Sell-side and buy-side technology due diligence both assess the same thing, a company’s technology platform, but they are commissioned by different parties, for different purposes, and used in different ways.
Buy-side technology due diligence is commissioned by the investor or acquirer. Its purpose is to independently assess a target’s technology before committing capital.
Sell-side technology due diligence (also called a Vendor Technology Report or Sell-Side Technology Report) is commissioned by the vendor, typically the PE fund or management team. Its purpose is to prepare for investor scrutiny and reduce friction in the sale process.
Comparison
| Buy-Side | Sell-Side | |
|---|---|---|
| Commissioned by | Investor / acquirer | Vendor / management team |
| Purpose | Assess risk before investing | Prepare for investor scrutiny |
| Output used by | Investment committee, deal team | VDD pack, information memorandum |
| Framing | What are the risks? | What is the story? |
| Typical timing | During live deal process | 6–12 months before (optimal) or during process |
| Proof Edge turnaround | Typically 2 weeks | 3 weeks for a standalone report |
What buy-side technology due diligence produces
A buy-side assessment is structured to support a specific investment decision. It produces:
- Deal memo: a concise investor-ready summary of material technical risks and deal flags
- Full assessment report: detailed findings across all workstreams, with evidence and context
- Risk register: technical risks rated by severity and likelihood
- Management Q&A support: we can attend management presentations and respond to technical questions
The framing is: what should the investor know about this asset before they commit?
What sell-side technology due diligence produces
A sell-side report is structured to give potential buyers confidence in the asset. It produces:
- An independently prepared, evidenced assessment of the technology platform
- Risk-rated findings across all four domains
- Technical debt quantification and investment requirements
- A narrative framing that is credible, commercially grounded, and written for an investor audience
The framing is: what would a knowledgeable buyer want to know, and how do we present it clearly?
Why commission a sell-side report?
A well-prepared sell-side technology report:
- Reduces friction: buyers receive a credible, evidenced view upfront, reducing the volume of diligence questions and management time spent in the data room
- Supports valuation: it documents and validates the technology story, reducing the risk that buyer DD surfaces surprises that affect price or deal structure
- Accelerates the process: where the report is already in the VDD pack, buy-side DD can proceed faster
- Identifies gaps early: if commissioned 6–12 months before the process, findings can be addressed before buyers see them
The optimal path
The best outcomes come from engaging early:
- 6–12 months before process: Commission a Technology Health Check. Identify gaps and address them. Commission the Sell-Side Technology Report once remediation is complete; it is faster and cheaper because the findings are already documented.
- 6–8 weeks before process: Commission a Health Check or standalone Sell-Side Report depending on timeline.
- Process live or imminent: Standalone Sell-Side Technology Report, delivered in 3 weeks from kick-off.
Do I need both?
In a typical transaction, the vendor commissions a sell-side report; the buyer commissions their own buy-side assessment. The two are independent, and one does not replace the other.
Buyers who receive a well-prepared sell-side report still benefit from their own independent assessment. But a credible sell-side report reduces the depth and duration of buy-side DD, saving time and management friction on both sides.