Business Details
43 Years
experience
Emergency
services
Your Trusted IT Partner in London
Established in 1983, Computer Systems Integration has built a reputation as a global leader in managed IT services, specialising in cloud solutions, cyber security, and data protection. As an IBM Platinum Partner, we combine cutting-edge technology with 40 years of expertise to deliver mission-critical infrastructure for regulated industries. Our team of certified professionals provides 24/7 support, ensuring businesses achieve operational resilience, cost efficiency, and compliance.We prioritise client-centric innovation, offering tailored solutions that integrate public and private cloud environments, hybrid architectures, and advanced security frameworks. With a proven track record in application modernisation and infrastructure optimisation, we empower organisations to future-proof their IT ecosystems while maintaining unwavering service reliability.
Services
IBM Power Managed Services
Cloud Migration
Cyber Security Services
Data Protection
Application Modernisation
Disaster Recovery
Storage Solutions
IT Automation
Endpoint Protection
Hybrid Cloud Solutions
Details
- Year established: 1983
Highlights and features
- 40 years of expertise in mission-critical IT infrastructure
- 24/7 global support with ISO-certified service delivery
- Award-winning IBM Platinum Partner with 900+ combined years of technical experience
- End-to-end cyber security solutions aligned with NIST and ISO 27001 frameworks
- Hybrid cloud specialists optimising multi-platform environments
Associations and certifications
- IBM Platinum Partner
What people say
24/7 proactive monitoring
Expert IBM Power knowledge
Seamless cloud migration
Regulatory compliance specialists
Rapid incident response
Services
IBM Power Managed Services
Optimise IBM Power infrastructure with 24/7 monitoring, high-availability configurations, and cloud integration. Our specialists ensure peak performance for AIX, IBM i, and Linux workloads while reducing operational costs through PAYG models and legacy system modernisation. Trusted by regulated industries for over 40 years.
Cloud Migration
Seamless migration to hybrid or public cloud environments with cost-optimisation and security. We specialise in Azure, AWS, and IBM Cloud, providing end-to-end support from strategy to implementation. Our Nutanix-powered solutions ensure workload flexibility and compliance for complex IT estates.
Cyber Security Services
Comprehensive security solutions including MDR, endpoint protection, and phishing defence. Our 24/7 SOC combines IBM QRadar and AI-driven tools to detect threats, while ISO 27001-aligned frameworks ensure compliance. Services include penetration testing and cyber insurance guidance.
Data Protection
Enterprise-grade backup, disaster recovery, and storage optimisation with 99.9% SLAs. We implement AI-powered cyber defences and NIST-aligned resiliency strategies. Our Helix Cyber Resiliency Service ensures compliance and rapid recovery for mission-critical data across hybrid environments.
Application Modernisation
Transform monolithic applications into scalable microservices using containerisation and DevOps. Our IBM Cloud Pak for Watson AIOps automates performance management while reducing technical debt. Services include cloud-readiness assessments and Kubernetes orchestration for hybrid multicloud platforms.
People
Belinda St Clare Inwood
Senior Technology Partner Specialist
With 20+ years in enterprise IT, Belinda specialises in IBM ecosystem partnerships and hybrid cloud strategies. She drives innovation in regulated sectors, focusing on Power Systems optimisation and digital transformation roadmaps for global clients.
Steve Alcock
Client Director
Leading Computer Systems Integration's application modernisation initiatives, Steve has 15 years of experience in IT automation and cloud-native architectures. He advises Fortune 500 companies on DevOps adoption and sustainable infrastructure strategies aligned with ESG goals.
Questions
What cloud platforms do you support?
We provide managed services for Microsoft Azure, AWS, IBM Cloud, and hybrid environments using Nutanix and VMware. Our engineers hold advanced certifications across all major hyperscalers.
How do you handle data compliance?
Our data protection services align with ISO 27001, GDPR, and NIST frameworks. We implement encryption, access controls, and audit-ready reporting to ensure regulatory compliance.
Can you modernise legacy IBM systems?
Yes, we specialise in IBM Power Systems modernisation, including AIX, IBM i, and Linux environments. Our CSI PowerCloud platform enables legacy application migration to secure hybrid cloud infrastructures.
Do you offer cyber security assessments?
We provide free Cyber Resiliency Assessments using NIST frameworks to identify vulnerabilities and create tailored remediation roadmaps for enterprises.
What industries do you serve?
We focus on regulated sectors including finance, healthcare, public sector, and manufacturing. Our clients range from SMEs to Fortune 500 companies requiring mission-critical infrastructure.
How is support structured?
Our 24/7 Service Desk offers tiered support with guaranteed SLAs. We provide proactive monitoring, incident resolution, and strategic consultancy through dedicated account management teams.
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