Arundel, West Sussex • Since 2015
IT Support & Cyber Security for West Sussex Businesses
Fixed monthly managed IT support from our office in Arundel, for businesses across West Sussex. Monitoring, patching and security are included, and a named engineer who knows your setup usually picks up within fifteen minutes.
From £30 per user, per month. Rolling annual agreement, no per-ticket charges.See IT support packages and pricing →
2015Established
<15mResponse
98%First-contact fix
100+Clients
24/7Proactive monitoring
CertifiedCyber Essentials
What clients say
Rated 5.0 on Google by Sussex businesses.
★★★★★
We have been with ATS Connection for years and they have always been reliable. Fast, efficient, and they really know their stuff.
MichelleNorthgate PropertiesGoogle ★ 5.0
★★★★★
Their proactive IT support has saved us a lot of headaches. We can focus on growing our business knowing our IT is sorted.
VickyCallatech EngineeringGoogle ★ 5.0
★★★★★
ATS Connection has been a huge help. Whenever we run into IT issues, they are always there to resolve things quickly.
NicholasNorfolk Arms HotelGoogle ★ 5.0
What we do
A complete managed IT & security stack, from one West Sussex partner.
Everything you need to run modern, secure IT, proactively managed by a UK team that picks up the phone.
Business IT Support
Unlimited UK helpdesk, 24/7 monitoring and proactive maintenance for your entire IT estate.
24/7 Monitoring
Unlimited Helpdesk
Cyber Security
Cyber Essentials certified protection across endpoint, identity, email, firewall and staff awareness training.
EDR / MDR
Cyber Essentials
Microsoft 365
Microsoft Partner-led deployment of Teams, SharePoint, Exchange and Entra ID secured properly.
Teams
SharePoint
VoIP & Telecoms
Modern cloud telephony fully integrated with Microsoft Teams, broadband and mobile options.
Cloud PBX
Teams Calling
Backup & Recovery
Immutable backups and tested recovery plans to keep your business running through any incident.
Immutable Backup
Disaster Recovery
Cloud Services
Cloud infrastructure, secure remote working and lifecycle planning for modern regulated teams.
Azure
Remote Working
The ATS defence model
Cyber security is not a single product. It is six layers, working together.
Most breaches happen where one layer is missing. We design, deploy and maintain all six, then prove they work every quarter.
We do not sell tools. We run them every hour of every day on behalf of the businesses we look after.
Security Operations · Arundel
L1
People
Security awareness training, phishing simulations and a culture that asks before it clicks.
L2
Identity
MFA everywhere, Conditional Access and privileged-account hardening across Microsoft 365.
L3
Endpoint
EDR / MDR on every device, automated patching and 24/7 behavioural threat hunting.
L4
Email & Web
Inbound filtering, link rewriting, attachment sandboxing and DNS-layer protection.
L5
Network
Segmented firewalls, secure remote access and continuous traffic inspection.
L6
Recovery
Immutable backups, tested recovery plans and documentation that stands up under pressure.
How we work
How ATS proactively manages your IT.
A defined onboarding and management process designed to remove risk, eliminate downtime and give you a long-term IT partner, not just a number to call.
01
Discover & Audit
Free IT & Cyber Risk Review. We map your environment, expose risks and quantify what reactive IT is costing you.
02
Onboard & Harden
Seamless takeover with modern tooling, MFA, patch baselines and clear documentation.
03
Monitor & Protect
24/7 monitoring across endpoints, identity, network and Microsoft 365 backed by a UK helpdesk.
04
Improve & Plan
Quarterly reviews with roadmap, budgets, security posture and practical improvements.
24 / 7 / 365Live monitoring
3,200+Endpoints protected
HundredsSecurity incidents prevented monthly
Outgrown reactive IT?
Stop firefighting. Start operating securely.
Most growing businesses outgrow break-fix IT long before they switch. The cost shows up as downtime, security incidents and frustrated staff, not on the invoice.
ATS Connection delivers a fully managed alternative with a dedicated team, modern tooling, layered cyber security and a long-term roadmap built around your business.
Recurring downtime
Issues resurface because nothing is being managed proactively.
Growing security risk
Outdated tooling, missing MFA, untrained staff and no visibility.
Slow ad-hoc support
Tickets sit in a queue and no one owns your environment.
No long-term roadmap
IT is patched together rather than planned and budgeted.
1,847Helpdesk tickets resolved this month
UK-based engineers · Arundel, West Sussex
A premium managed IT partner, not just a support number.
Supporting growing Sussex businesses since 2015, with senior UK engineers, modern tooling and a genuine long-term partnership.
Proactive Support
We monitor, patch, harden and improve continuously to prevent issues before they impact your team.
24/7 monitoring · Quarterly reviews · Predictable monthly fee
Security-Focused
Layered defences across endpoint, identity, email, network and end-user awareness.
MFA & Conditional Access · EDR / MDR · Awareness training
Long-Term Partnership
Most clients stay with us for years because we plan, budget and grow alongside the business.
Dedicated account manager · Strategic roadmap · Senior UK engineers
We do not outsource. Every call is answered in Sussex by an engineer who already knows your network, your team and your business, because they built it with you.
Jake Boase
Director · ATS Connection
Industries we support
Built for regulated and professional businesses across Sussex.
From compliance-driven solicitors and accountants to fast-moving recruitment and construction teams.
Free • No obligation • Senior engineer • 30 minutes
Book a Free IT & Cyber Risk Review
A strategic 30-minute review with one of our senior engineers designed to expose
what reactive IT is really costing your business and exactly where to improve.
Not ready for a call? Take the free twelve-minute IT Security Review first and bring the report with you.
What you will get
- Identify hidden cyber security risks across your environment
- Quantify downtime and inefficiencies costing your business
- Audit Microsoft 365, backups, MFA and endpoint protection
- Receive proactive recommendations from a senior UK engineer
Book your free IT and cyber risk review
Tell us a little about your setup and we will arrange a time that suits. No obligation, and no hard sell.
Tell us what you need. It takes a minute.
A named engineer reviews it, not a call queue.
We reply within one working day with honest next steps.
Thanks, your message has been received.
From Gosport and Portsmouth to Brighton, and north to Horsham and Crawley, run from our offices in Arundel and Chichester. Pick your town for local details. Point at one to find it on the map.
Sussex IT support across Sussex →
Not listed here? See every area we cover.
- ATS office
- Town we cover
- Schematic, not to scale