You are about to buy a share of an asset you have not inspected. A code audit is the inspection — but only if it is scoped to answer investment questions rather than engineering ones.
A pre-investment code audit sits inside broader technical due diligence, and it has a narrower job: establish what actually exists, whether it is owned cleanly, and whether it can carry the plan being funded.
Scoped badly, it produces a list of style complaints. Scoped well, it produces two or three findings that change the deal.
What access to request
Ask for these before signing the term sheet. Resistance at this stage is informative on its own.
- Read access to all repositories — including infrastructure-as-code and deployment scripts, which are frequently where the real state of things is visible
- Full commit history, not a squashed snapshot: history reveals who actually built the system and how fast it moves
- An architecture walkthrough with the engineer who built it, one to two hours
- Access to the issue tracker and, where they exist, incident records
- The list of third-party services the product depends on
The eight questions the audit must answer
- Does the code that exists match what was described in the pitch? (Demoware and integrations that are really manual processes are common.)
- Who wrote it, and are those people still there?
- Is IP ownership clean — contractors under assignment, no unlicensed copied code, no license contamination from GPL dependencies in a proprietary product?
- What breaks first under the growth plan, and what does moving that ceiling cost?
- Is customer data isolated between tenants, and is authorization enforced server-side?
- For anything financial: is there an immutable ledger, and is every money path idempotent?
- Can the team deploy safely — automation, rollback, monitoring?
- How much of the product is genuinely theirs versus a thin wrapper over vendors that could reprice or disappear?
Findings that justify a deal term
| Finding | Typical consequence |
|---|---|
| Contractor-built core with no IP assignment | Close before wiring — legal remedy, not technical |
| No ledger in a company that moves money | Remediation budget funded in the round; possible tranching |
| Cross-tenant data exposure | Fix as a closing condition |
| Critical vendor dependency with no fallback | Concentration risk disclosed; sometimes a covenant |
| Bus factor of one on the core system | Retention package or key-person insurance |
| No automated deployment | Costed into the post-close plan |
What is not worth your attention
Auditors who bill by findings will hand you a long list. Most of it does not matter to an investment decision:
- Framework or language preferences — every choice has critics
- Code style and formatting inconsistency
- Low overall test coverage percentage, when the money and auth paths are covered
- Outdated dependencies with no reachable vulnerability
- Absent documentation — genuinely common, rarely decisive, cheap to fix
If the audit report cannot be summarised in three sentences to your investment committee, it was scoped as an engineering exercise rather than an investment one.
What good output looks like
- A one-page summary in business language, with a clear overall risk position
- Findings ranked by consequence, each with evidence the target's team can verify
- Remediation cost in engineer-weeks, so it converts to money
- A recommended 90-day post-close technical plan
- An explicit list of what was NOT examined, so nobody assumes coverage that did not happen
Specify the evidence you are buying
A code audit deliverable should let the buyer trace a material finding to its source and understand the cost of acting on it.
- Identify repository, commit, environment and review date.
- Request examples, affected workflows and remediation assumptions.
- Require an exclusions list and a follow-up verification option.
Frequently asked questions
How long does a pre-investment code audit take?
Three to ten working days for most seed and Series A targets. Fintech, healthtech, or unusually large codebases run longer. Beyond two weeks you are usually buying detail rather than decisions.
Will the startup know we are auditing them?
Yes — meaningful audits require repository access and engineer time, so it is a cooperative process. Reputable targets expect it and are generally comfortable; unusual resistance is worth noting in itself.
Can you audit without source code access?
Only superficially. Without the repository you can assess the running product, public security posture, and team signals, but you cannot judge IP cleanliness, real architecture, or maintainability — which are usually the findings that matter.
What if the audit finds serious problems?
That is a successful audit, and it rarely ends the deal. Most findings convert into a remediation budget, a closing condition, tranched funding, or a valuation adjustment. The failure mode is discovering the same problems at month six, when they cost far more.
Must the reviewer receive a production database copy?
Not by default. Prefer synthetic or appropriately redacted data and limited access. Escalate only when a specific question cannot be answered with less exposure.
Need an audit before you wire?
Findings ranked by business consequence, remediation priced in engineer-weeks, delivered in under two weeks.
Further reading
Technical Due Diligence for Investors: The Complete Guide
Technical due diligence is not a code review. It is an answer to one question: what will it cost to get this technology where the investment thesis needs it to be?
MVP Technical Audit: What We Check in the First 48 Hours
Most MVP audits produce a document. A useful one produces decisions: what is on fire, what can wait, and what it costs to fix.