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NAICS 561621 · Security Systems Services (except Locksmiths)

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Security systems in El Monte, CA

Security systems in El Monte, CA; 718 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. A & G Security Inc

    ActiveAlarm Company Operator

    El Monte, CA

    Ask it
    Proof for A & G Security Inc
    License
    DCA BSIS-ACO-4285
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Oct 31, 2027
    Checked
    Oct 23, 2026
    Where
    El Monte, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 4285 → California Department of Consumer Affairs search

  2. Advance Alarm

    ActiveAlarm Company Operator

    El Monte, CA

    Ask it
    Proof for Advance Alarm
    License
    DCA BSIS-ACO-3605
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    May 31, 2027
    Checked
    Oct 23, 2026
    Where
    El Monte, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 3605 → California Department of Consumer Affairs search

  3. Amtec Electronic Eng & Alarm Inc

    ActiveAlarm Company Operator

    El Monte, CA

    Ask it
    Proof for Amtec Electronic Eng & Alarm Inc
    License
    DCA BSIS-ACO-2726
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Dec 31, 2027
    Checked
    Oct 23, 2026
    Where
    El Monte, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 2726 → California Department of Consumer Affairs search

  4. E R S Security Alarm Systems, Inc

    ActiveAlarm Company Operator

    El Monte, CA

    Ask it
    Proof for E R S Security Alarm Systems, Inc
    License
    DCA BSIS-ACO-2321
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Jan 31, 2028
    Checked
    Oct 23, 2026
    Where
    El Monte, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 2321 → California Department of Consumer Affairs search

  5. Ee Systems Group Inc

    Security systems

    El Monte, CA

    CallAsk it
    Proof for Ee Systems Group Inc
    Where
    El Monte, CA · serves California
    Phone
    (877) 579-3889
    Listing
    Built from public records. Not claimed yet, so call them directly.

  6. SmarterHome.ai - Internet & Home Security

    Security systems

    El Monte, CA

    CallAsk it
    Proof for SmarterHome.ai - Internet & Home Security
    Where
    El Monte, CA · serves California
    Phone
    (855) 516-3319
    Listing
    Built from public records. Not claimed yet, so call them directly.

  7. SmarterHome.ai - Internet & Home Security

    Security systems

    El Monte, CA

    CallAsk it
    Proof for SmarterHome.ai - Internet & Home Security
    Where
    El Monte, CA · serves California
    Phone
    (855) 239-5228
    Listing
    Built from public records. Not claimed yet, so call them directly.

  8. Bell Security Systems, Inc.

    ActiveAlarm Company Operator

    Temple City, CA · 2 mi away

    CallAsk it
    Proof for Bell Security Systems, Inc.
    License
    DCA BSIS-ACO-6026
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Apr 30, 2028
    Checked
    Oct 23, 2026
    Where
    Temple City, CA · serves California
    Phone
    (800) 606-6688
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 6026 → California Department of Consumer Affairs search

  9. Diversified Alarm Services Inc

    ActivePrivate motor carrier

    San Gabriel, CA · 4 mi away

    CallAsk it
    Proof for Diversified Alarm Services Inc
    USDOT registration
    FMCSA 2761375
    Issuer
    FMCSA
    Status
    Active
    Class
    Private motor carrier
    Checked
    Oct 23, 2026
    Where
    San Gabriel, CA · serves California
    Phone
    (323) 980-9528
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → FMCSA record

  10. Diversified Alarm Services, Inc.

    ActiveCorporation registered in SAM.gov

    San Gabriel, CA · 4 mi away

    Ask it
    Proof for Diversified Alarm Services, Inc.
    SAM.gov registration
    SAM.gov Z3AKPAYURNC2
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jul 22, 2027
    Checked
    Oct 23, 2026
    Where
    San Gabriel, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  11. Arroyo 1 Alarm Company

    ActiveAlarm Company Operator

    La Puente, CA · 3 mi away

    Ask it
    Proof for Arroyo 1 Alarm Company
    License
    DCA BSIS-ACO-8250
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Dec 31, 2027
    Checked
    Oct 23, 2026
    Where
    La Puente, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 8250 → California Department of Consumer Affairs search

  12. Beta Security System

    ActiveAlarm Company Operator

    Temple City, CA · 2 mi away

    Ask it
    Proof for Beta Security System
    License
    DCA BSIS-ACO-3042
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Feb 28, 2027
    Checked
    Oct 23, 2026
    Where
    Temple City, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 3042 → California Department of Consumer Affairs search

  13. Calcom Monitoring

    ActiveAlarm Company Operator

    Rosemead, CA · 3 mi away

    Ask it
    Proof for Calcom Monitoring
    License
    DCA BSIS-ACO-8058
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Sep 30, 2028
    Checked
    Oct 23, 2026
    Where
    Rosemead, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 8058 → California Department of Consumer Affairs search

  14. Coast Line

    ActiveAlarm Company Operator

    Irwindale, CA · 4 mi away

    Ask it
    Proof for Coast Line
    License
    DCA BSIS-ACO-7622
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Sep 30, 2028
    Checked
    Oct 23, 2026
    Where
    Irwindale, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7622 → California Department of Consumer Affairs search

  15. Dpg Security Corporation

    ActiveAlarm Company Operator

    Temple City, CA · 2 mi away

    Ask it
    Proof for Dpg Security Corporation
    License
    DCA BSIS-ACO-7796
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Sep 30, 2028
    Checked
    Oct 23, 2026
    Where
    Temple City, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7796 → California Department of Consumer Affairs search

  16. Earl Security Inc

    ActiveAlarm Company Operator

    San Gabriel, CA · 4 mi away

    Ask it
    Proof for Earl Security Inc
    License
    DCA BSIS-ACO-3034
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Feb 28, 2027
    Checked
    Oct 23, 2026
    Where
    San Gabriel, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 3034 → California Department of Consumer Affairs search

  17. Galaxy Eyes Security Systems, Inc.

    ActiveAlarm Company Operator

    Temple City, CA · 2 mi away

    Ask it
    Proof for Galaxy Eyes Security Systems, Inc.
    License
    DCA BSIS-ACO-7399
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Dec 31, 2027
    Checked
    Oct 23, 2026
    Where
    Temple City, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7399 → California Department of Consumer Affairs search

  18. Post Alarm Systems

    ActiveAlarm Company Operator

    Arcadia, CA · 4 mi away

    Ask it
    Proof for Post Alarm Systems
    License
    DCA BSIS-ACO-1843
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Jun 30, 2027
    Checked
    Oct 23, 2026
    Where
    Arcadia, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 1843 → California Department of Consumer Affairs search

  19. Post Alarm Systems

    ActivePrivate Patrol Operator+2

    Arcadia, CA · 4 mi away

    Ask it
    Proof for Post Alarm Systems
    License
    DCA BSIS-PPO-10170
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Private Patrol Operator; PPO Branch; Alarm Company Branch
    Expires
    Feb 28, 2027
    Checked
    Oct 23, 2026
    Where
    Arcadia, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 10170 → California Department of Consumer Affairs search

  20. Professional Home Automation and Security LLC

    ActiveAlarm Company Operator

    San Gabriel, CA · 4 mi away

    Ask it
    Proof for Professional Home Automation and Security LLC
    License
    DCA BSIS-ACO-7880
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Jul 31, 2027
    Checked
    Oct 23, 2026
    Where
    San Gabriel, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7880 → California Department of Consumer Affairs search

More cities in California

Livermore 83San Diego 66Los Angeles 58Sacramento 52San Jose 48Fresno 44Anaheim 32San Francisco 30Bakersfield 26Irvine 25Riverside 24Simi Valley 19Stockton 18El Cajon 17Corona 16Huntington Beach 16

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