Your security team should focus on threats, not keeping the SIEM running. Apto fills the platform management gap so your analysts can do what they do best.
The Problem: Who Runs Your SIEM Platform?
Every organisation with a SIEM platform has the same three roles in play. The challenge is that most only have two of them covered.
The Platform Management Gap – Security Lens
Users
Users are your SOC analysts, threat hunters, and incident responders. They rely on the SIEM for alerts, dashboards, and investigations. They need the platform to work, but running it is not their job.
Builders
Builders are your security engineers and detection developers. They create correlation rules, design detections, and build integrations. They make the SIEM smarter, but they are not responsible for keeping it healthy day to day.
Operators
These are the missing role. Someone needs to monitor platform health, manage upgrades, tune performance, control licence costs, plan capacity, and ensure the SIEM is reliable around the clock. In most organisations, this work falls on an already-stretched security team, or worse, nobody at all.
This is the Operator gap.
It is the reason SIEM platforms degrade over time, costs spiral, and security teams spend more time fighting their tools than fighting threats.
How Apto Solves It
Apto exists to fill the Operator gap. We take ownership of the platform management layer so your security team can focus entirely on security outcomes. We do not replace your analysts or your engineers. We run the platform underneath them.
Our approach follows a structured lifecycle that ensures every engagement starts with understanding and ends with continuous improvement:
The Assess > Build > Operate Lifecycle – SIEM
Assess
Every engagement begins with a thorough assessment of your current SIEM environment. We evaluate platform health, detection coverage, data source quality, licence utilisation, and operational maturity. The output is a clear picture of where you are today and a prioritised roadmap for improvement.
Build
Based on the assessment findings, we architect and implement improvements. This might mean redesigning your data onboarding, building new detection content, optimising your search performance, or restructuring your deployment architecture. We build to operate, meaning every design decision considers long-term manageability.
Operate
This is where Apto’s core value lives. We take ongoing responsibility for platform health, performance, capacity, upgrades, and licence management. Our team monitors your SIEM environment proactively, resolving issues before they impact your security operations.
The Operate + Build Virtuous Cycle
What makes the Apto model different from a one-off consulting engagement is the feedback loop between Operate and Build. When we run your platform day to day, we see things that project-based consultants never will: emerging performance patterns, detection gaps exposed by real-world data, and optimisation opportunities that only surface over time.
This means your SIEM does not just stay where it is. It gets better every month. Operations insight feeds directly into platform improvements, and those improvements make operations more efficient. The result is a platform that continuously evolves to match your changing threat landscape and business requirements.
Engagement Models
We understand that every organisation has different requirements, team sizes, and maturity levels. Apto offers flexible engagement models that range from fully managed to co-managed, adapting to how much responsibility your team wants to retain.
Fully Managed
Apto takes complete ownership of the SIEM platform operations. Your team focuses entirely on security outcomes while we handle everything from platform health to upgrade planning. Best suited for organisations without dedicated platform engineering resource.
Co-Managed
Your team retains ownership of security operations and policy decisions, while Apto manages the platform layer underneath. We work together through shared change advisory processes, service reviews and a joint detection roadmap. Best suited for organisations with some internal capability who need specialist platform support.
Build and Transition
Apto assesses and builds your platform to best-practice standards, then transitions operational knowledge to your team with documented runbooks and training. Best suited for organisations building internal platform capability who need expert guidance to get started.
Platform Expertise
Apto is vendor-neutral by design. We work across the major SIEM platforms and help clients choose, migrate, or optimise based on their specific needs rather than our commercial partnerships.
Read more about Splunk and Sentinel →
What Is Included in Managed SIEM
Every Apto Managed SIEM engagement includes a comprehensive set of platform management activities, tailored to your specific platform and environment.
Case Study: SIEM Transformation in Financial Services
The Challenge
A UK financial services firm had invested significantly in Splunk Enterprise Security but was seeing diminishing returns. Alert volumes were overwhelming the SOC, detection rules had not been updated in over 18 months, and licence costs were climbing due to uncontrolled data ingestion. The security team was spending more time managing the platform than responding to threats.
The Approach
Apto conducted a full SIEM maturity assessment, mapping data sources, reviewing detection coverage against the MITRE ATT&CK framework, and analysing ingestion patterns. We identified significant data duplication and several high-volume, low-value data sources driving licence costs. The Build phase focused on detection engineering, data pipeline optimisation using Cribl, and a new operational runbook. Apto then transitioned into an ongoing Operate engagement.
The Outcome
Within 6 months: 40% reduction in data ingestion volume through pipeline optimisation, 65% reduction in false positive alerts, detection coverage increased from 35% to 78% of relevant MITRE ATT&CK techniques, and the SOC team reclaimed over 20 hours per week previously spent on platform management tasks.
See how we can build your digital capability,
call us on +44(0)845 226 3351 or send us an email…