London skyline at golden hour

IT Infrastructure
Built on Trust

Deciso Limited brings 40 years of IT expertise to businesses across London, delivering reliable consultancy and hands-on infrastructure management.

40+
Years IT Experience
300TB
Data Managed
24/7
Support
100%
Client Retention

Comprehensive IT Services

From network infrastructure to cloud management, we provide end-to-end IT solutions tailored to your business requirements.

AI & Automation

We work with the latest AI platforms—Claude, ChatGPT, Grok, Manus.AI—plus local LLM deployments for businesses that need AI on their own terms. Intelligent video search with Axle AI.

Microsoft

Microsoft 365, Windows desktops and servers, Hyper-V, Active Directory, PowerShell—if it's Microsoft, we've got it covered.

Linux & Virtualisation

Ubuntu desktops and servers, Proxmox hypervisors and backup, custom scripting. Open-source done right.

Cloud & Backup

Hosted cloud, private cloud, off-site backup, file replication, Synology NAS and backup. Your data, protected and available.

Networking & Hardware

MikroTik routers and switches, HP ProLiant servers. Solid foundations for reliable networks.

Cyber Security

Vulnerability assessments, threat monitoring, security audits, and best-practice implementation. Protect your business before problems start.

Email & Endpoint Protection

OpenText mail protection and Webroot antivirus. Keep the threats out.

Surveillance

Hikvision CCTV, Synology NVR, AI-powered video search. See everything, find anything.

Cross-Platform

macOS, Windows, Linux—all playing nicely together.

Business Software

Sage 50 Accounts support to keep your finances on track.

Trusted by Industry Leaders

Our client relationships span decades, built on reliability, expertise, and a deep understanding of each business's unique requirements.

Featured Partnership

Major Film Production Company

We have managed the complete IT infrastructure for a major London-based film production company for 27 years. Over that time, we've guided them through significant technology transitions—from Lotus Mail to on-premises Exchange 2010, then to Exchange 2019, and finally to Office 365. Our ongoing responsibilities include firewall management and stewardship of their extensive 300TB archive of stills and film clips.

Email MigrationsOffice 365300TB Archive27 Year Partnership
Professional server infrastructure
London Restaurant Group

London Restaurant Group

What started as a WiFi troubleshooting call became a lasting partnership. Their previous IT provider couldn't solve persistent connectivity issues—we diagnosed IP address conflicts and network misconfigurations in hours. Since then, we've designed and deployed networks for their Covent Garden and City locations using MikroTik VLAN infrastructure with 1Gbps connectivity, built using AI-assisted planning tools.

HospitalityNetwork DiagnosticsMulti-siteVLAN Networks
Thames Valley Law Firm

Thames Valley Law Firm

An 11-year partnership that began during a sensitive business transition. We inherited a system with critical backup failures and quietly rebuilt their infrastructure—migrating from Exchange 2010 to 2019, implementing Synology backups with off-site redundancy, and establishing proper data protection. Now planning their move to Office 365 integrated with their legal case management system.

Legal SectorDisaster RecoveryExchange Migration11 Year Partnership

FMCG Brand

Office 365 environment management and ongoing IT support.

Cloud Services

Experience You Can Rely On

I'm the founder of Deciso Limited. My career began in credit management and finance—I was Finance Director of a computer publishing company—but I found accounting unfulfilling and followed my curiosity into computing. That curious mind has served me well across 40 years in the industry.

I've always been a bit alternative in my approach. Rather than defaulting to a single vendor, I look for the most appropriate solution for each situation—whether that's Microsoft, Linux, or something else entirely. The new AI tools have been transformative, enabling me to engage in a far greater range of activities and deliver solutions I couldn't have imagined a few years ago.

From managing 300TB media archives for film production companies to rolling out multi-site restaurant networks designed with AI-assisted planning, my approach is simple: understand your business first, then apply the right technology. No jargon, no vendor lock-in—just solutions that work.

"Technology should serve your business, not complicate it."

Abstract network connectivity visualization

Let's Discuss Your Requirements

Whether you're looking to upgrade your infrastructure, migrate to the cloud, or need ongoing IT support, we're here to help. Get in touch to arrange a consultation.

Location

3rd Floor, 86-90 Paul Street, London EC2A 4NE

Ready to Talk?

The best way to discuss your requirements is to get in touch directly. Whether you prefer email or a phone call, I'm happy to have an initial conversation about how we might work together.

Available Monday to Friday, 9am - 6pm