LockRoom vs Datasite

The Datasite vs LockRoom decision is not a feature checklist. Both platforms cover SEC 17a-4 audit retention, granular permissions, watermarked previews, Q&A workspaces, and standard M&A folder templates. The decision is about pricing model, deal size, and brand fit.

This page lays out what each platform actually charges in 2026, how the audit logs and compliance compare, and which firm should use which. Sources: vendor websites, G2, Capterra, Vendr, and the SRS Acquiom Deal Terms Study (3,800+ deal analysis).

The pricing comparison

LockRoom: $6,000 a year flat for unlimited rooms, unlimited users, unlimited storage. Or $375 a month for a single room. No per page fees, no per user fees, no hidden charges on Excel or video files.

Datasite: Subscription plus per page billing at approximately $0.60 per page. Typical annual cost $25,000 to $100,000 per deal, average $68,000, maximum observed $190,000. Hidden fees on Excel files, video, audio, CAD files, user seats, project extensions, and data volume overages compound the base.

Feature comparison at boutique IB scale

Audit logs and compliance

Both platforms cover the basics that broker-dealers need.

SEC Rule 17a-4: Both LockRoom and Datasite preserve communications and transaction records for the regulatory 6 year window. Both produce exportable audit logs in PDF and CSV.

FINRA Rule 4511: Both meet the books and records requirements for FINRA member firms.

Audit log granularity: Datasite logs user-level and page-level activity with timestamp and IP. LockRoom logs page-level activity, IP addresses, search queries, and print blocked events. Both export to PDF and CSV. For R&W carriers, both produce the same defensible record.

Where they differ: Datasite is ISO 42001 AI governance certified (relevant if you run AI features on the data room). LockRoom is not ISO 42001 certified but does not run AI on customer documents either, so the certification gap is moot unless you're specifically buying for AI workflows.

When Datasite is the right choice

Three scenarios where Datasite earns its premium:

• Deals over $250M. At that scale, the per page math is a rounding error against deal value. Buyer brand recognition of "Datasite" can affect deal pace with bulge bracket counterparties.
• Highly competitive auctions with 50+ buyers. Datasite's DealCentre AI suite offers AI bidder engagement scoring and auto translation that helps banks running global processes at scale.
• Enterprise contracts that smooth per page billing. Some banks have volume contracts that effectively cap Datasite's per page costs. If your firm has one, the math can work.

When LockRoom is the right choice

Three scenarios where LockRoom is the obvious pick:

• Boutique investment banks running 4 to 12 deals a year. The flat annual rate at $6,000 is dramatically cheaper than $200K to $800K of per page billing across the same deals at Datasite.
• Lower middle market sell side ($5M to $250M). Built for the workflow: MD-led firms, simple deal flow, predictable cost the firm can pass through to clients.
• Cost-conscious advisors who can't justify per page surprises. When the firm bills VDR cost through to clients, the seller wants a number that matches the engagement letter. Flat pricing makes that conversation easy.

The decision framework

If your average deal size is over $250M, use Datasite. The per page math doesn't matter and the brand recognition does. If your average deal size is $5M to $250M and you run 4 or more deals a year, LockRoom is the lower cost, more predictable choice. If your average deal size is $5M to $250M and you run 1 to 2 deals a year, either platform works but Firmex or SecureDocs deserve a look too.

Related comparisons

• Full VDR comparison: every major platform side by side
• Virtual Data Room Pricing 2026: What Boutique Banks Actually Pay
• The data room boutique sell side actually uses
• LockRoom pricing