List of the Top 23 Cloud Storage Services for Microsoft 365 in 2026

Files.com is a cloud-native Managed File Transfer (MFT) platform that unifies file transfers, sharing, and automation across any cloud, protocol, or partner. It connects 50+ storage systems — including Amazon S3, Azure, Google Drive, SharePoint, Dropbox, and Box — presenting them as a single seamless namespace. ​ Files.com supports SFTP, FTP/FTPS, AS2, HTTPS, WebDAV, and REST APIs, making it compatible with virtually any system or partner. Automated workflows eliminate manual scripts and reduce admin overhead by up to 90%. ​ Enterprise-grade security includes AES-256 encryption, SOC 2 Type II certification, HIPAA/GDPR compliance, full audit trails, SSO (Okta, Azure AD, and more), and 2FA. With a 99.99% uptime history and zero data breaches in 15 years, Files.com is trusted by IT teams in finance, healthcare, and technology. Available via web, desktop (Windows/macOS), mobile (iOS/Android), and on-premises agent (Windows/macOS/Linux)

Dropbox Business goes beyond just providing secure file storage; it creates a versatile workspace that seamlessly unites teams, tools, and content. Users are enabled to create, store, and share their cloud content across a variety of applications, which includes Google Docs, Sheets, Slides, Microsoft Office files, and Dropbox Paper, in addition to traditional files saved in Dropbox. With Dropbox Spaces, all your files and cloud-based resources are consolidated, allowing for easy access to PowerPoint presentations alongside Google Docs, Trello boards, and other tools your team may use. Whether you're using a computer, mobile device, or a web browser, accessing your team's collaborative work is simple and efficient. By integrating platforms like Slack and Zoom, your team's files and discussions can be kept organized in one central location. Furthermore, the smart suggestions for files and folders enhance your team's ability to access critical content when it’s needed most. A strong and secure infrastructure, combined with administrative tools that provide enhanced control and visibility, ensures that your organization’s data remains safeguarded within Dropbox. This all-encompassing approach not only increases productivity but also nurtures collaboration among team members, significantly improving overall effectiveness. Ultimately, Dropbox Business is designed to adapt and grow with your team’s needs, making it an invaluable asset for modern workplaces.

Store, sign, and secure your documents on Box, the leading Intelligent Content Management platform. Built for the AI-first era, Box simplifies your tech stack and conserves cost with one secure, end-to-end solution for the entire content lifecycle.

Onehub serves as a secure platform for file storage and sharing, catering to businesses of all sizes. With bank-level encryption and a detailed, role-based permissions system, Onehub lets you manage access to your files, enabling you to share sensitive business documents with peace of mind. The platform includes an array of robust business tools such as virtual data rooms, client portals, and integration with Google Docs. In addition, features like automatic watermarking, customized workspaces, and tailored agreements help enhance and streamline the file-sharing process. You can personalize your Onehub Workspace to ensure that shared content appears professional and polished, and you have the flexibility to create a dedicated Client Portal. Moreover, Onehub's virtual data room facilitates the secure transfer of confidential information to clients while maintaining the anonymity of collaborators, ensuring that privacy and security are prioritized throughout business transactions.

Designed for beginners yet robust for experts, you can seamlessly interact with SharePoint and OneDrive directly from the applications you frequently use. Effortlessly edit files created in Adobe, text editors, and all versions of Office. Additionally, you can connect to Box, S3, Google Drive, Dropbox, and other Office apps via Windows Explorer or Mac Finder. WebDrive serves as a familiar FTP client, allowing you to efficiently utilize FTP and SFTP servers to assign drive letters, enhancing both productivity and ease of use. Acting as a WebDAV client, WebDrive enables you to mount files during startup and secure them effectively, functioning similarly to the built-in Windows WebDAV redirector. For larger organizations, the setup process is streamlined, requiring minimal installation time. Moreover, settings can be customized and deployed to all users without the need to adjust each individual computer, facilitating a consistent experience. By accessing remote files without the need for syncing, you can conserve space on your device while simultaneously boosting security, significantly lowering the chance of data loss or theft. This approach not only simplifies file management but also promotes a more secure work environment.

Tresorit is a zero‑knowledge, end‑to‑end encrypted cloud collaboration platform built for organizations and individuals who need maximum control over sensitive data. It enables secure file storage, synchronization, and sharing while ensuring that only the data owner and explicitly authorized users can access content. Files are encrypted on the user’s device before upload, and encryption keys are never accessible to Tresorit, protecting data from internal access, breaches, and unauthorized disclosure. The platform supports secure internal collaboration through encrypted folders and workspaces with granular permission controls. Teams can define who may view, edit, or manage files, revoke access at any time, and track activity to maintain visibility and accountability. Tresorit also enables secure external sharing via encrypted links and protected email delivery, replacing risky attachments and unsecured file transfers with controlled, auditable exchanges. For client‑ and partner‑facing collaboration, Tresorit provides encrypted data rooms that centralize documents, tasks, and approvals in a single secure environment. These data rooms are designed for ongoing collaboration rather than one‑off transactions, allowing organizations to manage long‑term external projects while maintaining strict confidentiality. Integrated digital signatures make it possible to review and sign documents without leaving the encrypted workspace, preserving security throughout the entire document lifecycle. With advanced administrative controls, audit logs, and configurable data residency options, Tresorit is built to support compliance with strict data protection and regulatory requirements. By combining strong security with intuitive usability, Tresorit enables productive collaboration without compromising privacy, ownership, or trust.

PreVeil transforms the landscape of end-to-end encryption by providing exceptional security for organizations' emails and files, shielding them from various threats such as phishing, spoofing, and business email compromise. The platform prioritizes user-friendliness, making it accessible for employees while remaining simple for administrators to manage. By implementing PreVeil, companies can utilize a secure and easy-to-navigate encrypted email and cloud storage solution that protects vital communications and documents effectively. With its advanced end-to-end encryption, PreVeil guarantees that data is safeguarded at every stage of its lifecycle. Moreover, the platform includes a feature known as the “Trusted Community,” which promotes secure interactions among employees, contractors, vendors, and other external entities. This groundbreaking addition enables users to exchange sensitive materials with confidence, assured that they are shielded from prevalent cyber threats. Ultimately, PreVeil not only enhances security for organizations but also cultivates a cooperative atmosphere that encourages teamwork and collaboration among its users. By prioritizing both safety and usability, PreVeil addresses the evolving needs of modern businesses.

OwnCloud serves as an open-source platform designed for collaborative content management, enabling teams to seamlessly share and work on files from any device, regardless of their physical location. With over 100 million users globally, it stands out as a viable alternative to public cloud services, empowering individuals and organizations to prioritize their digital sovereignty, enhance security, and ensure robust data protection. Furthermore, its flexibility and user-friendly interface make it an appealing choice for diverse groups looking to manage their files effectively.

The Barracuda Cloud Archiving Service provides a robust cloud archiving solution designed to help organizations meet strict compliance requirements while effectively managing e-discovery inquiries. It integrates seamlessly with platforms such as Office 365 and G Suite, utilizing Barracuda’s Cloud to store data indefinitely, thereby ensuring that the information remains preserved and unchanged. By enabling users to access all messages sent or received from any device, it significantly boosts productivity across the board. This service works harmoniously with various email systems, including Office 365 and Exchange, offering a comprehensive cloud archive without the need for additional hardware or software investments from users. Additionally, the service features a flexible Outlook add-in, mobile applications for both iOS and Android, and a user-friendly web interface that streamlines the retrieval and restoration of messages, including those deleted from the mail server. Consequently, the Barracuda Cloud Archiving Service not only makes compliance easier but also provides users with exceptional access to their entire communication history, ensuring that vital information is always at their fingertips. This level of accessibility fosters greater collaboration and enhances organizational efficiency.

This innovative product integrates three crucial functionalities: seamless file synchronization and sharing, continuous real-time backup, and comprehensive antivirus protection that includes defenses against ransomware. Users have the ability to effortlessly save, sync, and access the most updated versions of their files across multiple devices, benefiting from unlimited versioning capabilities that enhance flexibility. Furthermore, it facilitates instant file restoration from cloud storage, desktops, and mobile devices, which is essential for quick recovery. To counteract the threat of ransomware attacks, it incorporates advanced anti-malware and antivirus solutions powered by Bitdefender, ensuring robust security. Users can easily protect against compromised passwords through two-factor authentication, which is conveniently managed via the HostPilot control panel. Both newcomers and existing SecuriSync users have access to Bitdefender's top-tier security features without any extra charges. The added layer of security from two-factor authentication enhances protection for administrators, while the ongoing real-time backups ensure that all files, including those from PCs and mobile devices, remain secure. With the capability to restore files to any prior version with a single click, users can confidently safeguard their data, making it readily recoverable from ransomware threats, thereby significantly enhancing their peace of mind and overall data security. Additionally, this feature-rich solution empowers users to focus on their work without the constant worry of potential data loss.

TeraBox Technology specializes in delivering cloud computing solutions and software, including services like online data backup and cloud server management. Tailored for individuals and small enterprises, our offerings are both affordable and scalable, allowing for resource enhancements and equipment upgrades thanks to their robust availability. We pride ourselves on providing high reliability, substantial bandwidth, and a fortified security framework. Our dedicated IT team stands ready to assist clients around the clock, ensuring that support is always just a call away. By employing agile methodologies, we create comprehensive summaries that facilitate high-level insights. Fostering collaboration is essential to enhancing our value proposition. Our iterative approach to corporate strategy promotes innovative thinking and teamwork. By embracing workplace diversity and empowering our staff, we expand our comprehensive understanding of disruptive innovations. With extensive storage capabilities of up to 1024 GB and support for multi-device collaboration, we also offer solutions for network backup and file synchronization, ensuring optimal space utilization, speed, security, and stability in your operations. Ultimately, our commitment to excellence and innovation sets us apart in the cloud technology landscape.

NAKIVO Backup & Replication delivers a highly regarded, efficient, and cost-effective solution for backup, ransomware recovery, and disaster recovery, applicable across virtual, physical, and cloud settings. This solution excels in performance, dependability, and management, catering to the needs of small and medium-sized businesses, large enterprises, and managed service providers alike. Its versatility ensures that various types of organizations can effectively safeguard their data and maintain operational continuity.

FileCloud is a hyper-secure EFSS (enterprise file sync and share) platform providing industry leading compliance, data governance, data leak protection, data retention and digital rights management capabilities. FileCloud is a leader in content governance and collaboration for unstructured data, trusted and used worldwide across Global 1000 enterprises, educational institutions, government organizations, and service providers. Granular control of content sharing is fully integrated into the stack through comprehensive audit logs and access permissions, and the Compliance Center helps with regulations like GDPR, HIPAA, and NIST 800-171 (among others). FileCloud also provides Zero Trust File Sharing® an industry first innovation that allows users to share sensitive data via an encrypted zip file that cannot be accessed by unauthorized users, even in the event of a data breach. FileCloud helps customers solve complex challenges in enterprise file sharing, privacy, compliance automation and governance across public, private, and hybrid cloud environments. In addition to its enterprise file sharing solution, FileCloud’s product portfolio also includes Signority (acquired in May 2024), a Canadian-based e-signature and document workflow platform.

Azure NetApp Files (ANF) is an advanced file storage solution meticulously crafted for Microsoft Azure, aimed at fulfilling the requirements of essential business applications. It streamlines the migration and management of intricate, performance-driven, and latency-sensitive applications without necessitating any alterations to the code, establishing itself as a prime option for both enterprise line-of-business and storage professionals. ANF acts as a critical shared file storage service across various scenarios, including the transition of POSIX-compliant Linux and Windows applications, SAP HANA, databases, high-performance computing environments, and enterprise web solutions. By supporting multiple protocols, ANF enables a smooth "lift and shift" process for both Linux and Windows applications into the Azure ecosystem. The service presents a range of performance tiers tailored to meet the distinct needs of various workloads, ensuring peak performance at all times. Moreover, its seamless integration with the Azure platform provides users with a secure and efficient experience, removing the necessity for additional training or management challenges. ANF is further distinguished by prestigious certifications, such as SAP HANA, GDPR, and HIPAA, allowing organizations to migrate their most rigorous workloads to Azure with assurance. In addition, the service’s comprehensive features not only enhance cloud storage capabilities but also empower enterprises to leverage advanced technology solutions effectively. As businesses continue to evolve, ANF stands out as a reliable partner in navigating the complexities of cloud storage.

RaiDrive is a user-friendly and effective software application that simplifies the management of cloud storage accounts. It enables connections to over 30 different cloud services, such as Google Drive, OneDrive, Dropbox, AWS, and FTP, as well as WebDAV and NAS, functioning similarly to a USB drive. This functionality allows users to access and manage their files as if they were stored locally on their devices. With features like secure access, multi-user capabilities, and the ability to create network drives, RaiDrive serves as a comprehensive tool for enhancing cloud storage management. Furthermore, its reliability and versatility make it an ideal choice for both individual users and teams looking to improve collaboration and efficiency. Ultimately, RaiDrive stands out as a valuable asset for anyone seeking to optimize their cloud storage experience.

Folderit helps organizations control documents without the complexity of traditional enterprise systems. The platform brings together OCR-powered search, metadata, version control, audit trails, file previews, reminders, and secure access, plus workflows for approvals, acknowledgements, reviews, and e-signing. For more advanced needs, Folderit supports retention automation, document numbering, API integrations, eForms, SSO, and granular access management. With cloud, Single-Tenant, and On-Premises deployment options, Folderit is designed for companies that want secure, scalable document management software that stays practical and easy to use.

Your documents are organized in the cloud in accordance with your preferences. Aurora Files is an open-source file storage option designed specifically for small teams and individual users. By choosing to self-host it on your own systems, you gain full control over your information. Sharing files and folders with your team is a breeze, and the platform supports integration with both local and remote S3-compatible storage options as a backend. Accessing your files can be done seamlessly through any WebDAV client, including Windows Explorer. You also have the opportunity to personalize the look of Aurora Files with your selected colors, styles, and images, which extends to mobile applications as well. Whether using an iOS or Android device, accessing your files is easy and convenient. The platform facilitates two-way synchronization between your local folders and the cloud, making it suitable for both personal and corporate storage solutions. You can share access to files and folders via a simple link, which enhances collaborative efforts. Developers will appreciate the platform's ability to simplify code customization, integration with other systems, and the development and upkeep of plugins. Moreover, Aurora Files features a Paranoid Encryption module, which implements strong AES-256 encryption directly in the browser, ensuring that your sensitive data is well-protected while you work. This security measure adds an additional layer of peace of mind, allowing users to focus on their tasks without worrying about data breaches.

PhoenixNAP, a prominent global provider of Infrastructure as a Service (IaaS), assists organizations across various scales in fulfilling their IT demands for performance, security, and scalability. With services accessible from key edge locations across the U.S., Europe, Asia-Pacific, and Latin America, phoenixNAP ensures that businesses can effectively expand into their desired regions. Their offerings include colocation, Hardware as a Service (HaaS), private and hybrid cloud solutions, backup services, disaster recovery, and security, all presented on an operating expense-friendly basis that enhances flexibility and minimizes costs. Built on cutting-edge technologies, their solutions offer robust redundancy, enhanced security, and superior connectivity. Organizations from diverse sectors and sizes can tap into phoenixNAP's infrastructure to adapt to their changing IT needs at any point in their growth journey, ensuring they remain competitive in the ever-evolving digital landscape. Additionally, the company’s commitment to innovation ensures that clients benefit from the latest advancements in technology.

DoubleClue, created by HWS Group in Bavaria, acts as a comprehensive Identity and Access Management solution aimed at managing identities, permissions, and access rights. It enhances corporate networks' defenses against cyber threats targeting digital identities, often referred to as the "human factor," by utilizing sophisticated multi-factor authentication techniques. The platform also features an extensive password management system along with secure cloud storage for handling sensitive data. With a strong emphasis on identity protection, password safety, and cloud security, all backed by adaptive multi-factor authentication (MFA), DoubleClue can be implemented either on-premises or within a cloud environment. This cutting-edge solution tackles a vital aspect of business security that traditional firewalls and antivirus programs frequently neglect—the human element, which is often the weakest link in IT security. By leveraging a comprehensive all-in-one platform, organizations can secure all digital accesses, applications, passwords, and confidential information effectively. In the modern digital workspace, where employees demand greater flexibility, DoubleClue enables them to work from any location and across multiple devices without compromising their IT security. Moreover, this level of adaptability is essential as remote work continues to gain traction in various industries. Ultimately, DoubleClue not only safeguards corporate assets but also fosters a secure environment for a dynamic workforce.

Access your PDF and Microsoft Office documents right from the web, along with native formats for Animation Desk, NoteLedge, and Write-on Video. You can conveniently request files from others through a request link and share larger files with your team by utilizing a shared folder. To maintain security, users can implement password protection and set access permissions for their files. The files saved on Kdan Cloud benefit from TSL/SSL and RES encryption, ensuring their safety. With just a few taps in applications such as PDF Reader, Animation Desk, NoteLedge, Markup, Write-on Video, and Pocket Scanner, backing up your projects and files becomes a breeze. Kdan Cloud enhances your experience not only with Creativity 365 and Document 365 suites but also acts as a standalone cloud solution. You can effectively organize and manage both personal and collaborative files, having access to them anytime and anywhere via Kdan Cloud. By opting for a Creativity 365 subscription, you unlock unlimited access to premium features across multiple devices, including smartphones, tablets, and desktops, along with 1TB of Kdan Cloud storage and credits for file conversion. This extensive offering not only boosts productivity but also guarantees that your data is secure and readily available, allowing you to focus on your creative endeavors without interruptions. Ultimately, Kdan Cloud is designed to meet the diverse needs of modern users in their creative processes.

Nutanix Files Storage provides a simple, adaptable, and cutting-edge scale-out file storage solution designed for the modern data-driven landscape. With a single click, users can effortlessly execute updates and manage all storage operations through a centralized interface. This solution supports flexible scaling options, whether scaling up or out, utilizing your choice of hardware while mimicking a cloud consumption model. You can gain valuable insights into data utilization, monitor access patterns, and take advantage of automated management for improved oversight. An IDC study highlights that Nutanix Files Storage reduces operational overhead by 66% when compared to conventional siloed storage systems, resulting in an impressive 414% return on investment and a mere seven-month payback period. Engineered to handle billions of files and support tens of thousands of simultaneous user sessions, Nutanix Files Storage is well-suited for expanding environments; scaling your cluster is as easy as a single click, whether you’re upgrading compute and memory for file server VMs or incorporating additional file server VMs. This all-encompassing platform also enables the use of identical resources for both object and block storage, making it a highly adaptable option for various storage requirements. Consequently, users benefit from enhanced efficiency and flexibility in their data management practices, ensuring that their storage solutions can evolve alongside their organizational needs.

SOLIXCloud CDP offers a cloud-oriented data management solution designed specifically for modern businesses that prioritize data. By leveraging open-source and cloud-native technologies, it allows companies to manage and analyze their structured, semi-structured, and unstructured data effectively, promoting advanced analytics, compliance with regulations, operational efficiency, and strong data security measures. The platform features essential tools such as Solix Connect for streamlined data ingestion, along with Solix Data Governance, Solix Metadata Management, and Solix Search, all of which create a comprehensive framework for cloud data management. This framework not only aids in the development and execution of data-centric applications like SQL data warehouses and machine learning models but also tackles the growing complexities tied to data management regulations, retention policies, and consumer privacy issues. By doing so, SOLIXCloud CDP equips organizations with the necessary tools to navigate the dynamic realm of data management confidently and effectively. Ultimately, businesses can harness their data better, ensuring they remain competitive in an increasingly data-driven world.

KeepItSafe provides a comprehensive suite of Data Protection-as-a-Service solutions designed to guarantee data availability through methods like cloud backup, disaster recovery, mobile endpoint management, and support for various SaaS applications. With a robust network of over 20 data centers globally, KeepItSafe complies with rigorous standards including SOC 2, HIPAA, and PCI, while offering customized managed services and continuous support. Renowned for its security and scalability, the company’s cloud backup and on-demand recovery services include Backup-as-a-Service (BaaS), which features thorough monitoring and 24/7 support for users. Serving as a complete disaster recovery and online backup provider, KeepItSafe presents fully managed Disaster Recovery as a Service (DRaaS) that protects and replicates data across multiple secure off-site servers, ensuring swift failover during critical incidents. Furthermore, their advanced endpoint backup solution enhances file sharing, teamwork, and data-loss prevention, all seamlessly integrated into a single platform. KeepItSafe Mobile equips IT managers with essential tools to protect their organizations against unforeseen data crises, significantly contributing to effective data management. In a landscape where data security is paramount, KeepItSafe stands out as a trusted ally for businesses aiming to fortify their data infrastructure.