CLUE#ZO vs Whistleflow

Side-by-side facts for CLUE#ZO and Whistleflow, sourced from vendor-published materials. Both platforms market themselves for EU Directive 2019/1937 compliance.

At a glance

CLUE#ZO

German digital whistleblowing system from CAS Concepts and Solutions AG, delivered on SAP Business Technology Platform with integration to SAP S/4HANA and chatbot-guided report intake.

Headquarters: Hamburg, Germany
Pricing: Basic EUR 99/month (12 reports/year, 3 users); Standard EUR 299/month (50 reports/year, 6 users); Enterprise EUR 1,499/month (unlimited reports, 15 users). Prices are ex-VAT.
EU data hosting: EU (named data centre)
EU member states referenced: 1 of 27
Certifications: None published
AI on report content: Processes report content with AI / translation

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Whistleflow

Italian cloud whistleblowing channel from Innovio SpA with published tiers from EUR 29/month plus a EUR 250 annual setup fee.

Headquarters: Prato, Italy
Pricing: Basic EUR 29/month (up to 50 employees); Standard EUR 59/month (up to 250); Premium EUR 149/month (up to 500); Enterprise custom (500+). EUR 250 annual setup fee on all plans; prices exclude VAT.
EU data hosting: EU (named data centre)
EU member states referenced: 1 of 27
Certifications: ISO 27001 + 1 more
AI on report content: No AI processing of report content

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Full facts, side by side

Full facts, side by side: CLUE#ZO and Whistleflow
Attribute	CLUE#ZO	Whistleflow
Headquarters	Hamburg, Germany	Prato, Italy
Ownership	Private, CAS Concepts and Solutions AG (Hamburg, Commercial Register HRB 69127)	Private - Innovio SpA (Italy, P.IVA 04923180485)
Pricing	Basic EUR 99/month (12 reports/year, 3 users); Standard EUR 299/month (50 reports/year, 6 users); Enterprise EUR 1,499/month (unlimited reports, 15 users). Prices are ex-VAT.	Basic EUR 29/month (up to 50 employees); Standard EUR 59/month (up to 250); Premium EUR 149/month (up to 500); Enterprise custom (500+). EUR 250 annual setup fee on all plans; prices exclude VAT.
Pricing model	Tiered (per employee)	Tiered (per employee)
Procurement model	Mixed	Demo required
Free trial	No	No
EU data hosting	EU (named data centre) European data centres (vendor states ISO 27001 certified data centres); built on SAP Business Technology Platform	EU (named data centre) European Azure or AWS cloud (vendor-stated); specific EU country not disclosed
EU member states referenced	1 of 27	1 of 27
EU reporting languages	Undisclosed	Partial
Total reporting languages	Undisclosed	2
AI on report content	Processes report content with AI / translation	No AI processing of report content
Certifications	None published	ISO/IEC 27001 (vendor Innovio SpA) ISO 9001 (vendor Innovio SpA)
National laws referenced	EU Directive 2019/1937 Germany (Hinweisgeberschutzgesetz, HinSchG)	EU Directive 2019/1937 Italy (D.Lgs 24/2023)
Anonymous reporting	✓	✓
Case management	✓	✓
Multi-channel intake	—	—
Public API	—	✓
GDPR (vendor claim)	✓	✓
EU Directive 2019/1937 (vendor claim)	✓	✓
Last verified	19 July 2026	19 July 2026

How CLUE#ZO and Whistleflow differ

Both CLUE#ZO and Whistleflow can host whistleblower report data inside the EU. CLUE#ZO references 1 of the 27 EU member states and Whistleflow references 1. Whistleflow lists ISO 27001 certification; CLUE#ZO does not. Both route buyers through a demo or sales process rather than self-serve sign-up. CLUE#ZO processes report content with AI, while Whistleflow does not. Both market themselves for EU Directive 2019/1937 compliance, so the better fit depends on your priorities around data residency, certification, pricing transparency, and use of AI.

CLUE#ZO vs Whistleflow: common questions

Does CLUE#ZO or Whistleflow host whistleblower data in the EU?

Both CLUE#ZO and Whistleflow can host whistleblower report data inside the EU.

How many EU member states do CLUE#ZO and Whistleflow cover?

CLUE#ZO references 1 of the 27 EU member states and Whistleflow references 1.

Is CLUE#ZO or Whistleflow ISO 27001 certified?

Whistleflow lists ISO 27001 certification; CLUE#ZO does not.

How do CLUE#ZO and Whistleflow pricing and sign-up compare?

CLUE#ZO is priced at Basic EUR 99/month (12 reports/year, 3 users); Standard EUR 299/month (50 reports/year, 6 users); Enterprise EUR 1,499/month (unlimited reports, 15 users). Prices are ex-VAT.. Whistleflow is priced at Basic EUR 29/month (up to 50 employees); Standard EUR 59/month (up to 250); Premium EUR 149/month (up to 500); Enterprise custom (500+). EUR 250 annual setup fee on all plans; prices exclude VAT.. Both route buyers through a demo or sales process rather than self-serve sign-up.

Do CLUE#ZO or Whistleflow use AI on whistleblower reports?

CLUE#ZO processes report content with AI, while Whistleflow does not.

Another option in this directory

CLUE#ZO and Whistleflow are two of the platforms indexed here. If your shortlist is still open, one more worth comparing — with a different set of tradeoffs:

EthicsPortal

Whistleblower reporting portal hosted on Hetzner in Germany. Flat €60/month plan.

Headquarters: Poland
Pricing: €60/month, or €41.67/month billed annually (€500/year)
EU data hosting: EU (named data centre)
EU member states referenced: All 27
Certifications: ISO 27001
AI on report content: No AI processing of report content

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Compare this tool against other platforms in the directory.

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