Every private equity deal team has a well-worn playbook for financial and legal diligence. Quality of earnings gets scrubbed line by line. Contracts get reviewed by outside counsel. Customer concentration gets modeled three ways. Yet the systems that actually run the business, the phone lines, the network circuits, the contact center platform, the security stack, are still too often waved through with a single question to the target’s IT director: “Is everything working fine?” That question, and the comfortable answer it usually gets, is where a lot of post-close value quietly disappears.
Global M&A deal value climbed roughly 12 percent to $3.4 trillion in 2024, and the pace has continued into this year. With that much capital in motion, the discipline gap between financial diligence and technology diligence has become one of the more expensive blind spots in middle market dealmaking. Harvard Business Review and multiple consulting firms have long pointed to a sobering pattern: somewhere between 70 and 90 percent of acquisitions fail to deliver the value that justified the price paid. Bain research puts hard synergy capture even lower, with only about three in ten deals reaching their original targets. Technology is rarely the headline reason cited in the post-mortem. It is, however, very often the quiet reason underneath it.
01Why the Stack Gets Skipped
Telecom and IT infrastructure fall into an awkward gap in most diligence processes. They are too operational for the legal team, too technical for the finance team, and too unglamorous for anyone to volunteer to own. On a 45-day exclusivity clock, deal teams naturally gravitate toward the workstreams they know how to run themselves. A data room full of carrier contracts, network diagrams, and license agreements does not fit neatly into a financial model, so it gets a cursory pass, or none at all.
The result is a diligence process that is heavily weighted toward the risks deal teams are trained to see, while a meaningful share of the surprises that actually show up after close originate somewhere else entirely.
The category that gets the least attention during diligence is, disproportionately, the one generating the most unwelcome discoveries after the deal closes. That imbalance is fixable, and fixing it does not require deal teams to become network engineers. It requires treating telecom and IT as a defined workstream with its own timeline, its own specialists, and its own findings memo, run in parallel with financial and legal review rather than folded into a general operations checklist.
02What Surfaces After the Ink Dries
The costs that emerge post-close tend to fall into four recognizable buckets, and none of them are hard to find once someone knows where to look. The first is contract liability. Telecom and IT service agreements are notorious for auto-renewal clauses, multi-year terms with steep early termination penalties, and pricing that has quietly drifted well above current market rates. A target company happily using a contact center platform it signed five years ago may be locked into another three years at a rate 40 percent above what a comparable buyer could negotiate today. That liability rarely shows up as a line item anyone flags before close.
The second is integration debt. When a platform company has made several add-on acquisitions, it is common to find three or four disconnected phone systems, overlapping network circuits, and no single source of truth for where data actually lives. Each of those systems worked fine on its own. Stitched together under one ownership structure, they become a slow, expensive drag on every subsequent integration.
The third is vendor sprawl. Portfolio companies frequently carry dozens of technology and telecom vendors accumulated over years of decentralized purchasing, each with its own contract, its own support relationship, and its own invoice. This is rarely intentional. It is simply what happens when no one has ever been tasked with rationalizing it. The fourth bucket, and often the most consequential, is security exposure: unpatched systems, inconsistent access controls, and no formal incident response plan, any one of which can become a material liability within the first year of ownership.
These are not hypothetical. RSM’s private equity advisory practice has documented cases where IT diligence uncovered value the seller had never monetized at all. In one engagement, diligence revealed that a target company was already delivering maintenance and support services that had never been formally billed. Structuring that work into a proper service contract generated an additional $17 million in revenue in year one alone. On the cost side, expense audits conducted by telecom-focused advisors routinely find that a meaningful share, sometimes approaching 80 percent, of a target’s existing telecom operating spend is recoverable through renegotiation, consolidation, or migration to current technology. Diligence done well is not only a defensive exercise. It is frequently where the first quick win of the hold period gets found.
03A Parallel Workstream, Not an Afterthought
A practical technology and telecom diligence framework does not need to be exotic. It needs to run on the same clock as financial and legal diligence and report into the same investment committee. It starts with a full contract and liability audit, mapping every circuit, license, and service agreement against its term, its renewal date, and its true cost, so that nothing renews automatically into the new ownership structure without a decision behind it. From there, an architecture and integration assessment asks a simple question with a complicated answer: can this company’s systems absorb the add-on acquisitions or organic growth the investment thesis assumes, or will the platform need to be rebuilt to support it. A vendor concentration review follows, identifying single points of failure and unnecessary redundancy across the vendor base. A cybersecurity and compliance assessment benchmarks the target against current standards rather than the standards in place when the systems were first deployed. Finally, a cost benchmarking exercise compares existing telecom and IT spend against current market pricing, which is where a great deal of near-term EBITDA improvement tends to live.
The evidence for running this workstream is not anecdotal. McKinsey research on technology-related acquisitions found that roughly three out of four fail to meet their original financial objectives, while companies that complete thorough technology due diligence are nearly three times more likely to hit their targets. Translated into a hold period, that is the difference between a technology stack that quietly funds the investment thesis and one that quietly undermines it.
04The First 100 Days: Reactive vs. Designed
The gap between diligence done well and diligence done in passing shows up most clearly in the first hundred days of ownership, the window every operating partner treats as the make-or-break period for a new investment. With average PE hold periods now running close to six years, the technology decisions made in that first quarter tend to compound for the life of the deal, for better or worse.
A reactive integration looks familiar to anyone who has lived through one. The new ownership group discovers in month two that the recently acquired business runs on a phone system incompatible with the platform company’s, that a key vendor contract auto-renewed the week before close, and that no one can produce a current network diagram. Time and budget that were supposed to go toward growth initiatives instead go toward patching a stack that should have been assessed months earlier. A designed integration looks different because the groundwork was laid before the deal closed. The technology and telecom findings from diligence become a scoped roadmap on day one, with contract renegotiation dates calendared, network consolidation sequenced against the broader integration plan, and a security baseline established before any new employee, vendor, or acquired entity touches the network. The difference is not the amount of change required. Both paths usually require similar work. The difference is whether that work happens on the operator’s schedule or on the schedule the technology stack imposes.
Consulting firms that specialize in post-close value creation consistently frame the first hundred days as a period for capturing quick wins while building toward the medium-term plan. Telecom and IT belong squarely inside that plan, not bolted onto it after the fact. A cost benchmarking exercise completed during diligence can convert directly into a renegotiation or migration project that starts generating savings within the first quarter of ownership, precisely the kind of early, visible win that builds credibility with a new ownership group and the operating team it now works alongside.
Financial and legal diligence will always anchor the deal process, and rightly so. But in a market where technology now touches every function of a business, from how it takes orders to how it serves customers to how it protects its data, treating the technology and telecom stack as a footnote is no longer a minor omission. It is a gap with a dollar figure attached, one that shows up in year one whether or not anyone went looking for it during diligence. The deal teams and operators who build a technology workstream into their process from the start are not just avoiding surprises. They are very often finding the first source of value creation before the deal has even closed.