Whispero vs Zateo

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

At a glance

Whispero

Czech whistleblowing channel from Parhesys s.r.o. combining reporting software with legal support, priced from 490 CZK per month.

Headquarters: Prague, Czechia
Pricing: BASIC from 490 CZK/month; STANDARD from 990 CZK/month; PREMIUM from 2,490 CZK/month.
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: Whispero and Zateo
Attribute	Whispero	Zateo
Headquarters	Prague, Czechia	Wietzen, Germany
Ownership	Private, Parhesys s.r.o. (Czech IČO 09903534)	Private - Selfox UG (haftungsbeschränkt), Wietzen, Germany (Amtsgericht Walsrode HRB 207827)
Pricing	BASIC from 490 CZK/month; STANDARD from 990 CZK/month; PREMIUM from 2,490 CZK/month.	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	Self-serve sign-up	Self-serve sign-up
Free trial	✓ Yes	✓ Yes
EU data hosting	EU (named data centre) Data stated to remain within the EU (vendor-stated); provider and country not disclosed on public pages reviewed	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	Undisclosed	Undisclosed
Total reporting languages	Undisclosed	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	EU Directive 2019/1937 Czechia (Act No. 171/2023 Coll., zákon o ochraně oznamovatelů)	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	19 July 2026	19 July 2026

How Whispero and Zateo differ

Both Whispero and Zateo can host whistleblower report data inside the EU. Whispero references 1 of the 27 EU member states and Zateo references 1. Neither lists an ISO 27001 certification. Both offer self-serve sign-up without a mandatory sales call. Whispero 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.

Whispero vs Zateo: common questions

Does Whispero or Zateo host whistleblower data in the EU?

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

How many EU member states do Whispero and Zateo cover?

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

Is Whispero or Zateo ISO 27001 certified?

Neither lists an ISO 27001 certification.

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

Whispero is priced at BASIC from 490 CZK/month; STANDARD from 990 CZK/month; PREMIUM from 2,490 CZK/month.. 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.).. Both offer self-serve sign-up without a mandatory sales call.

Do Whispero or Zateo use AI on whistleblower reports?

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

Another option in this directory

Whispero 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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