Penetration Testing & Managed SOC.
Under one roof.
Most security firms are either pen testers or SOC providers. Precursor is both. We combine CREST-accredited penetration testing with a 24/7 UK-based SOC, feeding live threat intelligence directly into every engagement. Your defences are tested against what adversaries are doing today. Not last year's playbook.
Precursor Security is a CREST-accredited UK cyber security firm delivering penetration testing, 24/7 managed SOC, and compliance services from a single integrated platform.
CREST accreditation is the UK Government and NCSC recommended benchmark for cyber security providers. Fewer than 70 firms hold both Penetration Testing and SOC accreditation. Precursor Security holds triple CREST accreditation: Penetration Testing, Vulnerability Assessment, and SOC. That makes us one of a handful of firms in the UK that can credibly deliver both sides of the security equation.
What that means for your purchase order: our consultants are individually assessed and certified by CREST, not just the organisation. You are buying tested expertise, not a brand.
Penetration Testing. SOC. Compliance.
Most firms do one. We do all three, at CREST-accredited level, so your offensive findings, defensive detections, and compliance evidence feed into a single closed-loop.
CREST Penetration Testing
Network, web application, cloud, mobile, and API penetration testing by individually CREST-certified consultants. Fixed pricing from £2,500. Manual testing, not just automated scans dressed up as pen tests.
24/7 Managed SOC & MDR
UK-based Security Operations Centre with eyes on glass 24/7/365. No offshoring. Human analyst triage on every confirmed threat. Integrates with your existing Microsoft Sentinel, CrowdStrike, or Defender XDR.
Compliance & Certification
ISO 27001 consultancy, Cyber Essentials certification, PCI DSS, GDPR, and CSRB 2025 readiness. Every pen test finding and SOC alert maps directly to your regulatory controls.
Trusted by organisations across healthcare, financial services, government, legal, education, and retail sectors.
Trusted across regulated UK sectors
15 Minutes.
Alert to Action.
Cyber threats don't stick to office hours. Our 100% UK-based SOC provides 'Eyes on Glass' monitoring 24/7/365. Your data never leaves the island. We detect, triage, and contain threats while your team sleeps. Managed SOC from £900/month.
Optimized Integration
We find the vulnerabilities
before attackers do.
Our CREST-accredited consultants don't just run scanners. They replicate the same techniques used by real-world threat actors, informed by live intelligence from our 24/7 SOC. You get a clear, prioritised report with exact remediation steps, not a 200-page PDF of automated findings. Pen testing from £2,500. Fixed pricing. Retest included.
- Find what automated scanners miss
- Reports your board can actually read
- Free retest to confirm the fix worked
Audit Ready.
Every Single Day.
Stop scrambling before an audit. Every pen test finding and SOC alert can be directly linked to your regulatory controls: ISO 27001, GDPR, PCI DSS, and the new CSRB 2025 requirements. Cyber Essentials certification from £1,500. ISO 27001 gap analysis from £3,000.
Physical & Logical Security
The Precursor Advantage.
Experience our dedicated UK infrastructure and closed-loop offensive integration.
See the SOC.
Visit our analyst floor in Newcastle. See the screens, meet the team, and watch a live threat hunt in progress. We run tours for procurement teams, CISOs, and board members. No sales pitch. Just evidence.
The Closed-Loop Advantage.
Our penetration testers use live SOC threat intelligence to test your defenses against active attack patterns. This continuous loop between offensive and defensive operations means your security posture strengthens every single day.
One Pane of
Glass.
Red Team finds it. Blue Team blocks it. You track it all through our SOC Portal and Penetration Test Portal in real-time. No more fragmented security silos.
Real-time exfiltration attempts and identified gaps.
24/7 SOC verification and remediation status.
Latest Analysis
You need to know if your defences hold.
Book a free 30-minute scoping call. We identify which assessments apply to your environment, confirm scope in writing, and provide a fixed-price quote. No obligation. No day-rate surprises.
Frequently Asked Questions
Common questions about Precursor Security and our services.