When a Manchester business acquires another company, financial and legal due diligence get all the attention. Accountants pour over the numbers; solicitors scrutinise the contracts. IT due diligence — the structured review of a target company’s technology estate before a deal completes — rarely gets the same focus, and that is a costly mistake.
Infrastructure surprises, unlicensed software, lapsed cybersecurity controls, and inherited data liabilities have derailed or significantly repriced acquisitions across Greater Manchester. The fix is straightforward: make IT due diligence a mandatory part of every deal, not an afterthought.
What Is IT Due Diligence?
IT due diligence is a technical audit of a target company’s technology infrastructure, software licences, cybersecurity posture, and data practices, carried out before a business acquisition or merger completes. Its purpose is to identify hidden costs, risks, and liabilities before you sign.
A proper IT due diligence process produces a written report with a risk register: critical issues, significant concerns, and advisory items — each with a remediation cost estimate that the deal team can factor into the transaction price or use as a pre-completion condition.
Why IT Gets Overlooked in Acquisitions
Most acquisition deals move fast. There is pressure to close, advisers are juggling multiple workstreams, and IT gets a ten-minute slot at the end of a board meeting. By then, the deal is emotionally done and no one wants to hear about server room problems.
Smaller deals — the kind that happen frequently across Sale, Salford, Trafford, and the wider Manchester area — are particularly prone to skipping IT review entirely. The assumption is that a small business cannot have complex IT. In reality, even a 10-person business can be running on expired licences, a server that has never been backed up, and admin credentials known only to the previous owner.
What IT Due Diligence Covers
A thorough IT due diligence engagement covers several interconnected areas. Each one has the potential to surface material issues.
Infrastructure and Hardware Audit
The starting point is a complete inventory of what the business actually runs on:
- Physical and virtual servers — age, condition, end-of-life status
- Network infrastructure: switches, firewalls, access points
- Hosting and colocation arrangements, and who holds those contracts
- Connectivity: ISP contracts, speeds, and redundancy
- Hardware replacement cycles and upcoming capital expenditure
It is common to find hardware running well past its recommended lifespan in Manchester SMEs. A server bought in 2016 that is “still working fine” is a ticking clock, not an asset.
Software Licences and Contracts
Licence compliance is one of the most financially significant areas of IT due diligence. Common issues include:
- Software deployed without valid licences
- Microsoft 365 or Google Workspace licences tied to the outgoing owner’s personal account
- Line-of-business applications with non-transferable licences
- Bespoke software where IP ownership is unclear
- SaaS subscriptions on annual contracts with auto-renewal clauses
Each of these has a cost. Some are relatively minor; others — such as discovering the ERP system licence dies with the previous owner — are deal-critical.
Cybersecurity Posture
This is where IT due diligence earns its keep. Before acquiring any business, you need to understand its security baseline. Ask to see:
- The most recent penetration test report — and whether the findings were remediated
- Patch status across all endpoints and servers
- Multi-factor authentication adoption rates
- Endpoint detection and response tooling
- Any Cyber Essentials or ISO 27001 certification
- Known incidents, breaches, or ICO complaints
A weak cybersecurity posture in an acquisition target is not just a technical problem. It is a financial liability you are about to inherit. Our cybersecurity team can carry out a thorough assessment as part of an IT due diligence engagement.
Data Compliance and GDPR
When you acquire a business, you inherit its data — including all associated GDPR obligations and any latent liabilities. Review:
- What personal data the business holds, where it lives, and how it is protected
- Data retention and deletion policies
- Privacy notices, consent records, and data processing agreements
- Any active ICO investigations or subject access requests
- Data stored on personal devices or in personal cloud accounts
GDPR liabilities can be significant. Fines aside, the reputational cost of inheriting a data breach notification obligation post-completion is not something any Manchester business needs.
IT Staff and Knowledge Transfer
In many smaller businesses, the IT estate is only fully understood by one person — sometimes the owner themselves. Before completing an acquisition, establish:
- Who holds admin credentials, and where they are documented
- Whether the IT support contract can be novated to the new owner
- What supplier relationships are tied to the existing owner personally
- Whether there is a functioning IT knowledge base or asset register
The absence of documentation is not a minor inconvenience. It can mean weeks of investigative work post-completion just to understand what you have acquired. Our business IT support team has worked through this process with Manchester acquirers on multiple occasions.
The Manchester Business Reality
Businesses acquiring companies across Sale, Salford, Stockport, and the wider Greater Manchester area frequently encounter the same patterns:
- IT estates built on personal accounts — OneDrive or Google Drive tied to the owner’s personal email
- No documented admin credentials for routers, firewalls, or servers
- Physical servers past end-of-life sitting in a back office, working well enough that nobody has questioned them
- Security shortcuts that made sense when the business was three people — but have never been revisited since
None of these are necessarily deal-breakers. All of them are fixable. But only if you know about them before you sign.
How Long Does IT Due Diligence Take?
For a business with 10 to 50 users, a thorough IT due diligence review typically requires three to five days of technical assessment. Larger estates, complex multi-site infrastructure, or businesses in regulated sectors — financial services, healthcare, legal — will take longer.
The process involves a combination of remote access review, on-site assessment where needed, and interviews with IT-responsible staff. The deliverable is a written report with a prioritised risk register and cost estimates for each identified issue.
Start early. IT due diligence running in parallel with legal and financial workstreams keeps the timeline on track. Leaving it to the final week creates pressure to skip or abbreviate the review — which defeats the purpose entirely.
What Happens If You Skip It?
The consequences of skipping IT due diligence typically arrive in the weeks and months after completion:
- Discovery that key software licences are non-transferable, requiring urgent replacement
- Inherited hardware failures that were not priced into the acquisition
- Post-completion security incidents that trace back to vulnerabilities in the acquired estate
- Months of integration delays caused by undocumented systems and missing credentials
We have seen all of these in Manchester. Each one was avoidable with a pre-completion IT review.
Getting IT Due Diligence Support in Manchester
PC Express IT provides IT due diligence services for acquisitions and mergers across Greater Manchester, Sale, and the North West. We work alongside your legal and financial advisers to deliver a clear, actionable report that the deal team can use immediately.
The report covers all areas outlined above and includes a risk register with remediation cost estimates. It is designed to be read by a non-technical MD or FD as well as an integration project manager.
If you are planning an acquisition and want to understand what IT risk you are taking on, get in touch. We will give you an honest assessment of what is involved and a realistic timeline, without the sales pitch.
Our IT support and cloud services teams can also assist with post-acquisition integration once due diligence is complete — from migrating email accounts to consolidating infrastructure across the combined business.
Frequently Asked Questions
What is IT due diligence in a business acquisition?
IT due diligence is a structured technical audit of a target company’s IT infrastructure, software licences, cybersecurity posture, and data practices, carried out before a business acquisition or merger completes. Its purpose is to identify hidden costs, risks, and liabilities before you commit to the deal.
How much does IT due diligence cost for a small business?
For a business with 10 to 50 users, IT due diligence typically costs £1,500 to £5,000 depending on complexity, size, and the number of sites involved. That cost is modest relative to a typical deal value and the financial exposure it can uncover — particularly around unlicensed software, security liabilities, and GDPR risks.
What are the most common IT issues found in Manchester business acquisitions?
The most frequently identified issues include software licences tied to the outgoing owner personally, hardware that is past manufacturer end-of-life, absent or inadequate cybersecurity controls, undocumented admin credentials, and personal cloud accounts used for business-critical data. All are fixable; the key is knowing about them before completion rather than after.
When should IT due diligence happen in the deal process?
Ideally, a high-level IT risk assessment should take place before heads of terms are agreed, so any major issues can influence the deal price or structure. A full IT due diligence report should then be completed as part of formal due diligence, running in parallel with legal and financial workstreams — not left until the final week before exchange.
What is included in an IT due diligence report?
A thorough IT due diligence report covers infrastructure and hardware inventory, software licences and contract transferability, cybersecurity posture, data compliance and GDPR obligations, cloud and SaaS dependencies, IT staff and knowledge transfer risks, and a prioritised risk register with estimated remediation costs for each identified issue.
Can IT due diligence identify cybersecurity breaches in the target business?
IT due diligence can identify indicators of past security incidents, such as unpatched systems, compromised credential exposure, misconfigured security controls, and historical vulnerability patterns. A full forensic investigation is a separate engagement if active compromise is suspected, but IT due diligence will surface the conditions that make a breach likely.
Do Manchester SMEs need IT due diligence for small acquisitions?
Yes — smaller acquisitions are often where IT due diligence is most valuable. Smaller businesses are less likely to have structured IT documentation, licensed software audits, or formal cybersecurity controls. The risk of inheriting undocumented liabilities is higher, not lower, in smaller deals. PC Express IT works with acquirers across Greater Manchester and Sale on acquisitions of all sizes.
