Security Systems Listings

The listings indexed on this site cover licensed and registered security systems providers operating across the United States, organized by service category, geographic coverage, and applicable licensing jurisdiction. Each entry reflects a distinct segment of the physical security and cybersecurity-for-physical-systems sector — a discipline governed by state contractor licensing boards, Underwriters Laboratories (UL) listing standards, and federal frameworks including guidance from the Cybersecurity and Infrastructure Security Agency (CISA). The listings function as a structured reference for service seekers, procurement officers, facility managers, and researchers navigating a fragmented and heavily regulated industry.

What each listing covers

Each listing in this directory corresponds to a discrete security systems provider or integrator operating within at least one identifiable U.S. licensing jurisdiction. Listings are organized under five primary service classifications:

1. Access control systems — installation, integration, and maintenance of credential-based entry management platforms, including card readers, biometric devices, and cloud-managed controllers
2. Video surveillance and CCTV — camera network deployment, IP-based recording infrastructure, video management systems (VMS), and analytics integration
3. Intrusion detection and alarm systems — sensor installation, central station monitoring, and UL-listed panel configurations for commercial and institutional facilities
4. Integrated physical security systems — converged deployments combining access control, surveillance, and intrusion detection under a unified management layer
5. Cybersecurity for connected physical devices — network segmentation, firmware management, and credential hardening for IP-based physical security infrastructure, as distinct from enterprise IT security services

Providers that hold a UL listing under UL 2050 (central station alarm monitoring) or whose installations conform to UL 681 (installation and classification of burglar and holdup alarm systems) are identified where that certification is part of the provider's documented profile. ASIS International — the principal standards body for the security management profession — defines the professional scope against which practitioner qualifications within listings are assessed.

The distinction between an alarm systems contractor and a full security integrator is structurally significant: integrators typically hold low-voltage electrical licensing in addition to alarm contractor registration, while monitoring-only firms operate under a narrower licensing class. The Security Systems Directory Purpose and Scope page details the classification framework applied across all entries.

Geographic distribution

Listings span all 50 U.S. states, with provider density concentrated in states that maintain the most active contractor licensing infrastructure. California (Contractors State License Board, C-7 Low Voltage Systems classification), Texas (Texas Department of Insurance Alarm Systems Program), and Florida (Florida Department of Agriculture and Consumer Services, Division of Licensing) represent the three highest-volume licensing jurisdictions in the directory by registered firm count.

Licensing reciprocity between states is limited and jurisdiction-specific. A firm licensed in Texas does not automatically qualify to operate in California or New York without separate state registration. Entries reflect the primary licensing state of record; where a provider holds multi-state licenses, each active jurisdiction is noted. Federal installations — those operating on General Services Administration (GSA) facilities or Department of Defense properties — are subject to separate procurement frameworks under FAR Part 46 and applicable security specifications, and those providers are flagged distinctly.

Metropolitan statistical areas (MSAs) with the highest commercial real estate density — including New York–Newark, Los Angeles–Long Beach, and Chicago–Naperville — account for a disproportionate share of enterprise-scale integrators within the listings, while rural and lower-density markets are more commonly served by regional alarm contractors and monitoring service affiliates.

How to read an entry

Each directory entry follows a standardized field structure. The fields present in every listing are:

1. Provider name — legal business name as registered with the applicable state licensing authority
2. Primary service classification — drawn from the five categories defined above
3. Licensing jurisdiction(s) — state(s) in which the provider holds an active contractor or alarm license
4. License class and number — where publicly available from the licensing board
5. UL or third-party certification — listed only where the provider holds a verifiable, named certification (e.g., UL 2050, FM Approved)
6. Service geography — the operational coverage area, expressed as state, metro, or regional scope
7. Specialty designations — including cybersecurity-integrated deployments, critical infrastructure experience, or ASIS Certified Protection Professional (CPP) staff credentialing

Fields are populated from public licensing databases, self-reported provider profiles, and third-party verification sources. Entries with incomplete licensing verification are held from publication until the licensing field can be confirmed against a named public registry. The How to Use This Security Systems Resource page explains the verification methodology in full.

What listings include and exclude

The directory includes providers that meet all three of the following criteria: active state-issued contractor or alarm license, a physical service territory within at least one U.S. state, and a primary business activity that falls within the five service classifications listed above.

The directory excludes the following categories:

• Equipment manufacturers and distributors — firms that manufacture or wholesale physical security hardware without performing installation or integration services
• IT-only managed security service providers (MSSPs) — firms whose scope is limited to enterprise network security, endpoint protection, or SOC operations without a physical security systems component
• Monitoring-only call centers — unless the firm also holds an alarm contractor license and performs installation or inspection in at least one jurisdiction
• Unlicensed or registration-pending applicants — firms whose licensing status cannot be verified against a named state registry at the time of listing review
• Federal government integrators operating exclusively on classified contracts — whose procurement occurs outside commercially accessible channels

Product reviews, equipment comparisons, and installation pricing benchmarks are not part of the listings data. The directory is a provider reference, not a procurement evaluation tool. For the full scope of what this site covers and how listings relate to the broader sector structure, see the Security Systems Listings index and the Security Systems Directory Purpose and Scope reference page.