There is no shame in having an agency build your first product. Plenty of funded companies started exactly that way, and for a non-technical founder it is often the only sensible path to a working MVP. The problem is not that you outsourced the build. The problem is the moment in diligence when an investor asks who built it, whether you own it, and how it works, and you realize you can answer none of those questions cleanly.
That moment is avoidable. But it requires doing some work before the round, not scrambling during it.
The three questions diligence will ask
When a reviewer learns your product was built by an outside team, three questions follow, in order.
First: do you own the code. This is the one that ends rounds. If your agency contract does not contain a present assignment of intellectual property, you may not legally own what you paid for, because in many jurisdictions the creator owns the work unless ownership is transferred in writing. Investors treat unclear ownership of the core asset as an immediate red flag, because they are buying that asset and you cannot prove you hold it.
Second: can you explain how it works. A reviewer will ask about the architecture, the data model, the scaling story. If your honest answer is "the agency knows," you have just revealed that the company has no internal technical understanding of its own product. That is a different and sometimes larger concern than the code quality itself.
Third: can you keep building without them. If the agency walked away tomorrow, could anyone pick up the codebase. Reviewers probe this because they are funding a future roadmap, not a frozen artifact, and a product only one external team understands is a fragile thing to fund.
Fix the ownership question first
Pull your agency contract and find the IP clause before a lawyer does it for you. You are looking for present-tense assignment language: "the Developer hereby assigns" all rights to the code and work product. A promise to assign later, or silence on the matter, is not the same thing and will get flagged.
If the language is missing or weak, get a signed assignment now, while the relationship is still friendly and there is no money on the table making it adversarial. Retroactive assignments are routine and far easier to secure before diligence than during it. Confirm the same for any individual freelancers, because an agency cannot assign rights it never properly secured from its own contractors. This is the same trap whether the code came from one freelancer or an offshore shop, and who owns your code covers exactly what to check.
Close the knowledge gap before the call
Owning the code is necessary but not sufficient. You also need someone on your side who understands it well enough to defend it in a technical conversation, because the reviewer will want to talk to a person who can answer follow-ups, not read from a document the agency wrote.
If you have no technical person internally, this is the gap to close before you open the round. Get an independent technical read of what the agency built: a real assessment of the architecture, the shortcuts, the scaling limits, and the parts held together with tape. You want to walk into diligence already knowing what the reviewer is going to find, so nothing on the call is a surprise to you. An honest outside teardown of the codebase does exactly this, and it is far cheaper than discovering a structural problem across the table from an investor. If you suspect the build has issues, an AI-built or agency-built MVP is a draft, not a finished product, and treating it that way in front of investors is more credible than pretending otherwise.
Get ahead of the maintainability question
The "can you keep building without them" concern is best answered by evidence, not assurances. The strongest evidence is that someone other than the original agency has already worked in the codebase successfully: a contractor who shipped a feature, an advisor who reviewed and could navigate it, a hire who onboarded. Even a small example proves the code is not a black box that only its authors can touch.
If you cannot show that yet, at least be able to describe the plan. Where the documentation lives, how a new engineer would onboard, what the first three months of bringing development in-house would look like. Reviewers do not need the work done. They need to see that you have thought about the transition and that the product is not permanently hostage to one outside vendor.
The honest framing wins
The founders who get through this cleanly are not the ones who hide that an agency built the product. They are the ones who say it plainly: "An agency built the MVP, here is the signed IP assignment, here is an independent technical assessment of what they built, and here is our plan to bring development in-house after the round." That is a story a reviewer can underwrite. "We built it ourselves" followed by an obvious contradiction in the code history is the version that ends rounds. If you want a second read before any of this reaches an investor, that is a good moment to book a call.
FAQ
Is it a problem that an agency built our product?
Not on its own. Many funded companies started with agency-built MVPs. The problem is being unable to prove ownership, explain the system, or continue building without the agency. Solve those three and the build origin is a non-issue.
What exactly do I need from the agency?
A signed IP assignment with present-tense granting language, source code and access to all accounts and infrastructure, and ideally documentation. Confirm the agency also holds assignments from any individual contractors it used.
Should I hire an in-house engineer before raising?
Not necessarily before, but you need a credible plan for technical ownership and someone who can defend the product in diligence. An independent technical assessment plus a hiring plan is often enough at the early stages.
What if the agency will not sign an assignment now?
That is itself a serious warning sign worth resolving immediately. Most reputable agencies will sign without issue. Resistance suggests a dispute you want to surface and settle long before an investor's lawyer finds it.