Who each option is best for, and where either supplier is deliberately narrower.
Vendor comparison
Proteus-Cyber vs OneTrust: capability comparison
A side-by-side comparison of Proteus-Cyber and OneTrust across RoPA, DPIA, DSAR, vendor risk, AI governance and evidence workflows. Acompli is shown as a third reference column.
Proteus-CyberOneTrustComparison
Which public claims, review signals, caveats and capability rows are evidenced.
How much work it takes to implement, maintain and export the privacy record.
The questions a privacy team should ask before switching or shortlisting.
On this page
Key takeaways
- Proteus-Cyber and OneTrust are compared here on public, evidence-framed capability coverage: Proteus-Cyber is evidenced for 19 of 20 tracked capabilities, OneTrust for 19.
- The clearest differences: Proteus-Cyber adds Public pricing; OneTrust adds AI governance.
- Capability coverage is evidence-framed from the public sources reviewed for this comparison; verify current scope, pricing and exports directly with each vendor.
Comparison workflow
From company profile to shortlist decision
01Short answerProteus-Cyber vs OneTrust02At a glanceProteus-Cyber vs OneTrust at a glance03ProfileWhat Proteus-Cyber offers04ProfileWhat OneTrust offers05Capability comparisonProteus-Cyber vs OneTrust: capability by capability06Where each is strongerProteus-Cyber vs OneTrust: the differences that matter07Shortlisting notesChoosing between Proteus-Cyber and OneTrust
Market lanechecked
Best-fit buyerchecked
Public strengthschecked
Capability evidencechecked
Overlapchecked
Gapschecked
Exportschecked
Shortlist fitchecked
01Short answer
Proteus-Cyber vs OneTrust
Proteus-Cyber is positioned as: Broad, highly configurable privacy-operations platform for global compliance (GDPR, CCPA, LGPD, PDPA) spanning assessments, DSAR, breach, vendor risk, consent, cookies and training. OneTrust is positioned as: Enterprise privacy, trust, consent, third-party risk, AI governance and GRC suite.
Published by Acompli and last reviewed on 29 June 2026. Capability coverage below is evidence-framed from public sources for all three.
02At a glance
Proteus-Cyber vs OneTrust at a glance
| Decision question | Proteus-Cyber | OneTrust | Acompli |
|---|---|---|---|
| Best fit | Teams that want a broad, highly configurable privacy suite with consent, cookie scanning, breach, vendor risk and training across global privacy laws | Large enterprises that need a broad privacy automation and trust platform spanning privacy, consent, third-party risk, AI governance and related programmes | Privacy teams that need a focused operating layer for connected records, evidence packs, human approval and Ireland/UK/EU workflows |
| Operating model | A broad, configurable privacy-operations platform spanning assessments, DSAR, breach, vendor risk, consent, cookie scanning and training | A broad enterprise privacy, trust, consent, third-party-risk and AI-governance suite for global programmes | Connected GDPR and EU AI Act records - RoPA, DPIA, DSAR, risk, vendors, data mapping and AI governance - where one approved assessment feeds every downstream record |
| When to choose it | Choose Proteus-Cyber when configurable breadth, consent and cookie scanning, breach handling, training and multi-standard global coverage match the programme you want to run | Choose OneTrust when enterprise-suite breadth, existing OneTrust investment, partner ecosystem or global programme scale is the primary requirement | Choose Acompli when the main problem is keeping evidence, assessments, RoPA, suppliers, DSARs and risk decisions connected and defensible after approval |
03Profile
What Proteus-Cyber offers
Proteus-Cyber Ltd (20-22 Wenlock Road, London) is a UK legal-tech vendor whose flagship product, Proteus NextGen Data Privacy, gives DPOs, privacy teams and legal teams a broad, highly configurable platform to run a GDPR, CCPA, LGPD or PDPA compliance programme. It spans automated PIA/DPIA/TIA surveys, data mapping and discovery, RoPA reporting, DSAR handling, automated and legislation-based risk assessment, vendor risk management, breach notification, consent management, cookie scanning, privacy-by-design, policy templates, security-awareness training and automated Schrems II SCC generation.
- Best for: Enterprise and mid-market organisations - especially UK and multinational - that want a single configurable platform covering the full privacy suite (RoPA, DSAR, DPIA, breach, vendor risk, consent, cookie scanning, training) across multiple global privacy laws.
- Deployment: Cloud SaaS platform hosted in the EU with regional controls implemented; three upward-upgradable versions (Schrems II, Express, Enterprise) covering assessments, data mapping/discovery, RoPA, DSAR, risk, vendor risk, breach, consent, cookie scanning, policy templates and training.
04Profile
What OneTrust offers
OneTrust (US) positions Privacy Automation as part of a broad enterprise trust platform spanning privacy by design, consent, third-party risk, AI and data governance.
- Best for: Large global enterprises with multi-region privacy operations, consent, DSR, vendor, AI risk and regulatory-change programmes.
- Deployment: Enterprise cloud platform positioning; deployment model details should be checked directly with the vendor before making a buying decision.
05Capability comparison
Proteus-Cyber vs OneTrust: capability by capability
Each capability is marked Y or N from the public sources reviewed for this comparison. Acompli is shown in the final column.
| Capability | Proteus-Cyber | OneTrust | Acompli |
|---|---|---|---|
| DPIA/PIA assessments | Y | Y | Y |
| RoPA / Article 30 | Y | Y | Y |
| DSAR / privacy rights | Y | Y | Y |
| Data mapping | Y | Y | Y |
| Vendor risk | Y | Y | Y |
| Privacy risk | Y | Y | Y |
| AI governance | N | Y | Y |
| Consent management | Y | Y | N |
| Cookie/tracker scanning | Y | Y | N |
| Breach/incident management | Y | Y | N |
| Retention management | Y | Y | Y |
| Policy/notice management | Y | Y | N |
| Training module | Y | Y | N |
| Approval workflows | Y | Y | Y |
| Audit trail | Y | Y | Y |
| Role-based access control | Y | Y | Y |
| Multi-entity support | Y | Y | Y |
| Spreadsheet import | Y | Y | Y |
| PDF/CSV/Excel export | Y | Y | Y |
| Public pricing | Y | N | N |
06Where each is stronger
Proteus-Cyber vs OneTrust: the differences that matter
On the tracked capabilities, Proteus-Cyber and OneTrust overlap heavily; the decision usually turns on the handful of capabilities only one of them evidences, plus depth, jurisdiction fit and price.
- Only Proteus-Cyber (not OneTrust) is evidenced for: Public pricing.
- Only OneTrust (not Proteus-Cyber) is evidenced for: AI governance.
07Shortlisting notes
Choosing between Proteus-Cyber and OneTrust
Proteus-Cyber and OneTrust should each be assessed on the published fit above against the workflow you actually need to run - RoPA, DPIA, DSAR, vendor and risk records, and how defensibly each exports.
- Shortlist Proteus-Cyber or OneTrust where its broader suite, integrations or specific modules match the programme you want to run.
- Ask each vendor to demonstrate the same workflow end to end: a new processing activity, its assessment, the RoPA update, supplier evidence, the privacy risk and an exportable audit trail.
08Ireland & UK
Proteus-Cyber vs OneTrust for RoPA in Ireland and the UK
Records of processing activities are required under GDPR Article 30 - a controller record under Article 30(1) and a separate processor record under Article 30(2). In Ireland the Data Protection Commission (DPC) publishes Article 30 guidance; in the UK the ICO sets out what must be documented under UK GDPR.
Whichever of Proteus-Cyber or OneTrust you weigh, the questions for an Irish or UK team are the same: how deep is the Article 30 record, and how defensibly does it export?
- Article 30(1) and 30(2) - does it model controller and processor records separately, scoped by legal entity?
- DPC (Ireland) and ICO (UK) documentation - are EU and UK GDPR distinguished on one register?
- Export - can each legal entity produce a self-contained record its own supervisory authority can read?
Acompli overlap
Related Acompli workflows
Proteus-Cyber vs Acompli
Compare Proteus-Cyber directly with Acompli across RoPA, DPIA, DSAR, risk and vendor records.
Open moduleOneTrust vs Acompli
Compare OneTrust directly with Acompli across RoPA, DPIA, DSAR, risk and vendor records.
Open moduleAssessments
Run DPIAs, LIAs, TIAs, processor reviews and AI Act assessments with templates, AI support and human approval.
Open moduleRoPA management
Maintain Article 30 records that stay linked to approved assessments, systems, suppliers and transfers.
Open moduleCompare Proteus-Cyber and OneTrust against a real workflow.
Bring one RoPA, DPIA, DSAR, vendor, risk or AI-governance requirement and map which parts Proteus-Cyber covers, which OneTrust covers, and where each option fits.