Acquiring another business is an exciting milestone—but it also brings a host of operational challenges, especially when it comes to IT. From integrating systems and securing data to ensuring compliance and minimising disruption, the technology side of an acquisition can make or break its success.

In this blog, we’ll walk you through what needs to change, when to act, and how to manage the transition smoothly.

Why IT is critical in any acquisition

Technology is the backbone of modern business. When two organisations come together, their IT environments must be aligned to:

• Ensure business continuity
• Protect sensitive data
• Avoid compliance breaches
• Realise the full value of the acquisition
• Ensure all staff work with unified systems

Overlooking IT integration can lead to duplicated systems, security vulnerabilities, and frustrated employees—none of which support a successful merger. Getting this right early helps ease the pressure of change across your workforce.

Key Considerations for IT During an Acquisition

1. Due Diligence

Before the deal is finalised, conduct a thorough IT due diligence assessment. This includes:

• Reviewing infrastructure, software, and licensing
• Identifying security risks or legacy systems
• Understanding data governance and compliance obligations

2. Technology Compatibility

Assess whether the acquired company’s systems are compatible with your own. Consider:

• Cloud platforms (e.g. Microsoft 365, Azure)
• Line-of-business applications
• Cyber security tools and policies

3. Compliance and Risk

Ensure both businesses meet regulatory requirements such as:

• GDPR and data protection laws
• Cyber Essentials or ISO 27001
• Industry-specific standards (e.g. FCA, PCI-DSS)

Your IT acquisition checklist

Pre-Acquisition

✅ Conduct IT due diligence
✅ Identify compliance risks
✅ Review contracts and software licences
✅ Assess cyber security posture
✅ Map out infrastructure and data flows

Day 1 Planning

✅ Establish secure communication channels between your teams
✅ Set up access controls and identity management
✅ Communicate IT changes to staff
✅ Begin data migration planning
✅ Appoint an integration lead or team

Post-Acquisition (First 90 Days)

✅ Consolidate systems and platforms
✅ Migrate users and data securely
✅ Decommission redundant infrastructure
✅ Update policies and documentation
✅ Conduct security audits and penetration testing

How to manage the change

Change management is just as important as technical execution. To ensure a smooth transition:

• Communicate early and often with both teams
• Provide training and support for new systems
• Engage an MSP to manage the integration and reduce internal strain

entrustIT have expert consultants with extensive experience in M&A. To ensure you get it right, our team can help you navigate the complex challenges that come with assimilating two organisations together.