Holistic AI

End-to-end AI governance platform for the EU AI Act, NIST and ISO 42001

OneTrust

Enterprise privacy, consent, and compliance management platform for regulated organisations

Holistic AI

Strong

17/25

OneTrust

Strong

21/25

Score Breakdown

DimensionHolistic AIOneTrust

Data Residency

Where is your data stored and processed?

Holistic AI: UK-headquartered vendor; specific data-hosting region not publicly disclosed. UK holds an EU adequacy decision, enabling EU data transfers. A US office exists, so EU/UK data residency should be confirmed contractually during procurement.

OneTrust: EU data residency available and configurable (AWS Frankfurt/Dublin); clearly documented for enterprise customers

4/5

UK-headquartered vendor; specific data-hosting region not publicly disclosed. UK holds an EU adequacy decision, enabling EU data transfers. A US office exists, so EU/UK data residency should be confirmed contractually during procurement.

4/5

EU data residency available and configurable (AWS Frankfurt/Dublin); clearly documented for enterprise customers

Legal Jurisdiction

Which laws govern the company and your data?

Holistic AI: UK-incorporated (Holistic AI Ltd) and headquartered in London, operating under UK GDPR. A US office in San Jose exists but the company is UK-domiciled; no US CLOUD Act exposure was identified.

OneTrust: US Georgia corporation; CLOUD Act applies; strong SCCs and DPAs available; EU hosting mitigates but doesn't eliminate

4/5

UK-incorporated (Holistic AI Ltd) and headquartered in London, operating under UK GDPR. A US office in San Jose exists but the company is UK-domiciled; no US CLOUD Act exposure was identified.

2/5

US Georgia corporation; CLOUD Act applies; strong SCCs and DPAs available; EU hosting mitigates but doesn't eliminate

Data Retention & Training

Is your data used for model training?

Holistic AI: As a governance platform it processes AI-system metadata and assessment evidence rather than training on customer data. Detailed retention and DPA terms were not publicly documented; enterprise controls assumed but should be verified.

OneTrust: No training on customer compliance data; comprehensive DPA; customer-controlled retention policies

4/5

As a governance platform it processes AI-system metadata and assessment evidence rather than training on customer data. Detailed retention and DPA terms were not publicly documented; enterprise controls assumed but should be verified.

5/5

No training on customer compliance data; comprehensive DPA; customer-controlled retention policies

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Holistic AI: No independent security certifications (SOC 2 Type II, ISO 27001) were publicly confirmed for Holistic AI itself at time of research. The platform helps customers achieve ISO 42001, but that is not the same as the vendor holding it. Verify directly with the vendor.

OneTrust: ISO 27001, ISO 27701, SOC 2 Type II, and CSA STAR — best-in-class certification stack for this category

1/5

No independent security certifications (SOC 2 Type II, ISO 27001) were publicly confirmed for Holistic AI itself at time of research. The platform helps customers achieve ISO 42001, but that is not the same as the vendor holding it. Verify directly with the vendor.

5/5

ISO 27001, ISO 27701, SOC 2 Type II, and CSA STAR — best-in-class certification stack for this category

Regulatory Fit

Suitability for regulated industries and professional services

Holistic AI: Purpose-built for AI governance and compliance across regulated EU/UK industries, with control mapping to the EU AI Act, NIST AI RMF, and ISO 42001. Strong fit for regulated sectors; UK jurisdiction is a minor consideration for EEA buyers.

OneTrust: Purpose-built for GDPR and EU AI Act compliance; used by EU regulators and regulated industries

4/5

Purpose-built for AI governance and compliance across regulated EU/UK industries, with control mapping to the EU AI Act, NIST AI RMF, and ISO 42001. Strong fit for regulated sectors; UK jurisdiction is a minor consideration for EEA buyers.

5/5

Purpose-built for GDPR and EU AI Act compliance; used by EU regulators and regulated industries

Total Score

17/25

21/25

Best For

Holistic AI

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (ICO, FCA); privacy-conscious teams who need strong data retention controls.

OneTrust

Best for organisations requiring broad certification coverage (ISO 27001, ISO 27701, SOC 2 Type II); regulated industries (ICO, CNIL); privacy-conscious teams who need strong data retention controls; teams on a tight budget.

Detailed Comparison

Holistic AI vs OneTrust: Trust & Compliance Comparison

Holistic AI (Holistic AI, GB) scores 17/25 overall with a Silver (Strong) trust badge. End-to-end AI governance platform for the EU AI Act, NIST and ISO 42001. OneTrust (OneTrust, US) scores 21/25 with a Silver (Strong) trust badge. Enterprise privacy, consent, and compliance management platform for regulated organisations.

Dimension-by-Dimension Breakdown

#### Data Residency

Both score equally at 4/5.

●Holistic AI (4/5): UK-headquartered vendor; specific data-hosting region not publicly disclosed. UK holds an EU adequacy decision, enabling EU data transfers. A US office exists, so EU/UK data residency should be confirmed contractually during procurement.

●OneTrust (4/5): EU data residency available and configurable (AWS Frankfurt/Dublin); clearly documented for enterprise customers

#### Legal Jurisdiction

Holistic AI leads with 4/5 vs 2/5.

●Holistic AI (4/5): UK-incorporated (Holistic AI Ltd) and headquartered in London, operating under UK GDPR. A US office in San Jose exists but the company is UK-domiciled; no US CLOUD Act exposure was identified.

●OneTrust (2/5): US Georgia corporation; CLOUD Act applies; strong SCCs and DPAs available; EU hosting mitigates but doesn't eliminate

#### Data Retention & Training

OneTrust leads with 5/5 vs 4/5.

●Holistic AI (4/5): As a governance platform it processes AI-system metadata and assessment evidence rather than training on customer data. Detailed retention and DPA terms were not publicly documented; enterprise controls assumed but should be verified.

●OneTrust (5/5): No training on customer compliance data; comprehensive DPA; customer-controlled retention policies

#### Certifications

OneTrust leads with 5/5 vs 1/5.

●Holistic AI (1/5): No independent security certifications (SOC 2 Type II, ISO 27001) were publicly confirmed for Holistic AI itself at time of research. The platform helps customers achieve ISO 42001, but that is not the same as the vendor holding it. Verify directly with the vendor.

●OneTrust (5/5): ISO 27001, ISO 27701, SOC 2 Type II, and CSA STAR — best-in-class certification stack for this category

#### Regulatory Fit

OneTrust leads with 5/5 vs 4/5.

●Holistic AI (4/5): Purpose-built for AI governance and compliance across regulated EU/UK industries, with control mapping to the EU AI Act, NIST AI RMF, and ISO 42001. Strong fit for regulated sectors; UK jurisdiction is a minor consideration for EEA buyers.

●OneTrust (5/5): Purpose-built for GDPR and EU AI Act compliance; used by EU regulators and regulated industries

Certifications at a Glance

Certification	Holistic AI	OneTrust
CSA STAR	No	Yes
ISO 27001	No	Yes
ISO 27701	No	Yes
SOC 2 Type II	No	Yes

Overall Verdict

OneTrust has a clear trust advantage, scoring 21/25 compared to Holistic AI's 17/25. OneTrust particularly excels in data retention & training, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, Holistic AI or OneTrust?

Holistic AI has a TrustKit score of 17/25 while OneTrust scores 21/25. OneTrust currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Holistic AI and OneTrust compare on data residency?

Holistic AI scores 4/5 for data residency (UK-headquartered vendor; specific data-hosting region not publicly disclosed. UK holds an EU adequacy decision, enabling EU data transfers. A US office exists, so EU/UK data residency should be confirmed contractually during procurement.), while OneTrust scores 4/5 (EU data residency available and configurable (AWS Frankfurt/Dublin); clearly documented for enterprise customers).

Are Holistic AI and OneTrust GDPR compliant?

Both tools are assessed across five compliance dimensions. Holistic AI has a regulatory fit score of 4/5 and OneTrust scores 5/5. Check the full comparison above for a detailed breakdown.

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