Due Diligence and Data Room Prep — What VCs Demand After the Term Sheet

#What due diligence is — the verification step between the term sheet and the final agreement

Due diligence is the process by which a VC verifies your company's claims against real documentation after you sign the term sheet, but before the investment is finalized and funds are disbursed. The core terms in a term sheet (valuation, investment amount, preferences, etc.) are mostly a non-binding statement of intent to agree, with no legal force. That said, certain clauses commonly included in term sheets — confidentiality, exclusivity/no-shop provisions — are often binding, so it's safer not to assume the whole document is non-binding.

In short: the pricing and equity terms in a term sheet are a non-binding statement of intent premised on 'assuming due diligence goes through.' If the claims in your business plan don't match the actual documentation during diligence, those terms go back on the negotiating table.

The length of due diligence varies by company condition and round size, but two to eight weeks is typical for early-stage deals in Korea. It moves fast when your documentation is well organized, and drags on indefinitely if you have to produce fresh documents every time something is requested.

#Four types of due diligence — who looks at what

Due diligence isn't a single block — it's split across domains. On the VC side, an investment associate typically reviews the business itself, while accounting and law firms handle financial and legal review separately. Each domain verifies a different set of 'claims.'

Every domain, in the end, asks one thing: "Is what you said in your IR backed up by documentation?" Business diligence, for instance, asks for analytics logs as evidence behind an IR claim like 'our active users are growing steadily,' while financial diligence asks for contracts and tax invoices behind your revenue figures.

#The due diligence timeline — what happens after the term sheet

Due diligence generally flows through a set sequence. Knowing what arrives at each stage keeps you from getting caught off guard, and lets you fill your data room ahead of time. That said, not all review happens strictly after the term sheet — some preliminary review often runs in parallel before the term sheet is even signed (pre-term-sheet preliminary review → post-term-sheet full diligence). The week-by-week ranges below reflect a common pattern in early-stage Korean deals, but actual timing varies significantly deal to deal.

The most tense stretch is stage ④, Q&A. This is where questions like "the revenue in your IR doesn't match your financial statements — why?", "who is this person on your shareholder register?", and "this contract is missing its signature page" come flooding in. If you get stuck on an answer, or only start creating documents at this point, diligence drags on and trust erodes.

#Structuring your data room — a category-by-category checklist

A data room (VDR, Virtual Data Room) is the online folder where your due diligence materials live. Whether you use Google Drive, Notion, or a dedicated VDR tool, structure matters more than format. It needs to be organized by category so the VC doesn't get lost hunting for what's where. Below are six standard categories for early-stage Korean startups, along with the claim each one verifies.

Each category breaks down further into sub-documents. Create six folders and fill in the sub-lists below, and you'll have the skeleton of your data room built before the request list even arrives. Dropping a one-page index into each folder dramatically cuts down the diligence team's search time.

4-1. Corporate — the basic documents showing the company's legal status.

4-2. Financial — the area that verifies how revenue and expenses actually happened.

4-3. Contracts — the documents that show the transactions and rights surrounding your company.

4-4. Intellectual property — an especially significant area for technology-driven startups.

4-5. HR — the area covering rights and obligations tied to people. Stock options in particular become the seed of disputes if left unaddressed.

4-6. Regulatory and privacy — licensing requirements vary by industry, but privacy is a baseline review item for nearly any digital service handling customer or user data.

#Claim vs. evidence — what due diligence is really asking

Nothing illustrates the essence of diligence better than lining up common IR phrases next to the evidence demanded to back them. Using the table below in reverse is the key to everyday preparation. Every time you write a new sentence for your IR materials, note in the next column 'what document proves this claim' — and that table becomes your data room index.

What matters here is that numbers and terminology need to match across every domain. If your IR states one revenue figure and your financial statements show another, the moment you have to explain that gap, every other number gets called into question too. A common trap is when the definitions of 'revenue,' 'user,' or 'contract' shift from one document to the next. Inflate a letter of intent (LOI) into a 'contract,' or a sign-up into an 'active user,' and diligence will find exactly that gap in your definitions. That's why keeping the same word meaning the same thing across your IR, financials, and internal metrics — definitional consistency — is the starting point of all coherence.

#Where due diligence commonly gets stuck

Most deals stall or have their terms revised not because the business is bad, but because of 'loose ends' that diligence exposes. Here are the recurring sticking points at early-stage Korean startups.

• Revenue recognition mismatches — IR revenue doesn't match financial statement revenue; unable to explain differences in recognition timing between deferred revenue, receivables, and contract terms.
• Equity disputes or unclear shareholders — early members never added to the shareholder register, verbally-promised equity, ambiguous rights.
• Incomplete contracts — key customer contracts missing signature pages, or deals conducted verbally without a standard contract.
• Missing stock option resolutions — options were said to have been granted, but there's no special shareholder resolution (or board resolution for a qualifying venture company) or grant agreement.
• IP ownership mismatch — patents, domains, or code registered to an individual (the founder) rather than the company.
• Incomplete privacy consent flow — a business that collects customer data, but whose actual practice doesn't match its stated policy or consent process.

Not every one of these findings is automatically a deal-breaker. Minor issues usually get resolved with a remediation condition, and it's only problems that shake the foundation of trust — equity disputes, fabricated revenue, missing core contracts — that lead to valuation adjustments or a broken deal. And here's the critical part: a lot of these problems get worse specifically because someone tried to rush-produce a missing document.

#Preparing as a habit — due diligence rewards whoever came 'already equipped'

Diligence hits after the term sheet, but preparation starts at the business-plan stage. The core principle is simple: every time you write a claim, keep the evidence for that claim close by, in the same place.

• One-to-one matching between sentence and evidence — every time you write a number or claim in your business plan or IR, note what file backs it up.
• Maintain a standing data room — set up the six category folders (corporate, financial, contracts, IP, HR, regulatory) in advance, and drop documents in as soon as they're created.
• Keep definitions consistent — use the same definitions for 'revenue,' 'user,' and 'contract' across your IR, financials, and internal metrics. If definitions wobble, every number wobbles with them.
• Keep rights under the company's name — register patents, domains, code, and trademarks under the company from day one.
• Pass resolutions as you go — run stock options through a special shareholder resolution (or board resolution for qualifying venture companies), and don't put off documenting important contracts in writing.

Build these habits early, and when the document request list arrives after the term sheet, you're not 'building' a data room — you're just 'sharing' one. That speed and coherence is, by itself, a powerful trust signal to a VC. Right before Series A there's often a lot to re-organize around shareholder consents and board resolutions, so it's worth setting that aside as a separate task at that stage.

#The real lesson of passing due diligence — check your claim-to-evidence match at the submission stage

One thing becomes clear from everything above: due diligence isn't a new exam. It's the process of re-verifying, with evidence, claims you already made in your business plan and IR. Which means the real starting point for passing diligence isn't the term sheet — it's much earlier, at the moment you're writing your business plan and building your IR.

If claims and evidence are already interlocked at the submission and IR stage, diligence becomes just one more pass confirming that coherence. If your submission is full of claims filled in with good writing instead of substance, diligence will find exactly those gaps. We cover the difference between a business plan and IR materials, and how to smoothly connect your IR through to diligence, separately in OpenSeed Discovery's other IR-focused articles.

This is the same lens OpenSeed uses. OpenSeed's AI review isn't a tool that polishes your business plan to sound more convincing — it's a mirror that checks, before you submit, from a judge's or investor's perspective, whether each claim has evidence attached to it. Flagging in advance which claims are floating without evidence, and which numbers appear without a source, makes it considerably easier to prepare for the questions diligence will eventually raise (though it doesn't replace diligence itself).

#Frequently Asked Questions (FAQ)

Q. How long does due diligence usually take?

Typically two to eight weeks for early-stage Korean deals, though it varies by deal and stage. It's shorter when your documents are organized by category, and longer when you have to create new documents for every request. The coherence of your data room is, essentially, your speed.

Q. Do I need a dedicated VDR solution for my data room?

For early rounds, a permission-controlled tool like Google Drive or Notion is often enough. What matters more than the tool is category structure and indexing. As long as the diligence team can find what they need just by reading your folder names, you're set.

Q. What do I do about items I don't have documentation for yet?

Rush-producing a missing document right before diligence only raises more suspicion. Backdated documents get caught quickly, and once one is discovered, it undermines trust in everything else you've submitted. It's far safer to say plainly: 'we don't have this yet, and here's how and when we'll fill the gap.'

Q. If a problem turns up during diligence, does the deal automatically fall apart?

No. Minor issues are often resolved with a remediation condition. But issues that shake the foundation of trust — equity disputes, fabricated revenue, missing core contracts — can lead to valuation adjustments or a broken deal.

Q. We're still at the seed stage — do we really need to prepare all of this?

Seed-stage diligence is often lighter than Series A. Still, it's worth handling your equity structure, basic corporate documents, and key contracts regardless of stage. If document gaps that slid by at the seed stage all surface at once at Series A, the burden compounds — building the habit early makes your next round considerably smoother.

Q. Is it a problem if the numbers in my IR and my financial statements differ slightly?

If there's a difference, sort out the reason first (recognition standard, period, definitional differences). The inability to explain the gap is the real problem, not the gap itself. Where possible, it's best to unify your definitions at the submission stage so the discrepancy never appears in the first place.