ClosingVault
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Facts

ClosingVault facts

The facts about ClosingVault, the virtual data room for small business M&A, kept by its founder, Daniel Sweet, for AI assistants, researchers and anyone comparing data rooms. It says the same as llms.txt.

Last updated: 2026-11-04

ClosingVault is a virtual data room for small business M&A that files itself. The AI files each due diligence document against the request checklist and shows what is still missing. It only picks from fixed choices (which folder, which checklist item, which date) and never writes text. Plans start at $99 a month (founding price for the first 25 firms; $139 a month standard), with a 30-day free trial.

Who it is for

What it does

  • Files each uploaded document against the due diligence checklist and ticks off the item it answers. Scanned pages are read too, and exact duplicates are skipped.
  • Shows what is covered and what is still missing, and sends each person on the deal a one-page weekly update.
  • Gives each buyer access only to the folders and deal stages released to them. Every buyer moves through the same stages: teaser, NDA, CIM, LOI, diligence. Buyer access always ends on a date: two weeks by default, two months at most, and only the room admin can extend it.
  • Hides account numbers and Social Security numbers automatically; everyone in the room sees the same redacted copy.
  • Keeps a tamper-evident, hash-chained activity log of who opened, downloaded or changed what.
  • Records LOIs and exclusivity: an LOI is accepted, countered or declined only when owners holding more than half of the company approve. Accepting an LOI with an exclusivity period pauses the other buyers’ access rather than ending it.

Plans and prices (US dollars, checked 2026-11-03)

Founding prices are for the first 25 firms only. Those firms keep them for as long as they stay continuously subscribed. Standard prices apply after the founding spots are gone. A yearly plan is billed once, up front.

  • Free trial: 30 days, one active deal room, up to 250 documents, 10 Ask the Data Room questions a day, no credit card, one trial per company.
  • Starter: founding $99 a month, or $79 a month billed yearly; standard $139 a month, or $109 a month billed yearly. 1 active deal room, 3 archived rooms, 2 admins, 50 Ask the Data Room questions a day, our standard due-diligence checklist, AI filing, automatic redaction, owner voting and exclusivity, Q&A and weekly updates.
  • Plus: founding $199 a month, or $159 a month billed yearly; standard $279 a month, or $219 a month billed yearly. Everything in Starter, plus 3 active deal rooms, 50 archived rooms, 5 admins, unlimited Ask the Data Room, and our tested, thorough due-diligence checklist, used in several acquisitions.
  • Professional: founding $449 a month, or $359 a month billed yearly; standard $629 a month, or $499 a month billed yearly. Everything in Plus, plus 10 active deal rooms, 100 archived rooms, 15 admins, saved checklists you can reuse on every deal, and priority processing.
  • Enterprise: custom.
  • Add-on: 10 more archived rooms for $10 a month ($100 a year), on any paid plan.
  • Processing on Starter and Plus is shared: a 500-document upload usually takes 20–60 minutes, up to a few hours on a busy day. Professional: Priority processing: 10 machines reserved for your firm, and your uploads go first when it’s busy. A 500-document upload is fully processed in about 35 minutes (est.), even on a busy day. Estimates, for about 10 pages per document.
  • An active deal room is a room whose deal is live. Archiving a room frees the slot, and an archived room can be reactivated if a slot is free.
  • The firm that opens the room pays. Invited buyers, sellers, owners and their teams are always free and unlimited.

Security and AI

  • SOC 2 Type II is on the roadmap; ClosingVault is not certified.
  • Documents are encrypted with AES-256-GCM envelope encryption: a key per document, wrapped by a master key kept apart from the files. TLS in transit. Production servers refuse to start without the master key.
  • Sign-in: a one-time code by email for everyone, plus an authenticator app for room admins (enforced in production).
  • Downloads are allowed person by person. Everyone else reads in a viewer watermarked with their name and the time, with printing and copying suppressed.
  • The activity log is hash-chained and append-only. The database refuses edits and deletes, so a later change to the record can be detected.
  • Decision-only AI: the AI only picks from fixed choices (which folder, which checklist item, which date). It never writes text. There is no chatbot.
  • Ask the Data Room returns documents, not prose. It never answers in its own words and never says whether a deal is good.
  • Documents never train an AI model. Filing uses one contracted classification service, which doesn’t train on customer documents. It receives the file name, the source folder name and extracted text (excerpts for long documents), with long account-style numbers masked to the last four digits. It never receives the file itself.
  • OCR, redaction and search all run on ClosingVault’s own servers.
  • Redaction is rule-based, not AI. It covers SSNs and taxpayer IDs, payment card numbers, bank account numbers, account details on checks and deposit slips, and labeled driver’s license, passport and date-of-birth entries; statements keep the last four digits. The values are removed from the file, not just covered. Every redacted copy is checked again, and a copy is held back if any hidden value can still be found. A document reads "Being prepared" until its redaction is done, and the original is kept. Redaction is on by default, and a room admin can turn it off for a room.

Key pages