Technology due diligence is an independent, structured assessment of a company’s technology platform, commissioned by investors or acquirers as part of a transaction process. It covers architecture, security, engineering practices, data capability, AI readiness, and team capability, producing a risk-rated report that informs investment decisions, deal structure, and post-close planning.
For most software businesses, technology is the asset. Tech DD surfaces what it is, what it’s worth, and what it will cost to scale or fix.
What does technology due diligence cover?
A technology due diligence engagement typically covers four domains:
1. Product, Strategy & AI Assessment of product vision and roadmap clarity, planning and prioritisation processes, AI differentiation and deployment, and usability. This reveals whether the product has the legs to support the investment thesis.
2. Software & Data Architecture Review of platform extensibility, scalability, data architecture, model lifecycle management (for AI-enabled products), and software quality. This identifies architectural risks and the real cost to scale or modernise.
3. Technology Team & Process Evaluation of organisational design, SDLC maturity, R&D toolset, AI efficiency, and cost efficiency. Key-person risk, team capability depth, and attrition risk are assessed here.
4. Cybersecurity Review of policies, certifications, security tooling, system hardening, and incident response capability. Security gaps are among the most consequential findings in tech DD; they can affect valuation, deal structure, and post-close liability.
Who commissions technology due diligence?
Technology due diligence is commissioned by:
- PE funds acquiring a new portfolio company (buy-side)
- PE funds preparing a portfolio company for exit: producing a Sell-Side Technology Report for inclusion in the vendor due diligence pack
- Management teams running an owner-led or secondary transaction
- Portfolio company boards seeking an honest, independent view of technology risk ahead of a growth phase or strategic decision
What is the output?
The output of a technology due diligence engagement is a written report structured for investors and boards, not internal IT teams. A typical report includes:
- Executive summary with overall technology assessment
- Risk-rated findings across all domains
- Technical debt quantification and investment requirements
- Team and capability review
- Benchmark comparisons against comparable businesses
- Prioritised recommendations
Buy-side vs. sell-side technology due diligence
Buy-side tech DD is commissioned by the investor. Its purpose is to identify risks before committing capital: surfacing deal flags, quantifying technical debt, and informing the investment decision and deal structure.
Sell-side tech DD (also called a Vendor Technology Report or Sell-Side Technology Report) is commissioned by the vendor. Its purpose is to prepare for investor scrutiny: identifying gaps before buyers do, building a credible technology narrative, and reducing friction in the sale process.
The same domains are covered. The framing and use of the output differ.
How long does technology due diligence take?
At Proof Edge:
- A Technology Health Check (the sell-side or portfolio-monitoring equivalent) takes 1 week from kick-off to final report.
- A Sell-Side Technology Report takes 3 weeks from kick-off to final report.
- Buy-side engagements are scoped to the deal timeline typically taking 2 weeks to complete.
Timelines are confirmed at scoping and designed to move at deal pace.
What makes technology due diligence useful, or not?
The depth and usefulness of tech DD depends almost entirely on who does it. A review conducted by analysts following a checklist will miss the risks that matter. Useful tech DD is conducted by senior practitioners with direct operating experience: people who have built, run, and assessed technology businesses at scale, and who know what they’re looking at.
This is the Proof Edge model: every engagement is led and executed end-to-end by senior practitioners, not analysts or junior reviewers.