--- title: Cyber Security Services | Layered Resilience for Enterprises | CSA Cyber description: Partner with CSA Cyber for comprehensive, accredited cyber security services that enhance resilience, ensure compliance, and protect your organisation against evolving threats. image: https://csacyber.com/hubfs/csa-cyber-news.jpg --- [Skip to content](https://csacyber.com#main-content) [![CSA Cyber - Cyber Security Solutions to Protect your People](https://csacyber.com/hs-fs/hubfs/CSA%20Cyber%20Logo%20FNL_Full%20Logo.png?width=300&height=108&name=CSA%20Cyber%20Logo%20FNL_Full%20Logo.png "CSA Cyber - Cyber Security Solutions to Protect your People")](https://csacyber.com/?hsLang=en) - Services - [Offensive Security Services](https://csacyber.com/offensive-security-services) - [Penetration Testing](https://csacyber.com/penetration-testing) - [Red Teaming and attack simulations](https://csacyber.com/offensive-security-services#red-teaming) - [Continuous testing](https://csacyber.com/offensive-security-services#continuous-assurance) - [Managed offensive security](https://csacyber.com/offensive-security-services#managed-offensive) - [Consultancy Services](https://csacyber.com/cyber-consultancy-services) - [Frameworks & assessments](https://csacyber.com/cyber-consultancy-services/frameworks-and-assessments) - [Data protection](https://csacyber.com/cyber-consultancy-services#data-protection) - [Virtual leadership](https://csacyber.com/cyber-consultancy-services#virtual-leadership) - [Technical security consulting](https://csacyber.com/cyber-consultancy-services#technical-consultancy) - [Governance, Risk & Compliance (GRC)](https://csacyber.com/cyber-consultancy-services/governance-risk-and-compliance-services) - [Extended Managed Security Services](https://csacyber.com/extended-managed-security-services) - [Microsoft Sentinel SIEM](https://csacyber.com/extended-managed-security-services#microsoft-sentinel) - [SOC services](https://csacyber.com/extended-managed-security-services#soc-services) - [SentinelOne Endpoint Detection & Response (EDR)](https://csacyber.com/extended-managed-security-services#cyber-helpdesk) - [Incident Response Services](https://csacyber.com/incident-response-services) - [Emergency Incident Response](https://csacyber.com/urgent/emergency-incident-response) - [Incident Response Retainer](https://csacyber.com/incident-response-services) - [Cyber Incident Readiness & Response Planning](https://csacyber.com/incident-response-services) - [Tabletop Exercises & Live-Range Engagements](https://csacyber.com/incident-response-services) - [Specialist Security Services](https://csacyber.com/specialist-services) - [AI Security](https://csacyber.com/cyber-services-for-ai) - [Operational Technology (OT)](https://csacyber.com/specialist-services#operational-technology) - [Cyber security for Private Equity](https://csacyber.com/specialist-services#mergers-and-acquisitions) - [Cyber training and education](https://csacyber.com/specialist-services#training-and-education) - [Virtual leadership](https://csacyber.com/specialist-services#leadership) - [Cyber Technologies](https://csacyber.com/cyber-technologies) - [SentinelOne Endpoint Detection & Response (EDR)](https://csacyber.com/cyber-technologies#sentinelone) - [AppGuard Endpoint & Server Zero Trust Protection](https://csacyber.com/cyber-technologies#appguard) - [Qualys Vulnerability Management as a Service (VMaaS)](https://csacyber.com/cyber-technologies#qualys-vmaas) - [Lookout Mobile Device Protection](https://csacyber.com/cyber-technologies#lookout) - [ThreatER DNS Protection](https://csacyber.com/cyber-technologies#threater-dns) - [Cyber Security Awareness & Training platform](https://csacyber.com/cyber-technologies#boxphish) - [About](https://csacyber.com/about-us) - [Careers](https://csacyber.com/careers) - [Certifications](https://csacyber.com/certifications-and-awards) - [Blog](https://csacyber.com/blog) - [Support Centre](https://csacyber.com/support) - Resources - [Case Studies](https://csacyber.com/case-studies) - [Downloads & Reports](https://csacyber.com/downloads-and-reports) - [Webinars](https://csacyber.com/webinars) - [Partners](https://csacyber.com/partners) - [Cyber Bundles (IT MSPs)](https://csacyber.com/cyber-bundles) - [Contact](https://csacyber.com/contact-us) - Search Search Search [Cyber Security for Enterprises](https://csacyber.com/contact-us?hsLang=en) # Your organisation's trusted partner in layered cyber resilience Our UK-based experts deliver end-to-end cyber security services to high-profile clients and critical sectors worldwide; integrating a true 24/7 Security Operations Centre (SOC), dedicated in-house Red Team and Penetration Testers, and accredited risk and compliance consultants to strengthen your web of resilience. [Get in touch](https://csacyber.com/contact-us?hsLang=en) [Explore Services](https://csacyber.com#services) [Cyber Security for Enterprises](https://csacyber.com/contact-us?hsLang=en) # Your organisation's trusted partner in layered cyber resilience Our UK-based experts deliver end-to-end cyber security services to high-profile clients and critical sectors worldwide; integrating a true 24/7 Security Operations Centre (SOC), dedicated in-house Red Team and Penetration Testers, and accredited risk and compliance consultants to strengthen your web of resilience. [Get in touch](https://csacyber.com/contact-us?hsLang=en) [Explore Services](https://csacyber.com#services) ###### MEET CSA CYBER ## The nation's benchmark for accredited cyber expertise  Holding the broadest accreditation portfolio in the UK cyber sector, CSA Cyber offers assurance built on independently validated expertise, giving organisations confidence that their protection meets the highest industry benchmarks.  ### One partner, multi-layered cyber resilience A premium suite of accredited services shaped by deep heritage in securing critical sectors and high-profile clients.   ### Leading the UK for cyber excellence  Our UK-based, security-cleared teams are trusted by clients and validated by recognised industry bodies across the globe.   ### Engineered for high-security delivery Our practice is deliberately scaled to combine major-provider capability with specialist-level precision and trust.   ![ISO-IEC 42001 1](https://csacyber.com/hs-fs/hubfs/ISO-IEC%2042001%201.png?width=280&height=146&name=ISO-IEC%2042001%201.png) ![ISO 27001 1](https://csacyber.com/hs-fs/hubfs/ISO%2027001%201.png?width=280&height=146&name=ISO%2027001%201.png) ![ISO 9001 1](https://csacyber.com/hs-fs/hubfs/ISO%209001%201.png?width=280&height=146&name=ISO%209001%201.png) ![accred-ccoe](https://csacyber.com/hs-fs/hubfs/accred-ccoe.png?width=450&height=300&name=accred-ccoe.png) ![accred-microsoft-1](https://csacyber.com/hs-fs/hubfs/accred-microsoft-1.png?width=450&height=300&name=accred-microsoft-1.png) ![MISA Member badge\_white background\_MS Security logo-1](https://csacyber.com/hs-fs/hubfs/MISA%20Member%20badge_white%20background_MS%20Security%20logo-1.jpg?width=2435&height=1326&name=MISA%20Member%20badge_white%20background_MS%20Security%20logo-1.jpg) ![CE-Cert-Body](https://csacyber.com/hs-fs/hubfs/CE-Cert-Body.png?width=345&height=163&name=CE-Cert-Body.png) ![CE-Plus-Cert-Body](https://csacyber.com/hs-fs/hubfs/CE-Plus-Cert-Body.png?width=344&height=162&name=CE-Plus-Cert-Body.png) ![accred-octwf-1](https://csacyber.com/hs-fs/hubfs/accred-octwf-1.png?width=450&height=300&name=accred-octwf-1.png) ![CHECK Penetration Testing (Dark Logo)](https://csacyber.com/hs-fs/hubfs/CHECK%20Penetration%20Testing%20(Dark%20Logo).png?width=1074&height=544&name=CHECK%20Penetration%20Testing%20(Dark%20Logo).png) ![62e468cf-a2e6-4271-840c-ba22fd7cd710](https://csacyber.com/hs-fs/hubfs/62e468cf-a2e6-4271-840c-ba22fd7cd710.png?width=541&height=278&name=62e468cf-a2e6-4271-840c-ba22fd7cd710.png) ![accreds-pciqsa-1](https://csacyber.com/hs-fs/hubfs/accreds-pciqsa-1.png?width=450&height=300&name=accreds-pciqsa-1.png) ![accred-caa-1](https://csacyber.com/hs-fs/hubfs/accred-caa-1.png?width=450&height=300&name=accred-caa-1.png) ![certs-part3\_0003\_PT-1](https://csacyber.com/hs-fs/hubfs/certs-part3_0003_PT-1.jpg?width=136&height=157&name=certs-part3_0003_PT-1.jpg) ![certs-part3\_0001\_STAR-1](https://csacyber.com/hs-fs/hubfs/certs-part3_0001_STAR-1.jpg?width=136&height=157&name=certs-part3_0001_STAR-1.jpg) ![certs-part3\_0000\_va-1](https://csacyber.com/hs-fs/hubfs/certs-part3_0000_va-1.jpg?width=136&height=157&name=certs-part3_0000_va-1.jpg) ![certs-part3\_0002\_SOC-1](https://csacyber.com/hs-fs/hubfs/certs-part3_0002_SOC-1.jpg?width=136&height=157&name=certs-part3_0002_SOC-1.jpg) ![certs-part3\_0004\_IR-1](https://csacyber.com/hs-fs/hubfs/certs-part3_0004_IR-1.jpg?width=136&height=157&name=certs-part3_0004_IR-1.jpg) ![comptia logo](https://csacyber.com/hs-fs/hubfs/comptia%20logo.webp?width=350&height=350&name=comptia%20logo.webp) ![AG-Distributor](https://csacyber.com/hs-fs/hubfs/AG-Distributor.png?width=500&height=400&name=AG-Distributor.png) ![AG-mssp](https://csacyber.com/hs-fs/hubfs/AG-mssp.png?width=500&height=400&name=AG-mssp.png) ###### Threat intelligence report ## Inside the tactics of prolific ransomware group: Akira Discover how CSA Cyber’s expert SOC analysts detect and defend against one of today’s most aggressive ransomware groups.  [Access the report](https://csacyber.com/lp/akira-threat-report?hsLang=en) ## Attack your security goals from every angle With our end-to-end cyber services,your organisation can achieve every goal through proactive testing, strategic guidance, and true 24/7 protection to stay and compliant in the face of evolving threats and regulations. Threat management Stay ahead of attackers by identifying and mitigating risks before they strike. **Offensive security ✓** Stress-test defences and identify vulnerabilities before they're exploited. **Consultancy ✓** Advise on security strategies and resource allocation for maximum impact. **Managed security ✓ **Outsource detection and response for assurance and reduced internal strain. Strategic alignment Ensure security investments align with business priorities and governance. **Offensive security ✓** Reveal gaps for strategic remediation and prioritise investment. **Consultancy ✓** Align your security posture with business objectives and manage third-party risk. **Managed security ✓** Deliver ongoing assurance and reporting to satisfy board-level governance. Compliance Meet regulatory requirements and maintain audit-ready controls. **Offensive security** **✓** Validate technical controls required for compliance frameworks. **Consultancy** **✓** Ensure compliance readiness through audits, gap analysis and regulatory alignment. **Managed security** **✓** Create a complete audit trail for compliance and accountability. Operational resilience Manage human risk and ensure continuity during incidents. **Offensive security ✓** Simulate real-world attacks to measure resilience under pressure. **Consultancy ✓** Develop policies, training and resilience planning to reduce human-factor risk. **Managed security ✓** Rapid detection and response to minimise downtime and operational impact. ## Our cyber security services Comprehensive capabilities delivered by specialised and accredited teams, from 24/7 monitoring, detection and response to strategic consultancy. ### Offensive security #### [Penetration Testing Targeted testing across Applications, Infrastructure, AI/LM and more.](https://csacyber.com/offensive-security-services?hsLang=en) #### [Continuous Testing Ongoing testing model for a constant view of threat exposure.](https://csacyber.com/offensive-security-services?hsLang=en) #### [Red/Purple Teaming Stress-test monitoring, detection and response capabilities with authentic attack simulations.](https://csacyber.com/offensive-security-services?hsLang=en) #### [Vulnerability Management as a Service (VMaaS) Prioritise vulnerability insight aligned to real-world risk.](https://csacyber.com/offensive-security-services?hsLang=en) [View all services](https://csacyber.com/offensive-security-services?hsLang=en) ### Cyber consultancy #### [ISO 27001: Information Security Achieve and maintain ISO 27001 with clear, structured implementation support.](https://csacyber.com/cyber-consultancy-services?hsLang=en) #### [Cyber Security Assessment Assess current security maturity, risk exposure and control effectiveness.](https://csacyber.com/cyber-consultancy-services?hsLang=en) #### [Cyber Security Architecture Security architecture design aligned to business risk and operational needs.](https://csacyber.com/cyber-consultancy-services?hsLang=en) #### [Virtual Leadership Access experienced virtual security leadership across roles including CISO, DPO, ISM and...](https://csacyber.com/cyber-consultancy-services?hsLang=en) [View all services](https://csacyber.com/cyber-consultancy-services?hsLang=en) ### Extended managed security #### [SOC Services Continuous monitoring, detection and response to security events across endpoint, network and...](https://csacyber.com/extended-managed-security-services?hsLang=en) #### [Microsoft Sentinel SIEM Centralised security visibility and detection through Microsoft Sentinel.](https://csacyber.com/extended-managed-security-services?hsLang=en) #### [SentinelOne & Microsoft Defender for Endpoint Monitoring Endpoint detection and response with integrated expert-led operation.](https://csacyber.com/extended-managed-security-services?hsLang=en) #### [24/7 Cyber Helpdesk Always-on, frontline support for security queries and incidents.](https://csacyber.com/extended-managed-security-services?hsLang=en) [View all services](https://csacyber.com/extended-managed-security-services?hsLang=en) ### Incident response #### [Emergency Incident Response Immediate expert support to contain and resolve live security incidents.](https://csacyber.com/incident-response-services?hsLang=en) #### [Incident Response Retainers On-demand and ongoing incident response support during critical cyber incidents.](https://csacyber.com/incident-response-services?hsLang=en) #### [Incident Response Tabletop Exercises Simulated incident exercises to validate response plans and decision-making.](https://csacyber.com/incident-response-services?hsLang=en) [View all services](https://csacyber.com/incident-response-services?hsLang=en) ### Specialist services #### [AI Security Services Secure AI systems, LLMs and data against emerging threats and misuse.](https://csacyber.com#services) #### [Operational Technology Secure critical systems that underpin industrial and operational environments.](https://csacyber.com#services) #### [Cyber Due Diligence (M&A) Assess cyber risk and exposure across mergers, acquisitions and investments.](https://csacyber.com#services) [View all services](https://csacyber.com/specialist-services?hsLang=en) ### Cyber technologies #### [SentinelOne Endpoint Detection & Response (EDR) AI-driven endpoint detection and response across complex environments.](https://csacyber.com/cyber-technologies?hsLang=en) #### [Qualys Vulnerability Management as a Service (VMaaS) Continuous vulnerability insight and prioritisation aligned to real risk.](https://csacyber.com/cyber-technologies?hsLang=en) #### [AppGuard Endpoint & Server ZeroTrust Protection Prevention-based endpoint security enforcing Zero Trust control.](https://csacyber.com/cyber-technologies?hsLang=en) [View all services](https://csacyber.com/cyber-technologies?hsLang=en) ###### PROBLEMS WE SOLVE ## Struggling to retain resilience as your estate grows in complexity? Expanding technologies, evolving threats and fragmented controls make it increasingly difficult to maintain visibility, respond effectively and stay resilient under pressure. Our integrated cyber capabilities bring clarity, control and response together; helping you strengthen resilience across your organisation, even as your environment grows. **Offensive Security** Uncover hidden vulnerabilities across complex environments through real-world testing, providing clarity on where exposure exists and how it can be exploited. **Consultancy** Define governance and security architecture that bring structure to complexity, aligning controls, risk management and visibility with business priorities. **Managed Security** Maintain continuous visibility, detection and response across your environment, ensuring threats are identified and managed before they impact operations. ## Security proven at scale Every day, we handle an immense volume of threats, monitor thousands of endpoints, and deliver rigorous security assessments.   For our customers, this means confidence that attacks are stopped before they cause damage, compliance is maintained without compromise, and resilience is built into every layer of their business. It’s the scale and precision behind the trust organisations place in us. [Learn more about us](https://csacyber.com/about-us?hsLang=en) ### 100m+ Events processed monthly ### 10,000+ Assessments conducted ### 400+ Companies protected ### 35,000+ Devices monitored Your browser does not support the video tag. Robert McCracken, General Council of the Bar Industry: Legal ## Defending critical legal services against persistent attacks When the General Council of the Bar faced relentless pressure, surging firewall attacks and **830,000 malicious emails in a single month,** they turned to CSA for discreet, precision monitoring. By taking on the burden of threat oversight, we alleviated internal strain and restored confidence. Our UK‑based 24/7 SOC delivers the same disciplined approach for organisations where security is non‑negotiable: continuous monitoring, rapid response, and transparent reporting, so your team can focus on what matters most while we keep watch. [Hear from more CSA customers](https://csacyber.com/case-studies?hsLang=en) ## Complete cyber assurance starts here Talk to a specialist about how our premium suite of accredited services can build layered resilience against evolving cyber risk.   [Get in touch](https://csacyber.com/contact-us?hsLang=en) [![CSA Cyber Logo FNL\_Full Logo](https://csacyber.com/hs-fs/hubfs/CSA%20Cyber%20Logo%20FNL_Full%20Logo.png?width=3463&height=1248&name=CSA%20Cyber%20Logo%20FNL_Full%20Logo.png "CSA Cyber Logo FNL_Full Logo")](https://csacyber.com/?hsLang=en) Established in 2013, Cyber Security Associates Limited trading as CSA Cyber provides cyber consultancy and cyber managed services which help to detect, protect and educate against the ever-changing cyber threat. We have built our team from a foundation of Government (ex-Military) and Commercially experienced specialists all holding current and relevant cyber certifications. Today our core services are based around a 24/7 Security Operations Centre (SOC) based in Gloucester. #### News & Resources - [Blog](https://csacyber.com/blog) - [Case Studies](https://csacyber.com/case-studies) - [Downloads & Reports](https://csacyber.com/downloads-and-reports) - [Webinars](https://csacyber.com/webinars) - [Careers](https://csacyber.com/careers) - [Cyber Bundles (IT MSPs)](https://csacyber.com/cyber-bundles) #### Quick Links - [About Us](https://csacyber.com/about-us) - [Certifications](https://csacyber.com/certifications-and-awards) - [Our Parent Company](https://www.fluidone.com) - [Partners](https://csacyber.com/partners) - [Contact Us](https://csacyber.com/contact-us) - [Anti Bribery Policy](https://csacyber.com/hubfs/CSAAnti-BriberyPolicy.pdf) - [Complaints Policy](https://csacyber.com/hubfs/CSAComplaintsPolicy.pdf) - [Corporate Social Responsibility Policy](https://csacyber.com/hubfs/CSACorporateSocialResponsibilityPolicy.pdf) - [Slavery and Human Trafficking Statement](https://csacyber.com/hubfs/CSASlaveryandHumanTraffickingStatement.pdf) - [NCSC CHECK Status Verification](https://www.ncsc.gov.uk/organisation/csa-cyber/check-penetration-testing) - [CREST Approved Certification Verification](https://www.crest-approved.org/member_companies/csa-cyber/) #### Contact Information **United Kingdom - London** Cyber Security Associates Ltd 5 Hatfields, London, SE1 9PG   **United Kingdom - Gloucester** Cyber Security Associates Ltd Unit 11, Wheatstone Court, Waterwells Business Park, GL2 2AQ   **Phone:** [+44(0) 300 303 4691](tel:03003034691) **Email:** [hello@csacyber.com](mailto:hello@csacyber.com)   **United States of America** Cyber Security Associates Inc. 6010 W. Spring Creek Pkwy, Plano, Texas, 75024   **Phone:** [+1 469 750 1695](tel:14697501695)  **Email:** [hello@csacyber.com](mailto:hello@csacyber.com)   [![trust-pilot](https://csacyber.com/hs-fs/hubfs/trust-pilot.png?width=178&height=104&name=trust-pilot.png)](https://uk.trustpilot.com/review/csa.limited)   --- - [Website Terms of Use](https://csacyber.com/website-terms-of-use) - [Website Privacy Policy](https://csacyber.com/privacy-notice) - [Website Cookie Policy](https://csacyber.com/cookie-policy) Copyright 2026. Cyber Security Associates Ltd [Follow us on Facebook](https://www.facebook.com/CSALIMITED/) [Follow us on LinkedIn](https://www.linkedin.com/company/csa-cyber/) [Follow us on Twitter](https://twitter.com/cybersecurityis) [Follow us on Facebook](https://www.youtube.com/@cybersecurityassociateslim) [Follow us on Facebook](https://www.instagram.com/cybersecurityassociates)