GDPR-Compliant AI Training Platforms: 10 Compared (2026)

Careertrainer.ai runs voice-based AI roleplays for leadership, sales, negotiation and service conversations with immediate feedback. Per the imprint, the operator is Jannik Lindner, based in Baden, Austria: an EU operator whose servers sit in Germany. The vendor documents that split itself, and that is why it ranks second here.

Its GDPR page is the most granular public documentation in this field. The application and database run on Hetzner in Frankfurt am Main, with backups in AWS S3 in the Frankfurt region. There is a named sub-processor list with country and transfer basis for each entry, including OpenAI and OpenRouter in the US under Standard Contractual Clauses. The page states that conversation data is never used for AI model training, and that data processing agreements are in place with every listed provider. What is not publicly documented is an ISO 27001 certification of the vendor itself; the certification named belongs to the data centre.

Vertriebs AI is a German platform for sales conversations with AI personas: cold calling, negotiation, objection handling. The operator per the imprint is MW Software GbR, Hinschstr. 18, 22525 Hamburg. The product targets organizations in Germany, Austria and Switzerland, from five people upwards.

The privacy policy is unusually specific for a vendor this size. Conversation analysis data is stored in the Azure region Germany West Central in Frankfurt and document extraction data in Sweden Central, with processing inside Microsoft's EU Data Zone. The DPA names the same regions, while the homepage names only Sweden Central. Firebase runs in Google Cloud regions in the EU, PostHog in the Frankfurt am Main data centre, and speech synthesis through ElevenLabs in an isolated EU environment (checked 13 October 2026). Per vendor, conversations and transcripts are not used to train AI models, and a data processing agreement is published at vertriebs-ai.de/avv. An ISO 27001 certification is not publicly documented.

Fioro Technology GmbH, Liebigstr. 7 in Munich (HRB 293659), builds an AI coach for sales and communication. It targets companies that sell through field reps, franchisees or independent sales partners. Per vendor, the platform combines roleplays with AI buyers, learning paths and feedback on every statement. The vendor is a German limited company, which shortens the contracting path for European buyers.

The trust center at trust.fioro.ai lists Frankfurt on Google Cloud as the location of its app and database. It names twelve sub-processors, all with EU locations, including its voice, transcription and authentication services. The ISO/IEC 27001:2022 certificate from Prescient Security LLC is available there without a login, including its scope (number 123331, issued 7 July 2026, valid until 6 July 2029). The homepage and trust center state that customer data is not used for AI training. An annex to the terms describes the corresponding commitments from its LLM providers Google, Amazon and Microsoft. Fioro describes itself as DORA-ready and offers a DORA addendum. Its DPA, audit report and penetration test are available on request. The privacy policy, dated 28 July 2026, names the same services by their legal entities, many of them US companies, without specifying regions. There are no public prices, but a seven-day free trial is available (checked 27 October 2026).

3spin Learning GmbH & Co. KG of Darmstadt came out of VR and AR training and added AI conversation practice for communication, leadership and service. For a manufacturer that already runs immersive training, this is the shortest path from a headset programme to spoken dialogue practice.

The data protection page documents hosting in Germany by default on Microsoft Azure infrastructure, ISO/IEC 27001-certified data centres, and an Azure infrastructure that meets ISO 27001, C5, TISAX and GDPR. 3spin publishes no ISO 27001 certification of its own, and it does not say where its AI processing runs. Per vendor, your inputs and training data are not used to train or improve the AI models employed, voice inputs are processed only temporarily, and audio recordings are not stored permanently. Per the German FAQ, a DPA under Art. 28 GDPR is provided, but it is not public.

Second Nature AI Inc. is one of the earlier entrants in AI sales roleplay, with offices in Tel Aviv and New York. Simulation quality and the breadth of scenarios from discovery through cold calling are why the platform keeps appearing on shortlists.

Its FAQ answers all three questions. Per vendor, all data is stored in a Google Cloud Platform data center in the Netherlands with AES-256 encryption at rest and in transit; the platform names GDPR, SOC 2 and CCPA; and customer data is never used for AI model training and remains isolated. More than 25 languages are supported, per vendor. What stays open is therefore not transparency but the contracting party: the terms name the law of the State of New York as governing law and New York as the venue, and a US company falls under the CLOUD Act even when the data sits in the Netherlands. An ISO 27001 certification, a DPA and a sub-processor list are not publicly documented.

Retorio GmbH, Landwehrstr. 63 in Munich (HRB 243225, managing director Dr. Patrick Oehler), is among the most visible AI coaching vendors in the German-speaking market and works with video-based behavioural simulations for sales, leadership and service.

Its ethics and privacy page is direct: client and candidate data is hosted exclusively on ISO-certified servers within the European Union per vendor, all servers are ISO 27001 certified, and Retorio describes itself as GDPR compliant and aligned with the EU AI Act. The FAQ goes further and names Google Cloud with EU data residency as the platform, plus the point that Retorio coaches on practice conversations by default, so a programme can run without touching a single live customer recording. The page also states that it does not conduct biometric analysis and does not use biometric data for individual or emotion recognition. On model training, Retorio states on its homepage that it does not train its models on client data and offers a DPA on request there; the ethics page and the FAQ do not spell out either point, documenting only that its models are trained on diverse, bias-mitigated datasets.

Jam Technologies GmbH, Jennerstraße 7a in Munich, combines AI roleplays with talent assessment, call scoring and deal support in one platform. For revenue teams that do not want coaching and conversation analysis living in two contracts, it is the densest bundle in this field.

Per vendor, Jam is GDPR compliant, CyberVadis Silver rated, and operates with EU data residency. The trust center at trust.wejam.ai lists CyberVadis Silver with a score of 831, GDPR, and a Data Processing Agreement as an available document. ISO 27001 and SOC 2 are not listed there. According to the security FAQ in its product documentation, all data is stored in the EU. The AI models come primarily from OpenAI, and where inference runs is not documented. Per vendor, customer data is not used to train the models (checked 27 October 2026).

Hyperbound is operated by IntelligentSystems Corp., 10791 Johnson Ave, Cupertino, CA 95014, USA. The platform pairs AI roleplays with analysis of real recorded calls and coaching agents, and it is one of the better known names in the category in the US market.

Publicly documented in its trust center: SOC 2 Type 2, ISO 27001:2022 and HIPAA, a Data Processing Addendum for business customers on request, and the statement that Hyperbound does not train on your data. The privacy policy names Anthropic, AWS AI, OpenAI and Microsoft Azure AI as AI service providers. The pricing page lists EU data residency as an add-on for the Enterprise tiers Practice and Perform; it does not apply by default, and the trust center names the United States as the location of all servers. The Californian domicile means the vendor falls under the US CLOUD Act, and that question has to be answered separately from the server question.

Yoodli, Inc., headquartered in Seattle, Washington, has the lowest barrier to entry in this field: communication coaching and roleplays a single person can try without a procurement process. It is one of two vendors here that publish list prices.

Yoodli says it is GDPR compliant and has SOC 2 Type 2, following a 2024 audit by Prescient Security, per vendor. No ISO 27001 certification is publicly documented. Prices as of 27 October 2026: a free Starter tier with five sessions, Pro at 8 US dollars per month billed annually, Advanced at 20 US dollars per month billed annually. Business is priced per seat, and Enterprise, for 5,000+ employees, is available on request. The training question does get an answer here, and it reads differently from every other vendor on this page. Per the pricing page, roleplay data is excluded from AI training by default from the Advanced plan up and on business plans. Session data on Starter and Pro may be used to improve the platform. The terms of use, dated 7 September 2023, also grant Yoodli a perpetual, irrevocable licence to submitted content that explicitly includes model training. That document provides no opt-out. The privacy policy, by contrast, offers an opt-out in the profile settings. A service agreement takes precedence over the terms, so put the exclusion in your contract. Per its trust center, Yoodli hosts in the US on Google Cloud, and no EU data residency is publicly documented. The privacy policy allows processing in any country where Yoodli or its providers operate and names an EU representative in Ireland. No DPA is publicly documented. On top of that comes the CLOUD Act question that applies to any US vendor.