List of Graylog Customers
Houston, 77002, TX,
United States
Since 2010, our global team of researchers has been studying Graylog customers around the world, aggregating massive amounts of data points that form the basis of our forecast assumptions and perhaps the rise and fall of certain vendors and their products on a quarterly basis.
Each quarter our research team identifies companies that have purchased Graylog for Security Information and Event Management (SIEM) from public (Press Releases, Customer References, Testimonials, Case Studies and Success Stories) and proprietary sources, including the customer size, industry, location, implementation status, partner involvement, LOB Key Stakeholders and related IT decision-makers contact details.
Companies using Graylog for Security Information and Event Management (SIEM) include: Kaizen Gaming, a Greece based Leisure and Hospitality organisation with 2500 employees and revenues of $1.70 billion, Kennedy Krieger Institute, a United States based Healthcare organisation with 2500 employees and revenues of $343.0 million, Conway Medical Center, a United States based Healthcare organisation with 2000 employees and revenues of $270.0 million, Netassist, a Malaysia based Professional Services organisation with 60 employees and revenues of $7.0 million and many others.
Contact us if you need a completed and verified list of companies using Graylog, including the breakdown by industry (21 Verticals), Geography (Region, Country, State, City), Company Size (Revenue, Employees, Asset) and related IT Decision Makers, Key Stakeholders, business and technology executives responsible for the software purchases.
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| Logo | Customer | Industry | Empl. | Revenue | Country | Vendor | Application | Category | When | SI | Insight |
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Conway Medical Center | Healthcare | 2000 | $270M | United States | Graylog | Graylog | Security Information and Event Management (SIEM) | 2017 | n/a |
In 2017, Conway Medical Center implemented Graylog. Graylog was deployed as a Security Information and Event Management (SIEM) solution for centralized log aggregation, alerting, correlation, search, and dashboarding to support security monitoring and incident triage. The deployment was positioned within IT security and operations for a 2,000 employee regional healthcare environment at Conway Medical Center.
Graylog provided core SIEM capabilities including real time alerting, indexed log storage, query and forensic search, and dashboard visualizations to support daily security operations for endpoints, network access, and Office 365. The platform was operated alongside other monitoring tools such as Solarwinds and Traverse, and help desk staff monitored Graylog alerts and escalated events into IT incident workflows. Graylog also functioned as part of an operational security toolbox that interacted with existing vulnerability management processes leveraging Tenable Nessus, KACE, and WSUS, and supported standardized triage and escalation procedures within the IT and network security teams.
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Kaizen Gaming | Leisure and Hospitality | 2500 | $1.7B | Greece | Graylog | Graylog | Security Information and Event Management (SIEM) | 2025 | n/a |
In 2025, Kaizen Gaming deployed Graylog Enterprise as its Security Information and Event Management (SIEM) platform to modernize observability and platform operations. The implementation targeted SRE teams and high-throughput logging across more than 600 microservices operating in Europe.
Deployment included Graylog Illuminate and Data Lake modules to centralize ingestion, indexing, and long term retention, with configurations tuned for streaming analytics and high volume log processing. Graylog Enterprise was configured to handle sustained ingestion peaks and improve log processing reliability, delivering approximately ten times faster processing and end to end latency under three seconds according to the case study.
The architecture combined the Graylog Enterprise core with Illuminate for enhanced processing pipelines and visualization, and Data Lake for scalable retention and query offload, resulting in operational behavior that sustained 99.95% uptime during traffic peaks. Operational scope emphasized platform operations and SRE workflows, providing centralized logging, alerting, and investigative capabilities across services to streamline incident response and reduce signal noise.
The rollout migrated the environment from Graylog Open to Graylog Enterprise, sequencing module activation to preserve ingestion continuity while expanding Data Lake capacity for long term storage, module usage is specified in the case study. Governance established centralized log access controls and platform ownership by SRE, with a phased cutover across service domains in Europe to maintain availability.
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Kennedy Krieger Institute | Healthcare | 2500 | $343M | United States | Graylog | Graylog | Security Information and Event Management (SIEM) | 2025 | GuidePoint Security |
In 2025, Kennedy Krieger Institute deployed Graylog Cloud on AWS as a cloud-native Security Information and Event Management (SIEM) to strengthen security, compliance, and log retention for healthcare operations in the United States. The implementation was executed with GuidePoint Security as the implementation partner and targeted centralized log ingestion and investigator efficiency across institutional security operations.
Graylog Cloud was configured to provide centralized log aggregation, search and analytics, role-based access, alerting and retention policies aligned with healthcare compliance requirements. The deployment emphasized faster investigator workflows through prebuilt and customized search and alert pipelines, and predictable retention tiers that supported cost control objectives. These functional capabilities align with standard Security Information and Event Management (SIEM) workflows for incident detection, correlation and forensic analysis.
Architecturally the solution used a cloud-native service model on AWS, shifting storage and processing to the Graylog Cloud environment to simplify onboarding and operational management for a lean security team. Operational scope concentrated on security operations and compliance functions across the United States healthcare footprint of the institute. The source case study explicitly references Graylog Cloud and GuidePoint Security, and no other system integrations were specified.
Governance and rollout were coordinated with GuidePoint Security and focused on policy-driven retention, investigator training, and streamlined alert routing into existing incident handling workflows. Outcomes called out in the case study include faster investigator workflows, predictable retention and cost control, and quicker onboarding for Kennedy Krieger Institute's lean security team. The Kennedy Krieger Institute Graylog Security Information and Event Management (SIEM) deployment links the company, the Graylog application, and the Security Information and Event Management (SIEM) category to centralized security logging and compliance business functions.
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Professional Services | 60 | $7M | Malaysia | Graylog | Graylog | Security Information and Event Management (SIEM) | 2025 | n/a |
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