CSA STAR Certification & Attestation Services | A-LIGN
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CSA STAR

Stand out from the crowd and increase your revenue with a CSA STAR assessment.

Are you looking to provide peace of mind to your customers? A-LIGN can help your organization demonstrate your security capabilities and posture relative to cloud offerings.
Adding CSA STAR to a SOC 2 assessment or an ISO 27001 certification is a well-recognized way to demonstrate your organization’s capabilities and maturity surrounding your cloud security controls.

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SOC assessments completed

17.5K+

ISO assessments completed

4K+

Client satisfaction rating

96%

Auditors globally

400+

Why A-lign

Gain a competitive advantage with CSA Star certification

CSA STAR (Cloud Security Alliance Security Trust Assurance and Risk Registry) assessments use an assurance framework that enables cloud service providers (CSP) to assess cloud-specific controls within their existing compliance program.

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Demonstrate cloud service security

Demonstrates your organization’s capabilities and maturity relative to the security controls of its cloud service offering.

Differentiation in a saturated market

Validates that your organization takes measures to demonstrate your security capabilities.

Accelerates sales cycles

Enterprise buyers often require vendors to meet a stringent set of cloud security requirements before procurement. CSA STAR Level 2 accelerates these sales cycles by providing third-party validation and establishing trust upfront.

OUR SERVICES

CSA STAR services

As a CSA STAR assessor, A-LIGN can help ensure your organization is included on the CSA STAR registry with an attestation or certification.

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SOC 2 + CSA STAR Attestation

A-LIGN performs a SOC 2 assessment using Trust Service Criteria outlined by AICPA in combination with the CSA Cloud Controls Matrix. The CSA STAR Attestation will result in either a Type 1 or Type 2 SOC 2 + CSA STAR Attestation report which is valid for six months or one year, respectively, from the date of completion.

ISO 27001 + CSA STAR Certification

A-LIGN conduct a rigorous third-party independent assessment of CSPs who are undergoing ISO 27001 certification using a combination of the ISO/IEC 27001:2022 management standards and the CSA Cloud Controls Matrix. This approach will result in an ISO 27001 + CSA STAR Certification which is valid for three years from completion.

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A-LIGN by the numbers

audits completed
36k+
customer satisfaction
96%
clients globally
6.4k+
auditors globally
400+
SUCCESS STORIES

Why security leaders trust A-LIGN

"The A-SCEND platform helps streamline our audit process by centralizing all audit activities in one platform. This is especially helpful for tracking the audit progress and makes managing multiple audits more efficient."

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Director, IT Security

Erika Fry

Boomi

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“The A-SCEND platform helps streamline our audit process by centralizing all audit activities in one platform. This is especially helpful for tracking the audit progress and makes managing multiple audits more efficient.”

Compliance Officer

Medium Enterprise Financials Company

"A-LIGN’s user-friendly platform A-SCEND streamlines the auditing process, making it efficient and accessible for our teams. Their commitment to excellence and transparent practices has established a trusted partnership, providing Boomi with the confidence that our auditing needs are in capable hands."

VP of IT

Stefan Romberg

Boomi

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“SAS has a strong growth mindset—and A-LIGN demonstrated a strong desire to grow alongside SAS, providing leadership that aligned with SAS’ own ambitions. ”

Senior Director, GRC-A

Cathy Smith

SAS

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Helpful Resources

Support for your compliance journey

From guides to whitepapers, we've got the resources to move your compliance program forward.

View resources
Resource Article What is CSA STAR 1 0
BLOG
What Is CSA STAR and Why Is It Valuable for Cloud Service Providers?
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Resource Article Transition to CSA STAR Cloud Controls Matrix v4 1 0
Blog
Understanding the Transition to CSA STAR Cloud Controls Matrix v4
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Resource TeamViewer 1 0
Case Study
TeamViewer scales global compliance initiatives with A LIGN and Vanta
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Whitepaper
2026 Compliance Benchmark Report
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Frequently asked questions

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What is CSA STAR and why is it relevant for cloud providers?

CSA STAR (Security, Trust, Assurance, and Risk) is a program developed by the Cloud Security Alliance to help cloud service providers demonstrate their security posture to customers. It uses the CSA Cloud Controls Matrix as its underlying framework and is recognized internationally as a key benchmark for cloud security assurance.

What are the three levels of CSA STAR?

Level 1 is a self-assessment that CSPs can publish into the STAR Registry. Level 2 involves a third-party assessment that results in a STAR Certification or STAR Attestation. Level 3 is a continuous monitoring-based program. A-LIGN delivers Level 2 assessments via both the SOC 2 and ISO 27001 pathways.

How long does a CSA STAR assessment take?

The timeline for a CSA STAR Level 2 assessment depends on which base assessment it is paired with (SOC 2 or ISO 27001), the scope and complexity of your cloud service environment, and the maturity of your existing cloud security controls. Organizations combining CSA STAR with an existing SOC 2 or ISO 27001 engagement typically benefit from a significantly more efficient process.

Is CSA STAR mandatory for cloud service providers?

CSA STAR is voluntary, but it is increasingly expected by enterprise customers conducting vendor security assessments. Being listed in the CSA STAR Registry demonstrates transparency and provides stakeholders with a standardized view of your cloud security controls.

Ready to get started?

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A-LIGN is the leading cybersecurity compliance partner, trusted by over 6,400 organizations worldwide to navigate the complexities of compliance, audit, and risk. With a tech-enabled delivery model and deep domain expertise, A-LIGN delivers high-quality, efficient audits across frameworks including SOC 2, ISO 27001, FedRAMP, CMMC, ISO 42001, PCI, and HITRUST.

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Price and Associates CPAs, LLC dba A-LIGN ASSURANCE is a licensed certified public accounting firm registered with the Public Company Accounting Oversight Board (PCAOB). A-LIGN Compliance and Security, Inc. dba A-LIGN is a leading cybersecurity and compliance professional services firm.

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