AI agents
Agents that watch the queue, draft the first reply, and pass a person the cases that need one. Useful automation, not a chatbot parked on the homepage.
Fast, friendly
IT support
& tech
services
AI agents, private AI and custom software, with the IT support to keep them running. Websites, Wi-Fi and phones when those are part of the same job.
100+
Reviews from around the world
When tech breaks, business stops.
OUR APPROACH
Downtime, slow Wi-Fi, security scares, mysterious errors — we have seen them. With CULLEN.TECH you get higher uptime, a faster response, proactive protection, and one partner for everything.
Working with CULLEN.TECH means someone is already watching, so the strategy of the day is not “wait and see if it comes back”.
Support built on speed and plain English.
Who we are
CULLEN.TECH is a UK team looking after IT for businesses that do not want a ticket black hole. We are invested in the boring result: people working, sites loading, phones ringing the right desk.
Worldwide cover, with same-day slots for phone calls and remote support. On Performance, a critical issue is answered within an hour — that is as fast as we promise.
The CULLEN.TECH advantage
One desk for AI, custom software and the IT around it. The smaller jobs — web, Wi-Fi, phones — sit on the same invoice when you need them.
How we keep the business moving
Explore all capabilities
Private AI
An assistant that answers from your own files — policies, tickets, course notes, the shared drive — and does not hand those files to a public model.
Custom software & apps
When the spreadsheet has become the business, we design the system that should have replaced it. Internal tools, client portals and apps built around the work.
Education & universities
Timetables, attendance, course tracking and the admin around them. Software shaped for a faculty, not a generic import with your logo on it.
Workflow automation
The step before an agent. A form that files itself, an approval that moves, two systems that finally talk to each other.
Managed IT Support
Monitoring, patching, device care and a helpdesk that answers by phone or remote session. Problems get caught before the office feels them.
Rescue
A site, an app or a faculty tool that someone else built and then left. We take it over, say what is actually wrong, and fix the part that is costing you.
Cybersecurity & Backups
MFA, endpoint protection, off-site backups and restore tests. Security that holds up without slowing the day down.
Moves
Email, files and a whole office onto Google Workspace or Microsoft 365. Planned, then done, without a week of nobody being able to find anything.
Websites & Hosting
Fast, secure, SEO-ready sites — and someone to keep them that way after launch.
Wi-Fi & networking
Design, guest networks and failover. We stay on the line while it is set up.
Telephony & VoIP
Numbers, call flows, headsets and recording. Set up remotely, from £25 per user a month.
1h
Fastest critical response
100+
Reviews worldwide
99.8%
Performance uptime
1
Partner for everything
Our people
A UK team, wherever you are working
A UK team you reach by phone or a remote session, wherever you are working. Same-day slots are for calls and remote support.
Clear plans. No long contracts.
Priced by users and devices. Every plan includes monthly reports, a written SLA and no-surprise billing. Tell us the shape of the office and we will quote it.
Core
8h
Critical response
Email support · 8am–6pm
99.5% uptime
- Monthly health report
- Patch and device care
- Helpdesk by email
- Backup monitoring
Growth
4h
Critical response
Phone and email · 8am–6pm
99.7% uptime
- Everything in Core
- Phone support
- Remote sessions
- Quarterly review
Performance
1h
Critical response
Phone, email and chat · 8am–8pm
99.8% uptime
- Fastest response we offer
- Dedicated manager
- Chat through the day
- Proactive recommendations
Bespoke
Best valueQuote
Built around the work
Remote by default · worldwide
Software, AI and multi-site
- Custom software and apps
- AI agents
- Education systems
- One invoice
Choose a plan and the note we draft will name it. Pricing follows users and devices — nothing here is a surprise monthly figure.
Ready for stress-free tech?
Client notes · what people actually say
5.0
100+ reviews
“CULLEN.TECH transformed our IT setup. Fast response, clear communication, and everything just works now.”“Finally, IT support that understands business needs. They've saved us hours of downtime and stress.”“Professional, friendly, knowledgeable and efficient. Exactly what we needed for our growing business.”
Notes from the support desk
View all articlesOperations—12 September 2026
An hour of downtime costs more than a year of support
Read articleAI—2 October 2026
AI agents for the work nobody should still be typing
Read articleEducation|18 September 2026
Software for a faculty, not a logo on someone else's product
Read articleNetworks|28 August 2026
Wi-Fi that still works when the office is full
Read articleTrusted by teams who cannot afford a quiet outage
- Agencies
- Law
- Hospitality
- Retail
- Home offices
- Professional services
A walkthrough, on your own systems
We do not keep a glossy showreel. The useful version is thirty minutes on your network: what is fragile, what we would watch, and what a normal month of support looks like.