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DirJournal Editorial Verdict

Quadrant Information Security has cleared DirJournal's 12-point manual editorial audit and is verified as an active Cybersecurity & Digital Defense entity. Last reviewed August 25, 2026.

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Editorial Verification

Full Audit Transparency Report

Last Reviewed: August 25, 2026
  • 200 OK StatusVerified

    Primary website is live, secure (HTTPS), and free of malware.

  • Domain AgeVerified

    Real-world domain age (≥1 yr, verified via the Wayback Machine) OR pre-migration legacy ID OR ≥2 years of platform tenure. Survival across multiple search-engine update cycles is itself a trust signal.

  • Schema ValidationVerified

    Valid Organization / ProfessionalService JSON-LD emitted on every page load — checked at render time.

  • Citation ClarityVerified

    Verified outbound links to at least two authoritative sources (social profiles, sameAs URLs).

  • Operational HistoryVerified

    Minimum 12-month active history in the claimed industry — derived from the business's founding year, Wayback-verified domain age, or listing tenure (any one signal passes).

  • Entity RegistrationPending Manual Review

    Cross-referenced with official state or country business registries.

  • Physical FootprintPending Manual Review

    Verified non-virtual presence via Google Maps or official lease documentation.

  • Active LeadershipPending Manual Review

    Confirmation of key team members and executive roles.

  • NAP ConsistencyPending Manual Review

    Verified match of Name, Address, and Phone data across platforms.

  • Professional LicensingPending Manual Review

    Verification of required industry-specific certifications or licenses.

  • Sentiment AuditPending Manual Review

    Manual review of third-party reputation signals (BBB, Trustpilot, etc.).

  • Editorial DiscretionPending Manual Review

    Final human review to ensure the business provides genuine value.

About

Quadrant Information Security

Quadrant Information Security is a Jacksonville-founded cybersecurity operation that is now part of Harbor IT, a national managed IT and cybersecurity provider. Harbor states that Quadrant's existing cybersecurity team continues to deliver managed security, detection, response, threat hunting and risk-reduction services rather than being replaced by Harbor's general IT staff. The structure keeps Quadrant's security operations function separate from Harbor's day-to-day managed IT delivery teams while giving clients access to additional cloud, infrastructure, compliance and application expertise. Independent cybersecurity industry records document Quadrant as founded in 2011 and headquartered in Jacksonville, Florida. Historical services included managed security, enterprise security consulting, managed firewall services and security-event monitoring built around the Sagan platform. Harbor's current integration page states that existing Quadrant clients can continue using the same cybersecurity team and service model without being required to move helpdesk or infrastructure operations to Harbor. The supplied quadrantsec.com domain now redirects to Harbor IT's Quadrant integration page, confirming the business transition.

Quadrant Information Security is a cybersecurity operation founded in Jacksonville, Florida in 2011 and now integrated into Harbor IT. The supplied quadrantsec.com domain redirects to Harbor's current integration page, which states that Quadrant's cybersecurity team remains active inside the larger organization. Existing clients continue to work with the same dedicated security operations personnel. Quadrant's current role within Harbor covers managed cybersecurity, threat detection, response, threat hunting and risk reduction. Harbor states that the Quadrant security operations function remains distinct from its managed IT delivery teams, preserving separation between security oversight and day-to-day helpdesk, infrastructure and application management. Clients can also access Harbor resources in cloud, compliance, applications and managed IT when needed. Independent TAG Cyber records from 2018 document Quadrant as a Jacksonville company founded in 2011. At that time, its services included managed security, enterprise security consulting, managed firewalls and security-event monitoring through the Sagan platform. The current Harbor structure preserves the specialized security team while placing it inside a broader national technology organization.

DirJournal's Perspective · System-Derived Authority

Editorial analysis

Quadrant Information Security is listed on DirJournal under Cybersecurity & Digital Defense in Jacksonville, Florida, United States.

Reviewed by DirJournal Editorial Board

Frequently Asked

About Quadrant Information Security

What does Quadrant Information Security do?
Quadrant Information Security is a Jacksonville-founded cybersecurity operation that is now part of Harbor IT, a national managed IT and cybersecurity provider. Harbor states that Quadrant's existing cybersecurity team continues to deliver managed security, detection, response, threat hunting and risk-reduction services rather than being replaced by Harbor's general IT staff.
Where is Quadrant Information Security based?
Quadrant Information Security is based in Jacksonville, Florida, United States.
When was Quadrant Information Security founded?
Quadrant Information Security was founded in 2011 and has been operating for 15 years.
Technical Grounding
JSON-LDProfessionalService
Address
Jacksonville, FL
Location
Jacksonville, Florida, United States
Founded
2011
Team Size
51-200 employees
Digital Footprint · Technical Entity Graph
  • Website
  • Schema Type
    ProfessionalService
  • JSON-LD
    Active
  • NAP Vault ID
    Not assigned
  • Social Profiles
    None linked
  • Platform Tenure
    New listing
View Technical Schema
@type
ProfessionalService
areaServed
United States

Knows About

Managed Security ServicesThreat DetectionSecurity Operations

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