IT Security Services in London

IT security services London businesses trust to stay ahead of ransomware, phishing and evolving cyber threats, backed by 20+ years of managed IT security experience.

Get in Touch 020 4511 9111
24/7 Unlimited support
CE+ Cyber Essentials
500+ Clients supported
from £25 per user / month
About this service

IT Security Services London, Personalised for Your Business

Speedster IT is a trusted Managed Security Services Provider (MSSP) delivering IT security services London businesses rely on. We do not believe in one-size-fits-all, our team designs personalised security strategies with flexible pricing to keep your business secure and compliant.

For over 20 years we have helped businesses of all sizes stay protected with industry-leading IT security solutions. As cyber threats evolve, so do we, and our expertise grows with the latest technologies to keep you one step ahead.

20+years in London
24/7unlimited helpdesk
500+businesses supported
CE+Cyber Essentials Plus

Certified, accredited IT security services

Cyber Essentials certified, WatchGuard Gold Partner, with partnerships across Cisco, Yealink, Ubiquiti and UniFi, giving you accredited IT security services London businesses can verify, not just take our word for.

The Challenge

Why IT Security Matters More Than Ever in London

Ransomware, AI-driven phishing and deepfake fraud, supply-chain vulnerabilities, and stricter cyber compliance are now board-level responsibilities for every London business.

Ransomware Protection

Managed Detection and Response, EDR, and immutable, air-gapped backup strategies.

AI-Driven Phishing Defence

Layered email security against BEC, CEO fraud and deepfake voice attacks.

NIS2 & Cyber Resilience Compliance

Practical guidance for the Cyber Security and Resilience Bill and NIS2.

Managed SOC for SMEs

24/7 monitoring and threat response without an in-house security team.

24/7 Helpdesk coverage
20+ Years experience
CE+ Cyber Essentials
500+ Users supported
What We Cover

What Our IT Security Services London Team Covers

Enterprise-level protection without enterprise-level cost, tailored to your risk profile.

Ransomware & MDR

Managed Detection and Response with rapid incident response support.

Email Security

Advanced filtering, behavioural analysis and phishing awareness training.

Compliance (NIS2, Cyber Essentials)

Policy development, incident reporting frameworks and certification support.

Managed SOC

24/7 monitoring, vulnerability management and patching.

Cyber Insurance Readiness

MFA, endpoint validation and incident response documentation insurers require.

Penetration Testing

Independent verification of your defences, required for CE Plus and ISO 27001.

Why Choose Us

Why Choose Our IT Security Company in London

Certified, accredited, and trusted by London businesses for over 20 years.

Cyber Essentials Certified

Certification for compliance and genuine peace of mind.

WatchGuard Gold Partner

Advanced firewall protection from a leading security vendor.

20+ Years of Experience

Delivering tailored managed IT security services across London.

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Frequently asked questions

Yes. Speedster IT is a trusted Managed Security Services Provider, delivering IT security services London businesses rely on, including Cyber Essentials certification, EDR/MDR, and 24/7 SOC monitoring.

Speedster IT provides a comprehensive IT security portfolio: Cyber Essentials and CE Plus certification, endpoint detection and response (EDR/MDR), email security and anti-phishing, multi-factor authentication, zero trust network access, dark web monitoring, penetration testing, security awareness training, and 24/7 SOC monitoring.

Traditional antivirus uses signature-based detection to block known malware. EDR is behavioural, it monitors all activity on a device in real time, detects suspicious patterns (even from unknown threats), and can automatically quarantine devices and roll back changes. EDR catches the sophisticated attacks that antivirus misses.

Speedster IT conducts a gap assessment against the five Cyber Essentials controls, implements any required changes (firewall rules, patching schedules, MFA, access controls), and guides you through the self-assessment submission. For CE Plus, we arrange and support the independent technical audit. Most clients achieve certification within 4 to 8 weeks.

BEC attacks impersonate executives or suppliers to authorise fraudulent payments. Defence requires email authentication (DMARC, DKIM, SPF), spam filtering with sandboxing, conditional access policies that flag unusual sign-in behaviour, and staff training on verification procedures for payment requests. Speedster IT implements all of these.

Yes. A penetration test provides independent verification that your defences work as expected, it is distinct from the day-to-day management your IT company provides. Penetration testing is required for Cyber Essentials Plus, many cyber insurance policies, ISO 27001, and a growing number of enterprise supplier vetting programmes.