Private equity firms rely heavily on models to guide their investment decisions, but most of these models can’t capture the human realities that drive those numbers: the customers themselves.
We know, after conducting hundreds of customer diligence projects, that the same blind spots appear in these models again and again.
These are not minor oversights. They’re critical dynamics that can make or break a deal.
What are some of the customer realities your traditional models are missing? Here’s the top four:
On paper, switching costs often appear sky-high. Management teams emphasize technical integrations, employee training requirements, or long-term contracts that supposedly lock customers in.
These assumptions feed a narrative of stability and justify premium valuations.
But in practice? Customers tell a different story.
Case in point: in one diligence engagement we delivered for a software business, management claimed it would take customers 6–12 months to switch.
Yet interviews revealed three major accounts were already running parallel systems with a competitor, simply waiting for contracts to expire before flipping the switch.
The deal quickly shifted from “stable and growing” to “fragile and risky.” The PE firm wisely walked away.
Takeaway: The stickiness you see in a spreadsheet may be far thinner in reality.
Traditional market analysis usually focuses on the visible suspects: known competitors, those who show up in analyst reports or head-to-head RFPs.
But customers often point to very different threats, ones management doesn’t even see.
Sometimes the competition is internal solutions customers are building in-house.
Sometimes it’s a new entrant from an adjacent market.
Sometimes it’s a substitute approach that doesn’t look like competition at all.
In one engagement with a visualization software provider, management touted a “sustainable partnership” with a major ERP system.
But customer and partner interviews revealed the ERP provider was quietly developing its own competing solution.
None of this surfaced in management presentations or industry reports, but the insight was devastating. Within five years, the target’s business model would be obsolete. The buyer pulled out.
Takeaway: The most dangerous competitors are often the ones you’re not even looking for.
Financial models love to assume steady price increases. If customers accepted 5% hikes the past three years, the thinking goes, surely they’ll accept more in the future.
But customer interviews often uncover a harsher truth: what looks like pricing power may actually be customer exhaustion.
Customers may have tolerated past increases, but only up to a breaking point. The very next increase could drive them into the arms of a competitor.
In a packaging industry deal we supported, management pointed to years of successful price increases as proof of strength.
But customers told us another story: they were fed up.
Imports from other areas of the world, priced 20–25% lower, were already eroding loyalty. The supposed “pricing power” was already gone. The deal’s valuation dropped by $25 million once the truth came out.
Takeaway: Pricing power can be a mirage, one more increase can turn tolerance into defection.
Slide decks often paint innovation pipelines as engines of future growth.
Management teams highlight new offerings that will supposedly drive 30–50% of future revenue. The TAM calculations are convincing, the charts compelling.
But what do customers think? Too often, they haven’t been consulted at all.
The result: those hockey-stick growth curves collapse under scrutiny. In reality, many of these pipelines should be discounted by 75% or more.
Takeaway: Future growth isn’t driven by what companies build, it’s driven by what customers actually value.
You might wonder, don’t traditional commercial diligence firms already interview customers? Yes, but their approach often falls short. Here’s why:
Big consulting firms tend to focus on industry trends, competitive landscapes, and macro forces.
Their questions are often academic rather than deal-critical. For example, in one project, a diligence partner submitted 65 questions for customers,15 of them about international expansion - but when we checked with the company, international growth wasn’t even on the radar. The result? Lots of noise, very little signal.
Getting customers to open up about sensitive issues takes skill. It’s not about running through a script, it’s about creating trust and reading nuance.
At T4, our senior researchers know how to navigate these conversations, probe beneath the surface, and surface the truth. Junior consultants rarely have that ability.
Traditional VOC projects can take 8–12 weeks. Private equity diligence windows rarely allow that luxury. That’s why many firms skip customer diligence altogether or settle for reference checks with management-selected customers.
At T4, we’ve built processes to compress deep, high-quality customer diligence into PE timelines without sacrificing rigor.
Financial models can’t capture the dynamics that customers live every day.
They can’t reveal when switching costs are lower than assumed, when unseen competitors are circling, when pricing power has evaporated, or when innovation pipelines are little more than wishful thinking.
Only disciplined, experienced customer diligence can surface those truths, before it’s too late.
If you’re ready to capture your next deal’s risk BEFORE it’s too late, get in touch. We can help you understand if customer diligence is right for you too.