PE Due Diligence Programme — Lesson 10 of 10
Theory is essential. Frameworks are indispensable. But nothing teaches like real transactions. This final lesson presents three anonymised case studies drawn from actual PE deals — each illustrating how intangible asset diligence (or its absence) directly determined the outcome. The names, sectors, and specific figures have been changed to protect confidentiality, but the dynamics, the mistakes, and the lessons are real.
These cases span the spectrum: a deal where comprehensive intangible diligence saved the fund from a costly mistake, a deal where superficial diligence led to a significant write-down, and a deal where intangible asset assessment during diligence created value that the seller had not recognised.
Intangible asset diligence is not an academic exercise — it is a deal-shaping discipline. In each of these case studies, the intangible assessment findings either changed the price, changed the structure, or changed the decision. The lesson is consistent: the funds that invest in rigorous intangible asset diligence consistently outperform those that treat it as a box-ticking exercise. The cost of proper diligence is measured in thousands. The cost of getting it wrong is measured in millions.
Case Study 1: The Hidden Concentration
Deal: Mid-market PE acquisition of a UK B2B software company
The Opportunity
A lower-mid-market PE fund identified a B2B software company ("TechFlow") as an attractive platform acquisition. TechFlow had built a compliance management platform for the financial services sector over 12 years, growing to $18 million ARR with 85% gross margins. The company was founder-led, profitable, and appeared to have a loyal customer base. The seller was seeking 10x ARR ($180 million).
The Standard Diligence
Financial diligence was thorough: revenue was recurring, margins were stable, and growth had averaged 15% per year for the past four years. Commercial diligence confirmed the regulatory compliance software market was growing at 12% annually. Legal diligence found clean IP ownership and no pending disputes. The deal team was enthusiastic.
The Intangible Diligence
The fund deployed a structured intangible asset assessment across all seven CHS categories — the checklist from Lesson 2. Three critical findings emerged:
Finding 1: Extreme customer concentration, disguised. Revenue analysis showed that no single customer exceeded 8% of ARR — apparently well-diversified. But intangible diligence went deeper, analysing customer relationships at the group level. TechFlow's customers included 14 subsidiaries of three large financial services groups. When consolidated, those three groups represented 52% of revenue. And all three were on the same enterprise framework agreement — a single contract that was renewable annually with 90 days' notice and included a change-of-control termination right.
Finding 2: Founder knowledge monopoly. The founder had personally architected the core compliance rules engine — the algorithmic heart of the product. This engine had never been documented, and no other engineer fully understood it. The founder was 61 years old and had expressed interest in retiring within 2 years. A key person dependency assessment (per Lesson 4) rated this as critical risk.
Finding 3: Regulatory tailwind was ending. Deep commercial diligence revealed that 40% of TechFlow's growth over the past 3 years had been driven by a specific regulatory change (MiFID II implementation) that was now largely complete. The next growth driver — ESG reporting requirements — required a fundamentally different product capability that TechFlow had not yet built.
The Outcome
The fund presented its findings to the investment committee with a revised valuation model:
Valuation Impact of Intangible Findings
| Finding | Impact on Valuation | Mechanism |
|---|---|---|
| Customer concentration (group-level) | -20% ($36M reduction) | Concentration discount applied to customer relationship value; change-of-control risk priced |
| Founder knowledge monopoly | -8% ($14M reduction) | Retention cost + knowledge transfer investment + risk of failure |
| Regulatory growth deceleration | -12% ($22M reduction) | Growth rate reduced from 15% to 8% in years 3-5; R&D investment required for ESG capability |
| Total adjustment | -$72M | Revised offer: $108M (6x ARR) vs. $180M (10x ARR) |
The seller rejected the revised offer. The fund walked away. Six months later, TechFlow was acquired by a competitor at 7x ARR — validating the fund's revised assessment. Within 18 months, two of the three consolidated customer groups had consolidated their vendor relationships, and TechFlow lost $4.2 million of ARR.