm Company Operator

    Burlingame, CA · 4 mi away

    Ask it
    Proof for California Electric CO.
    License
    DCA BSIS-ACO-7159
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    May 31, 2028
    Checked
    Oct 23, 2026
    Where
    Burlingame, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7159 → California Department of Consumer Affairs search

  6. Dea Security Systems CO., Inc.

    ActiveCorporation registered in SAM.gov

    Belmont, CA · 3 mi away

    Ask it
    Proof for Dea Security Systems CO., Inc.
    SAM.gov registration
    SAM.gov KV7DNX1MS7C4
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Mar 31, 2027
    Checked
    Nov 2, 2026
    Where
    Belmont, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  7. Dea Security Systems CO., Inc.

    ActiveAlarm Company Operator

    Belmont, CA · 3 mi away

    Ask it
    Proof for Dea Security Systems CO., Inc.
    License
    DCA BSIS-ACO-5953
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Oct 31, 2027
    Checked
    Oct 23, 2026
    Where
    Belmont, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 5953 → California Department of Consumer Affairs search

  8. Fireside Security Group, Inc. DBA Fireside Security

    ActiveAlarm Company Operator

    Redwood City, CA · 4 mi away

    Ask it
    Proof for Fireside Security Group, Inc. DBA Fireside Security
    License
    DCA BSIS-ACO-7133
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Apr 30, 2028
    Checked
    Oct 23, 2026
    Where
    Redwood City, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7133 → California Department of Consumer Affairs search

  9. Regent 5

    ActiveAlarm Company Operator

    San Carlos, CA · 5 mi away

    Ask it
    Proof for Regent 5
    License
    DCA BSIS-ACO-7798
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Sep 30, 2028
    Checked
    Oct 23, 2026
    Where
    San Carlos, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7798 → California Department of Consumer Affairs search

  10. West Coast Security Inc

    ActiveAlarm Company Operator

    San Carlos, CA · 5 mi away

    Ask it
    Proof for West Coast Security Inc
    License
    DCA BSIS-ACO-5659
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Nov 30, 2027
    Checked
    Oct 23, 2026
    Where
    San Carlos, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 5659 → California Department of Consumer Affairs search

  11. First Security Services

    Security systems

    Burlingame, CA · 4 mi away

    CallAsk it
    Proof for First Security Services
    Where
    Burlingame, CA · serves California
    Phone
    (650) 938-1110
    Listing
    Built from public records. Not claimed yet, so call them directly.

  12. Hermary's LLC

    ExpiredAlarm Company Operator

    San Carlos, CA · 5 mi away

    CallAsk it
    Proof for Hermary's LLC
    License
    DCA BSIS-ACO-7804
    Issuer
    California Department of Consumer Affairs
    Status
    Expired
    Class
    Alarm Company Operator
    Expires
    Oct 31, 2026
    Checked
    Oct 23, 2026
    Where
    San Carlos, CA · serves California
    Phone
    (650) 592-9480
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7804 → California Department of Consumer Affairs search

  13. Idemia

    Security systems

    Redwood City, CA · 4 mi away

    Ask it
    Proof for Idemia
    Where
    Redwood City, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.

  14. Bay Alarm Company

    ActiveAlarm Company Branch

    South San Francisco, CA · 9 mi away

    CallAsk it
    Proof for Bay Alarm Company
    License
    DCA BSIS-ACB-5373
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Branch
    Expires
    Oct 31, 2028
    Checked
    Oct 23, 2026
    Where
    South San Francisco, CA · serves California
    Phone
    (800) 610-1000
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 5373 → California Department of Consumer Affairs search

  15. Silicon Valley Surveillance

    ActiveCorporation registered in SAM.gov

    Redwood City, CA · 8 mi away

    Ask it
    Proof for Silicon Valley Surveillance
    SAM.gov registration
    SAM.gov P3M5NBXYMLS2
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Dec 4, 2026
    Checked
    Nov 2, 2026
    Where
    Redwood City, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  16. A+ Alarm Specialists

    ActiveAlarm Company Operator

    South San Francisco, CA · 9 mi away

    Ask it
    Proof for A+ Alarm Specialists
    License
    DCA BSIS-ACO-6666
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Dec 31, 2026
    Checked
    Oct 23, 2026
    Where
    South San Francisco, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 6666 → California Department of Consumer Affairs search

  17. Associated Electric & Security Inc.

    ActiveAlarm Company Operator

    South San Francisco, CA · 9 mi away

    Ask it
    Proof for Associated Electric & Security Inc.
    License
    DCA BSIS-ACO-7890
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Aug 31, 2027
    Checked
    Oct 23, 2026
    Where
    South San Francisco, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7890 → California Department of Consumer Affairs search

  18. Associated Security Alarm CO.

    ActiveAlarm Company Operator

    South San Francisco, CA · 9 mi away

    Ask it
    Proof for Associated Security Alarm CO.
    License
    DCA BSIS-ACO-5646
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Oct 31, 2027
    Checked
    Oct 23, 2026
    Where
    South San Francisco, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 5646 → California Department of Consumer Affairs search

  19. Budget Alarms

    ActiveAlarm Company Operator

    South San Francisco, CA · 9 mi away

    Ask it
    Proof for Budget Alarms
    License
    DCA BSIS-ACO-2252
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Oct 31, 2027
    Checked
    Oct 23, 2026
    Where
    South San Francisco, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 2252 → California Department of Consumer Affairs search

  20. Citadel Systems

    ActiveAlarm Company Operator

    Millbrae, CA · 6 mi away

    Ask it
    Proof for Citadel Systems
    License
    DCA BSIS-ACO-5247
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Dec 31, 2026
    Checked
    Oct 23, 2026
    Where
    Millbrae, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 5247 → California Department of Consumer Affairs search

More cities in California

Los Angeles 85San Diego 85Livermore 84Sacramento 67San Jose 60Fresno 51Anaheim 38Irvine 36San Francisco 35Riverside 34Bakersfield 29Orange 21Simi Valley 21Fremont 19Glendale 19Stockton 19

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