Build the Systems List Before the Buyer Asks
Synergised Consulting Ltd
Last Updated: 2026-09-09
Technology due diligence is where buyers' advisers now report putting the most time: in a Q4 2025 survey of 150 senior executives at investment banks headquartered in the United States, 47% placed technology among the top two diligence areas that had seen the greatest increase in time and resources over the previous 12 months, and 51% called it the most burdensome part of the review.[1] What it tests is a list most founder-led businesses have never written down: which systems the company runs, who administers each one, where the data lives, and how access transfers at closing. Build that inventory before you go to market, and you answer the buyer's hardest questions before they are asked.
Where Diligence Time Is Actually Going
Technology due diligence has moved from a late-stage IT check to the area absorbing the most diligence effort. In a Q4 2025 survey of 150 senior executives at investment banks headquartered in the United States, SRS Acquiom and Mergermarket found that 47% selected technology among the top two diligence areas that had seen the greatest increase in time and resources over the previous 12 months, and 51% identified it as the most costly or onerous component to complete to a sufficiently high standard.[1] On the same evidence, 73% expect the diligence process overall to become more complex in the next 12 to 24 months, and 84% anticipate increased scrutiny of cybersecurity due diligence specifically.[1]
Why technology absorbs this much diligence effort is not fashion. Every later diligence workstream runs through the systems list: the financial workstream needs to know where the accounting data lives, the legal workstream needs contract repositories, the operational workstream needs to see whether delivery depends on tooling only one person can operate. A buyer that cannot establish which systems the business runs, and whether it can actually take them over, cannot verify anything else efficiently. When the study's respondents call technology the most burdensome element of the review, they are describing this gating effect in survey form.
What this means for a founder preparing a sale is that the review will begin with questions most owner-managed businesses answer from memory. The seller who can produce a written systems inventory lets the buyer's workstream move; the seller who reconstructs the answer verbally, system by system, becomes the bottleneck in the buyer's most resource-intensive workstream.
What the Buyer's Technology Workstream Actually Tests
A buyer's technology diligence is not a request for a software licence list. Per system, it tests four things: whether the system has a documented owner; whether administrative control can be demonstrated rather than asserted; whether the data in it can be exported; and whether recovery works when tested. The last two are the ones founder-led businesses most often fail, because the honest answer to "can you get the data out, and can you restore from backup" is usually "we have never tried".
How the test plays out is easiest to see worked through one system. Take the customer database. The buyer asks: who owns it, which named individual administers it, whose email address the licence and the vendor contract are registered to, where the data physically resides, whether it exports in a usable format, and what happens to access at closing. In a typical founder-led business the answers are: the founder, the founder, the founder's personal email, "somewhere in the cloud", untested, and unresolved. Each answer is survivable alone. Together they tell the buyer that the business's most important data asset is personally held, which invites deeper questions about every other system.
The same pattern repeats across accounting, payroll, email, website, production tooling and communications. A buyer working through the component its own advisers call the most onerous does not need the seller's systems to be sophisticated. It needs them to be legible: findable, owned, transferable and recoverable. Legibility is a documentation property, not a technology property.
Build the Systems Inventory Before Anyone Asks
The fix is a single artefact built before going to market: a systems inventory and access register with one row per system. The columns follow directly from what the buyer's workstream tests: system name and purpose; documented owner; named administrator; licence and vendor-contract contact; data location; integrations with other systems; export capability; and recovery process. A one-page coverage table against the four checks, documented owner, verified administrative control, exportable data and tested recovery, tells you before the buyer does which rows are sale-ready and which need work.
What the buyer tests | Unprepared seller | Prepared seller |
|---|---|---|
Documented owner | "That's me, I've always run it" | Named owner and deputy per system, in writing |
Administrative control | Credentials on the founder's personal device | Named administrator, credentials held in a business password manager |
Data location and export | Unknown or untested | Data location recorded; export completed and verified at least once |
Recovery | Assumed to work | Backup restore tested, with the test date recorded |
How to build it is a bounded exercise, not a project. First, list every system the business depends on for revenue, delivery, payment and compliance; the list is usually longer than the founder expects. Second, assign the detail-gathering: the founder owns the artefact set, and the office manager, senior administrator or outsourced IT provider fills in and verifies each row, because they hold the operational knowledge the founder has never had to write down. Third, test what has never been tested: export one dataset from each critical system, and run one recovery check. Fourth, record the gaps honestly; a coverage table with three unchecked rows is a work plan, and hiding them simply moves the discovery into the buyer's review.
The discipline of routing answers through one controlled source applies to the whole sale process, not just systems. Legacy Advisors' September 2026 guidance on answering buyer questions recommends treating diligence as controlled disclosure from the deal side: category owners per domain, a single source of truth for key facts, and a written log of what was answered and on what evidence.[2] Their central point is that imprecision, not dishonesty, is what creates diligence risk, because an answer given from memory gets compared against documents and becomes part of the factual record.[2] The systems inventory is that discipline applied to the workstream that now absorbs the most diligence time.
The Evidence This Produces
What the exercise leaves behind is exactly what the buyer's technology workstream is trying to establish: a systems inventory and access register showing owner, administrator, data location, export capability and recovery process per system, plus a recorded tabletop test, a short written walk-through of what happens if the founder is unavailable at closing and each critical system needs to be operated or handed over. The tabletop test is the part sellers skip and buyers value most, because it converts the inventory from a claim into a demonstration.
Why this artefact matters beyond the review is that it changes what the buyer is evaluating. Operational efficiency gains show up as stronger, more defensible value drivers: the kind of documented improvement a buyer's diligence process rewards. A business whose systems are documented, administered independently of the founder and demonstrably recoverable is a business the buyer can picture operating; a business whose systems live in the founder's head is one the buyer has to price around. The inventory does not make the systems better. It makes them inspectable, and inspectability is what the buyer's technology workstream is for.
This is also an artefact Synergised maintains for itself. Every system the Synergised content pipeline depends on runs under a scoped credential rather than a founder's master login, with a named owner, a defined approval gate and a documented recovery path, and the pipeline's own access register is reviewed whenever a tool or account changes. The discipline described in this post is applied to Synergised's own operation, not only prescribed to clients.
How to start is one line: open a spreadsheet, add a row for every system the business would stop without, and fill in the owner column first. If the honest answer in most rows is your own name, that is the finding, and finding it months before a buyer does is the entire point of doing this before you go to market.
An inventory answers the first question. The harder ones follow it — who holds the admin rights, where the data actually lives, what happens when a system nobody owns is switched off — and they are worked through in order in preparing a founder-led business to be handed over.
Sources
This piece rests on one Tier A source for its figures: the SRS Acquiom and Mergermarket 2026 Best Practices in M&A Due Diligence study, a stated-method survey of 150 senior executives at investment banks headquartered in the United States, fielded in the fourth quarter of 2025 (47% placing technology among the top two diligence areas with the greatest increase in time and resources over the previous 12 months, 51% calling it the most costly or onerous component to complete to a sufficiently high standard, 73% expecting the diligence process to become more complex, 84% anticipating increased cybersecurity diligence scrutiny). One Tier B adviser source is used for qualitative framing only and carries no figures.
- [1] SRS Acquiom / Mergermarket, "2026 Best Practices in M&A Due Diligence" (survey of 150 senior investment-bank executives, Q4 2025): (the same study findings are also published on the Mergermarket/ION Analytics page: )
Background reading, qualitative guidance, no figures:
Sources
- SRS Acquiom and Mergermarket's 2026 Best Practices in M&A Due Diligence study, a Q4 2025 survey of 150 senior executives at investment banks headquartered in the United States, found 47% selecting technology among the top two diligence areas that had seen the greatest increase in time and resources over the previous 12 months, 51% identifying it as the most costly or onerous component to complete to a sufficiently high standard, 73% expecting the due diligence process to become more complex over the next 12 to 24 months, and 84% anticipating increased scrutiny of cybersecurity due diligence.
SRS Acquiom / Mergermarket, "2026 Best Practices in M&A Due Diligence" (survey of 150 senior US investment-bank executives, Q4 2025) · 23/02/2026
