Head to head

Firmex vs Onehub

Firmex scores 8.8 out of 10 in our testing and Onehub scores 7.7. Firmex is built for mid-market M&A, legal and diligence projects, while Onehub suits budget-conscious SMBs and client portals. On certifications, Firmex lists SOC 2 and ISO 27001 and Onehub lists SOC 2. This head-to-head breaks down how the two virtual data rooms differ on score, security, pricing and deployment, so you can match the right platform to your deal.

Last updated by the Data Room Reviews editorial team. Pricing is indicative USD; confirm current figures with the provider.

Firmex
8.8/10

Reliable, straightforward VDR trusted across mid-market deals.

  • From Custom
  • Free trial Yes
  • Security SOC 2, ISO 27001
  • Deployment Cloud
Onehub
7.7/10

Affordable secure workspace with data-room capabilities.

  • From $15/mo
  • Free trial Yes
  • Security SOC 2
  • Deployment Cloud

The quick verdict

Firmex is the stronger virtual data room for genuine deal work, M&A, legal and due diligence, thanks to ISO 27001 certification, structured Q&A and a longer support track record. Onehub wins for budget-conscious SMBs and client portals that want published pricing from $15/mo and a workspace that doubles as a light data room. Pick Firmex when the deal is serious; pick Onehub when the priority is cost and self-serve simplicity.

Firmex vs Onehub, side by side

How Firmex and Onehub compare on the attributes we score

AttributeFirmexOnehub
Our score8.8 / 107.7 / 10
Starting price (USD)Custom$15/mo
Free trial Yes Yes
SOC 2 Yes Yes
ISO 27001 Yes No
DeploymentCloudCloud
Best forMid-market M&A, legal and diligence projectsBudget-conscious SMBs and client portals
Indicative pricing; confirm current figures with each provider. See the full comparison table →

Who wins each dimension

Overall score Firmex
Firmex: 8.8 / 10 Onehub: 7.7 / 10

Firmex scores higher across our 40+ criteria (8.8 vs 7.7).

Security certifications Firmex
Firmex: SOC 2 and ISO 27001 Onehub: SOC 2

Firmex lists more independent security certifications.

Entry pricing (USD) Onehub
Firmex: Custom Onehub: $15/mo

Onehub publishes entry pricing; the other quotes on request.

Free trial Tie
Firmex: Yes Onehub: Yes

Both let you trial the platform before committing.

Deployment options Tie
Firmex: Cloud Onehub: Cloud

Both run on the same deployment model.

When to pick each

Firmex

Choose Firmex if you need a data room for mid-market M&A, legal and diligence projects.

  • Best fit for mid-market M&A, legal and diligence projects.
  • Higher overall score in our methodology (8.8 vs 7.7).
  • Lists more security certifications (SOC 2 and ISO 27001).
  • Stronger emphasis on M&A and mid market.

Onehub

Choose Onehub if you need a data room for budget-conscious SMBs and client portals.

  • Best fit for budget-conscious SMBs and client portals.
  • Transparent entry pricing from $15/mo.
  • Stronger emphasis on SMB and affordable.

The honest framing here is that Firmex and Onehub are not really competing for the same buyer. Firmex is a specialist data room built for transactions where a counterparty will scrutinise your security posture and your Q&A process. Onehub is a low-cost secure workspace that happens to offer a data-room edition, aimed at firms that mostly need a client portal and occasionally run lighter diligence. This comparison lines them up on the five dimensions that decide a shortlist, in indicative USD, so you can see which one your actual workflow points to.

Firmex vs Onehub, head to head on the criteria we score

CriteriaFirmexOnehub
Our test score8.8 / 107.7 / 10
Capterra rating4.6 (186 reviews)4.6 (42 reviews)
SOC 2 Yes Yes
ISO 27001 Yes Not certified
Structured buyer Q&A Role-based routing Thin or absent
Redaction built in Yes No
Published pricing Quote only From $15/mo
Doubles as client portal No Yes
DeploymentCloudCloud
Support channelsEmail, phone, chatEmail, knowledge base
Indicative USD; confirm current figures and certifications with each provider. See the full comparison table →

Is Firmex or Onehub more secure?

Firmex wins the security dimension, and the deciding factor is one certification. Both platforms hold SOC 2, encrypt data in transit and at rest, and enforce the controls a document exchange needs: role-based permissions, dynamic watermarking, session controls and audit trails that log every view and download. For everyday client documents and standard diligence, either clears the bar.

The gap opens on ISO 27001. Firmex is certified; Onehub is not. That matters because larger counterparties and regulated buyers frequently list ISO 27001 as a hard requirement in vendor questionnaires, and the international standard is published by ISO as the benchmark for an information security management system. If your diligence checklist includes it, Onehub can stall a security review before the deal starts. Firmex also adds print limits, restricted-view controls and time-based access expiry that suit a formal transaction record. For a routine SMB portal the difference is academic; for a competitive M&A process it is the whole point.

Firmex vs Onehub pricing in USD

Onehub wins on pricing, and it is the clearer choice for anyone budgeting up front. Firmex quotes privately, so you cannot self-serve a number without a sales conversation, though its distinctive unlimited-room subscription can drop the per-deal cost toward zero for advisers who open many rooms a year. Onehub, by contrast, publishes its rate card, which is genuinely rare in this category.

$15/mo
Onehub published entry price (file sharing)
~$375/mo
Onehub Data Room Edition, the diligence-ready tier
Custom
Firmex pricing, quote only in USD

Read the Onehub headline in context. That $15/mo is a file-sharing plan, not the data room; the Data Room Edition most buyers actually want sits around $375/mo, roughly 25 times the advertised floor, with an Unlimited Edition near $575/mo. That gap between the marketing price and the useful tier is the single most common surprise for Onehub buyers. Even so, around $375/mo is still competitive against quote-only rooms, and for a cost-conscious SMB the transparency itself is worth a lot. All figures are indicative, so confirm current terms with each vendor; our pricing guide explains what drives VDR cost as a deal scales.

Which has the better deal features?

Firmex has the deeper deal toolkit, which is unsurprising given it is a dedicated data room and Onehub is a workspace first. Firmex ships structured, role-based Q&A with routing and approvals, bulk upload and download, folder-level permission templates, full-text search, and built-in redaction and watermarking. That is the core workflow a document-heavy deal needs, and it is in the box rather than bolted on.

Onehub covers collaboration essentials well: granular permissions, dynamic watermarking, secure links with expiry, activity tracking, and NDA gating in the Data Room Edition before a viewer reaches the files. Where it thins out is structured deal workflow. Native buyer-side Q&A threads, redaction and deep deal analytics are lighter or absent, so a competitive auction with many bidder groups will hit a ceiling. The flip side is that Onehub doubles as an everyday client portal, so one account covers routine collaboration and light diligence, something Firmex does not try to do. Teams shortlisting by use case can start from our best value data room and best VDRs for M&A rankings.

Which is easier to set up?

This one is a genuine tie, and both earn it for different reasons. In testing, a Firmex room went live in well under fifteen minutes: drag-and-drop upload, folder-level permission inheritance, and a console simple enough that most admins never open the help center. It is built to get an adviser into a live deal fast, without a training call.

Onehub is just as friction-free at the start. We created a workspace, uploaded a folder tree, set role-based permissions and invited an external collaborator without a support ticket or a sales call, and the familiar folders-and-workspaces model means anyone who has used a consumer file-sync tool feels oriented in minutes. The trade-off is structural: Onehub is organised around workspaces rather than a numbered, deal-centric document index, so you do more of the structuring yourself. Firmex gives you a deal-shaped room out of the box; Onehub gives you a flexible workspace you shape. Neither makes you wait, so we call ease of use even.

Firmex vs Onehub: the honest trade

Where Firmex pulls ahead

  • ISO 27001 on top of SOC 2, so it passes strict enterprise security reviews.
  • Structured, role-based Q&A and built-in redaction for real diligence.
  • Support across email, phone and chat, with a track record dating to 2006.
  • Higher test score, 8.8 to 7.7, reflecting deal-tool depth.

Where Onehub pulls ahead

  • Published pricing from $15/mo, versus Firmex's quote-only model.
  • Doubles as an everyday client portal, not just a deal room.
  • Self-serve setup on a free trial with no sales call needed.
  • Cheaper diligence tier for lighter, lower-stakes work.

Firmex vs Onehub support

Firmex takes the support dimension, mostly on breadth and track record. It offers responsive help across email, phone and chat, and reviewers routinely single out fast response times, which matters when a room goes live under a deadline and a permission question cannot wait. It holds about 4.6 on Capterra across roughly 186 reviews, with support quality a recurring theme, and it has been operating since 2006.

Onehub’s support is adequate for the SMB segment it targets: email and knowledge-base help across plans, with faster response commitments on higher tiers. Because the product is self-serve, most teams resolve setup questions without escalating. What you do not get at this price is a dedicated deal-desk or a named project manager sitting alongside a live transaction. Onehub’s 4.6 Capterra rating rests on a much smaller sample, roughly 42 reviews, so there is less signal behind it. If your process depends on a vendor being reachable by phone mid-deal, Firmex is the safer bet.

Which should you pick?

Pick Firmex if you are running actual deal work: mid-market M&A, legal diligence, or any process where a counterparty will run a security review and expect structured Q&A. The ISO 27001 certification, redaction, and phone-plus-chat support are the features that keep a serious transaction moving, and the 8.8 test score reflects that depth. The full Firmex review has the complete scorecard.

Pick Onehub if you are a cost-conscious SMB or a professional-services firm that mainly needs a client portal and occasionally handles lighter diligence. Its published pricing, quick self-serve setup, and dual role as workspace-plus-data-room make it a practical single tool, provided ISO 27001 is not on your checklist. The full Onehub review covers the detail. Teams still weighing the wider field can rank both on the same criteria in our best VDRs for small business page.

Firmex vs Onehub: FAQ

Is Firmex or Onehub better for M&A?

Firmex. It is a dedicated data room with ISO 27001, structured role-based Q&A and built-in redaction, which competitive M&A and formal diligence need. Onehub can handle lighter, lower-stakes deals but lacks ISO 27001 and deeper deal tooling.

Which is cheaper, Firmex or Onehub?

Onehub, on published price. It lists plans from $15/mo, though its diligence-ready Data Room Edition is around $375/mo. Firmex quotes privately in USD, so you need a sales conversation to budget. Figures are indicative, so confirm with each vendor.

Does Onehub have ISO 27001?

No. Onehub is certified to SOC 2 but does not hold ISO 27001. Firmex holds both. If your buyer's security questionnaire lists ISO 27001 as a requirement, Onehub will not satisfy it, so confirm current certifications with the provider.

Which is easier to set up?

It is close to even. A Firmex room went live in under fifteen minutes in testing with drag-and-drop upload and folder-level permissions. Onehub is equally self-serve on a free trial, though its workspace model means you do more of the deal structuring yourself.

Can Onehub double as a client portal?

Yes, that is a real advantage. Onehub is a secure workspace first, so one account covers everyday client file sharing and a light data room with custom branding. Firmex is a dedicated deal room and does not aim to be a general client portal.