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Transactions & Value Creation  ·  Shape Executive

Operational Due Diligence:
What Buyers Actually Look At

Operational due diligence is not a checklist exercise. It is a structured attempt to understand the gap between how a business presents and how it actually operates.

9 min read

Scott Foster  ·  Shape Executive  ·  Transactions & Value Creation

The Gap Between The Data Room And The Business

Every acquisition begins with a data room. Financial statements. Management accounts. Customer lists. Supplier contracts. KPIs. A quality of earnings report from an accounting firm that has reconciled the adjusted EBITDA bridge to management's satisfaction.

None of it tells a buyer how the business actually operates.

The data room is a representation of the business — organised, curated, and presented under conditions that are nothing like the conditions under which the business runs day to day. Operational due diligence exists to close that gap. To understand whether the business that appears in the data room is the same business that will show up on the first Monday after completion.

In most mid-market transactions that go wrong, the failure was already present in the operating environment before the deal closed. The management team was thinner than the org chart suggested. The production process depended on two people whose institutional knowledge was not documented anywhere. The major customer relationship was personal to the founder who was exiting. The ERP system that appeared stable was being held together by workarounds that no one had disclosed.

Operational diligence is the attempt to find these things before they become post-acquisition problems. The businesses that present well in operational diligence are those that have been built to operate transparently — not those that have been prepared to present well.

What Is Operational Due Diligence?

How Operational Diligence Differs From Financial Diligence

Financial due diligence asks: is the historical performance real? Its job is to confirm that the EBITDA is what it appears to be, that the adjustments are defensible, and that there are no material misrepresentations in the financial history.

Operational due diligence asks a different question: is the business capable of delivering future performance? Not what it has done, but whether the conditions exist for it to continue performing — and for the investment thesis to be achieved — after the transaction closes.

The two workstreams often run concurrently but they are looking at different things. A business can pass financial diligence with clean accounts and a credible EBITDA bridge while simultaneously failing operational diligence because the management team below the founder has no genuine decision-making authority, the production process has a single point of failure, and the working capital position reflects structural inefficiency that has been masked by supplier relationships that will not survive a change of ownership.

Both matter. But it is operational diligence that tends to reveal the things that most damage post-acquisition performance.

What Operational Due Diligence Actually Covers

The scope of operational diligence varies by transaction type, sector, and the sophistication of the buyer. But the core areas are consistent across most mid-market acquisitions.

Management depth and decision-making. Who actually makes decisions in this business, and at what level? The org chart shows reporting lines. Operational diligence tests whether those reporting lines reflect real authority or nominal authority. A management team that defers every significant decision to the founder is not a management team — it is a coordination layer. Buyers need to understand what happens to decision-making velocity when the founder exits.

Operational systems and processes. Are the core processes of the business documented, followed, and not dependent on the institutional knowledge of specific individuals? In manufacturing and industrial businesses, this assessment extends to throughput, yield, quality management, equipment maintenance disciplines, and whether the production environment is genuinely institutionalised or personality-dependent.

Customer and supplier relationships. Which relationships belong to the business and which belong to the founder? A customer who has bought from this person for twenty years is a fundamentally different asset from a customer whose relationship is anchored in a contract, a service model, and an account management structure that does not require the founder's involvement.

Financial reporting and management information. Does management have the information they need to run the business, and does it arrive at the cadence required to act on it? A business whose management accounts are produced six weeks after month-end is a business whose management team is flying partially blind. That is an operational risk.

Working capital management. Operational diligence examines the working capital position in detail — not just the level but the quality. Debtor days by customer. Inventory composition and turns. Creditor terms and the sustainability of those terms post-acquisition. Poor working capital management is both a cash flow issue and an indicator of operational discipline.

Technology and systems infrastructure. Are the operational systems — ERP, WMS, CRM, reporting — fit for purpose and capable of supporting the business at the scale the investment thesis requires? An ERP implementation that is twelve years old and running on a configuration that only one person understands is not a technology asset. It is a transition risk.

The businesses that present well in operational diligence are those that have been built to operate transparently — not those that have been prepared to present well.

What Do Buyers Find In Due Diligence?

The Most Common Operational Diligence Findings

Having been inside enough transactions — on both sides of the table — the findings that recur most consistently are not unusual. They are predictable, which is what makes them addressable by vendors who start early enough.

Management depth below the first line. The executive team presents well. They are capable, articulate, and have been in their roles long enough to know the business. But below them, the second and third layers of management are either absent or have not been given the authority to function independently. The executive team is managing the business — not managing managers who manage the business. This creates a fragility that becomes visible immediately after a change of control.

Founder-dependent customer relationships. The three largest customers represent sixty percent of revenue. The founder has personal relationships with the owners or procurement leads of each. None of these relationships have been systematically introduced to the account management team. In operational diligence, buyers test this by asking management — not the founder — to walk them through the status of each major account. The gaps are immediately apparent.

Undisclosed operational constraints. There is always something that does not appear in the information memorandum. A piece of capital equipment that is past its useful life and carrying ongoing maintenance cost as an expense. A supplier arrangement that depends on a personal relationship and whose terms would not survive a formal renegotiation. A quality issue that has been managed informally for years and has not been disclosed because it has never escalated. Operational diligence finds these things. The business that disclosed them voluntarily is in a materially better position than the one that did not.

Working capital mechanics misunderstood. Vendors who have not worked through the working capital mechanics of a transaction are routinely surprised by the completion adjustment. The normalised working capital target is set on the basis of what the business genuinely requires to operate. If the business has been operating with structural working capital inefficiency — extended debtor days, excess inventory, creditor terms that are more favourable than what a new owner will be offered — the target will be higher than the vendor expects.

Preparing For Operational Due Diligence

The most effective preparation for operational diligence is not preparation for diligence. It is building a business that can withstand scrutiny regardless of context — because it is genuinely well-run.

The specific actions that make the most difference: build a management team with real authority and test it over time. Document the core processes of the business — not as a diligence exercise but as an operational discipline. Transition customer relationships from the founder to the business systematically, before any process begins. Get on top of the working capital position and understand the mechanics of how it will be treated at completion. Invest in reporting infrastructure that gives management the information they need to act, not just the information they need to present.

Vendors who do these things are not just better prepared for diligence. They are building a more valuable, more transferable business — which is the point.

Frequently Asked Questions

What is operational due diligence?

Operational due diligence is a structured assessment of how a business actually operates — its processes, systems, people, customer relationships, and the gap between how it presents and how it performs. It runs alongside financial and legal diligence in most private equity and strategic acquisitions. Its purpose is to assess whether the business is capable of delivering future performance, not just whether the historical performance is real.

How do I prepare for operational due diligence?

The most effective preparation is building a business that operates well regardless of external scrutiny. That means a management team with genuine authority, documented operational processes, customer relationships that belong to the business rather than the founder, clean working capital management, and reporting infrastructure that gives management the information they need to act. These cannot be assembled in the months before a process — they are built over years.

What do buyers find in operational due diligence?

The most common findings are management depth below the first line, founder-dependent customer relationships, undisclosed operational constraints (aging equipment, fragile supplier arrangements, quality issues), and working capital positions that are more complex than the vendor understood. Each finding becomes a negotiating point — on price, structure, or deal conditions. Businesses that have addressed these issues in advance go into that negotiation from a stronger position.

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What Private Equity Looks For When Buying A Business → Founder Dependency Is A Valuation Problem → The Sale Process Begins Years Before The Sale → What Buyers Mean By Management Depth → When A Founder Should Hire A CEO → Operational Due Diligence — Full Pillar →

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