Build the index in a day
Upload the folder tree in one go, number it, and set view-only on the cap table and contracts.
About usHow we scoreReview processAffiliate noticePrivacyTermsContact
Independent reviews of the virtual data rooms used for fundraising, VC and PE due diligence, M&A and fund raises. We score 16 platforms on what investors check first.
Folders, permissions, watermarks and a log of who read what: the four things a data room adds to a shared drive.
Best data rooms for investors
All 16 data rooms, scored out of 10 on five investor criteria. Checked October 2026.
Best for: Fundraising, M&A and investor reporting
A full virtual data room with Q&A, watermarks, view and download rights, an activity log, e-signature and AI help, on a published monthly price with a 14-day free trial.
Best for: Sell-side M&A and PE buyouts
A long-established M&A data room with ISO 27001 and SOC 2, redaction, SSO and a public API. Quote-based pricing with a free trial.
Best for: Bank-led auctions and large M&A
The large-deal incumbent used by many investment banks, with AI tools, SSO, redaction and a mobile app. Quote only, no free trial.
Best for: Deal preparation and M&A
An Australian deal platform with AI tools, Q&A, SSO and ISO 27001, plus deal-readiness features. Quote based, free trial available.
Best for: Mid-market M&A and legal teams
A mid-market favourite from Canada with Q&A, redaction, ISO 27001 and an easy interface. Quote based, free trial.
Best for: Real estate portfolios and European deals
A German data room with deep roots in European real estate, AI tools, redaction and ISO 27001. Quote only.
Best for: Regulated and capital-markets deals
A capital-markets and M&A veteran with ISO 27001, SOC 2, SSO and redaction. Quote only, demo on request.
Best for: Permission-heavy processes
A security-focused room with Q&A, redaction and fine-grained permissions, ISO 27001 and SOC 2. Quote only.
Best for: Corporate development pipelines
A data room plus M&A project management for corporate development teams. Q&A, ISO 27001, quote based with a free trial.
Best for: Ongoing investor file sharing
A business file-sharing platform with data room features, e-signature, SSO and a mobile app, from $55 a month. No Q&A module.
Best for: Smaller asset sales and raises
A published-price room from $299 a month with Q&A, a public API and file-level rights. SOC 2.
Best for: Quick, flat-priced rooms
A flat-rate room from $250 a month with Q&A, e-signature and an API, aimed at quick setup. SOC 2.
Best for: Life sciences and IP deals
A secure room popular in life sciences licensing, with Q&A, SSO and ISO 27001. Quote based with a free trial.
Best for: IPOs and public company deals
DFIN's data room, tied to its filing services and used around IPOs and public deals. Q&A and redaction, ISO 27001. Quote only.
Best for: Tracked document sharing
Document tracking and file protection from $120 a month, with watermarks and file-level rights. No Q&A module.
Best for: Sharing a pitch deck
Pitch-deck sharing with page-level analytics and e-signature, priced per user. Not a full diligence room.
How it runs
Upload the folder tree in one go, number it, and set view-only on the cap table and contracts.
Teaser folders for first meetings, full diligence only for the leads who ask for it.
Run Q&A in the room, close the round, and keep an archive for the next one.
Folder and file permissions per investor group, view-only files, watermarks with the reader's name and 2-step login. Access can be withdrawn at any time, even after a file was opened.
How to set investor permissionsA numbered index, bulk upload that keeps your folder tree, a Q&A module that routes each question to the right person, and AI help to index documents. 13 of the 16 rooms list Q&A; 4 list AI help.
Compare featuresAn activity log by investor, file and page shows who is serious before term sheets arrive. After closing, the archive is your record of what was disclosed. 11 of the 16 rooms also hold ISO 27001.
Read the reviewsWhat a virtual data room is


A virtual data room is a secure website where a company shares confidential files with investors. You decide who sees each folder, every page carries the reader's name, and you can see exactly who opened what.
| What you need in diligence | Virtual data room | Google Drive or Dropbox | |
|---|---|---|---|
| Per-investor folder access | Yes | Partly, by share link | No |
| View-only, no download | Yes, per file | Limited | No |
| Watermark with the reader's name | Yes | No | No |
| Log of who read which page | Yes, exportable | Basic | No |
| Q&A with assigned answers | 13 of 16 rooms | No | Long threads |
| Access removed in one click | Yes | Per link | No, files stay in inboxes |
Feature comparison
The six investor controls plus single sign-on, AI help and pricing, as listed by each vendor.
| Data room | Viewer watermarks | View and download rights | Activity log | 2-step login | Q&A module | Redaction in the room | Bulk upload | Single sign-on | AI help | Price |
|---|---|---|---|---|---|---|---|---|---|---|
| $149/mo | ||||||||||
| Quote | ||||||||||
| Quote | ||||||||||
| Quote | ||||||||||
| Quote | ||||||||||
| Quote | ||||||||||
| Quote | ||||||||||
| Quote | ||||||||||
| Quote | ||||||||||
| $55/mo | ||||||||||
| $299/mo | ||||||||||
| $250/mo | ||||||||||
| Quote | ||||||||||
| Quote | ||||||||||
| $120/mo | ||||||||||
| $45/user/mo |
Use cases
A VC fund uses a data room in two directions: to review startups before investing, and to share its own fund documents with limited partners. Fund rooms are read by many LPs at once and stay open for months; per-investor permissions and a clean activity log matter more than raw storage.
Private equity firms are the heaviest data room users there are: on the buy side for every bid, on the sell side at exit, and with LPs for each new fund. Competitive auctions need bidder groups that cannot see each other, staged disclosure and a Q&A module that handles hundreds of questions without a spreadsheet.
Investors expect a tidy data room the moment they say they are interested. A good one shortens diligence; a messy one raises questions about how the company is run. A raise lasts weeks, not years. Speed to launch, a clear price and per-investor tracking count more than enterprise extras.
In an M&A process the data room is where the deal is won or lost on detail: hundreds of documents, several bidders and a timetable set by the seller. Sell-side processes run on bidder separation, staged disclosure and a Q&A workflow; any gap here creates legal risk.
Hedge funds use data rooms to answer the operational due diligence that pension funds, endowments and funds of funds run before they allocate. Allocators run a formal security review; view-only access, watermarking and certified hosting decide whether the room passes.
Before a listing, underwriters, their counsel and the auditors run diligence that is wider than most M&A deals, against a fixed timetable. Listing diligence is evidence work for a prospectus; versioning, search and a durable audit trail matter more than price.
Property deals carry heavy files: leases, title reports, surveys and plans. Investors and lenders need all of it in one place, organised by asset. Volume and structure decide here: bulk upload with folder numbering per asset, fast search and AI indexing save the most time.
How a room is organised
Investors expect ten numbered folders, from company records to Q&A. A clean index tells them the company is well run before they read a single contract, and it cuts the questions you will get.

Investors forgive a missing document. They are much less forgiving when the cap table in the room does not match the signed papers, or when the model in the deck does not tie back to the accounts.
Who needs one
Share the cap table, model and contracts with a lead investor, see who reads them, and answer questions once.
Work through a seller's room, collect diligence reports and share them with the investment committee and lenders.
Give limited partners the PPM, track record and DDQ with view-only access and a record for compliance.
Separate bidders, stage disclosure and run hundreds of questions through one Q&A process.
Keep a frozen record of what was disclosed, attached to the disclosure letter or the closing set.
Read offering documents, audited statements and the DDQ in one controlled place.
Deal types we cover: seed and venture rounds, fund raises, buyouts and exits, M&A, hedge fund allocations, IPOs and real estate. See the use case rankings.
How to choose
Security and compliance basics
11 of the 16 rooms list ISO 27001 and all 16 list SOC 2 in our facts file. Each review shows which.
Pricing
6 of the 16 publish a price. The rest quote per project, usually by users, storage and months.
| Pricing model | How it works | Typical for |
|---|---|---|
| Flat monthly | One price for the room | Raises, smaller deals |
| Per user | Each sender pays a seat | Deck sharing tools |
| Per page or per GB | Billed on volume, often with overage | Older enterprise contracts |
| Per project | Quoted for one deal and term | M&A, PE auctions, IPOs |
Published monthly prices
Entry price per month. Per-user plans are shown for a team of three.
Quote only, no published price (10): iDeals, Datasite, Ansarada, Firmex, Drooms, Intralinks, SmartRoom, DealRoom, ShareVault, Venue by DFIN. Prices are indicative and change; check the vendor before you buy.
Common mistakes
Give first-meeting investors a teaser folder; open contracts and the cap table to leads only.
Investors waste time and send questions you already answered. Use a numbered index.
Every SAFE, note and option grant should tie to a signed document in the room.
Answers get lost and different investors get different versions. Keep Q&A in the room.
Volume pricing on a document-heavy deal can double the bill. Ask for a flat or capped price.
Remove investors who passed and set expiry dates; archive the room at closing.
How we rate
We score each room from vendor documentation, published prices and security attestations. Investor access control carries the most weight, followed by the diligence workflow. Prices and features are rechecked every month.
Read the methodHow the score is built
Latest articles

A practical permission plan for a raise, a fund room or a sale: groups, levels, staged folders and the settings people forget.

Allocators back the investment team, but they check how the fund is run first. This is the operational due diligence pack and how to share it.

From the first partner meeting to money in the bank: what a VC checks at each stage, how long it takes and which files they open first.
FAQs
A secure online space where a company or a fund shares confidential documents with investors during a raise, a sale or a fund review. It controls who sees each file, adds watermarks, records every view and keeps questions and answers in one place.
In our October 2026 ranking Ellty scores 9.1/10 and iDeals 8.7/10. The right choice depends on your deal: see the use case rankings for venture capital, private equity, fundraising, M&A, hedge funds, IPOs and real estate.
6 of the 16 rooms we review publish a price, from $45 per user a month to $299 a month for a full room. Quote-only vendors usually charge from about $500 a month for a seed round to over $5,000 a month for a large auction. Our cost calculator compares all 16.
For a first look at a deck, yes. For diligence, shared drives cannot stop downloads per person, watermark pages, run a Q&A process or give you a reliable log of which investor read what, and many institutional investors will ask for those controls.
Corporate records, the cap table and past round documents, financials and the model, customer contracts, IP assignments, team and HR files, and legal and compliance records. Our due diligence checklist lists them by stage.
No, partners cannot buy a position. We may earn a commission when a reader buys through some links; the scores come from the method on our how we score page.
We recheck vendor prices, certifications and features every month and when a vendor tells us about a change. The date at the top of the ranking shows the last check.
Find a data room for your deal
Five questions, three matches from our scores.Matching 16 data rooms to your answers
We use analytics cookies to see which reviews and tools people use. You can or read the privacy information.