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ACT Systems Ltd

Listed

LONDON · GREATER LONDON

EST. 2003 11-50 staff

Overview

AI-generated

ACT Systems is a Reading-based managed IT support and cyber security provider serving businesses across London, Berkshire, and the Thames Valley. Founded in 2003, they deliver cloud-first IT services including managed support, cyber security, and cloud infrastructure for regulated and professional service organisations.

Known for: Microsoft 365 and cloud-first IT support for regulated industries

Managed IT support Microsoft 365 and Azure Cyber security Cloud migration and backup Compliance and governance
Self-certified score · awaiting independent verification
34/50
Self-certified
0 S·25 G·32 P·40 50

This score reflects what ACT Systems Ltd has declared about its credentials. It has not been independently verified by WhatMSP — only a verified score earns the metal badge and unlocks tenders.

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Company

23 yrs
Years trading

Capabilities

Services
IT Support & Helpdesk Cybersecurity Cloud & Microsoft 365 IT Infrastructure VoIP & Telecoms Microsoft 365 Backup & Disaster Recovery Managed Security (SOC) IT Helpdesk & Service Desk IT Consultancy & Strategy
Industry expertise
Professional Services Finance & Banking Healthcare Energy & Utilities
Specialisms
Dental Practices Accountancy Firms Law Firms Architecture & Design Estate Agents Financial Services Hospitality & Leisure Azure Migration Microsoft 365 Deployment Network Design VoIP Migration Server Virtualisation Disaster Recovery Cloud Backup Solutions Endpoint Security Enterprise WiFi
Areas covered
London Reading Berkshire Slough Bracknell Maidenhead Wokingham Newbury Windsor Oxford Oxfordshire Hampshire Southampton Portsmouth Winchester Basingstoke Romsey Fareham

Companies House

Verified
Company no.
08394748
Status
active
Incorporated
2013
Years trading
13
Directors
SISEMAN, Darren Mark SISEMAN, Darren Mark RICHARDS, Dennis RICHARDS, Dennis

Website security

Does this provider secure its own website? Independently checked by WhatMSP from public signals.

C 58/100
Transport
HTTPS Forces HTTPS HSTS
Headers
Content-Security-Policy Clickjacking protection No MIME sniffing Referrer-Policy Permissions-Policy
Email authentication
SPF DMARC DMARC enforced

Checked Jun 2026 — TLS, HTTP security headers & SPF/DMARC email authentication. WhatMSP is not affiliated with this provider.

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