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Cybersecurity · head to head

BigID vs One Identity

BigID logo

BigID

Cybersecurity

Data discovery and classification across cloud, on-premise and unstructured stores

From
On request
Rated
-
Full reviewWebsite
One Identity logo

One Identity

Cybersecurity

Quest-owned identity governance, PAM and Active Directory management

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: BigID pricing scales with data sources and volume, so the cost rises exactly as the estate you need to scan grows, and the modules shown in a demo, including AI security posture and headless deployment, are frequently separate licences that appear only in the final quote.; One Identity the portfolio is assembled from separate acquisitions, so components are separately licensed, separately administered and do not present one console, which raises operational cost.
  • They diverge on capability: BigID covers Structured and unstructured scanning, One Identity covers Identity Manager.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which BigID and One Identity actually diverge.

Attributes where BigID and One Identity differ
AttributeBigIDOne Identity
PlatformsWeb, API, Self-hostedWeb, Windows, Linux

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in BigID

  • Structured and unstructured scanning
  • Identity correlation
  • Data security posture management
  • Access intelligence
  • Privacy request support
  • Retention and minimisation
  • AI data controls
  • Policy and remediation workflow

Only in One Identity

  • Identity Manager
  • Safeguard
  • Active Roles
  • OneLogin
  • Password Manager
  • syslog-ng
  • Starling connectors

What people use each for

The jobs each tool is most often brought in to do.

BigID

  • A bank that has to prove which of thirty year old file shares contain customer identifiers before a data centre migrationnot One Identity
  • A privacy team that cannot fulfil deletion requests because nobody knows which unstructured stores hold a given customer’s recordsnot One Identity
  • A security team wanting to find sensitive data sitting in publicly readable object storage buckets before an attacker doesnot One Identity
  • A company building retrieval augmented AI that must exclude regulated personal data from the index it feeds to a modelnot One Identity

One Identity

  • An organisation whose authoritative directory will remain on premises Active Directory and needs delegated administration with attribute-level controlnot BigID
  • A government or defence environment requiring privileged session management on a hardened physical appliance rather than a cloud servicenot BigID
  • A manufacturer with SAP and Active Directory needing provisioning governed under one certification processnot BigID
  • An enterprise consolidating Active Directory after an acquisition and needing automated account lifecycle across both forestsnot BigID

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

BigID

  • Pricing scales with data sources and volume, so the cost rises exactly as the estate you need to scan grows, and the modules shown in a demo, including AI security posture and headless deployment, are frequently separate licences that appear only in the final quote.
  • Scanning large unstructured estates is slow and computationally expensive, so most organisations sample rather than scan everything, which reintroduces uncertainty into the very question they bought the tool to settle.
  • Classification accuracy on messy unstructured content requires tuning, and out of the box false positives on things like reference numbers create a large triage backlog that a small governance team cannot clear.
  • It discovers and reports but does not remediate, so realising value requires a separate process and often separate tooling to actually delete, restrict or move the data it flags.
  • It is built for large enterprises and both the price and the administrative overhead are disproportionate below a few thousand employees, where a lighter DSPM tool covers the security use case for far less.

One Identity

  • The portfolio is assembled from separate acquisitions, so components are separately licensed, separately administered and do not present one console, which raises operational cost.
  • Identity Manager implementations are customisation-heavy and commonly run over a year, with the services spend exceeding the licence cost in the first year.
  • Quest has changed private equity ownership more than once since the Dell separation, and buyers should ask directly about product investment commitments before signing a multi-year deal.
  • Product documentation and support sit behind a customer portal, which makes independent evaluation before purchase harder than with vendors that publish openly.
  • The cloud-native and developer experience trails the pure-play identity vendors, so organisations moving decisively to SaaS applications find the on premises heritage becomes a constraint rather than an asset.

Pricing, plan by plan

BigID

On request
  • BigID Platform$undefined/year
    • Priced by number of data sources and data volume
    • Discovery and classification core
    • Optional DSPM, access intelligence and AI security modules licensed separately

One Identity

On request
  • Identity Manager$undefined/year
    • Priced per managed identity
    • On premises or hosted
    • Access certification and provisioning
  • Safeguard$undefined/year
    • Priced per privileged user or per appliance
    • Hardened appliance option for session management
    • Licensed separately from Identity Manager
  • Active Roles$undefined/year
    • Priced per managed Active Directory account
    • Delegated administration and automated provisioning
    • Licensed separately

Which should you pick?

Choose BigID if

  • You need structured and unstructured scanning.
  • You work on Web, API, Self-hosted.
  • You also want identity correlation.
BigID review

Choose One Identity if

  • You need identity manager.
  • You work on Web, Windows, Linux.
  • You also want safeguard.
One Identity review

Questions people ask

Is BigID or One Identity better?
Neither clearly leads. BigID starts at On request and One Identity at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, BigID or One Identity?
BigID starts at On request and One Identity at On request.
Does BigID or One Identity run on more platforms?
BigID runs on Web, API, Self-hosted. One Identity runs on Web, Windows, Linux.
What is BigID best used for?
BigID is most often used for a bank that has to prove which of thirty year old file shares contain customer identifiers before a data centre migration, a privacy team that cannot fulfil deletion requests because nobody knows which unstructured stores hold a given customer’s records, a security team wanting to find sensitive data sitting in publicly readable object storage buckets before an attacker does, a company building retrieval augmented ai that must exclude regulated personal data from the index it feeds to a model. Of those, a bank that has to prove which of thirty year old file shares contain customer identifiers before a data centre migration and a privacy team that cannot fulfil deletion requests because nobody knows which unstructured stores hold a given customer’s records are not what One Identity is typically brought in for.
What can BigID do that One Identity cannot?
BigID covers Structured and unstructured scanning, Identity correlation, Data security posture management, Access intelligence. One Identity covers Identity Manager, Safeguard, Active Roles, OneLogin.

Answered from the vendors’ own pages

BigID: What does BigID cost?

It is quoted by data source count and volume. Reported contracts run from roughly 15,000 to 175,000 US dollars a year, and add-on modules such as AI security posture are licensed on top.

One Identity: Is One Identity the same company as Quest?

Yes. One Identity is Quest Software's identity and access management business unit, not a separate vendor.

BigID: Does it handle unstructured data?

Yes, and that is its main advantage. It classifies data in files and shares and correlates findings back to individuals, not just to data types.

One Identity: Does it include privileged access?

Safeguard provides it, but it is licensed separately from Identity Manager. Neither includes the other.

BigID: Will it delete the data it finds?

Not by itself in most deployments. It identifies and routes findings; deletion and remediation happen through your own processes or connected systems.

One Identity: Why choose this over SailPoint or Saviynt?

Almost always because of Active Directory depth via Active Roles or an appliance requirement for privileged sessions. For cloud-first estates the specialists are the stronger choice.

BigID: Is it a privacy tool or a security tool?

Both are sold from the same discovery core. Buyers increasingly come from security wanting data security posture management rather than from legal wanting privacy.

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