DeepL achieves C5 Type 2 attestation, cementing its position as the enterprise Language AI solution of choice in Germany
Trusted by over 200,000 business customers worldwide, the attestation underscores DeepL’s commitment to advancing AI innovation with enterprise-grade security and transparency
Cologne, August 26, 2025 – DeepL, a global leader in Language AI, today announced it has successfully obtained the C5 Type 2 ("Cloud Computing Compliance Criteria Catalogue") attestation. Developed by the German Federal Office for Information Security (BSI), the C5 framework sets rigorous requirements for cloud providers and serves as a key benchmark for enterprises evaluating secure, compliant solutions. This achievement further positions DeepL as a trusted provider of Language AI and platform of choice for organizations operating in regulated industries, enabling businesses to adopt AI with confidence while supporting growth at scale.
Enterprise-ready security and compliance
For businesses in regulated industries, such as healthcare and government, security is non-negotiable. The C5 framework helps organizations meet legal and regulatory requirements while ensuring sensitive data is protected. Specifically, the Type 2 attestation goes beyond a one-time audit by evaluating not only the design of security controls but also their ongoing effectiveness over a set period – proving they work in practice. This enables enterprises to confidently adopt DeepL as a core tool for communication, translation, and business-critical workflows.
“Achieving the C5 Type 2 attestation is an important milestone in DeepL’s ongoing commitment to security, compliance and trust,” said Jaroslaw Kutylowski, CEO and Founder of DeepL. “We’ve built our Language AI platform from the ground up to meet the highest security standards so that businesses in Germany and beyond can confidently implement our solutions across their organization. This attestation reinforces that our focus on innovation goes hand in hand with reliability and data protection.
Language AI built for business growth
DeepL’s platform addresses one of the most pressing challenges for enterprises: breaking down language and communication barriers. With advanced translation and writing tools spanning written and spoken translation, AI-powered writing support, and a robust API, DeepL enables secure, scalable communication purpose-built for businesses and professionals. Today, over 200,000 business customers – including leaders like Beiersdorf, Harvard Business Publishing and the ifo Institute – rely on DeepL's platform to power clear, effective communication across languages for a wide range of use cases, from internal collaboration to global customer support.
Alongside the C5 attestation, DeepL also meets top security standards such as SOC 2 Type II and HIPAA, providing enterprise-grade protection for secure multilingual communication.
To learn more about DeepL, visit https://www.deepl.com/whydeepl, and for more information on DeepL's commitment to privacy and security, visit DeepL's Trust Center.
About DeepL
DeepL is on a mission to break down language barriers for businesses and individuals everywhere. Over 200,000 business customers and millions of individuals across 228 global markets trust DeepL’s Language AI platform for human-like translation in both written and spoken formats, as well as natural, improved writing. Designed with enterprise security in mind, companies around the world leverage DeepL’s AI solutions, specifically tuned for language, to transform business communication, expand markets, and improve productivity. Founded in 2017 by CEO Jaroslaw “Jarek” Kutylowski, DeepL now has over 1,000 passionate employees and is supported by world-renowned investors including Benchmark, IVP, and Index Ventures.