OneTrust vs TrustArc

Why this comparison matters

OneTrust and TrustArc are the comparison every Fortune 500 privacy team has to run at least once. TrustArc (founded 1997 as TRUSTe) is the veteran — it ran the privacy seal programme that pre-dated GDPR by 15 years and built deep expertise in privacy impact assessments before most of the market knew what one was. OneTrust (founded 2016) is the scale-up that out-marketed and out-acquired everyone in the post-GDPR boom, bundling privacy, GRC, ethics, ESG, and third-party risk into a single sprawling platform. The choice between them is rarely a feature shoot-out; both cover the GDPR Article 30 ROPA, cookie consent, DSR workflows, vendor risk, and now AI Act assessments. The choice is about platform philosophy. OneTrust is the answer if you want to consolidate privacy, GRC, and ethics under one vendor relationship, accept enterprise complexity, and have the implementation budget — median pricing per PriceLevel sits around $11.5k/yr but enterprise deployments routinely exceed $200k once add-on modules and professional services are factored in. TrustArc is the answer if you want privacy depth without paying for GRC and ESG modules you will never use, and prefer working with a vendor whose entire engineering attention is on the privacy domain. Neither solves the CLOUD Act problem for EU buyers — both are US-headquartered and subject to extraterritorial US law-enforcement requests regardless of where their EU customer's data is hosted.

Verdict by use case

Migration considerations

Migrating between OneTrust and TrustArc is a multi-quarter project, not a swap. Both platforms hold years of accumulated assessment data — PIAs, DPIAs, vendor risk records, DSR audit trails — and the export formats are not interoperable. Realistic timeline: 4–6 months from contract signed to fully cutover, with the old vendor running in read-only mode for an additional 12 months to support audit lookback. The OneTrust → TrustArc direction is uncommon because most teams that have committed to OneTrust have done so because of its breadth (GRC + ESG + Ethics modules); switching to TrustArc means giving up those adjacent workspaces and re-buying point tools for each. The TrustArc → OneTrust direction is more common, usually driven by an executive consolidation mandate ('reduce our compliance vendor count by 50%') rather than a feature gap. In both directions, the hidden cost is professional services: both vendors charge $40k–$150k for migration support, and DIY migration without their services typically over-runs by 8–12 weeks. The contract overlap is unavoidable — you will pay both vendors for 6–12 months — so budget accordingly. For EU buyers specifically: neither migration changes your CLOUD Act exposure. If that exposure is the driver, you need to look at smaller EU-HQ privacy tools (where breadth is reduced) or accept the residual risk with a Standard Contractual Clauses + Transfer Impact Assessment regime.