If you're raising a round, going through M&A, or just preparing for serious investor conversations, someone is going to ask for a data room. Maybe an associate at a VC firm. Maybe a lead investor. Maybe a banker running a process.
The problem is that most founders build their data room the wrong way - too late, too messy, or using the wrong tool for the job.
This guide covers what a virtual data room actually is, how it works in investment banking and M&A, what you should put in it, what it costs, and how to choose a platform. No fluff.
What is a data room in investment banking?
A data room is a secure place where you share confidential documents with potential investors, acquirers, or their advisors. Originally, data rooms were physical. You'd book a room, stack it with binders, and let the other side's team fly in to review documents under supervision. Seriously.
A virtual data room (VDR) does the same thing online. It's a controlled environment where you upload files, control who can see what, track who's reviewing which documents, and protect sensitive data with things like watermarks, NDA gates, and download restrictions.
In investment banking, data rooms are used for:
- M&A due diligence - buyers review the target company's financials, contracts, IP, and operations before closing
- Capital raises - founders share confidential decks, financials, and cap tables with investors
- IPO preparation - companies organize documents for underwriters and regulators
- Debt financing - lenders review financial records before extending credit
- Asset sales - sellers share property or portfolio documents with bidders
What is a virtual data room in M&A?
In M&A specifically, a virtual data room is where the entire due diligence process happens. When a buyer wants to acquire a company, they can't just take the seller's word for anything. They send a team of lawyers, accountants, and advisors to go through everything.
That process used to take months in physical rooms. A VDR compresses it. It gives the buy-side controlled access to documents, tracks their activity, and keeps everything organized under a structured folder system.
The sell-side (usually the company being acquired, supported by investment bankers) sets up the data room. They decide who gets access to what, in what order, and with what restrictions.
Here's a simplified version of how that works:
The key difference between a VDR for M&A and a basic file-sharing tool is control. In M&A, the stakes are high enough that you can't afford accidental leaks, you need proof of what was disclosed and when, and you need to manage multiple bidders with different levels of access. That's why M&A-focused VDRs tend to be more expensive and feature-heavy.
What goes in a data room?
This depends on the deal stage and type. Here's a practical breakdown of what investors and acquirers typically expect.
Don't overthink it early on. A seed round data room can be relatively lean. A Series B or M&A process requires much more depth. Build to the level your deal actually needs.
Virtual data room providers: what to look for
There are dozens of VDR providers. They range from enterprise platforms built for bulge-bracket M&A to lightweight tools that startups use for fundraising. Here's what actually matters when you're picking one.
Security and access control
This is non-negotiable. At minimum, look for:
- Two-factor authentication
- Granular permissions (view-only, download, print)
- Dynamic watermarking - puts the viewer's name or email on every page
- NDA gating - require signature before access
- Audit logs - full record of who accessed what and when
- Restricted visitor access - specific users can only see specific folders
Analytics and tracking
One underrated feature is knowing how investors are actually engaging with your documents. A good VDR tells you who opened your pitch deck, which pages they spent the most time on, whether they skipped your financials, and when they last visited. That's useful intel during a live process.
Ease of setup
If it takes you a week to get the room ready, that's a problem. Look for drag-and-drop upload, simple folder organization, and fast link sharing. The best tools let you go from zero to live in under an hour.
Pricing model
VDR pricing is all over the place. Some platforms charge per user, per page, or per GB. That can get expensive fast. Others charge flat monthly fees. Know what you're signing up for before you commit.
How much does a VDR cost?
VDR pricing varies a lot depending on the platform and what you need. Here's a general overview of what you'll see in the market.
Enterprise VDRs like Intralinks or Datasite are built for complex M&A with multiple bidders, legal teams, and thousands of documents. If you're a startup raising your first institutional round, you probably don't need that level of infrastructure - or that price tag.
The main hidden costs to watch for: per-user fees, storage overages, and overage charges when you exceed document limits. Always read the pricing page carefully before committing.
What is a data room for startups?
For startups, a data room is usually less about M&A and more about fundraising due diligence. When a VC or angel decides they're interested in your company, they'll want to look under the hood before wiring money.
A startup data room is typically a more streamlined version of the full M&A due diligence room. The goal is to:
- Organize your company documents in one place
- Share them securely with investors without email attachments flying around
- Track who's reviewing what so you can gauge interest
- Control access so sensitive info doesn't leak
The typical startup data room lives through three phases:
Pre-due diligence - when investor is warm, not yet committed. Share the pitch deck, one-pager, and basic financials.
Active due diligence - when term sheet is signed or near signing. Share full documents, contracts, cap table, and IP.
Closing - when the deal is nearly done. Share final versions, signed docs, and compliance records.
You don't need to share everything up front. It's normal to open access progressively as the relationship and conviction develop.
Start building your data room on Ellty before you need it. Investors notice when founders show up organized - it signals operational maturity. Sign up free and have your documents ready to share in under an hour.
Best virtual data room for investment banking: how to choose
There's no single best answer. The right tool depends on your deal size, team, and budget. Here's how to think about it.
If you're doing large M&A or IPOs
You need a purpose-built enterprise VDR. Platforms like Intralinks, Datasite, or Venue have the compliance features, dedicated support, and integration infrastructure that complex deals require. Budget accordingly - these start at several hundred dollars a month and go well above $1,000 for full deals.
If you're a founder raising a Series A or B
You need security, analytics, and ease of use - but you don't need the full enterprise stack. Tools in the $100-$400/month range can handle this well. Look for NDA gating, view-only permissions, and document-level tracking.
If you're at the seed stage or just getting started
Your needs are simpler. You need to share a deck and a few documents securely with a handful of investors. A basic plan with trackable links and view analytics covers most of what you actually need.
Where Ellty fits
Ellty is a pitch deck sharing, analytics, and data room platform built for founders who want to move fast without sacrificing control.
Here's what the plans look like:
Ellty works well when you're a founder or small team managing an active fundraise. The Data Room plan gives you the core security features you need for due diligence - NDA gating, view restrictions, watermarking - without the per-user pricing that inflates costs on other platforms.
What Ellty does well:
- Fast setup - you can have a data room live and shared in minutes
- Pitch deck analytics - see exactly who viewed your deck and which slides they focused on
- Trackable links - create separate links for each investor so you know who's who
- Real-time notifications - get alerted the moment someone opens your documents
- Secure sharing without email attachments
Where Ellty has limits:
- It's not built for large M&A processes with 10+ bidders and thousands of documents
- If you need deep integration with legal workflows or complex Q&A management for enterprise deals, a dedicated M&A VDR is the better fit
- Ellty is best for founders and small teams, not for investment banks managing sell-side processes at scale
If you're a startup founder preparing for your first institutional raise or a Series A due diligence process, Ellty gives you what you need at a fraction of the cost of enterprise VDRs.
Try Ellty Data Room free and see how fast you can get organized. No per-user fees, no setup complexity - just upload your documents, set permissions, and share a trackable link with your investors today.
How to set up your data room: a practical checklist
Here's a straightforward process you can follow regardless of which platform you use.
Step 1: decide what to include
Don't dump every file you've ever created into the data room. Only include documents that are relevant to the deal. Use the table above as a guide based on your stage.
Step 2: create a clear folder structure
Investors and their teams will navigate your data room. Make it easy. A clean structure saves everyone time and makes you look organized.
A typical structure looks like this:
- 01 - Company overview (pitch deck, one-pager, executive summary)
- 02 - Financials (P&L, balance sheet, cash flow, projections)
- 03 - Legal and corporate (incorporation, cap table, board minutes)
- 04 - Product (roadmap, technical overview, key metrics)
- 05 - Team (bios, org chart, key employment agreements)
- 06 - Customers and contracts (anonymized if needed at early stages)
- 07 - IP and technology
- 08 - Additional due diligence (regulatory, compliance, insurance)
Step 3: set permissions before sharing
Don't give everyone full access. Use your platform's permission settings to:
- Require NDA sign-off before accessing the room
- Restrict sensitive folders (like cap table or board minutes) to serious investors only
- Set view-only access so documents can't be downloaded in early stages
- Enable watermarking so any leaked document can be traced
Step 4: create investor-specific links
If your platform supports it, create a separate link for each investor or firm. This tells you exactly who's engaging and how, which helps you prioritize follow-ups.
Step 5: monitor and act on analytics
Check your data room activity regularly during a live process. If an investor spent 45 minutes on your financial model, that's a signal. If they opened the deck once and never came back, that's a different signal. Use it to guide your conversations.
Common mistakes founders make with data rooms
After seeing a lot of fundraising processes, these are the patterns that slow things down or create problems.
Sharing too early
Don't send your data room link on the first email. Build conviction first. Share the data room when there's genuine interest, usually after a first or second meeting.
No version control
If you update a financial model mid-process and forget to replace the old file, investors might be looking at outdated numbers. Keep files current and remove old versions.
Ignoring the analytics
Your platform is telling you something with every page view and time-on-document metric. Use it.
Skipping the NDA gate
This matters more than people think. Even early-stage, having investors acknowledge an NDA before accessing your data room creates a paper trail and sets expectations.
Using generic file sharing tools
Dropbox and Google Drive are fine for collaboration. They're not built for investor due diligence. You can't watermark documents, set view-only permissions, or track time spent per page. Use the right tool.
Frequently asked questions
What is a virtual data room in investment banking?
A virtual data room (VDR) is a secure online platform used to share and manage confidential documents during financial transactions. In investment banking, it's used primarily for M&A due diligence, capital raises, IPO preparation, and debt financing. The buy-side gets controlled access to the sell-side's documents, with full tracking of who views what.
What is the best virtual data room for investment banking?
It depends on the deal size. For large M&A transactions, enterprise platforms like Intralinks, Datasite, and Venue are the industry standard. For startup fundraising and smaller deals, platforms like Ellty offer data room features including NDA gating, granular permissions, and document analytics at a lower cost - from $149/month for the Data Room plan. The best tool is the one that matches your deal complexity without overcomplicating your process.
How much does a VDR cost?
VDR pricing ranges from free (basic tracking and analytics) to over $2,000/month for enterprise M&A platforms. A typical mid-range data room for startup fundraising or smaller deals costs $100-$400/month. Ellty Data Room plan starts at $149/month and includes NDA gating, dynamic watermarking, and granular permissions with 3 users included. Watch out for per-user pricing on other platforms - it adds up fast.
What is a data room for startups?
A data room for startups is a secure place to organize and share company documents with investors during due diligence. It typically includes financials, incorporation documents, cap table, key contracts, and product information. The goal is to give investors what they need to make a decision while keeping sensitive data controlled and trackable. Most founders build their first data room during an active fundraise, usually when an investor has expressed serious interest.
What's the difference between a virtual data room and Dropbox or Google Drive?
Standard file-sharing tools don't give you the control features that due diligence requires. VDRs add things like view-only access, dynamic watermarking (which puts the viewer's identity on every page), NDA gating before access, per-user permissions by folder, detailed analytics on document engagement, and full audit logs. If a document leaks from a proper VDR, you can trace it. You can't do that with a shared Dropbox link.
What documents should I include in my data room?
For a seed-stage data room: pitch deck, basic financials and projections, cap table, incorporation documents, and key team information. For Series A and beyond, add full audited financials, all material contracts, IP documentation, detailed org chart and employment agreements, and product/customer metrics. For M&A, you'll need everything - full legal history, compliance records, real estate, insurance, and anything material to the business.
When should I set up a data room?
Before you need it. Most founders scramble to build their data room when an investor asks for it - which means they're building it under pressure, often missing things. Set up the basic structure during a quiet period, keep documents current, and you'll be ready to share within hours of any serious investor request. It also signals maturity to sophisticated investors when you can say your data room is ready.
How do I control who sees what in a data room?
Most VDR platforms let you set permissions at the folder or document level. You can give different access groups different visibility - for example, a general investor group sees the pitch deck and basic financials, while a lead investor in final diligence sees the cap table and contracts. Features like NDA gating, view-only access, and dynamic watermarking add additional layers of control. On Ellty, you can create separate trackable links per investor to monitor engagement individually.
Do I need a VDR for early-stage fundraising?
You don't strictly need one for pre-seed or angel rounds, where you're often sharing a deck and a few documents with a handful of people. But even at early stages, a VDR or tracking platform gives you useful signal - knowing that an investor spent 20 minutes on your deck and came back twice the next day is actionable information. A free plan with document tracking covers most early-stage needs. Upgrade to a full data room plan when you're in active due diligence with institutional investors.
What security features should I look for in a virtual data room?
At minimum: two-factor authentication, view-only and download restrictions, dynamic watermarking, NDA gating, and audit logs. For M&A-level security, add IP address restrictions, session time limits, and granular folder-level permissions. Also check whether the platform has relevant security certifications (SOC 2, ISO 27001) if your investors or their counsel will ask about compliance. Don't pay for certifications you'll never be asked about - but do know what your investors will expect.
The bottom line
A virtual data room isn't just a folder. It's a signal. How you organize your documents tells investors something about how you run your company.
If you show up to due diligence with a clean, well-organized data room, NDA gated, view-only permissions set, and current documents - you've already created a better first impression than most founders.
For large M&A, use purpose-built enterprise VDRs. For fundraising and smaller processes, there are solid tools in the $100-$400/month range that give you what you actually need.
Ellty data room features cover the core of what most startup founders need: fast setup, trackable links, analytics, NDA gating, watermarking, and secure access control. It's not built for multi-bidder M&A processes - but for founders managing an active fundraise, it does the job well without the complexity or cost of enterprise platforms.
Build your data room before you need it. Keep it current. Use the analytics. And share it when the time is right.
