At what stage of the M&A process should technical due diligence be conducted?

July 21, 2025

In the dynamic landscape of Mergers & Acquisitions (M&A), a thorough understanding of a target company's technological foundation is not merely advantageous—it's absolutely critical for deal success. Technical Due Diligence (TDD), a specialized and in-depth analysis of an organization's technological health, plays an indispensable role. For both buyers and sellers, knowing when to conduct this crucial evaluation can profoundly impact outcomes, from valuation to seamless post-acquisition integration.

Understanding the M&A Lifecycle and Due Diligence

Due diligence, in its broadest sense, is the process of meticulously examining and verifying information before committing to a significant decision or transaction. In M&A, it serves as an exercise in risk mitigation, allowing acquirers to gain an objective overview of the target company's strengths, weaknesses, and potential risks. This comprehensive investigation ensures that the buyer makes an informed decision, validates valuations, and can effectively negotiate deal terms. Common due diligence areas include financial, legal, operational, social, ethical/compliance, and RSE (Corporate Social Responsibility) aspects.

The typical M&A process unfolds in several stages:

Assessment and Preliminary Review: This initial phase involves the vendor publishing an information memorandum to gauge market interest. Interested purchasers then typically sign a Non-Disclosure Agreement (NDA) to secure confidential data before proceeding.

Due Diligence: This is the core investigative phase.

Negotiations and Closing: Terms are finalized based on due diligence findings.

Post-Closure Integration/Implementation: The acquired entity is integrated into the buyer's operations.

The Strategic Timing of Technical Due Diligence

For a strategic, value-maximizing M&A transaction, Technical Due Diligence should be initiated as early as possible. Specifically, this comprehensive evaluation should typically commence after initial interest and intent are formally expressed, usually following the signing of a Letter of Intent (LOI) or a Non-Disclosure Agreement (NDA). While preliminary due diligence, conducted before a Non-Binding Offer (NBO), might be superficial to detect blocking points, the detailed TDD occurs once the "data room" of documents is opened.

The critical timing for TDD is before finalizing any agreements or transactions. This proactive approach is essential for uncovering potential hidden risks, assessing scalability, validating claims about technological prowess, and ensuring the target's technology aligns with the acquiring entity's strategic objectives. A thorough TDD process typically spans between 30 to 60 days, offering a vital window for informed decision-making. Ignoring or delaying this step can lead to significant post-transaction surprises and costly issues.

Key Components and Focus Areas of Technical Due Diligence

Read more about content of a TDD in our knowledge base, or check this post about the pillars of a good DD

Benefits of Proactive Technical Due Diligence

Conducting TDD diligently offers several compelling benefits:

Cost Savings and Risk Mitigation: By identifying technical risks and hidden issues like outdated systems, security vulnerabilities, or technical debt early on, businesses can avoid significant post-transaction costs and mitigate surprises. This can reduce project expenses by up to 20%.

Informed Decision-Making: TDD provides crucial insights and an unbiased evaluation of a company's technical operations, empowering investors and acquirers to make well-informed decisions regarding the acquisition price, deal terms, and potential integration challenges.

Strategic Positioning and Competitive Edge: Highlighting a robust technological landscape and strong competitive advantages through TDD can make a business more attractive to investors and strengthen its position in negotiations or partnerships.

Smoother Integration: For mergers, TDD assesses the compatibility of technologies, ensuring a smoother integration process post-acquisition. It also helps in aligning the target's technology roadmap with the acquirer's strategic objectives.

Preparing for Technical Due Diligence: A Roadmap to Success

To ensure a smooth and successful TDD process, preparation is paramount. Companies should conduct an internal audit beforehand to identify their technology's key components, features, and limitations, preparing them for external scrutiny.

Key preparation steps include:

Gathering and Maintaining Documentation: This involves compiling all relevant technical documentation, such as IT architectural descriptions, infrastructure specifications, development code bases, backup and recovery facilities, and development procedures. Using a secure cloud platform or virtual data room for storing and sharing these files is highly recommended to maintain confidentiality.

Preparing Key Personnel: Ensure that technical directors, project managers, and other key personnel are well-briefed and ready for interviews, able to explain their technology choices, company culture, and internal policies.

Transparent Reporting: Be transparent in all stages, providing clear audit trails and executive summaries that highlight key findings and recommended action steps for decision-makers.

Seller-Side Due Diligence (VDD): For sellers, performing VDD proactively can present information uniformly, identify potential "deal breakers" early, and minimize the impact on management's daily operations, potentially accelerating the transaction process.

In essence, Technical Due Diligence is not just a checklist; it's a strategic imperative that empowers all parties in an M&A transaction to make well-informed decisions, mitigate risks, and build a solid foundation for future growth and innovation.