Lexnomia vs OneTrust, TrustArc and Drata — why a US SaaS lock-in is not the answer for a 50-200 person EU company
Direct comparison between Lexnomia and US compliance platforms: real cost, sovereignty, evidence vs PDF, and why European SMBs pay twice for the same controls.
Lexnomia vs OneTrust, TrustArc and Drata — why a US SaaS lock-in is not the answer for a 50-200 person EU company
In the spring of 2025, a 130-person industrial group from Cluj ran a simple calculation on a corner of the boardroom whiteboard. They had OneTrust for DPIA and RoPA, TrustArc for consent management, Drata for ISO 27001 readiness, plus a Vanta licence for a SOC 2 audit demanded by a US client. Four subscriptions, four consoles, four employee personal data exports to US vendors, four processing contracts. Combined annual cost: nearly 78 000 EUR. The team actually working in these tools: 1.4 FTE.
This article explains why the typical “US compliance SaaS stack” architecture is not the natural answer for a 50-200 person European company, and what we built differently with Lexnomia.
TL;DR
- The typical OneTrust + TrustArc + Drata stack costs 60-90 000 EUR per year for a 100-person SMB and creates four parallel consoles.
- All three are US corporations subject to the CLOUD Act — a future Schrems III is not an academic hypothesis.
- Self-serve “PDFs and certificates” do not pass real audits: operational evidence is missing (logs, ticketing, verifiable snapshots).
- Lexnomia replaces the four modules with a single EU-resident platform with automatic evidence linked to the existing technical stack.
- Typical migration takes 6-10 weeks while preserving evidence history.
What each player actually does
OneTrust is the global GRC market leader with over 14 000 enterprise clients. The suite includes Privacy Management, Third-Party Risk, GRC, ESG, Ethics. For a typical SMB only 8-12% of features are actually used. Licensing is per data subject or per asset, which creates year-two surprises when scope expands.
TrustArc specialises in consent, cookie scanning and data mapping. It was acquired in 2023 by the Bowmark private equity fund (UK). Operational headquarters remain in San Francisco. Historic strength: cookie consent. Weakness: integrations with on-premise systems are minimal.
Drata is “compliance automation” focused on SOC 2, ISO 27001, HIPAA, PCI-DSS. Their model: install an agent on laptops and clouds, read the configuration, map to controls. For SOC 2 Type II at an AWS-native SaaS startup, very useful. For an EU company with a hybrid environment (Azure + on-premise + two regional data centres), Drata only partially covers the scope.
Vanta is similar to Drata, friendlier UI, less depth on custom controls. Both target English-speaking teams with US cloud-native environments.
Problem 1 — Sovereignty and jurisdiction
All four platforms store data in US clouds. Their data includes employee names, email addresses, organisational roles, personal data mapping, security configuration screenshots, incident reports, GDPR processing registers. In other words, almost everything an intelligence agency mapping a target European company would want.
Schrems II (case C-311/18, 16 July 2020) invalidated Privacy Shield. EDPB Recommendations 01/2020 require supplementary technical measures for US transfers. For a GRC tool that by definition holds sensitive metadata about the whole organisation, contractual measures (Standard Contractual Clauses) are insufficient. See also our article Why a law firm cannot use Auth0 — Schrems II in detail — the same reasoning applies to any US GRC vendor.
Problem 2 — Self-serve becomes PDF without evidence
Selling “compliance automation” works on a subtle trick. The dashboard shows green, control C.AC.01 is “passing”, the user downloads a PDF with a check icon. The real auditor (a BSI, a BDO, a Mazars) asks for something else: operational proof that on 12 March at 14:42, user X’s access to system Y was revoked according to policy. The log. The ticket. The manager’s approval. The configuration snapshot.
Such evidence is not generated automatically by an agent reading configurations weekly. It requires integration with the IdP, the ITSM, the SIEM, the change management system. The “self-serve” restaurant produces beautiful PDFs, but at a SOC 2 Type II audit or an ANSPDCP (Romanian DPA) audit, those PDFs are not proof.
See the dedicated article 7 anti-patterns of self-serve compliance SaaS for a detailed analysis of the phenomenon.
Problem 3 — Real cost for the EU SMB
Here is a cost comparison for a 100-employee company, single tenant, hybrid Azure + on-premise environment:
| Platform | List price/year | Real price (after negotiation) | Implementation fee | Year 2 (typical scope creep) |
|---|---|---|---|---|
| OneTrust Privacy + GRC | 48 000 EUR | 36 000 EUR | 12 000 EUR | 52 000 EUR |
| TrustArc Consent + Mapping | 18 000 EUR | 14 000 EUR | 6 000 EUR | 22 000 EUR |
| Drata ISO 27001 | 22 000 EUR | 18 000 EUR | 8 000 EUR | 26 000 EUR |
| Vanta SOC 2 | 24 000 EUR | 19 000 EUR | 7 000 EUR | 28 000 EUR |
| Stack total | 112 000 | 87 000 | 33 000 | 128 000 |
| Lexnomia (all modules) | — | 28 000 EUR | included | 32 000 EUR |
The OneTrust/TrustArc/Drata/Vanta numbers are pulled from real RFPs received by our clients in 2024-2025. They are not the marketing-page prices. They are what you get after signing the NDA and passing the first negotiation round.
For a 100-person company, the cumulative three-year difference is roughly 280 000 EUR. For a European SMB, that is half a CFO salary, or two senior developers per year, or a complete ISO 27001 audit paid in cash.
Problem 4 — Lock-in and exit
OneTrust uses a proprietary format for data mapping. Drata uses a proprietary format for control mapping. Later migration to another vendor requires manual re-entry of 60-80% of the data, or writing a custom ETL adapter. The standard OneTrust contract guarantees CSV export under “data portability” — but without semantics, without cross-references, without approval history.
Lexnomia exports in three open formats: ISO 27001 SoA in standard XML, GDPR RoPA in ANSPDCP format, control evidence as DocBundle package (PDF + JSON + Merkle tree for integrity). Reverse migration to any tool that understands these formats is direct.
How we built Lexnomia differently
Lexnomia is our compliance platform for the EU SMB, built on three principles:
Effective sovereignty. The stack runs on our EU-resident infrastructure or on the client’s infrastructure (on-premise deployment for NIS2-regulated clients). Zero dependency on US vendors at the data layer.
Evidence, not PDF. Each control is bound to an operational evidence source: the IdP (CAI-AUTH or Keycloak), the ITSM (Jira, ServiceNow, Zammad), the SIEM (Wazuh, Splunk, Elastic), Git, the change management system. When the auditor asks for proof of “user X access revoked on date Y”, Lexnomia produces: the SIEM log, the ITSM ticket, the relevant Git commit, the approval chain.
Multi-framework simultaneously. A single control maps to GDPR + ISO 27001 + NIS2 + DORA + AI Act at once. You do not duplicate effort for each audit.
What you get concretely
- ANSPDCP-compliant DPIA and RoPA with automatic generation from the application inventory.
- ISO 27001:2022 SoA with the 93 controls (migration details in the dedicated article).
- NIS2 readiness checklist (implementation deadline).
- DORA five-pillar tracker for fintech (details).
- AI Act risk classification for internal AI systems (how to classify).
- Cyber Resilience Act SBOM tracker for products (details).
- Data Subject Request workflow with the 30-day legal SLA.
- Cryptographically signed export for auditors.
Related articles
- 7 anti-patterns of self-serve compliance SaaS — and how we avoid them in Lexnomia
- NIS2 implementation — operational checklist for essential and important entities
- ISO/IEC 27001:2022 — migrating from the 2013 edition with the 93 controls reorganised
- Why a Romanian law firm cannot use Auth0 — Schrems II
- Pillar Lexnomia — the sovereign EU compliance platform
Next steps
If you run a US GRC stack and are preparing an ISO 27001 audit or a NIS2 assessment, the Lexnomia page holds the full technical specifications and the 6-10 week migration plan. Or write to contact for a 30-minute conversation.