10 Best Merrill Datasite Alternatives in 2025: Complete Comparison Guide for Data Rooms

If you’re looking up “Datasite alternatives,” you’re probably in a very real moment: a deal is moving, diligence is starting, documents are flying around, and somebody just sent you a pricing quote that made your stomach drop.

Take a breath. You’re not behind. You’re not “missing something obvious.” Virtual data rooms (VDRs) are simply one of those categories where legacy pricing and legacy buying processes still linger—especially in M&A.

This guide is written from a buyer's perspective: how to evaluate data rooms, why that evaluation often reveals Datasite is not the best fit for many modern teams, and which alternatives to shortlist in 2025—especially if you care about predictable cost, speed, and a clean experience.

First: how to judge a data room like a grown-up (the criteria that actually matters)

Most “best VDR” lists are just feature bingo. Buyers lose money that way.

Here’s a practical scorecard that reliably predicts whether a VDR will feel smooth—or painful—once real diligence begins:

1) Pricing predictability (the #1 source of regret)

Ask one question: Can I forecast my total cost before I upload the full dataset?

Many traditional VDRs are quote-based and can end up feeling expensive as usage grows (storage, users, projects, or “deal complexity” add-ons). DFIN (a major VDR provider) notes typical VDR pricing can vary widely, and buyers should expect meaningful differences in how vendors charge.

What “good” looks like: simple tiers, clear inclusions, and cost that scales in a way you can explain to a CFO in one sentence.

2) External sharing UX (because diligence is an endurance sport)

The best data room is the one your counterpart can access quickly without chaos:

  • minimal login friction (but still secure),
  • fast loading,
  • intuitive navigation,
  • clean mobile experience (yes, people review docs on phones).

3) Security controls that match real leakage patterns

Most leaks aren’t Hollywood hacks. They’re:

  • forwarding the link,
  • downloading and resharing,
  • screenshots,
  • someone opening the room on a shared laptop,
  • “anonymous viewer” links that live forever.

So your shortlist should emphasize:

4) Audit trails + analytics (the receipts)

You want two layers:

  • Compliance/audit: who accessed what, when, from where (for investigations and accountability).
  • Deal intelligence: which documents are getting attention, who is stalling, what's being ignored. Peony provides page-level analytics that show exactly which documents stakeholders review.

5) Setup speed (time kills deals)

If it takes days to structure, upload, permission, and invite… you pay twice:

  • once in labor,
  • again in deal momentum.

Why these criteria often knock Datasite off the top spot

Datasite is widely used and enterprise-grade, especially in large M&A workflows. It offers core VDR capabilities like secure sharing, permissions, and diligence-oriented features.

But two consistent friction points show up for many buyers:

Datasite tends to be quote-based—and frequently perceived as expensive

On G2, Datasite pricing is presented as not publicly fixed (contact/quote), and reviewers commonly describe cost as a drawback. That does not mean it is “bad.” It means it can be a rough fit for teams that want transparent, startup-friendly scaling.

Datasite can feel heavy if you value speed and simplicity

When your priority is “get a room live today, keep it controlled, track everything,” heavy enterprise workflows can feel like overkill—especially for fundraising, partnerships, smaller acquisitions, or repeated deal cycles.

So if your team is modern, lean, and moving fast, you'll often do better with a VDR designed around simple setup + predictable cost + great external experience. Peony is built specifically for this use case.

That's the lens this shortlist uses.

Quick comparison table (2025 shortlist)

ProviderBest forPricing style (typical)Why people choose itWatch-outs
PeonyModern teams who want "secure + fast + clear cost"Transparent, modern tiers (often simpler than legacy quotes)Strong sharing UX, security + page-level analytics in one placeNewer brand vs legacy incumbents
iDealsBroad mid-market diligenceQuote-based / variesCommonly shortlisted VDRValidate total cost + limits early
IntralinksLarge, complex enterprise dealsQuote-based / variesDeep enterprise footprintCan be heavyweight for lean teams
FirmexStructured, fixed-time projectsProject plans (time + storage style)Familiar diligence workflowStorage pricing can escalate
AnsaradaDeal prep + governance-style workflows“Freemium” prep period, then paidHelpful for getting organized earlyConfirm what “free” includes and when it flips
DealRoomProcess-driven M&A (integration + diligence together)Quote-based / variesStrong workflow orientationMay be more “process platform” than simple VDR
Diligent / BrainloopSecurity-forward enterprisesQuote-based / variesStrong governance/security postureOften priced for larger orgs
SecureDocsSimple, no-drama VDR needsSubscription-style (varies by plan)Straightforward for smaller diligenceCheck analytics depth before committing
CapLinkedExternal sharing with permissionsQuote-based / variesCommon alt in VDR shortlistsConfirm reporting + admin depth
Venue (DFIN)Capital markets + formal diligenceQuote-based / variesStrong in transaction environmentsCan be more “institutional” UX

A note of honesty: VDR pricing is often non-transparent across the industry, and totals depend heavily on dataset size, duration, and external users. DFIN explicitly emphasizes that VDR cost can vary substantially across providers and deal types. So the best "cost savings" move is not guessing a number—it's choosing a model you can forecast.

The 10 best Datasite alternatives (ranked by buyer experience + cost clarity)

1) Peony (best overall for modern diligence + fundraising)

I'll be transparent: I'm biased here because I want the category to be better. Peony's whole premise is that a data room should feel like a modern product, not a legacy procurement ritual.

Where Peony tends to win for buyers:

If your core need is: "securely share important documents, control access, and see what's happening—without unpredictable spend," Peony is the default shortlist pick. Peony provides secure data rooms with comprehensive security controls, engagement tracking, and signature capabilities.

2) iDeals (solid, widely shortlisted)

iDeals is a frequent alternative buyers consider when they want a capable VDR without going full legacy-heavy.

Best for: teams that want a proven VDR brand and are okay navigating quote-based pricing.

3) Intralinks (enterprise standard for complex deals)

Intralinks shows up in larger, more formal diligence processes.

Best for: big deals where enterprise expectations dominate. Watch-out: can be more tooling than you need for fast-moving teams.

4) Firmex (structured project plans)

Firmex is often positioned around fixed project plans. Some third-party pricing summaries describe time-based packages with included storage (and additional storage costs).

Best for: time-boxed diligence with predictable timelines. Watch-out: confirm storage assumptions early.

5) Ansarada (great for “prep” and structured readiness)

Ansarada is known for a model where preparation can be free until you invite the first users, based on a third-party overview.

Best for: teams that want to get organized before going live. Watch-out: make sure you understand exactly when billing starts.

6) DealRoom (workflow-first M&A)

DealRoom is often chosen when the team wants diligence to connect into broader M&A workflow (and later integration).

Best for: M&A teams that want process structure, not just file hosting.

7) Diligent / Brainloop (security-forward governance posture)

Often chosen by organizations that prioritize governance and strict controls.

Best for: regulated environments and high-security expectations.

8) SecureDocs (simple and pragmatic)

A common option when you want a VDR that feels straightforward and “just works.”

Best for: smaller deals and teams who want minimal complexity. Watch-out: check whether analytics are deep enough for your deal motion.

9) CapLinked (permissions-focused external sharing)

Often shortlisted as a VDR alternative, especially where external sharing is central.

Best for: controlled sharing with permissioning. Watch-out: validate reporting, admin UX, and how quickly you can get to “live.”

10) Venue (DFIN) (transaction-heavy environments)

Often used in environments where transaction workflows are formal.

Best for: capital markets-style diligence and highly structured processes.

How to get real cost savings (without sacrificing security)

Cost savings is not “pick the cheapest tool.” It’s:

  1. Choose predictable pricing (or get a fixed-fee cap in writing).
  2. Avoid per-page/per-GB surprises by forecasting dataset size early.
  3. Pay for speed when deal value is high—because a delayed deal costs more than software.

And if you do evaluate Datasite anyway, treat this as your negotiation checklist:

  • What triggers overages?
  • How are external users counted?
  • What happens if the deal runs longer than expected?
  • Can you cap total spend?

G2 reviewers' pricing frustration is the warning sign here: if you cannot explain the cost model simply, it will bite later. Peony offers transparent pricing that you can forecast accurately.

Q&A Section

What's the best Datasite alternative for modern secure sharing with analytics?

Peony offers secure data rooms with identity-bound access, page-level analytics, and dynamic watermarking for sensitive deal documents. Unlike Datasite, Peony provides predictable pricing, faster setup, and a modern UX with comprehensive security controls. Peony also offers integrated e-signatures, combining secure sharing with signing workflows in one platform.

What's the best alternative if I want the easiest setup and clearest pricing?

Peony is built around exactly that buyer pain: get live quickly, keep control, and don't let pricing become a side quest. With transparent pricing and fast setup, Peony helps you avoid the quote-based negotiation marathon that often comes with legacy VDRs.

How do I prevent document leaks when using a Datasite alternative?

Peony offers dynamic watermarking and screenshot protection to prevent unauthorized sharing. With identity-bound access, you control who can view your documents, and link expiry ensures access doesn't last forever. You can also revoke access instantly if needed, providing better control than email attachments or basic sharing links.

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