C5 Attestation Services
The C5 standard (Cloud Computing Compliance Criteria), issued by Germany's BSI (Federal Office for Information Security), establishes rigorous security and compliance benchmarks for cloud service providers. Achieving C5 attestation or C5 certification demonstrates robust cloud security practices, regulatory alignment, and enhanced customer trust. Accorp Partners helps cloud providers streamline their journey toward C5 cloud compliance, aligning closely with BSI requirements as well as global frameworks like SOC, ISO, and FedRAMP.Retry


Why Accorp is Your Trusted Partner for C5 Compliance
Expert cloud auditors simplify and accelerate your C5 compliance. With automated workflows and multi-standard expertise, Accorp ensures a smooth, reliable attestation.
Proven Expertise
Years of experience helping organisations achieve C5 compliance, SOC, ISO, HIPAA, PCI DSS, FedRAMP, NIS 2, and other information security certifications.
International Recognition
Accredited and trusted by global authorities, providing credible C5 cloud certification and audit services.
Specialised Professionals
A team of CPAs, auditors, and cybersecurity experts with real-world cloud and infrastructure expertise.
End-to-End Support
From readiness assessments to full C5 attestation, including control mapping and audit readiness.
Technology-Driven
Leveraging automation and AI to speed up evidence collection and analysis.
Client-Centric Approach
Transparent communication, flexible timelines, and tailored solutions for long-term cloud compliance.
Our C5 Compliance Journey – Simple & Transparent
At Accorp Partners, our C-5 assessment methodology ensures comprehensive coverage of all 114 cloud security controls required by German BSI
Planning
Define goals, scope, and milestones to align with BSI C5 certification requirements.
Foundation Setup
Conduct a kickoff session to establish objectives, documentation needs, and audit timelines.
Testing & Evidence Gathering
Evaluate and collect evidence for technical and organisational controls, with ongoing updates throughout the project.
Reporting
Deliver actionable reports within 2–4 weeks — significantly faster than standard industry cycles.
Types of C5 Audit
Type 1 – Design Only
Validates control design at a point in time. Ideal for early-stage or fast-growing companies preparing for C5 cloud certification.
Learn MoreType 2 – Design & Operation
Evaluates control operation over 6–12 months. Required for full C5:2025 attestation and enterprise-grade assurance.
Learn MoreRelated Compliance & Security Services
FedRAMP Compliance
Ensure your organization meets FedRAMP requirements and protects sensitive government information effectively
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Ensure your healthcare organization meets HIPAA requirements and protects patient data effectively
Learn MorePCI DSS Compliance
Protect cardholder data and achieve Payment Card Industry compliance
Learn More