Operational Due Diligence Checklist: Key Areas for M&A Deal Teams

Financial due diligence tells you what the target earned. Operational due diligence tells you whether those earnings are sustainable. Without operational context, the quality of earnings analysis is incomplete.

Operational diligence identifies risks embedded in the target's processes, systems, and infrastructure. These risks affect post-close performance and integration costs. They also feed directly into EBITDA adjustments when operational inefficiencies are masking true run-rate costs.

Supply Chain and Procurement

The supply chain drives cost of goods and operational continuity. Key areas to assess:

Supplier concentration. Identify suppliers that represent more than 10% of total procurement spend. Single-source dependencies create risk. Assess substitutability and lead times for critical inputs.

Contract terms. Review key supplier contracts for pricing mechanisms, volume commitments, change of control provisions, and termination rights. Post-close, the buyer may lose favorable terms.

Inventory management. Analyze inventory turns, obsolescence rates, and warehouse utilization. Slow-moving inventory ties up working capital and may require write-downs.

Logistics and distribution. Assess the distribution network, freight costs, and delivery performance. Third-party logistics dependencies should be documented.

Facilities and Assets

Physical assets underpin the target's productive capacity:

Facility condition. Age, maintenance history, and capital expenditure requirements for each facility. Deferred maintenance represents future cash outflows.

Capacity utilization. Current utilization relative to theoretical capacity. Underutilization suggests excess fixed costs. Overutilization suggests capacity constraints that limit growth.

Capital expenditure needs. Distinguish between maintenance capex (required to sustain current operations) and growth capex. The quality of earnings analysis should reflect maintenance capex as a recurring cost.

Regulatory compliance. Environmental permits, health and safety compliance, and zoning restrictions. Non-compliance creates contingent liabilities.

Technology and Systems

IT infrastructure supports operations and can create significant integration risk:

ERP and core systems. Age, functionality, and scalability of the target's ERP system. Outdated systems require post-close investment. Understanding the target's systems is essential for ERP data extraction during the diligence process itself.

IT infrastructure. Hardware age, network architecture, cloud adoption, and disaster recovery capabilities.

Cybersecurity posture. Security controls, incident history, and compliance with data protection regulations.

Technical debt. Custom integrations, unsupported software, and workarounds that will need to be addressed post-close.

Workforce and Organization

The target's workforce is often its most important and most volatile asset:

Key person dependency. Identify individuals whose departure would materially impact the business. Assess retention risk and the cost of retention packages.

Organizational structure. Spans of control, reporting lines, and management depth. Flat organizations may lack middle management needed for scale.

Labor relations. Union contracts, collective bargaining agreements, and pending labor disputes. Review terms of any works council arrangements in European targets.

Compensation structure. Base salary, bonus plans, equity compensation, and benefits. Compare total compensation to market benchmarks. Below-market compensation suggests retention risk. Above-market compensation suggests add-back opportunity.

Processes and Controls

Operational processes determine execution quality:

Standard operating procedures. Existence, currency, and adherence to documented processes. Businesses that run on tribal knowledge carry key person and execution risk.

Quality management. Quality control processes, defect rates, and customer complaint trends. Certifications (ISO, FDA, etc.) and their maintenance requirements.

Customer service. Support infrastructure, response times, and satisfaction metrics. Customer service quality directly affects revenue retention.

Regulatory compliance. Licenses, permits, and certifications required to operate. Expiration dates and renewal requirements.

Integration Readiness

Operational diligence should assess the target's readiness for integration:

Systems compatibility. Can the target's systems integrate with the buyer's platform? What is the estimated cost and timeline?

Process alignment. Where do the target's processes differ from the buyer's? What is the effort to harmonize? This is particularly relevant in carve-out transactions where the target is separating from a larger organization.

Cultural fit. Management style, decision-making processes, and organizational culture. Significant misalignment increases integration risk and employee turnover.

Translating Findings to Financial Impact

Every operational finding should be quantified where possible. Deferred maintenance translates to capex requirements. Key person risk translates to retention bonus costs. System upgrades translate to IT investment. Process inefficiency translates to margin improvement opportunity.

Teams that maintain structured documentation through a clear audit trail ensure that operational findings are traceable and defensible when they flow into the financial diligence report.

The operational diligence checklist is not a standalone exercise. It informs the quality of earnings, the net debt bridge, and the integration plan. The best deal teams treat operational and financial diligence as a single, coordinated effort.