Full buy-side packages often cost $50K–$150K and take weeks. Start with a $49 structured public-info report to kill bad targets early and focus capital on winners.
Order Buyer DD Report — $49 Read a free sampleAcquisition due diligence is the comprehensive investigation a buyer conducts on a target company before completing an acquisition. It spans financial performance, legal standing, market position, operations, technology, and risk exposure — all designed to answer two questions: Is this company worth the price we are paying? and What could go wrong after we close?
It is the single most important risk-management step in any acquisition. Skip it or cut corners, and you join the 50–70% of acquisitions that fail to create shareholder value. Do it well, and you either close with confidence — or walk away before the damage is done.
Acquisition diligence is broader and deeper than general due diligence. It specifically targets the risks of owning and operating the business post-close: integration costs, cultural fit, customer retention, talent flight, regulatory compliance, and the sustainability of the financial model.
The process has two main phases. Pre-LOI diligence (before signing a Letter of Intent) is rapid screening to decide whether to pursue the deal. Confirmatory diligence (after the LOI, during exclusivity) is the deep investigation with full data room access, third-party advisors, and quality of earnings analysis. Learn more about pre-LOI diligence →
McKinsey research shows that 50–70% of acquisitions fail to create value for the acquiring company shareholders. The primary causes are all things diligence should catch:
A failed acquisition is not just the purchase price. You have also paid investment banking fees (1–2% of deal value), legal fees ($200K–$2M+), accounting fees ($100K–$500K), and internal team time (thousands of hours). A busted deal at the LOI stage costs $100K–$500K. Discovering problems after close can cost the entire acquisition price plus integration costs.
Get a 40+ source report covering financials, legal history, market position, competitive landscape, and risk signals — before you commit.
Order a Report — $49Initial investigation using public data, the CIM (Confidential Information Memorandum), and management presentations. Goal: decide whether to pursue. Check for deal-killing red flags, validate high-level financials, assess strategic fit. Full pre-LOI guide →
After LOI, assemble the deal team: internal analysts, legal counsel, accounting advisors, and specialist consultants. Create a diligence workplan with specific information requests, timelines, and owners. Set up the virtual data room.
The deep dive. Full data room review, quality of earnings analysis, legal document review, customer reference calls, site visits, IT systems audit, and environmental assessments. This is where most issues surface.
Synthesize all findings into a final diligence report. Categorize each risk as deal-killing, material-but-manageable, or minor. Recommend price adjustments, reps & warranties, escrow amounts, and closing conditions.
Use diligence findings to negotiate final terms. Structure the purchase agreement with appropriate protections. Set up post-close integration plan and 100-day plan. Close the deal.
Every acquisition requires a tailored approach, but these are the core areas every deal team investigates:
100+ due diligence questions across 6 categories, each tagged by risk level with expert commentary on why it matters.
View 100+ DD QuestionsThese are the issues that most frequently derail acquisitions. Each one can be caught with proper diligence — or missed at enormous cost.
The seller adjusted EBITDA includes one-time gains, owner add-backs, and non-recurring revenue. True run-rate EBITDA is 20–40% lower. Always demand a quality of earnings report from an independent accountant.
One customer represents over 30% of revenue. If that account leaves post-close (and they often do when the founder departs), the business is immediately impaired. Check contract terms, renewal history, and personal relationships.
Active or threatened lawsuits not disclosed in the CIM. Search PACER, state courts, and regulatory databases. Undisclosed litigation signals deeper integrity issues with the seller.
Revenue recognized prematurely, using aggressive policies, or pulled forward via contract changes. Compare revenue under old and new policies. Look for unusual spikes in Q4 or the final pre-close quarter.
The founder or CEO is the primary salesperson, product visionary, and relationship holder. No #2 exists. Post-close retention risk is extreme. Structure aggressive earnouts and non-competes.
Legacy systems, undocumented code, no CI/CD pipeline, critical features held together by one engineer. Technology diligence reveals millions in post-close rebuild costs that were not in the model.
One supplier for a critical component, no qualified second source, long lead times. A disruption post-close can halt production and wipe out months of EBITDA.
Material contracts with change-of-control termination rights. Key customers or partners can walk away immediately post-close. Review every contract over $100K in annual value.
The target culture is fundamentally incompatible with the acquirer. Integration is slow, talent leaves, productivity drops. Harder to quantify but responsible for many failed integrations.
Defined benefit pension plans or post-retirement health obligations that are significantly underfunded. These become the buyer liability at close and can add millions to the effective purchase price.
| Dimension | Traditional Approach | proprietary-algorithm (dodilligence) |
|---|---|---|
| Pre-LOI screening | 1–4 weeks | < 1 hour |
| Full confirmatory diligence | 30–90 days | Days (data room still needed for deep legal/financial) |
| Cost per target | $50,000–$500,000+ | $49 per report |
| Number of advisors | 4–10 specialists | 1 platform + your team |
| Sources checked | 10–30 (analyst-dependent) | 40+ (automated) |
| Time to first report | 2–6 weeks | Under 1 hour |
| Multiple target comparison | Sequential, weeks apart | Parallel, minutes apart |
proprietary-algorithm diligence platforms are fundamentally changing how acquirers approach target screening. Instead of spending weeks assembling a team and waiting for a first read, buyers can generate a comprehensive report covering 40+ data sources in under an hour.
This does not replace the deep confirmatory work — quality of earnings, legal document review, and customer interviews still require human experts with data room access. But it transforms the top of the funnel: screening 10 targets in the time it used to take to screen one, catching obvious red flags before spending on advisors, and entering confirmatory diligence already armed with a detailed intelligence dossier.
Screen 10+ targets in a day instead of a month. Compare side-by-side on financial health, market position, risk signals, and growth trajectory. Eliminate non-starters before spending on advisors.
AI pulls and normalizes financial data from public filings, press releases, and analyst reports. Instantly spot revenue recognition changes, margin compression, or unusual patterns that warrant deeper investigation.
Scan litigation databases, regulatory filings, news, and social media for risk signals. Surface lawsuits, regulatory actions, executive departures, and negative press that might not appear in the CIM.
AI maps the competitive landscape, market share, and differentiation. Understand how the target stacks up against rivals before committing — not after.
| Aspect | Pre-LOI Diligence | Confirmatory (Post-LOI) Diligence |
|---|---|---|
| Goal | Decide whether to pursue | Verify everything and finalize terms |
| Data access | Public data, CIM, management calls | Full virtual data room, site visits |
| Timeline | 1–4 weeks | 30–90 days |
| Cost | $5K–$25K (or AI: $49) | $50K–$500K+ |
| Team | 1–3 internal analysts | Full team: legal, accounting, IT, HR, env. |
| Output | Go/no-go recommendation | Final diligence report + SPA terms |
Comprehensive reports covering financials, legal, market position, competitive landscape, and 40+ data sources. No data room required.
Order a Report — $49Public-info pack with financials, risk register, and IC workplan. Code DI20-WELCOME → $39.20. Not legal or financial advice.
Order $39.20 → See sampleHow to value a company for acquisition — methods, QoE bridge, and deal checklist.