There is a more uncomfortable finding underneath that. We read the public pricing pages of ten data room vendors on 4 August 2026, and not one published a per-page rate on its own site. Every per-page figure circulating in this market is a third-party estimate of somebody else's contract. The model everyone argues about is one nobody quotes.
One process, five pricing models
Take a hypothetical sell-side process. It opens with 4,000 pages and closes with 6,500, because the request list grew. Thirty people across four counterparty groups. Four months, one longer than the timetable said. Nothing about that is unusual. Now run it through each model.
| Criterion | Billed on | What this process costs | What moves the number after you sign |
|---|---|---|---|
| Per pageSource: intralinks.com/billingterms/english, checked 4 August 2026 | Pages uploaded | Not computable from public information. None of the ten vendors we checked publishes a per-page rate on its own site. Intralinks' published billing terms do define uploaded pages as a billable unit, with the rate left to a per-customer Work Order. | Every re-upload. A 40-page contract revised three times can be counted as 160 pages, not 40. And nobody can tell you what a 3,000-row spreadsheet costs until you know whose paginator counts it. |
| Per named userSource: onehub.com/pricing, checked 4 August 2026 | Seats | Onehub publishes $12.50 per additional user per month on its annual Standard plan, above three included users. Twenty-seven additional seats is $337.50 a month, or $1,350 across four months, before the base plan. | The counterparty's headcount. You do not control the buy side, and week six is when they add their tax advisers. |
| Storage tierSource: ansarada.com/article/pricing-guide, checked 4 August 2026. Ansarada's own /pricing page shows no numbers. | Peak megabytes | Depends on a fact you do not have at signature. Ansarada publishes a monthly-term rate card running from $479 a month at 250 MB to $8,579 a month at 20 GB, with overage from $159 per 50 MB per month. | Scan quality. The same 6,500 pages weigh one thing born digital and something else entirely scanned at 300 dpi, and the gap is tiers rather than rounding. Ansarada publishes that room size is captured at peak usage during the billing period, so one afternoon of uploading sets the month. |
| Quote onlySources: intralinks.com/guides/intralinks-pricing, datasite.com/en/resources/faqs/how-much-does-datasite-cost, idealsvdr.com/virtual-data-room-pricing, firmex.com/pricing, all checked 4 August 2026 | Whatever the work order says | Unknown before a sales call. Intralinks, Datasite, iDeals and Firmex publish no price. Intralinks states pricing is “customized to meet the specific needs of your deal”. Datasite states pricing is “customized for every transaction”. | Everything, until the work order is signed. After that, whatever the work order chose to meter. |
| Flat planSifrsys published plans | The plan | $399 a month on Teams is $1,596 across four months. $999 a month on Pro is $3,996. No per-page fee at any point, and no charge per additional seat: each plan includes a set number of seats instead. | The plan tier, and only in published steps. Teams includes 1 GB and 5 team members, Pro includes 5 GB and 20. A scanned archive or a sixth colleague can move you up one step at a price you could read before you signed. Nothing meters. |
Only one row in that table can be filled in before the process starts. That is the entire argument, and it holds whether or not you buy from us.
Why diligence defeats a meter
At the moment you sign, you do not know how long the request list will grow, how many revisions each document will go through, how many advisers the counterparty will add in week six, or whether the seller's archive was born digital or scanned. You do not know how long the process will run, and it will run longer than the timetable says.
Every variable in a metered data room contract is one the buyer cannot forecast and the seller cannot control. That is not an argument against usage pricing everywhere: it is fair where usage is a choice. In diligence, usage is a consequence of somebody else's questions, and pricing a consequence is how a $6,000 line item becomes a $40,000 one with nobody having made a decision. The seller's archive usually arrives after signature, which is when you find out what it weighs.
Seven questions that produce a real number
Ask these of any vendor, including us, and get the answers into the contract rather than an email from an account executive who may not be there in November.
1. What is the billable unit, in one sentence? Pages, megabytes, seats, rooms, or a plan. If the answer takes a paragraph, there is more than one meter.
2. If pages: counted on upload or on storage? On upload means replacing a revised contract bills you again for the same document. Ask what a replaced version costs.
3. If pages: how is a spreadsheet paginated?A workbook has no natural page count. Whatever number appears on your invoice came out of the vendor's own paginator, and you should see that number on a sample file before you sign.
4. If megabytes: measured at peak or at period end? Peak measurement means one afternoon of uploading a scanned archive sets the bill for the month even if you delete it that evening. Ansarada publishes that it measures at peak. Most vendors publish nothing, which is not the same as measuring at period end.
5. If seats: are guests and administrators billed? The counterparty controls its own headcount. If their people are billable, you have signed a contract whose price the other side of the table sets.
6. What is the overage rate, in writing, before signature? Not the included allowance. The rate that applies past it. Ansarada publishes overage rates starting at $159 per 50 MB per month. If a vendor will not put an overage number in the contract, the contract has an open-ended term in it.
7. What is the minimum term, and can I step down inside it? Ansarada publishes that plans can be upgraded or downgraded only at the end of the contracted term. A tier you can enter but not leave is a ratchet.
Price the model, not the quote
A quote is a snapshot of assumptions that a diligence process is designed to break. Ask the seven questions, write the answers into the contract, then compare worst cases rather than headline numbers. A vendor whose worst case is $4,000 beats one whose best case is $2,500 and whose worst case nobody will state.
Sifrsys charges no per-page fee, publishes its plans on the pricing page, and carries a price-lock guarantee: no surprise mid-contract increases and 90 days notice of any change. The 14-day trial takes no credit card, which is long enough to upload a real document set and find out what your archive weighs before it becomes a billing question.
Before you sign, the security checklist covers what matters once price is settled, and migrating between data rooms covers what a mid-process switch costs in work, the hidden price of getting the first choice wrong. If a vendor's access record is part of your diligence defence, check what its audit trail records too.