Antietam Technologies
MSSP / managedVulnerability analysis, security monitoring, and incident response.
Frederick, US· 2–9 employees (reported) people
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D&O Security Solutions LLC
Consultancy / pentestOffensive and defensive cybersecurity services and IT program management.
Stafford, US· 2–9 employees (reported) people
Isec International, Inc
Consultancy / pentestPenetration testing, incident response, digital forensics, and compliance advisory.
Miami, US· 2–9 employees (reported) people
HCP Consulting Services, L.P.
Consultancy / pentestCybersecurity readiness, security operations support, and secure IT implementation.
San Antonio, US· 2–9 employees (reported) people
Etopia Technologies
MSSP / managedBusiness cybersecurity, backup protection, and managed IT support.
Omaha, US· 2–9 employees (reported) people
Webfargo Data Security
MSSP / managedManaged cybersecurity, security audits, and security consulting.
Durham, US· 2–9 employees (reported) people
CortecG Inc
MSSP / managedBusiness cybersecurity, data protection, and managed IT support.
Dickinson, US· 2–9 employees (reported) people
Tek Dragons
Consultancy / pentestCybersecurity management, engineering, and consulting.
Camp Hill, US· 2–9 employees (reported) people
CyberGhost Security, LLC
MSSP / managedPenetration testing, threat monitoring, and compliance readiness support.
Yorkville, US· 2–9 employees (reported) people
Scinary Cybersecurity
MSSP / managedManaged cybersecurity and compliance support for educational organizations.
Waco, US· 2–9 employees (reported) people
Snowfensive
Consultancy / pentestPenetration testing, social engineering assessment, and incident response.
South Jordan, US· 2–9 employees (reported) people
Security Vitals
Consultancy / pentestCompliance program management, security assessments, and incident response support.
Village of Clarkston, US· 2–9 employees (reported) people
Blumira
Product vendorCloud SIEM and threat detection for smaller security teams.
Ann Arbor, US
Sequretek
Product vendorEndpoint protection and managed detection services.
Little Rock, US
SilverSky
MSSP / managedManaged detection and response for organizations.
Fort Lauderdale, US
SANS Institute
TrainingCybersecurity training, certifications, and research.
Bethesda, US· 500-999 people
Palo Alto Networks
Product vendorNetwork, cloud, and SOC platform spanning firewalls to Prisma Cloud.
Santa Clara, US· 1000+ people
SentinelOne
Product vendorAutonomous EDR and XDR for endpoints, identity, and cloud workloads.
Mountain View, US· 1000+ people
Arctic Wolf
MSSP / managedManaged detection and response as a subscription.
Eden Prairie, US· 1000+ people
Rapid7
Product vendorSIEM, vulnerability management, and detection from InsightVM and InsightIDR.
Boston, US· 1000+ people
Bishop Fox
Consultancy / pentestOffensive security consultancy and Cosmos continuous pentest.
Phoenix, US· 250-499 people
Microsoft Security
Product vendorDefender, Entra, Sentinel, and Purview across the Microsoft estate.
Redmond, US· 1000+ people
Splunk
Product vendorSIEM, observability, and security analytics now under Cisco.
San Francisco, US· 1000+ people
Mandiant
Consultancy / pentestIncident response, threat intel, and Mandiant Advantage — now Google Cloud.
Reston, US· 1000+ people