The startup technical audit: what it covers and when you need one

The phrase covers several different things, which is why quotes vary so much. It can mean a code review by a contractor, a full diligence exercise run by an investor, a penetration test, or an automated validation of technical controls. Before pricing anything, it is worth being precise about which one you actually need, because they answer different questions and only one of them is usually urgent.

What a technical audit examines

Scope varies, but at seed and Series A almost every serious review covers the same four areas.

• Security controls. Whether authentication, authorisation, transport security, secret handling and input validation are enforced on the server rather than assumed in the interface.
• Code and dependency health. Known vulnerabilities in what you depend on, how much of the codebase is understood by more than one person, and whether tests cover the paths that would hurt.
• Ownership. Whether every contributor assigned their intellectual property, and whether any open-source licence in the tree affects what you can sell.
• Operational readiness. Whether you can deploy and roll back, whether backups have been restored rather than merely configured, and what tells you the product is down.

Notice that only the first two are about code. A large share of the findings that actually delay deals come from the third area, which is administrative and entirely preventable.

What it costs

For a venture-led seed round, the technical portion of diligence commonly runs the fund ten to forty thousand dollars, and angel-led deals sit lower, roughly two to fifteen thousand. An independent audit you commission yourself is priced similarly, because it is the same work by the same kind of reviewer.

That number is worth holding next to the alternative. A single unresolved finding in the ownership area can delay a round by weeks, and the cost of a delay at that stage is rarely measured in the same units as an audit fee.

When it is worth doing

An audit is worth commissioning when someone else is about to depend on your answer, and not especially useful before that.

1. Before a raise, so findings arrive on your schedule rather than the investor's.
2. Before an enterprise contract, where procurement will ask questions your sales team cannot answer.
3. After a significant rewrite, particularly one where a lot of code was generated quickly.
4. When joining an accelerator that reports on cohort quality, since the batch is measured whether you participate or not.

How to prepare so the findings are useful

The goal is not to pass. It is to learn what is true before someone with leverage does. Preparing properly changes what the audit is able to tell you.

• Fix the ownership paperwork first. It depends on other people replying, so it has the longest lead time.
• Run a dependency audit and clear anything critical. This is an afternoon and removes the least interesting findings.
• Restore a backup and write down the date. An untested backup is a belief, not a control.
• Write down what you already know is weak. A reviewer who finds something you documented reads it as judgment. The same finding undocumented reads as a blind spot.

Doing it yourself versus buying independence

Most of the checks above are things a competent engineering team can perform on itself, and doing so is genuinely worthwhile. What a team cannot produce for itself is independence. Your own assessment of your own controls is exactly as persuasive as any founder's, which is to say it moves nobody who was not already convinced.

That is the real decision. If the audience is you, do it yourself and save the fee. If the audience is an investor, a customer, or a programme deciding what to report about its cohort, the value is in the fact that you did not grade your own work.

StackAttest sits deliberately between the two. It tests technical controls against named standards, records how strong the evidence behind each result is, and produces a report and a shareable Passport. It does not replace a full diligence exercise, and where a human reviewer is the right answer we would say so. It answers the technical control questions with evidence, continuously, for a fraction of a commissioned review.