All systems operational · 342 days since last incident
UK private cloud · Microsoft specialists

The Modern Workplace, secured and hosted in the UK.

Hosted desktops, Microsoft 365 and 24/7 managed security — built for accountancy and legal firms who want to work faster without losing a minute of sleep over data.

  • 7,500+Active users
  • 99.99%App uptime
  • 99%Rated "great"
  • 24/7UK SOC

What do you need?

See how we've helped similar customers...

Reply within 2 working hours · UK-based specialists · No call centres

Accredited & partnered with
Built around you

IT that speaks your language.

Pick your world and we'll show you how HDUK shapes around it — the apps we plug into, the compliance we cover, and the people who already live in your stack.

Accountancy firms

Practices running Sage, CCH, IRIS & Thomson Reuters

You've outgrown the on-site Sage server, year-end is looming, and fee-earners expect to work from the train. We lift the whole practice into a UK-hosted Windows desktop — apps, printers, scanners and all — without a stressful weekend cut-over.

  • Year-end won't slow you downHorizontal scale for the January crunch — add compute for a month, drop it in February. You pay for what you use.
  • Client data never leaves the UKA compelling answer for every client DPA questionnaire — ISO 27001, Cyber Essentials Plus, UK-only datacentres.
  • Bookkeeper-to-partner, same experienceJunior staff on cheap laptops and partners on Surface Pros — same desktop, same apps, same performance.
  • Staff you can actually callSophie, Maya and the team have migrated 120+ accountancy firms. They know IRIS, Sage and CCH inside out — no ticket tennis.
Why firms switch to HDUK

Fewer IT fires. More billable hours.

HDUK clients see an average 30% productivity lift almost immediately — not from a mystical "transformation", but from boring things working reliably.

+30%productivity

Fast, reliable, same every time

Your people open Excel. It works. On any device, from anywhere. Files are where they left them. Nothing crashes, nothing sync-conflicts, nothing mysterious.

24/7SOC/SIEM

Always watching, never flashy

A UK security team monitoring your tenant around the clock. Alerts, blocks, evidence-logged responses — and a clear monthly summary you can take to your partners.

0jargon

Talk to humans, not tickets

Microsoft-certified engineers on UK lines. No chatbot mazes, no "please hold", no offshored tier-one. Pick up the phone and sort it.

Why HDUK

Behind the technology, it's our people that make the difference.

We put people at the heart of a technical business. Expert humans on UK lines. Genuinely calm. Genuinely helpful.

01 / People-first support

Microsoft-certified engineers who know your apps.

Sage, CCH, IRIS, Thomson Reuters, Xero — the specific tools professional firms run on. Faster resolution because we've seen your problem before, usually last Tuesday.

02 / Industry-leading security

Your data, kept safe 24/7, 365.

SOC/SIEM monitoring, MFA, device management, DLP — configured properly from day one, not just "enabled". Monthly security summaries you can understand without a translator.

03 / No-jargon onboarding

Move without disruption, and without drama.

We do the heavy lifting, in evenings and weekends where it matters, and we tell you honestly what "might wobble" rather than promising a unicorn migration.

0
Active users
0
App uptime
0
Rated "great"
0
UK SOC cover
Managed SOC/SIEM

Threats, blocked before they reach your people.

Our UK SOC watches your Microsoft 365 tenant, endpoints and hosted estate around the clock. Below is a live sample of what that looks like on a typical Tuesday morning.

hduk-soc — live feed demo
Events today 0
Reality check

What does one day of downtime actually cost your firm?

Move the sliders. The numbers aren't fear-mongering — they're what we quietly protect firms like yours from, every week.

Estimate based on average UK professional-firm billing and published ICO incident data. Not a quote.

One working day offline
£27,200
Direct lost billable time alone.
Annualised risk (4 days/yr)£108,800
Estimated reputational impact£14,400
Protect against this
What clients say

99% of our last 100 customers rated us "great".

★★★★★
"HDUK migrated our 62-person practice over a weekend. Monday morning felt suspiciously normal — which, if you've done a platform move before, is the highest praise I can give."
Michael Trent, Managing Partner · 62-seat accountancy practice, Surrey
Case study
1 weekend

42-seat accountancy firm migrated with zero support tickets in month one.

We moved Collins & Ashworth from a tired on-prem server room to fully hosted desktops, Microsoft 365 Business Premium and managed SOC — finishing Sunday at 9 p.m., Monday opened to silence.

Read the full story
Next step

Get a tailored quote inside 24 working hours.

Leave your email, or pick a 20-minute slot with a UK specialist. Either way — no sales pressure, no generic pitch.

Thanks! We'll be in touch inside 24 working hours.
Or book a 20-min call →
Ready when you are

Call our UK team on 01883 333 155

Lines open Mon–Fri, 08:30–17:30. Or book a 20-minute call with a specialist — we reply within 2 working hours.