PE funds, strategic acquirers, investor deal teams
Data rooms for buy-side due diligence
The buyer reads the seller's room, but its own work needs a home too: adviser reports, the model, lender materials and the investment committee pack.
A buy-side room collects what the investor produces: financial, legal, commercial and technical diligence reports, management meeting notes, the model and the IC memo. It is shared with lenders, co-investors and sometimes insurers for warranty and indemnity cover.
Its users are the buyer's team and its advisers, so the room focuses on collaboration, versioning and controlled sharing outward.
What matters most: Collaboration with advisers and controlled sharing with lenders and insurers.
Best data rooms for buy-side due diligence
Checked October 2026. Scores re-weighted for this use case.
Investor access control 24% / Diligence workflow 27% / Security and compliance 19% / Speed to launch 16% / Cost clarity 14%
- 1
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.
- Price$149/mo
- Trial14-day free trial
- SecuritySOC 2 (hosting)
- Investor controls5 of 6
- 2
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.
- PriceQuote
- TrialDemo on request
- SecuritySOC 2, ISO 27001, GDPR
- Investor controls6 of 6
9.1/10 Read review - 3
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.
- PriceQuote
- TrialFree trial
- SecuritySOC 2, ISO 27001, GDPR
- Investor controls6 of 6
9.0/10 Read review - 4
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.
- PriceQuote
- TrialFree trial
- SecuritySOC 2, ISO 27001
- Investor controls5 of 6
8.8/10 Read review - 5
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.
- PriceQuote
- TrialDemo on request
- SecuritySOC 2, ISO 27001
- Investor controls6 of 6
8.6/10 Read review - 6
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.
- PriceQuote
- TrialDemo on request
- SecuritySOC 2, ISO 27001, GDPR
- Investor controls6 of 6
8.6/10 Read review - 7
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.
- PriceQuote
- TrialFree trial
- SecuritySOC 2, ISO 27001
- Investor controls6 of 6
8.5/10 Read review - 8
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.
- PriceQuote
- TrialFree trial
- SecuritySOC 2, ISO 27001
- Investor controls5 of 6
8.2/10 Read review - 9
Best for: Permission-heavy processes
A security-focused room with Q&A, redaction and fine-grained permissions, ISO 27001 and SOC 2. Quote only.
- PriceQuote
- TrialDemo on request
- SecuritySOC 2, ISO 27001
- Investor controls6 of 6
8.2/10 Read review - 10
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.
- Price$299/mo
- TrialFree trial
- SecuritySOC 2
- Investor controls5 of 6
7.9/10 Read review
Ranks 11 to 16: ShareVault (7.7), SecureDocs (7.6), Citrix ShareFile (7.6), Venue by DFIN (7.4), Digify (6.4), DocSend (5.8).
- 01Adviser reports
Financial, tax, legal, commercial, IT reports - 02Model
Base and downside cases, returns analysis - 03IC
Memos and IC minutes - 04Financing
Lender presentations, term sheets - 05Insurance
W&I underwriting materials
Must-have features
Q&A module
Investors ask questions inside the room; your team assigns, answers and publishes them, with a record of every reply.
View and download rights
Per-file rules for view, print and download, including view-only access that can be withdrawn.
Activity log
A log of which investor opened, downloaded or printed each file and for how long, ready to export.
Viewer watermarks
Each page shows the viewer's name or email and the time, so a leaked copy traces back to one person.
Single sign-on
Your team signs in with company credentials through an identity provider such as Okta or Entra ID.
| Data room | Q&A module | View and download rights | Activity log | Viewer watermarks | Single sign-on | Price |
|---|---|---|---|---|---|---|
 Ellty | $149/mo | |||||
 Datasite | Quote | |||||
 iDeals | Quote | |||||
 Ansarada | Quote | |||||
 Intralinks | Quote | |||||
 Drooms | Quote | |||||
 Firmex | Quote | |||||
 DealRoom | Quote | |||||
 SmartRoom | Quote | |||||
 CapLinked | $299/mo | |||||
 ShareVault | Quote | |||||
 SecureDocs | $250/mo | |||||
 Citrix ShareFile | $55/mo | |||||
 Venue by DFIN | Quote | |||||
 Digify | $120/mo | |||||
 DocSend | $45/user/mo |
Step by step
How to run the room
- Set up workstreamsOne folder and group per adviser.
- Version the modelDated versions with case names.
- Share outward with careLenders and insurers get view-only access to final reports.
- Keep the IC recordArchive memos and minutes for the fund's records.
Avoid
Common mistakes
- Draft reports shared with lenders.
- Models emailed without version control.
- IC materials kept in personal drives.
Buy-side due diligence data room FAQ
What is a buy-side data room?
A room the buyer runs for its own diligence work and for sharing results with lenders, co-investors and insurers.
Who uses a buy-side room?
The deal team, its advisers, lenders, co-investors and W&I insurers.
Is it the same as the seller's room?
No; the seller's room holds the target's documents, the buyer's room holds the buyer's analysis.