WhistleOn vs Zateo

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

At a glance

WhistleOn

Portuguese whistleblowing platform with voice and WhatsApp AI intake. Tiered €69–€199+/month by employee count, annual billing.

Headquarters: Lisbon, Portugal
Pricing: Tiered by employee count: €69 (1–49), €79 (50–149), €89 (150–199), €129 (200–499), €199 (500–999), quote for 1,000+. Billed annually.
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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Zateo

German whistleblowing SaaS from Selfox UG with published tiers from EUR 79/month, anonymous reporting, and Germany-based hosting on an ISO/IEC 27001-certified provider.

Headquarters: Wietzen, Germany
Pricing: Compliance Basic EUR 79/month, Compliance Pro EUR 119/month, Compliance Ultimate from EUR 399/month; all quoted monthly but billed annually, plus German VAT (zzgl. MwSt.).
EU data hosting: EU (named data centre)
EU member states referenced: 1 of 27
Certifications: None published
AI on report content: No AI processing of report content

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Full facts, side by side

Full facts, side by side: WhistleOn and Zateo
Attribute	WhistleOn	Zateo
Headquarters	Lisbon, Portugal	Wietzen, Germany
Ownership	Ouvidor Digital Whistleblowing Company	Private - Selfox UG (haftungsbeschränkt), Wietzen, Germany (Amtsgericht Walsrode HRB 207827)
Pricing	Tiered by employee count: €69 (1–49), €79 (50–149), €89 (150–199), €129 (200–499), €199 (500–999), quote for 1,000+. Billed annually.	Compliance Basic EUR 79/month, Compliance Pro EUR 119/month, Compliance Ultimate from EUR 399/month; all quoted monthly but billed annually, plus German VAT (zzgl. MwSt.).
Pricing model	Tiered (per employee)	Tiered (per employee)
Procurement model	Enterprise sales only	Self-serve sign-up
Free trial	No	✓ Yes
EU data hosting	EU (named data centre) Google Cloud Platform europe-west1 (Belgium) for European company data	EU (named data centre) Germany-based hosting on an ISO/IEC 27001-certified provider (Hetzner, vendor-stated)
EU member states referenced	1 of 27	1 of 27
EU reporting languages	4 of 24	Undisclosed
Total reporting languages	5	Undisclosed
AI on report content	Processes report content with AI / translation	No AI processing of report content
Certifications	None published	None published
National laws referenced	Portugal (Law 93/2021) Portugal (Law 109-E/2021) EU Directive 2019/1937	EU Directive 2019/1937 Germany (HinSchG)
Anonymous reporting	✓	✓
Case management	✓	✓
Multi-channel intake	✓	—
Public API	—	—
GDPR (vendor claim)	✓	✓
EU Directive 2019/1937 (vendor claim)	✓	✓
Last verified	24 May 2026	19 July 2026

How WhistleOn and Zateo differ

Both WhistleOn and Zateo can host whistleblower report data inside the EU. WhistleOn references 1 of the 27 EU member states and Zateo references 1. Neither lists an ISO 27001 certification. Zateo offers self-serve sign-up, whereas WhistleOn routes buyers through a demo or sales process. WhistleOn processes report content with AI, while Zateo 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.

WhistleOn vs Zateo: common questions

Does WhistleOn or Zateo host whistleblower data in the EU?

Both WhistleOn and Zateo can host whistleblower report data inside the EU.

How many EU member states do WhistleOn and Zateo cover?

WhistleOn references 1 of the 27 EU member states and Zateo references 1.

Is WhistleOn or Zateo ISO 27001 certified?

Neither lists an ISO 27001 certification.

How do WhistleOn and Zateo pricing and sign-up compare?

WhistleOn is priced at Tiered by employee count: €69 (1–49), €79 (50–149), €89 (150–199), €129 (200–499), €199 (500–999), quote for 1,000+. Billed annually.. Zateo is priced at Compliance Basic EUR 79/month, Compliance Pro EUR 119/month, Compliance Ultimate from EUR 399/month; all quoted monthly but billed annually, plus German VAT (zzgl. MwSt.).. Zateo offers self-serve sign-up, whereas WhistleOn routes buyers through a demo or sales process.

Do WhistleOn or Zateo use AI on whistleblower reports?

WhistleOn processes report content with AI, while Zateo does not.

Another option in this directory

WhistleOn and Zateo 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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