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About Musketeers Security

Our Pedigree.
Your Peace
of Mind.

Lean, agile cybersecurity delivered by world-class certified specialists — combining strategic governance expertise, deep technical capability and hands-on global incident response experience.

1,000s
Incidents responded to globally across every major sector and attack type
24/7
On-call emergency response — every day of the year, no exceptions
8+
Major regulatory frameworks supported — NIS2, DORA, ISO 27001 and beyond
SC/DV
Security-cleared consultants for government and CNI environments
Lloyd's
Approved partner of a leading Lloyd's of London cyber insurance broker
CISSP
CISSP, CISM, GCIH, OSCP, CCSP, GPEN — certified across every discipline
"All for Security and Security for All — expert advice, no enterprise overhead, no vendor agenda."
Who We Are

Built to deliver enterprise-grade security without enterprise overhead.

Musketeers Security is a lean, agile UK cybersecurity consultancy delivering expert advice and hands-on capability across the full security lifecycle — from the moment a ransomware attack begins, to the long-term governance programme that prevents the next one.

Our services are delivered by world-class specialist professionals who bring deep expertise across incident response, cyber governance and risk, technical security, managed detection and response, cloud architecture and AI automation. Every engagement is led by senior certified practitioners — not managed by account teams and delivered by graduates.

"The difference between organisations that survive a cyber incident and those that don't is almost always preparation. Our job is to make sure you are never the unprepared one."

We have no commercial relationship with any platform vendor, tool provider or compliance framework body. Every recommendation we make is based solely on what is right for your organisation.

  • Credentials that matter under pressureOur consultants hold CISSP, CISM, OSCP, GPEN, GCIH, GCFA, CCSP and AWS/Azure/GCP security certifications — the qualifications that count when an attacker is active in your network.
  • Real-world incident response experienceThousands of incidents responded to across multiple continents. That forensic knowledge informs every risk assessment, every control design and every piece of advice we give.
  • Independently verified standardsNCSC CHECK, CREST accreditation, Crown Commercial Service supplier, FCA-regulated, Lloyd's approved — every accreditation is externally verified proof of the standard we operate at.
  • Truly independent adviceNo commercial relationships with platform vendors, tool providers or framework bodies. We sit on your side of the table, always.
  • Government-cleared capabilitySC and DV cleared consultants available for sensitive government, defence and critical national infrastructure projects where standard commercial providers cannot be deployed.
Areas of Specialism

Six disciplines. One integrated security capability.

Our services span the full security lifecycle — from immediate incident response through to long-term governance, technical architecture, managed detection and specialist intelligence services.

24/7 Response

Incident Response & Cyber Insurance

Rapid deployment of certified responders for ransomware, BEC, data breaches and cloud compromise — backed by three simple retainer tiers and Lloyd's cyber insurance brokerage.

  • Ransomware response and recovery
  • Business email compromise forensics
  • Digital forensics and evidence chain
  • Cyber insurance advisory and claims support
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GRC

Cyber & AI GRC

Bespoke governance, risk and compliance — quantified risk assessments, vCISO, NIS2, ISO 27001, DORA, PCI-DSS, cyber due diligence and M&A advisory. Independent. No vendor agenda.

  • Quantified cyber risk assessments
  • Virtual CISO (vCISO) service
  • NIS2, DORA, ISO 27001, PCI-DSS
  • M&A cyber due diligence
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Offensive & Defensive

Technical Information Security

Penetration testing, red teaming, vulnerability assessment and security architecture review — NCSC CHECK and CREST accredited. We find the weaknesses before an attacker does.

  • NCSC CHECK penetration testing
  • CREST accredited red team operations
  • Web, API and mobile application testing
  • Security architecture review
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AI-Enhanced

Managed Security Services

AI-enhanced SOC, MXDR, Microsoft 365 security and DLP — delivered through our leading MSSP partnership with fully independent advisory. 24/7 detection, no vendor lock-in.

  • AI-enhanced SOC with 24/7 monitoring
  • MXDR — endpoint, cloud, identity, email
  • Microsoft 365 security management
  • Data loss prevention (DLP)
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Bespoke

Cloud, Identity, DevSecOps & AI

Bespoke cloud security architecture, zero trust identity design, DevSecOps pipeline integration and AI automation — built for your environment. Delivered with our cloud engineering partner.

  • Cloud security architecture (any platform)
  • Zero Trust and identity design
  • DevSecOps pipeline security
  • AI automation and governance
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TPRM & M&A

Third-Party Risk & Cyber Due Diligence

Real-time AI-powered vendor ecosystem monitoring, M&A cyber due diligence and financial risk quantification — continuous supply chain visibility that point-in-time assessments miss.

  • Continuous vendor risk monitoring
  • Ransomware susceptibility index
  • 4th & 5th-party supply chain visibility
  • M&A pre-deal cyber intelligence
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Accreditations & Certifications

Independently verified. Nationally recognised. Globally trusted.

Every accreditation below is externally verified proof that our group of companies operates at the highest standards in the industry. These are not just credentials — they are the benchmarks by which we hold ourselves accountable.

UK Government & National Cyber Security
NCSC CHECK
NCSC CHECK Penetration Testing
Approved supplier for government and CNI penetration testing engagements requiring the highest assurance level.
Crown Commercial Service
Crown Commercial Service Supplier
Approved supplier to UK public sector organisations through the Crown Commercial Service framework.
NCSC
NCSC Cyber Incident Response
Recognised incident response capability for government environments at the highest classification levels.
SC / DV
SC & DV Security Clearance
Developed Vetting and Security Check cleared consultants available for sensitive and classified engagements.
Attack Simulation & Offensive Security
CREST
CREST Accredited
CREST accreditation for penetration testing, threat intelligence and incident response — the gold standard for technical security.
OSCP
OSCP — OffSec Certified Professional
Hands-on penetration testing certification from OffSec — the definitive practical offensive security qualification.
GIAC
GIAC GPEN / GCIH / GCFA
SANS-certified penetration testing (GPEN), incident handling (GCIH) and forensic analysis (GCFA) across the team.
CISSP
CISSP & CISM
ISC² CISSP and ISACA CISM — the gold-standard senior security management certifications held across the leadership team.
Compliance, Standards & Certification
CE / CE+
Cyber Essentials & CE Plus
IASME approved certification body for Cyber Essentials and Cyber Essentials Plus assessments.
ISO 9001
ISO 9001
Quality management system certified — demonstrating consistent, high-quality service delivery across all engagements.
ISO 27001
ISO 27001 Aligned
Information security management system aligned — holding our own organisation to the same standard we advise clients on.
PCI QSA
PCI DSS Qualified Security Assessor
QSA-qualified for PCI DSS assessments — supporting organisations handling, storing or transmitting payment card data.
CIPP/E
CIPP/E & CDPSE
IAPP-certified data privacy (CIPP/E) and ISACA data privacy solutions engineer (CDPSE) — covering GDPR and international privacy obligations.
MISA
Microsoft Intelligent Security Association
Nomination-only Microsoft security partner ecosystem — recognised for expertise across the Microsoft Security stack.
Cloud & Platform Security
AZ-500
Azure Security Engineer Associate
Microsoft AZ-500 certified — Entra ID, Sentinel, Defender, Key Vault and Azure security architecture.
CCSP
CCSP — ISC²
Vendor-neutral cloud security architecture certification — covering all major platforms and cloud security design principles.
AWS
AWS Certified Security — Specialty
Amazon Web Services security specialist certification covering IAM, GuardDuty, Security Hub and AWS threat detection.
CKS
CKS — Kubernetes Security Specialist
CNCF certified Kubernetes security specialist — container and DevSecOps security across cloud-native environments.
Financial & Insurance Regulation
FCA
FCA Regulated
Financial Conduct Authority authorised insurance broker — regulated for the placement of cyber insurance products.
Lloyd's
Lloyd's of London Approved Partner
Approved partner of a leading Lloyd's of London broker — specialist cyber risk placement in the world's most sophisticated insurance market.
CHAS
CHAS Accredited
Contractor Health & Safety Assessment Scheme accreditation for regulated sector and public sector procurement.
SafeContractor
Alcumus SafeContractor
Verified contractor compliance and safety standards — supporting procurement across regulated and public sector clients.
Our Pedigree

Delivered by world-class specialists. Accountable to you.

Musketeers Security brings together a carefully selected group of specialist practitioners and partner organisations — each holding deep expertise in their domain, each operating at the highest level of certification and accreditation available in their field.

We are lean by design. Unlike large consultancies where senior partners win the work and junior teams deliver it, every Musketeers Security engagement is led and delivered by the senior certified professionals your organisation needs. No handoffs. No surprises.

Our partnership model means we can draw on specialist cloud engineers, offensive security specialists, data privacy experts, forensic analysts and insurance brokers as a single accountable team — with Musketeers Security as the single point of accountability for everything we deliver.

Company
Musketeers Security Ltd
Company No. 16892937
Registered in England & Wales
Location
Sales: Cheapside, London EC2V 6AZ
Registered: 44 Grand Parade, Brighton BN2 9QA

Strategic Partners

Our delivery capability is strengthened by strategic partnerships with specialist organisations — each selected for their domain expertise and the quality standards they operate to.

  • Cloud & DevSecOps EngineeringSpecialist Azure architects and DevOps engineers — delivering cloud security architecture and DevSecOps solutions in partnership with our security consultants as one integrated team.
  • Lloyd's Cyber Insurance BrokerageApproved partner of a leading Lloyd's of London broker — providing cyber insurance advisory, risk assessment and claims support aligned to what underwriters actually need.
  • AI-Powered TPRM & Intelligence PlatformLeading enterprise TPRM and DLP provider delivering real-time vendor risk intelligence, dark web monitoring and financial risk quantification across supply chains.
  • Enterprise MSSP & DLPPartnership with a leading enterprise MSSP and DLP provider — giving clients access to institutional-grade SOC infrastructure, SIEM, SOAR and threat intelligence, with Musketeers Security remaining fully independent in its advice.
Get in Touch

Speak to our team today.

Every engagement starts with a conversation — no generic sales deck, no obligation. Just an honest assessment of how we can help.

Active incident? Call our emergency line immediately:  (+44) 20 3951 4401

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