The best HIPAA-compliant cloud storage platforms in 2026

The best cloud storage for HIPAA compliance is not necessarily the platform with the longest security checklist. It is the one that fits your workflows, offers an appropriate business associate agreement (BAA), and gives your organization the controls needed to protect electronic protected health information (ePHI).

The U.S. Department of Health and Human Services (HHS) makes an important distinction: using a secure cloud service does not automatically make an organization HIPAA compliant. A cloud provider handling ePHI generally becomes a business associate, requiring a BAA. The customer must still perform a risk analysis, configure the service appropriately, control access, train users, and monitor the environment.

This guide compares 11 cloud storage providers using current government guidance and first-party vendor documentation. Couchdrop connects with a wide range of cloud storage platforms rather than requiring customers to adopt a particular provider, giving us a practical, vendor-agnostic view of how storage fits into wider healthcare file workflows.

How we researched this guide

We reviewed each provider’s published HIPAA and BAA documentation as of September 8, 2026. We considered:

• The provider’s intended storage and collaboration use cases
• BAA availability and documented plan or service limitations
• Administrative, sharing, logging, governance, and encryption capabilities
• Material exclusions and customer responsibilities
• Suitability for healthcare partner, EHR, SFTP, claims, imaging, and document workflows

The short list

What “HIPAA-compliant cloud storage” really means

There is no government-issued HIPAA certification for cloud storage products. HHS does not endorse, certify, or recommend particular vendors.

Instead, HIPAA compliance is a shared operational and contractual responsibility. HHS states that a cloud service provider that creates, receives, maintains, or transmits ePHI is generally a business associate—even when the data is encrypted and the provider does not hold the decryption key. Before ePHI is placed in a cloud service, the parties must execute an appropriate BAA. See the agency’s cloud guidance and business-associate guidance.

A sound evaluation should therefore ask:

• Will the provider sign a BAA for the exact plan and services you intend to use?
• Which features, integrations, regions, and add-ons are included or excluded?
• Can administrators enforce least-privilege access, multi-factor authentication, sharing restrictions, retention, and account offboarding?
• Are access and file events logged in enough detail for audits and investigations?
• How will the organization back up, recover, export, and delete ePHI?
• Where will data be stored and processed, and does that meet organizational requirements?
• Can the service fit existing EHR, partner, SFTP, claims, imaging, and document workflows without creating unmanaged copies?

1. Box: best overall for enterprise healthcare content management

Box is one of the strongest all-round choices for larger healthcare and life sciences organizations that need content collaboration plus mature administrative and governance controls.

Box says it signs BAA addenda for customers on Enterprise, Enterprise Plus, and Enterprise Advanced accounts. Its HIPAA documentation lists encryption in transit and at rest, access controls, account activity reporting, audit trails, restricted employee access, and disaster-resilience measures. Box also makes an important point that applies to every provider in this guide: customers remain responsible for configuring the service and enforcing appropriate organizational policies.

Best for: Hospitals, health systems, insurers, life sciences companies, and enterprises that want a central content layer with detailed governance.

Strengths

• Granular permissions and administrative controls
• Content activity reporting and audit trails
• Enterprise governance and retention options
• Broad collaboration and healthcare integration ecosystem

Watch-out

• BAA eligibility is tied to enterprise plans.
• An integration is not automatically covered just because it connects to Box. Each third-party service that handles ePHI needs its own compliance review and, where required, its own BAA.

2. Google Workspace and Drive: best for Google-centric organizations

Google Drive is a practical choice for organizations already standardized on Google Workspace. Staff know the interface, shared drives support team-owned files, and Drive works closely with Docs, Sheets, and other Workspace tools.

Google states that customers subject to HIPAA must enter its BAA before using PHI in Google services. Only services on Google’s current HIPAA Included Functionality list are covered, and Google provides an implementation guide for administrators. Google also explicitly says third-party applications and add-ons are not covered by the Google Workspace BAA.

Best for: Practices, healthcare services businesses, and distributed teams already using Google Workspace.

Strengths

• Familiar document collaboration and shared drives
• Central administration and sharing controls
• Encryption in transit and at rest
• Broad productivity ecosystem

Watch-out

• Accept the BAA before using PHI and restrict PHI to included functionality.
• Review external sharing, OAuth access, third-party apps, endpoint management, and audit coverage.
• Convenience can lead to oversharing unless domain-wide controls and staff policies are carefully set.

Important caveat

The BAA doesn't make every Google product or third-party integration acceptable for PHI. You must keep PHI within covered functionality and configure your environment appropriately.

3. Microsoft OneDrive and SharePoint: best for Microsoft 365 organizations

For organizations already invested in Microsoft 365, OneDrive and SharePoint are often the most natural choice. OneDrive handles individual work files, while SharePoint supports team sites, document libraries, permissions, and records-oriented workflows.

Microsoft makes contractual assurances through its HIPAA BAA for in-scope cloud services. Microsoft’s current compliance material includes OneDrive for Business and SharePoint Online among the listed commercial services. Microsoft also stresses that its BAA and cloud safeguards do not make a customer’s solution automatically compliant. Its OneDrive security and compliance overview explains how OneDrive inherits relevant Microsoft 365 and SharePoint controls.

Best for: Healthcare organizations using Microsoft 365, Entra ID, Teams, and Purview.

Strengths

• Strong fit with existing Microsoft identities and productivity tools
• SharePoint libraries and team collaboration
• Broad security, data lifecycle, and compliance capabilities
• Centralized identity and access management

Watch-out

• OneDrive, SharePoint, Teams, and connected applications form an ecosystem; assess the complete workflow, not only the storage location.

Weaknesses

Microsoft's security and governance stack is powerful, but it can become considerably more complicated than products such as Sync.com or Dropbox.

4. Egnyte: best for governance and sensitive-content control

Egnyte combines file collaboration with governance and security capabilities, making it a strong option for mid-market and enterprise organizations that want more control over sensitive unstructured data.

Egnyte’s HIPAA statement says the company acts as a business associate to covered-entity customers and will enter into a BAA. Its public material describes safeguards and contractual obligations around permitted use, disclosure, incident reporting, and subcontractors.

Best for: Organizations prioritizing sensitive-data governance, controlled collaboration, and visibility across file repositories.

Strengths

• Governance-focused positioning
• Centralized file access and collaboration
• Useful fit for regulated data and hybrid content environments

Watch-out

• Public BAA documentation is less specific about current eligible packages than some competitors. Confirm the exact plan, features, regions, and contract terms with Egnyte before purchase or publication.

5. Dropbox Business: best for familiarity and quick adoption

Dropbox remains one of the most familiar file sync and sharing experiences. Its current HIPAA/HITECH documentation says specified Dropbox team plans support a BAA, and eligible US-based team administrators can execute one through the admin console.

Dropbox provides recommendations for sharing permissions, deletion controls, activity monitoring, and third-party apps. It also makes two exclusions especially clear: third-party apps are not covered by the Dropbox BAA, and Dropbox Dash does not support HIPAA compliance.

Best for: Smaller and mid-sized organizations that prioritize user familiarity and simple cross-device file access.

Strengths

• Familiar user experience
• Straightforward file synchronization and sharing
• Electronic BAA process for eligible US team accounts

Watch-out

• Validate the precise plan and features covered by the BAA.
• Review every connected application separately.
• Do not assume every product carrying the Dropbox brand is covered.

6. Amazon S3: best for application storage and archives

Amazon Simple Storage Service (S3) is a different category from Box, Drive, or Dropbox. It is object storage used by developers and IT teams for applications, archives, backups, data lakes, and large-scale repositories.

AWS offers a standard BAA through AWS Artifact. AWS says PHI may be processed, stored, or transmitted only through HIPAA-eligible services, and Amazon S3 is included in AWS compliance documentation. Customers still own extensive responsibilities under the AWS shared responsibility model, including identity policies, encryption choices, logging, networking, retention, application security, and monitoring.

Best for: Custom healthcare applications, backups, imaging repositories, analytics pipelines, and organizations with cloud engineering expertise.

Not ideal for: Teams that simply need a ready-to-use document collaboration interface.

7. Microsoft Azure Storage: best for Azure-native healthcare workloads

Azure Blob Storage and Azure Files cover two related needs. Blob Storage is object storage for applications, backups, archives, and data platforms; Azure Files provides managed file shares for cloud and hybrid environments.

Microsoft’s HIPAA offering includes a BAA for in-scope Azure services and emphasizes that customers remain responsible for configuring their solutions appropriately.

Couchdrop offers native connectors for both Azure Blob Storage and Azure Files. A container or file share can appear as a managed folder for SFTP, FTP/S, portal, and automated transfers.

Best for: Organizations building on Azure or needing managed file shares alongside Microsoft identities and applications.

Strengths

• Choice of object storage and managed file shares
• Strong fit with Azure and Microsoft security services
• Scalable storage for applications, archives, and partner data

Watch-out

• Azure Storage is infrastructure, not a turnkey document collaboration product.
• Identity, network access, encryption, logging, lifecycle, and recovery settings require deliberate architecture.

8. Google Cloud Storage: best for Google Cloud applications and analytics

Google Cloud Storage is object storage for application data, archives, backups, imaging, and analytics pipelines. It is distinct from Google Drive, which is designed for end-user file collaboration.

Google provides a HIPAA compliance program and BAA for covered Google Cloud products. Customers must use covered services and configure their workloads consistently with their responsibilities.

Couchdrop provides a native Google Cloud Storage connector, allowing GCS storage buckets to be the source or destination for secure file-transfer and automation workflows.

Best for: Healthcare applications, data engineering, analytics, and organizations already using Google Cloud.

Strengths

• Scalable object storage and lifecycle options
• Close fit with Google Cloud data services
• Suitable for application and large-dataset storage

Watch-out

• Not a replacement for Drive-style team collaboration.
• Access policies, service accounts, logging, regions, and downstream services all need review.

9. Wasabi: best for predictable-cost backups and archives

Wasabi is an S3-compatible object storage platform aimed at backups, archives, media, and large datasets. The company publishes a Business Associate Agreement and describes its approach to HIPAA and HITECH.

Best for: Healthcare backups, recovery copies, long-term records, and imaging archives where predictable object-storage economics matter.

Strengths

• S3-compatible API
• Immutability and security controls intended for backup and archive use
• Simpler storage model than the large hyperscale clouds

Watch-out

• It is object storage, not a user-facing collaboration suite.
• Confirm the applicable BAA, account configuration, region, retention design, and connected backup software.

10. Tresorit: best for zero-knowledge encrypted collaboration

Tresorit is a strong fit when client-side, zero-knowledge encryption is a leading selection criterion. Its current BAA documentation says BAAs are available for Professional, Business, and Enterprise subscriptions, while Personal and Basic plans are not eligible.

Tresorit describes permission-based access and an architecture intended to prevent unauthorized access to stored data. Remember that encryption does not remove the need for a BAA: HHS says a cloud provider that maintains encrypted ePHI remains a business associate even if it does not have the key.

Best for: Privacy-conscious professional teams, research groups, and organizations needing secure external collaboration.

Strengths

• Zero-knowledge encryption model
• Granular, permission-based sharing
• BAA eligibility across several paid business subscriptions

Watch-out

• Consumer plans are not eligible.
• Zero-knowledge architecture can affect integrations, content inspection, recovery, and workflow design; test your operational requirements.

11. Sync.com: best for smaller privacy-focused teams

Sync.com is a more approachable option for smaller organizations that value privacy-focused file storage and sharing. The company publishes a HIPAA BAA and HIPAA implementation information, giving prospective customers a concrete starting point for legal and technical review.

Best for: Smaller healthcare teams and business associates seeking straightforward encrypted storage without the breadth of a full enterprise productivity suite.

Strengths

• Privacy-first product design
• Published BAA documentation
• Secure file sharing and team storage features

Watch-out

• Confirm current plan eligibility before buying.
• The administration, governance, and third-party integration ecosystem is narrower than Microsoft, Google, or Box.

How to choose the right cloud storage for PHI

A provider’s willingness to sign a BAA should be the beginning of your evaluation, not the deciding factor. The right platform must also suit the way your organization creates, accesses, shares, transfers, retains, and recovers ePHI. Use the following checklist to compare providers consistently and identify any legal, security, or operational questions that need to be resolved before migration.

1. Map where ePHI moves. Document every system, user group, external partner, integration, and transfer method that creates, receives, stores, or transmits ePHI.
2. Choose the appropriate type of storage. Decide whether you need a collaboration suite for everyday files, a governance platform for controlled content, or infrastructure storage for applications, backups, and archives.
3. Confirm the BAA and its scope. Get written confirmation covering the relevant legal entity, plan, services, regions, features, integrations, and subprocessors.
4. Evaluate the available controls. Review identity management, MFA, least-privilege access, external sharing, audit logs, retention, recovery, deletion, exports, and incident-response capabilities.
5. Perform and document a risk analysis. HHS requires regulated organizations to identify and assess risks to the confidentiality, integrity, and availability of ePHI.
6. Configure the environment before migration. A signed BAA does not automatically make an account or workflow HIPAA compliant.
7. Review the environment continuously. Monitor access, integrations, inactive accounts, sharing links, security events, product changes, and updated contractual terms.

Secure your HIPAA data in motion, not just at rest

A storage platform can protect files at rest and support collaboration, but ePHI often needs to move between EHRs, payers, clearinghouses, labs, imaging systems, partners, SFTP servers, and cloud repositories.

That transfer layer needs the same level of scrutiny as the final storage destination. Manual transfers, email attachments, and unmaintained SFTP or MFT servers can create gaps in access control, auditability, and retention.

Couchdrop adds managed file transfer capabilities to the cloud storage you already use, including SharePoint, Azure, Amazon S3, and Google Workspace. Organizations can exchange files through SFTP, secure upload portals, shared links, and automated workflows without replacing their existing storage platform.

For additional control over data in motion, Transfer Shield can scan and classify files as they move through Couchdrop. Policies can flag, block, hold or route files containing PHI or other sensitive data, with enforcement decisions recorded in the audit trail.

For healthcare customers and other organizations transferring ePHI, Couchdrop offers dedicated HIPAA-ready infrastructure with US-based processing. A signed BAA must be in place before transferring HIPAA-regulated data.