Technical Due Diligence - Share your stories and pain points

November 07, 2025

by an investor from Auburn University in Seattle, WA, USA

Hey all, I'm launching a firm which provides technical expertise to ease the pain of technical due diligence for tech/tech-adjacent acquisitions. If you / your company have purchased a tech/tech-adjacent company I'd love to hear from you: Did you perform technical due diligence? Did you run into any challenges / unexpected hurdles when performing due diligence? Reluctance on seller side to share access to code for example. Post close did you uncover any problems which caused operation pains or late night fires? - Foster

Reply by a searcher
in Monroe, WA, USA

While I worked at Qualtrics, my team had to deal with various post-close issues that arose from the lack of technical due diligence by the buying team. Several businesses, in the US and Europe. So rule #1: have IT folks do a due diligence before making a decision to buy. Most post-closing issues were around legacy systems design, such as use of obsolete technologies for critical business processes, or not setting a clear priority to transition the legacy systems to the supported platforms of the acquiring company. There was a case when the business laptops were legally personal property of the employees and had to be replaced because there was no legal way of making those a company property after closing (Belgium). Happy to advise if you can share more context for a specific situation.

Reply by a searcher
from Northwestern University in Phoenix, AZ, USA

The code base looked good upon pretty close inspection. But it turned out it had a fatal flow regarding architecture and load balancing (if many users were logged in at once, everything would crash)

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