DouxProcess Directory
Add to your AI

Ask for any business in the US.

NAICS 561621 · Security Systems Services (except Locksmiths)

you asked:

Security systems in Castro Valley, CA

Security systems in Castro Valley, CA; 394 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. Advantage Security Technologies

    ActiveAlarm Company Operator

    Castro Valley, CA

    Ask it
    Proof for Advantage Security Technologies
    License
    DCA BSIS-ACO-7085
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Nov 30, 2027
    Checked
    Oct 23, 2026
    Where
    Castro Valley, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7085 → California Department of Consumer Affairs search

  2. Alertex Security Systems

    ActiveAlarm Company Operator

    Castro Valley, CA

    Ask it
    Proof for Alertex Security Systems
    License
    DCA BSIS-ACO-2925
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Aug 31, 2028
    Checked
    Oct 23, 2026
    Where
    Castro Valley, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 2925 → California Department of Consumer Affairs search

  3. Onpoint Systems LLC

    ActiveAlarm Company Operator

    Castro Valley, CA

    Ask it
    Proof for Onpoint Systems LLC
    License
    DCA BSIS-ACO-7913
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Nov 30, 2027
    Checked
    Oct 23, 2026
    Where
    Castro Valley, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7913 → California Department of Consumer Affairs search

  4. Golden State Smart

    Security systems

    Castro Valley, CA

    CallAsk it
    Proof for Golden State Smart
    Where
    Castro Valley, CA · serves California
    Phone
    (888) 330-0797
    Listing
    Built from public records. Not claimed yet, so call them directly.

  5. Action Alarms

    ActiveAlarm Company Operator

    San Lorenzo, CA · 4 mi away

    CallAsk it
    Proof for Action Alarms
    License
    DCA BSIS-ACO-3610
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    May 31, 2027
    Checked
    Oct 23, 2026
    Where
    San Lorenzo, CA · serves California
    Phone
    (510) 481-5565
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 3610 → California Department of Consumer Affairs search

  6. Metal Gear LLC

    ActiveCorporation registered in SAM.gov

    Hayward, CA · 3 mi away

    Ask it
    Proof for Metal Gear LLC
    SAM.gov registration
    SAM.gov N8CWCDC5K9U5
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Aug 31, 2027
    Checked
    Nov 2, 2026
    Where
    Hayward, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  7. Stingray Security Systems, Inc.

    ActiveAlarm Company Operator

    Hayward, CA · 3 mi away

    Ask it
    Proof for Stingray Security Systems, Inc.
    License
    DCA BSIS-ACO-6478
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Jun 30, 2027
    Checked
    Oct 23, 2026
    Where
    Hayward, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 6478 → California Department of Consumer Affairs search

  8. Adt Security Services

    Security systems

    Hayward, CA · 3 mi away

    CallAsk it
    Proof for Adt Security Services
    Where
    Hayward, CA · serves California
    Phone
    (800) 672-3372
    Listing
    Built from public records. Not claimed yet, so call them directly.

  9. Bay Alarm Company

    ActiveAlarm Company Branch

    Hayward, CA · 6 mi away

    CallAsk it
    Proof for Bay Alarm Company
    License
    DCA BSIS-ACB-3222
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Branch
    Expires
    Apr 30, 2028
    Checked
    Oct 23, 2026
    Where
    Hayward, CA · serves California
    Phone
    (800) 610-1000
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 3222 → California Department of Consumer Affairs search

  10. Cal Tech Security Services IN

    ActiveCorporation registered in SAM.gov

    San Ramon, CA · 9 mi away

    Ask it
    Proof for Cal Tech Security Services IN
    SAM.gov registration
    SAM.gov CNYLDR4BCGH1
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Feb 13, 2027
    Checked
    Nov 2, 2026
    Where
    San Ramon, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  11. Fireside Security

    ActiveCorporation registered in SAM.gov

    Hayward, CA · 6 mi away

    Ask it
    Proof for Fireside Security
    SAM.gov registration
    SAM.gov NML8X17NC3K4
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    May 27, 2027
    Checked
    Nov 2, 2026
    Where
    Hayward, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  12. Golden Gate Integrated Solutions

    ActiveCorporation registered in SAM.gov

    Dublin, CA · 9 mi away

    Ask it
    Proof for Golden Gate Integrated Solutions
    SAM.gov registration
    SAM.gov RFGEN1CZ6D73
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Jul 15, 2027
    Checked
    Nov 2, 2026
    Where
    Dublin, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  13. Nextech Security Solutions

    ActiveCorporation registered in SAM.gov

    San Ramon, CA · 9 mi away

    Ask it
    Proof for Nextech Security Solutions
    SAM.gov registration
    SAM.gov CX7NYPD8VTM5
    Issuer
    SAM.gov
    Status
    Active
    Class
    Corporation registered in SAM.gov
    Expires
    Aug 17, 2027
    Checked
    Nov 2, 2026
    Where
    San Ramon, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → SAM.gov record

  14. 24Incontrol

    ActiveAlarm Company Operator

    Moraga, CA · 9 mi away

    Ask it
    Proof for 24Incontrol
    License
    DCA BSIS-ACO-7650
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Dec 31, 2028
    Checked
    Oct 23, 2026
    Where
    Moraga, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7650 → California Department of Consumer Affairs search

  15. A3 Smart Home LP

    ActiveAlarm Company Branch

    Hayward, CA · 6 mi away

    Ask it
    Proof for A3 Smart Home LP
    License
    DCA BSIS-ACB-5984
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Branch
    Expires
    Mar 31, 2027
    Checked
    Oct 23, 2026
    Where
    Hayward, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 5984 → California Department of Consumer Affairs search

  16. A3 Smart Home LP

    ActiveAlarm Company Branch

    Dublin, CA · 9 mi away

    Ask it
    Proof for A3 Smart Home LP
    License
    DCA BSIS-ACB-5979
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Branch
    Expires
    Jan 31, 2027
    Checked
    Oct 23, 2026
    Where
    Dublin, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 5979 → California Department of Consumer Affairs search

  17. Advanced Security Engineering

    ActiveAlarm Company Operator

    Dublin, CA · 9 mi away

    Ask it
    Proof for Advanced Security Engineering
    License
    DCA BSIS-ACO-6831
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Jan 31, 2028
    Checked
    Oct 23, 2026
    Where
    Dublin, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 6831 → California Department of Consumer Affairs search

  18. Aeco Systems, Inc.

    ActiveAlarm Company Operator

    Hayward, CA · 6 mi away

    Ask it
    Proof for Aeco Systems, Inc.
    License
    DCA BSIS-ACO-8227
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Oct 31, 2027
    Checked
    Oct 23, 2026
    Where
    Hayward, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 8227 → California Department of Consumer Affairs search

  19. Avt Integration Inc.

    ActiveAlarm Company Operator

    San Ramon, CA · 6 mi away

    Ask it
    Proof for Avt Integration Inc.
    License
    DCA BSIS-ACO-8000
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Jun 30, 2027
    Checked
    Oct 23, 2026
    Where
    San Ramon, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 8000 → California Department of Consumer Affairs search

  20. Battalion One Fire Protection

    ActiveAlarm Company Operator

    San Leandro, CA · 6 mi away

    Ask it
    Proof for Battalion One Fire Protection
    License
    DCA BSIS-ACO-7658
    Issuer
    California Department of Consumer Affairs
    Status
    Active
    Class
    Alarm Company Operator
    Expires
    Jan 31, 2027
    Checked
    Oct 23, 2026
    Where
    San Leandro, CA · serves California
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Look up 7658 → 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

Free for people · nobody pays to rank. Run one of these businesses? Claim it free.

Checked facts from public license files · How ranking works