Home security monitoring and response companies in the United States
Compare companies offering professional alarm monitoring and an escalation process when a security or safety alert is received.
Side-by-side monitoring comparison
Use this as a starting framework. Confirm package availability, contract terms, verification rules and response at the property address.
| Company | Monitoring | Escalation / response | Installation | Listing status |
|---|---|---|---|---|
| ADT | 24/7 ADT professional monitoring | Verified alarms may be sent to the appropriate emergency-service centre | Professional installation; some equipment options vary | Unclaimed · checked 1 Sep 2026 |
| Vivint | 24/7 professional monitoring | Monitoring agents contact the customer and may request first responders when an emergency is confirmed or contact fails | Professional installation | Unclaimed · checked 1 Sep 2026 |
| SimpliSafe | Optional 24/7 professional monitoring | Agents follow the selected plan’s verification and emergency-dispatch process | Self-installation with support | Unclaimed · checked 1 Sep 2026 |
| Ring Alarm | Subscription-dependent professional monitoring | Monitoring centre follows the plan’s contact and emergency-service request procedures | Self-installation | Unclaimed · checked 1 Sep 2026 |
| Brinks Home | 24/7 professional monitoring | Monitoring agents follow the account’s verification, contact and emergency-dispatch procedure | Professional or supported installation options vary by package and location | Unclaimed · checked 1 Sep 2026 |
ADT
UnclaimedLast independently checked: 1 September 2026
National professionally installed home-security provider with 24/7 professional monitoring and emergency-service escalation.
- Monitoring
- 24/7 ADT professional monitoring
- Escalation/response
- Verified alarms may be sent to the appropriate emergency-service centre
- Installation
- Professional installation; some equipment options vary
Vivint
UnclaimedLast independently checked: 1 September 2026
Professionally installed smart-home security with US-based professional monitoring included in service plans.
- Monitoring
- 24/7 professional monitoring
- Escalation/response
- Monitoring agents contact the customer and may request first responders when an emergency is confirmed or contact fails
- Installation
- Professional installation
SimpliSafe
UnclaimedLast independently checked: 1 September 2026
Self-installed equipment with optional monitoring tiers and plan-dependent alarm verification features.
- Monitoring
- Optional 24/7 professional monitoring
- Escalation/response
- Agents follow the selected plan’s verification and emergency-dispatch process
- Installation
- Self-installation with support
Ring Alarm
UnclaimedLast independently checked: 1 September 2026
DIY alarm ecosystem with optional professional monitoring availability depending on subscription and location.
- Monitoring
- Subscription-dependent professional monitoring
- Escalation/response
- Monitoring centre follows the plan’s contact and emergency-service request procedures
- Installation
- Self-installation
Brinks Home
UnclaimedLast independently checked: 1 September 2026
US smart-home security provider offering professionally monitored alarm systems and connected security equipment.
- Monitoring
- 24/7 professional monitoring
- Escalation/response
- Monitoring agents follow the account’s verification, contact and emergency-dispatch procedure
- Installation
- Professional or supported installation options vary by package and location
Questions to ask every provider
- Who operates the monitoring centre, and is it independently certified?
- How are alarms verified before escalation?
- Who is contacted first: you, a keyholder, police, fire service or a private responder?
- Which response services cost extra or depend on location?
- What happens during internet, mobile-network or power failure?
- What is the minimum contract, cancellation process and equipment ownership position?
Ask about local alarm permits, false-alarm charges, enhanced call verification and whether your jurisdiction accepts electronic or video-verified alarm information.
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Register or claim a business →Listings are informational and are not endorsements. Service availability and response policies change. Unclaimed listings are based on publicly available provider information and have not been verified by the company. See our listing-status and verification standard.
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Directory record status
| Provider | Service area | Monitoring type | Claim status | Last checked |
|---|---|---|---|---|
| ADT | Confirm address or postcode directly | Professional monitoring | Unclaimed | 2 September 2026 |
| Vivint | Confirm address or postcode directly | Professional monitoring | Unclaimed | 2 September 2026 |
| SimpliSafe | Confirm address or postcode directly | Optional professional monitoring | Unclaimed | 2 September 2026 |
| Ring Alarm | Confirm address or postcode directly | Optional professional monitoring where offered | Unclaimed | 2 September 2026 |
| Brinks Home | Confirm address or postcode directly | Professional monitoring | Unclaimed | 2 September 2026 |
Licence/accreditation source: Check the state or local licensing authority for the installation address. A register entry must be checked for the exact legal entity and relevant service scope; it is not a performance guarantee.
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