Strong IT.
Stronger Business.
Managed IT support, cyber security and AI readiness for businesses and charities across Sussex, from our Burgess Hill base since 1996.
Free, no-obligation review · Friendly local team in Burgess Hill
- Since 1996
- NCSC Assured Service Provider
- IASME Cyber Assurance Level 2
- Burgess Hill based
Local IT support across Sussex
IT support near you, from our Burgess Hill base
We've supported Sussex businesses and charities since 1996 from our office at Ashwyn Business Centre, Burgess Hill. Find out how we help in your area:
IT Support Burgess Hill
Our home town. Managed IT, cyber security and telecoms for businesses across Mid Sussex.
IT support in Burgess Hill →IT Support Brighton & Hove
Supporting organisations in Hove, Portslade, Shoreham, Kemp Town and across the city.
IT support in Brighton & Hove →IT Support Crawley
From Manor Royal and Three Bridges to Gatwick and Horley, including healthcare practices.
IT support in Crawley →
Government-backed assurance
An NCSC Assured Service Provider
ABCOM is an Assured Service Provider – Cyber Advisor (Cyber Essentials) under the National Cyber Security Centre’s scheme. Our Cyber Advisors are independently assessed by IASME for the NCSC, and help organisations put the Cyber Essentials controls in place.
- Cyber Advisor (Cyber Essentials)
- IASME Cyber Assurance Level 2
- Free 30-minute cyber security review
Managed IT & cyber security
Managed IT Support & Cyber Security for Sussex Businesses
Connected, protected and productive. Personal, responsive support built around the way you work, whether you’re a small team or a multi-site organisation.
Who we help
Meet the team
What we do
Solutions Built to Keep Your Business Moving
All the expertise you need, from one trusted partner.
Managed IT Services
Proactive IT support, secure system configuration, patch management and continuous monitoring to keep your business stable, compliant and productive.
Managed IT →Cybersecurity
Cyber Essentials-aligned security controls including endpoint protection, malware defence, access control and ongoing security monitoring.
Cyber security →Connectivity
Secure business connectivity including SoGEA, leased lines, managed firewalls and business-grade Wi-Fi designed to protect data in transit.
Connectivity →Telecoms
VoIP and Microsoft Teams phone systems with AI-enabled CRM integration, call analytics and secure communications to improve customer engagement.
Telecoms →AI Readiness
Prepare your business for AI with a structured review of Microsoft 365, security, data governance, policies and opportunities for automation.
AI Readiness →Microsoft 365 & Cloud
Make more of Microsoft 365 with secure setup, licensing, backup and practical support for Teams, SharePoint and cloud working.
Microsoft 365 →
Free guide
What every business should know before changing IT support in 2026
Inside, you’ll discover:
- What “strategic IT support” actually means in practice
- Why many businesses eventually change IT providers
- How to protect your most valuable business asset
- Why scepticism is smart, even when choosing us
Real Results, Backed by Real People
You don’t have to take our word for it.
See how we’ve helped other businesses boost efficiency, cut costs, and get IT sorted… for good.
Trusted UK IT & cyber security provider
What Makes ABCOM Different?
People-first service. Long-term partnerships. Practical, honest advice. We’re not just here to fix issues, we’re here to help you grow with technology that keeps up.
- Clear, jargon-free communication
- Fast, friendly helpdesk
- Nationwide support with a local feel
Knowledge Hub
Answers, Insights and Plain-English Guidance
From the 2027 PSTN switch-off to cyber security and the cloud, practical advice to help you make better IT decisions.
Cyber Essentials 2026 Changes Explained
From April 2026, tougher marking includes automatic fails for missing MFA and delayed critical updates. Here’s what’s changing.
Read the guide →GuidesEssential Steps for Upgrading to Windows 11
Windows 10 reached end of support on 14 October 2025. The essential steps for moving your business PCs to Windows 11.
Read the guide →GuidesMicrosoft Intune: An Overview for Businesses
Managing and securing laptops, phones and tablets, deploying apps and protecting company data from one place.
Read the guide →FAQs
Questions Sussex businesses ask us
Quick answers about our IT support, cyber security and AI services.
What IT support does ABCOM provide in Sussex?
ABCOM provides managed IT support, cyber security, Microsoft 365 support, Cyber Essentials certification, AI readiness, business broadband and leased lines, phone systems and VoIP, and secure IT recycling for businesses and charities across Sussex, from our base in Burgess Hill.
Which areas of Sussex do you cover?
We support businesses in Burgess Hill, Haywards Heath, Crawley, Brighton and Hove and across Mid, West and East Sussex, with on-site visits locally and remote support for clients elsewhere in the UK.
Are you an NCSC Assured Service Provider?
Yes. ABCOM is an NCSC Assured Service Provider, which means our cyber security services have been assessed against the standards of the UK’s National Cyber Security Centre.
Can you help us get Cyber Essentials?
Yes. We check you against the latest Cyber Essentials requirements, including the stricter April 2026 rules on MFA and 14-day patching, fix any gaps and guide you through assessment for Cyber Essentials or Cyber Essentials Plus.
Can you help us use AI and Microsoft Copilot safely?
Yes. Our four-week AI Readiness Sprint reviews how AI is already used in your business (including shadow AI), secures Microsoft 365 and permissions, writes your AI policy and gives you a prioritised Copilot and AI roadmap.
Do you work with charities?
Yes. We support charities across Sussex with IT support, cyber security, Microsoft 365 and Cyber Essentials, with practical advice that fits limited budgets and volunteer teams.
How long has ABCOM been in business?
ABCOM has been supporting businesses since 1996, so we bring 30 years of experience in business IT, cyber security, telecoms and connectivity.
How do we get started?
Book a free IT review or call us on 01444 871200. We’ll start with a conversation about your business and what isn’t working, then show you practical options, with no obligation.
Ready to Make IT One Less Thing to Worry About?
Let’s talk.
We’ll start with a conversation, not a commitment — and show you what stress-free IT really looks like.