Guide
Choosing a virtual data room for an M&A deal
Updated
A data room is bought once and used by people who did not choose it. That, more than any feature list, is what should drive the decision.
Count the users on the right side
Every provider that publishes limits distinguishes between the two sides of the deal, and the distinction is where budgets go wrong. Virtual Vaults caps sell-side users at 3 on Basic, 7 on Standard and 15 on Advanced, while buy-side users are unlimited on every plan. Ansarada separates internal (sell-side) users from external (buy-side) ones in its team setup. Admincontrol states unlimited sell-side and buy-side users on its data room subscription. Onehub, by contrast, charges $25 per additional user, or $20 billed annually, above the five included.
On a competitive auction the buy-side headcount is the number that runs away from you: five bidders with three advisers each is not unusual. On a bilateral deal it is the sell-side seat cap that bites, because your lawyers, accountants and corporate finance adviser all want to be inside the room.
Q&A is the module that decides how the deal feels
- CapLinked describes EZ Q&A with automated question routing, assignment to experts, reusable FAQs and real-time progress tracking.
- Virtual Vaults publishes Q&A on every tier, with threads, a Q&A freeze, duplicate question detection, and an approval flow and limits and priorities on the higher tiers.
- Drooms describes setting up complex Q&A processes with various approval levels, on its paid tiers.
- Ideals lists standard Q&A management on Core, with custom reports on request from Premier.
- Datasite describes Q&A drafting inside the room, with AI scoped to each buyer's permissions.
- Ansarada lists a streamlined Q&A module; DealRoom lists collaborative Q&A under due diligence.
- Not described on the pages we read: Onehub's pricing page and Firmex's pricing and security pages do not name a Q&A module.
The preparation phase is where the money is saved
Most deals spend longer being prepared than being run. Two providers price that explicitly. Admincontrol sells a preparation portal at £250 a month with unlimited sell-side users and no storage limit, separately from the £685 a month data room. Ansarada states the room is free until it goes live or 90 days after creation, whichever comes first. Drooms' free Starter tier and Firmex's always-on subscription, which it describes as letting you "maintain your information in a ready-to-share state", solve the same problem differently.
Ask what happens at close
- The archive. Virtual Vaults publishes archive add-ons at £199 per USB drive with a comfort letter and £50 per cloud archive recipient. Drooms describes a read-only cloud archive preserving documents and audit trails in their final state. Ideals lists USBs and downloadable project archives on its entry plan.
- The export. Admincontrol publishes an export charge of £250 for the first export and £100 for each additional one. CapLinked lists one-click archiving and USB backup of workspaces. Ask before signing, not at completion.
- The audit trail. This is the record that answers who saw what and when, and it is the thing most likely to be needed a year later. Check it survives the archive rather than the subscription.
- The term. A three-month plan on a deal that slips is an expensive kind of optimism. SecureDocs prices its 3-month plan at $400 a month against $250 on the 12-month, which is roughly the cost of that optimism.
The things a comparison table cannot tell you
Whether the room is navigable at midnight by a lawyer who has never seen it before. Whether bulk upload preserves your folder structure or flattens it. Whether the support line answers during your working day, wherever the provider is. Whether the AI features are useful on your document set or merely present. Ask for a trial with your own documents in it, and get somebody who will be on the buy side to try it, not the person who is buying it.