Tailored Security
for Modern Threats
Years of red and blue team experience across sectors, distilled into three managed security services. Detection informed by attack. Compliance shaped by real-world risk.
We attack. We defend.
We do both for you.
TSO was founded by security professionals who spent years on both sides of the fence. We saw too many organisations juggling vendors — one for pen testing, another for monitoring, another for compliance. None of them sharing intelligence. We built TSO to deliver managed security services where red team knowledge directly strengthens your defences. One partner. Three service lines. No fragmentation.
Red Team DNA
Every service we deliver is shaped by years of offensive operations. Our detection rules, our compliance advice, our testing — all of it is informed by real attack experience across sectors.
Fully Managed
We are not box movers. We do not resell licences and walk away. Every engagement is a retainer-based partnership where we own outcomes and deliver results, not just reports.
Cross-Sector Experience
From financial services to critical infrastructure, our team has operated across industries. That breadth means better threat intelligence, sharper detection, and compliance guidance that fits your sector.
Three managed service lines.
One security partner.
Managed Detection & Response
24/7 Security Monitoring
Continuous monitoring of your environment by analysts who understand attacker tradecraft. Our detection engineering is built on real red team experience, not just vendor signatures.
Threat Hunting
Proactive hunts for threats that automated rules miss. Our hunters know where to look because they have been the ones hiding in those same blind spots during offensive engagements.
Incident Response
When something goes wrong, our team contains the threat, investigates the root cause, and guides recovery. Incident response is included by default, not bolted on as an extra.
Managed Attack & Prevent
Continuous Penetration Testing
Not a one-off assessment that gathers dust. Your infrastructure, applications, and cloud environments are tested on a continuous retainer basis throughout the year.
Red Teaming
Full-scope adversary simulations that test your people, processes, and technology. Our red team engagements are built into the retainer so you get regular, realistic attack scenarios.
Remediation Services
We do not just hand you a report and disappear. Remediation guidance and hands-on support are included in the retainer, so vulnerabilities get fixed, not just documented.
Managed Compliance & Strategy
GDPR, ISO 27001 & NIS2
Regulatory compliance handled as a managed service. We keep track of what your organisation needs, maintain your documentation, and prepare you for audits on a continuous basis.
Security Programme Development
From policies and procedures to risk registers and security roadmaps. We help you build and maintain a security programme that fits your organisation, not a shelf.
Risk & Strategy Advisory
Strategic security guidance rooted in operational reality. Risk assessments, board-level reporting, and security strategy that is shaped by what we see in the field, not just frameworks.
Ready to stop juggling security vendors?
One partner for detection, testing, compliance, and everything in between. Let's talk about what managed security looks like for your organisation.
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Whether you need managed detection, continuous testing, or compliance support — we are here to listen.