Managed SIEM | 24/7 Expert Monitoring

Expert SIEM management without the overhead of hiring security analysts

A managed SIEM give your organisation access to experienced security analysts around the clock, without the cost and complexity of hiring and retaining specialist staff in-house.

Your SIEM should be your security team’s most powerful tool. In practice, most organisations find it generates more noise than insight, because effective SIEM management requires expertise that is expensive to source and difficult to keep. Razorthorn’s Managed SIEM service puts vendor certified analysts at your fingertips, handling the monitoring, tuning and alert triage so your internal teams only deal with genuine threats.

Whether you are implementing a new SIEM or struggling to get value from an existing deployment, we integrate with your environment and get to work quickly.

What you get:

24/7 SIEM monitoring by experienced security analysts
Intelligent alert filtering – only actionable threats reach your team
Expert tuning and optimisation to reduce false positives
Regular reporting with clear recommendations and remediation advice
Vendor-agnostic support for all major SIEM platforms

We help organisations maximise their SIEM investment whilst eliminating alert fatigue and ensuring no genuine threats slip through unnoticed.

Get Started with Managed SIEM

Transform your SIEM from a source of alert fatigue into an effective security operations platform. Speak with our team to discuss your SIEM challenges and requirements.

What’s Included in the Service

Our vendor certified SIEM analysts work as an extension of your team, monitoring your environment around the clock, tuning alerts to reduce noise and providing expert analysis of genuine security incidents. Whether you are implementing a new SIEM or need to optimise an existing deployment, we provide the specialist knowledge required without the significant overhead of hiring dedicated SIEM analysts in-house.

24/7 SIEM Monitoring & Analysis

Round-the-clock monitoring of your SIEM alerts by experienced security analysts
Real-time threat detection and incident alerting
Expert analysis to distinguish genuine threats from false positives
Immediate escalation of critical security incidents
Correlation of events across your entire IT infrastructure
Regular pattern analysis to identify emerging threats

SIEM Tuning & Optimisation

Initial SIEM configuration and deployment (for new implementations)
Ongoing tuning to reduce alert noise and false positives
Custom rule creation for your specific environment
Use case development tailored to your industry and threats
Integration with existing security tools and workflows
Quarterly optimisation reviews to maintain effectiveness

Expert Analyst Team

Vendor-certified SIEM analysts with expertise across all major platforms
Experience with Splunk, QRadar, LogRhythm, ArcSight, Sentinel and more
Dedicated analyst assigned to your account
Clear escalation procedures for critical incidents
Regular communication and incident briefings
Quarterly strategic reviews

Reporting & Compliance Support

Daily executive summaries of security events
Weekly detailed analysis reports
Monthly trend analysis and threat intelligence
Compliance reporting for frameworks including ISO 27001, PCI DSS, GDPR, NIS2
Evidence collection for audit requirements
Clear remediation recommendations with prioritisation

How Our Managed SIEM Service Works

1. Onboarding and Integration

We start by understanding your environment, your existing SIEM configuration and your specific security requirements. Our analysts integrate with your platform, whether that is Splunk, Microsoft Sentinel, QRadar, LogRhythm, ArcSight or another major SIEM, and establish the baseline needed to distinguish normal activity from genuine threats in your specific environment.

2. Initial Tuning and Optimisation

Before full monitoring begins, we review your existing rules, alerts and use cases. We reduce false positive rates, create custom detection rules relevant to your industry and threat profile and ensure your SIEM is configured to surface the incidents that actually matter.

3. 24/7 Monitoring and Analysis

Our analysts monitor your SIEM continuously, investigating alerts, correlating events across your infrastructure and escalating genuine security incidents with clear context and recommended actions. You receive only the alerts that require your attention, not everything the system generates.

4. Incident Response Support

When a genuine security incident is identified, we provide immediate escalation with full context covering what happened, which systems are affected and what we recommend you do next. For organisations that need it, we can provide hands-on incident response support alongside your internal team.

5. Ongoing Optimisation and Reporting

Security environments change constantly. We conduct quarterly optimisation reviews to keep your SIEM tuned to your current environment, threat profile and compliance requirements. You receive daily executive summaries, weekly analysis reports and monthly trend analysis, giving your leadership team clear visibility of your security posture without needing to interpret raw SIEM data.

Why Organisations Choose Our Managed SIEM Service

Eliminate Alert Fatigue

Tired of your security team drowning in SIEM alerts? Our analysts filter thousands of events daily, investigating potential threats and only escalating genuine security incidents that require action. We’ve helped clients reduce their daily alert volume from hundreds to a manageable handful of real threats.

Maximise Your SIEM Investment

Many organisations invest £50k+ in SIEM technology only to use 20% of its capabilities due to lack of expertise. Our team ensures you’re getting full value from your investment through expert tuning, custom use case development and continuous optimisation.

Access Specialist Expertise Without the Hire

Hiring and retaining skilled SIEM analysts is expensive and challenging. The average SIEM analyst salary in the UK is £50k-£70k, plus training costs and the risk of staff turnover. Our managed service gives you access to a team of specialists for a fraction of that cost.

Accelerate Time to Value

New SIEM deployments typically take 6-12 months to reach optimal performance. With our experts handling configuration, tuning and optimisation from day one, you’ll see actionable security intelligence within weeks, not months.

Common SIEM Challenges We Solve

“Our SIEM generates too many alerts”
We tune your rules and create custom use cases to dramatically reduce false positives whilst ensuring genuine threats are detected.

“We don’t have enough analysts to monitor 24/7”
Our team provides round-the-clock coverage so you never miss a critical security event.

“We’re not getting value from our SIEM investment”
Through expert optimisation and use case development, we unlock the full potential of your SIEM technology.

“Our team suffers from alert fatigue”
We filter the noise, investigating thousands of alerts so your team only deals with genuine security incidents.

“We need better compliance reporting”
Our service includes tailored reporting for your specific compliance requirements with evidence ready for audits.

Frequently Asked Questions about Managed SIEM Services

What is a managed SIEM service?

A managed SIEM service means an external team of security analysts monitors and manages your Security Information and Event Management system on your behalf. Rather than hiring specialist SIEM analysts in-house, you access that expertise through a managed service that integrates with your existing environment and operates around the clock.

Which SIEM platforms does Razorthorn support?

We support all major SIEM platforms including Splunk, Microsoft Sentinel, IBM QRadar, LogRhythm and ArcSight. Our analysts are vendor-certified across multiple platforms, so we work with whatever SIEM you already have in place rather than requiring you to change platforms.

How quickly can Razorthorn start monitoring our SIEM?

Most organisations are fully onboarded within two to four weeks. We begin with an initial assessment and tuning phase to understand your environment before full monitoring begins, ensuring we are configured to detect genuine threats in your specific infrastructure from day one.

How does managed SIEM support compliance requirements?

Our managed SIEM service includes compliance reporting for frameworks including ISO 27001, PCI DSS, GDPR and NIS2. We collect and format the evidence your auditors need, reducing the time your team spends preparing for compliance reviews and ensuring your SIEM data supports your regulatory obligations.

What is the difference between managed SIEM and a SOC?

A Security Operations Centre covers threat detection, incident response and security monitoring across multiple tools and data sources. A managed SIEM service focuses specifically on managing and monitoring your SIEM platform. Razorthorn’s managed SIEM service includes the core monitoring and response functions that many organisations associate with a SOC, without the overhead of building a full SOC internally.

How much does a managed SIEM service cost?

Pricing depends on the size of your environment, the volume of log data and the level of service required. As a guide, our managed SIEM service typically costs significantly less than hiring even a single dedicated SIEM analyst, when you factor in recruitment, training and the ongoing risk of staff turnover in a skills-short markets.