Market leaders trust us

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yayPay
betssongroup
RemotePass
helpware
enersponse
matrix42
Volkswagen
accedian
CohnReznick
avenga
invicti
shelf
materialise
rydoo
skelar

When teams look for Managed SIEM services

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SIEM renewal is coming up
Before you re-sign, we assess your current setup so you are not locked into cost or scope you do not need.
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Ingestion costs are climbing
Sending every log inflates the bill. We filter noise at ingestion so budget goes to security-relevant data.
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An audit needs SIEM coverage
SOC 2, ISO 27001, PCI DSS or DORA require logging and monitoring you can evidence.
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You outgrew DIY SIEM
Keeping detection current is a full-time job. We run it so your team does not have to.

Our customers say it best

Named as a high Perfomer Incident Response System Security by G2 Crowd
4.8
“Not having to worry about ransomware, alert overload and reporting. Getting a clear view of my security posture, where the threats are coming from and how they are handled. They literally took care of all our problems.”
Managed Detection and Response (MDR)
4.9
“Holistic approach, exceeding requirements with added value and cost savings; smooth transition to Crowdstrike EDR and Elastic SIEM implementation; flexibility with a 120-hour incident response retainer, surpassing the standard 40 hours.”
Named as a Top Cybersecurity Company 2025 by Clutch
5.0
“UnderDefense impressed us with their ability to tailor their services to our unique needs and challenges. They didn't simply provide a one-size-fits-all solution, but instead took the time to understand our specific environment and requirements.”

Awards & Certifications

Managing SIEM since 2016, vendor-agnostic across Splunk, Microsoft Sentinel, QRadar and Elastic. Platform-certified engineers on every deployment, backed by a 24/7 AI-augmented SOC.
top clutch.co penetration testing 2025
top clutch.co cloud security company 2025
top clutch.co application security company 2025
Managed Detection and Response (MDR) Momentum Leader
System Security Best Support Quality Of Support
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top clutch.co penetration testing 2025
top clutch.co cloud security company 2025
top clutch.co application security company 2025
Managed Detection and Response (MDR) Momentum Leader
System Security Best Support Quality Of Support
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certificate 3
certificate 4
certificate 5
top clutch.co penetration testing 2025
top clutch.co cloud security company 2025

Where we make the difference

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Data ingestion bloat cost
Sending every log to your SIEM drains your budget. We filter out the noise and keep only security-relevant events, so you can either expand coverage or slash data costs.
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Up-to-date SIEM detection logic
Cyber threats evolve daily, but static rules miss them. We continuously update and fine-tune your SIEM detection logic to catch modern, sophisticated attacks.
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Blind spots in telemetry
Missing critical log sources leaves gaps in your defense. We ensure the right data fields are parsed and visualized, giving you comprehensive visibility without paying for useless logs.
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Log source friction loss
Connecting new tools to a SIEM often breaks parsing and rules. We manage log ingestion end-to-end, onboarding new data sources smoothly without disrupting your security monitoring.

SIEM renewal coming up?
We assess your current setup before you sign anything.

1
Managed SIEM Architecture & Health Assessment

We audit your current SIEM or design from scratch — mapping log requirements and visibility gaps.

2
Deployment & Precision Tuning

We connect log sources, filter noise, and cut false positives — without disrupting your team.

3
Ongoing Management & Continuous Improvement

We monitor, tune, and evolve your SIEM ongoing — updating detection logic and providing monthly reports.

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What you get

  • Optimized ingestion with measurable cost reduction
  • Tuned detection rules mapped to current threats
  • Onboarded and correctly parsed log sources
  • Dashboards for real-time visibility
  • Monthly reports on coverage and detection changes
  • Detection logic kept current, not set and forgotten

FAQ

What is SIEM as a managed service?

Managed SIEM-as-a-service is a more cost-effective alternative to in-house, on-prem installation, setup, and maintenance of a security information and event management solution. In this case, an organization delegates software deployment, fine-tuning, and ongoing support to a third-party provider.

By engaging SIEM managed service providers, organizations gain access to experienced personnel, save expensive internal resources, accelerate time-to-value, and avoid unnecessary staff training and professional development costs.

What does co managed SIEM mean?

A co-managed SIEM solution means a collaboration between an organization and a managed provider. Such an approach combines and augments the strengths of both parties by allowing them to share the responsibility, experience, and knowledge. The client and the managed cloud SIEM solution provider can create a scalable and effective solution that maximizes security risk monitoring, threat detection, and response capabilities amid the ever-evolving threat landscape.

What does UnderDefense as a managed SIEM provider offer?

UnderDefense offers a full range of security services and cooperation models that easily adapt to your needs, goals, and budgets. We can cover the entire SIEM-as-a-service process, from software selection, installation, setup, and maintenance to 24/7 remote SOC team and custom reporting. Finally, we are a product-agnostic SIEM as-a-service provider, meaning that you can choose security tech, and we’ll make it work better for your business.

How much do SIEM management services cost?

Managed SIEM services typically cost between $50 and $140 per hour, depending on your specific environment and needs. Key factors influencing cost include the number of service hours required, whether you already have a SIEM tool in place, the complexity of your security stack, and any additional integration or support fees. Contact us today for a detailed quote based on your specific needs and goals.

What data will you access and see in my environment as a SIEM managed security service provider?

We take into account client’s requirements, compliance controls, and other business specifics. That’s why, as a managed SIEM monitoring services company, we leverage only telemetry and incident metadata. We don’t have access to PII and other sensitive data unless the client requests it.

What solutions do managed SIEM providers recommend?

Most SIEM as a service providers require companies to buy and install a concrete tech stack to start using their offerings. UnderDefense is a vendor-agnostic SIEM monitoring service provider. We seamlessly integrate into your existing stack and help you make the most of your security investments in the short run.