The Best Business Cloud Storage and File Sharing Providers for 2025

PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing.

Cloud services have all but replaced physical media for securely storing company data and sharing files between coworkers, clients, and partners. The trend has been accelerated by the distributed nature of modern work, with many staffers working from home. It isn't practical to expect a small business's IT staff to maintain an entire workforce's data on local storage when so much of it traverses the internet. Cloud storage and file-sharing providers offer robust data centers, advanced data protection, and security measures. It's a lot to take in, but we can point you in the right direction. We've reviewed the category for more than three years, after all. Egnye and Microsoft OneDrive, our Editors' Choice winners, are terrific starting points. However, you should check out our other highlighted picks, too.

What Does Business-Grade File Sharing Do?

The positive side of the ever-growing cloud storage feature set is that smart organizations can find new and creative ways to use the services. Cloud storage means you can tweak a service to act as a lightweight document management system or even a workflow manager that controls how your data flows through a user chain. Alternatively, you can focus on collaboration and file-sharing features so employees can edit the same files in a team space while protecting their work with versioning.

This customization is more important now than ever. Remote work is here, but employees moving away from a central office work model can drastically alter how work gets done. Storing and retrieving your company's data needs to adapt; no other storage method can handle those changes as easily as a cloud service.

The rub is that effective customization requires planning, especially when that customization involves important workflows. Just because a storage vendor has a long list of features doesn't mean you'll automatically take advantage of them all. Knowing what features will work best and in what combination is planning that only you, your IT staff, and your front-line business managers can do.

Focus your planning efforts on only key workflows at first and start small. Attention to core abilities, especially reliable accessibility, effective backups, secure storage, and user and group management. Once you know how you want all that to work while your workers are so widely distributed, you can expand into automated workflow, collaboration, and third-party app integrations. Sometimes core app integrations should be considered earlier, for example, if your business has standardized on a particular productivity platform. (i.e., Google Workspace shops will choose Google Drive while Microsoft 365 outfits will likely select Microsoft OneDrive).

How Do You Integrate Third-Party Cloud Storage Tools?

If you don't have an obvious integration target like Google Workspace, the cloud has made it easier for different vendors to talk to each other using open standards. These days, you can mix and match cloud storage solutions with a long list of current productivity and document management systems. If you need custom coding, most vendors offer REST APIs so you can trade data and call up functions between different app services. IFTTT or Zapier will let you build cross-app automation with a fairly low learning curve if you need better automation.

Cloud companies also see the value of interoperability, though they primarily address it in high-value customer categories and verticals. For example, Microsoft and Salesforce have huge partner ecosystems with large catalogs of targeted service offerings. A partner takes the company's core products, like Microsoft 365, and builds integrations and workflow features using that product and one or more third-party cloud services. Those solutions are built to attract specific kinds of businesses or verticals.

So, Vendor X might build an end-to-end lease management solution for big-city property management companies. That solution might use a database of property listings linked to a Salesforce CRM. That link would match properties to potential renters. From there, it could automatically match a renter type and a property type to the right lease template stored in another database or a contract or document management system. Those leases are filled out using editable PDF documents that get dropped into an approval workflow in the Salesforce framework (or some other productivity environment, such as Google Workspace or Microsoft 365).

Of course, the more third-party services a solution like that uses, the higher the per-user-per-month price tag. But the fact that you can put such a customized solution together using just a plug-in cloud service architecture is attractive since it lets you easily swap service vendors in and out.

So, if you're looking to use a cloud storage service in a particular way, certainly do the planning necessary to understand exactly what kinds of custom tweaks and workflows you'll need. But once that's done, don't assume you'll need to build everything yourself. Instead, check out the integration and value-added app marketplaces available from your key app providers and those offered by the storage service. Someone may have already built the perfect end-to-end solution for you, and that's cheaper and easier than rolling your own.

How Much File Storage Do You Need?

One reason behind the trend in new, value-add features is that storage capacity is largely a moot issue in the cloud. Many buyers focus mainly on a vendor's storage capacity and how much they'll get for the price. That's still something to consider, but overall, storage space is now more affordable than ever with prices trending slowly downward. Regarding capacity, most cloud storage providers offer a generous amount of storage. Multiple terabytes (TB) are commonplace, and no longer a big differentiator between services (especially now that adding storage capacity is easy and cheap).

If you suddenly need an extra 100GB of space for a fast project, most cloud storage vendors make adding that capacity a simple matter of clicking option buttons. That'll not only give you the new space, but also automatically up your subscription charge. Even better, once the project is done, you can ratchet both capacity and price back down again just as easily. This elastic capacity is easy for a cloud storage vendor, and almost impossible for an on-premises resource.

Of course, all this freedom makes things complicated, especially in a larger company. If storage capacity and subscription rates change because department managers constantly alter their requirements, that can play havoc with a long-term budget. Be sure to set up controls around who gets to adjust capacity (your IT department is key here), how new capacities should be reported, what the minimal security and permission requirements are, which backup policies need to apply, and how often this can happen in a given time slice (quarterly, annually, etc.).

Where Are Cloud Data Centers Located?

All this paints a rosy picture when designing your customized and highly distributed storage service. Still, several devils lurk in the details. A big one is finding out exactly where your data lives. Some providers have their own data centers, while others outsource their storage to another third-party cloud, often Amazon Web Services (AWS) or a similar Infrastructure-as-a-Service (IaaS) player.

That's an important point to consider: Are you signing a service-level agreement (SLA) with a cloud provider directly responsible for the infrastructure or is the provider beholden to another party? Investigate that firm and examine its track record if it's a third party. Then, look at the levels of service it offers. All the major players have some uptime guarantee, but it's worth noting that location is an important factor, too.

How many data centers does the third party have? How many are local or in a different location? If you're a US company, purchasing a storage resource with servers only in Europe makes little sense.

Finally, is your data distributed among them for better reliability? You should be able to determine those answers easily from a target vendor and designate where you want your data stored so you can optimize your storage for access speed and redundancy.

How your employees access their files is critical and can widely vary among vendors. Data-sharing functionality should involve a sync client or some other desktop-based software that ensures that files in the cloud are synced with local replicas. However, some vendors can have other points of access. For example, all cloud storage companies offer a web client, but some might also make this the primary client. It's something you need to test before committing.

Mobile devices are also an issue. Many newly distributed employees are trying to use personal devices for work, and many are mobile. Does your storage vendor have mobile clients? If so, you need to determine which platforms are supported and test how those clients work. Syncing, for example, needs to function differently for mobile versus desktop since device CPU and storage resources are so different. Security and user access also work differently, especially if user credentials incorporate device types.

Another thing to remember is that you won't always be accessing your data directly through the storage vendor. For instance, Microsoft OneDrive for Business can sync with Microsoft Teams, its team messaging platform, and the team sites that are part of its popular SharePoint Online collaboration platform. So your users might work on files in those apps and then see them automatically saved to an associated cloud storage service, in this case, OneDrive.

By comparison, Box (for Business) offers a fully functional web client with drag-and-drop support. Shared data can be stored in folders originated by individuals, or in team folders created and controlled by team leads or administrators. But it all happens in a browser window. Making it happen inside another app will take more work unless Box pre-builds the integration for you.

For most any real workflow, you'll need some version of team folders, so how that works not just in the storage vendor's interface but also any associated third-party apps needs to be considered carefully before purchase. Working with users here to determine what they like best and how they're getting work done today can go a long way toward making your purchase decision easier.

You'll need to determine how user and group folders work, not just if the solution supports that feature. What features are supported, how they're controlled, and which third-party apps they can affect are all important points. Several solutions go above and beyond the call of duty and incorporate tight integration with popular third-party platforms, such as Microsoft 365. For example, even Microsoft's rival Google has built a Google Drive Enterprise connector to incorporate smooth collaboration functionality for Microsoft 365 users.

Is Cloud Data Storage Secure?

Keeping data safe is a more significant challenge today than ever. Features that were once considered advanced are now simply baseline capabilities. Enterprise-grade identity management, for example, is something every storage vendor should offer. That means not only matching an individual user's credentials against what files and folders they're allowed to access but also adding multi-factor authentication and single sign-on (SSO) features.

As mentioned above, secure storage means protecting data from more than prying eyes. Redundant storage layers mean you should be able to map which data centers house not just the primary copy of your data but also the first backup tier. So if you've got 500GB of data with Vendor X, you should be able to house the files your employees access the most in data centers close to where they're working. Then Vendor X should also let you sync those files with a copy located in another data center, one still operated by that vendor. So if your primary instance goes down, another data copy can be immediately available. Vendor X should also perform regular backups of both sites and store that data in a different location. Finally, you need integration with a third-party cloud backup provider so you can automatically perform another backup on your own, and store that on servers from an entirely different vendor or even your on-premises server or network-attached storage (NAS) device.

That may sound like overkill, but the beauty of a managed cloud service is that this kind of tiered architecture is relatively easy to build from the customer's standpoint and fairly automatic once it's established. As long as you test it every once in a while, you can rest assured that no matter what happens, your data will stay safe and accessible.

Encryption is another bedrock security feature. All the tested services support this to varying degrees, but should you encounter one that doesn't, just keep looking. Encryption is a must-have feature, and you need it while the data is moving between your users and the cloud (as well as when it gets to those cloud servers and stops moving). Testing these capabilities means understanding the encryption schemes being used and their impact on data retrieval performance.

Fortunately, cloud storage providers are working hard to shore up security to keep your bits safe and compete with one another, so much so that most IT professionals trust cloud security as much or more than what's available on-premises. The logic is fairly simple: Most IT professionals don't have the budget to research, deploy, and manage the advanced security capabilities cloud service vendors provide because it's key to their primary business.

Does Cloud Storage Adhere to Data Privacy Regulations?

Aside from simply keeping customer data safe, another factor that's bolstered cloud security significantly is the need to comply with important regulatory standards, such as the Health Insurance Portability and Accountability Act (HIPAA) and ISO 27001. Livedrive for Business is somewhat singular here because it's focused on European customers. It's built around the General Data Protection Regulation (GDPR), which is why its servers are located in the EU and UK.

Your legal staff generally determines regulatory requirements, which you'll need to factor into your planning. Cloud storage providers typically have several built-in features to address compliance issues.

For example, every file and folder must have an audit trail. This highlights when it was first stored on the system, how and when it's been modified, who accessed it, and what kinds of operations were performed, like copying, deleting, or moving. This is paramount for the more heavily regulated or security-conscious verticals. Due to mistakes or misconduct, losing mission-critical files can often cost hundreds of thousands or even millions of dollars in reparations or lost capital.

File retention is another common legal requirement. You need to control how long data lives on the system, its accessibility, and when it can be deleted or archived. And your storage provider should make these features easy to use. Having the right information can often mean the difference between being in or out of compliance with federal or industry-specific regulations in heavily regulated industries.

The most sophisticated cloud storage systems, such as Egnyte Enterprise, offer full data governance capabilities. These systems can automatically categorize documents and apply controls based on industry-specific or custom policies.

This means that before you purchase any cloud service, you need to sit down with your IT staff and compliance expert to understand exactly where data and apps need to be located and what features they need to support to pass the compliance regulations important to your business.

Ready to Move to the Best Cloud Storage?

Choosing a cloud storage product for your organization seems daunting when you consider the many variables. Not only do different businesses have varying cloud storage and file-sharing requirements, but they also demand security for that data. Striking a balance between usability, security, and customization must ultimately be driven by business requirements. However, understanding those requirements is a serious task that requires real work; it's not something you want to address with a snap decision.

Although some of the vendors we reviewed make it easier to migrate your data from their service, not all are so thoughtful. Once you've signed up and moved your data onto a particular service, it's generally not trivial to move it to another, so it's a good idea to do your homework thoroughly before committing to any one provider.

Planning is the key, so sit down with business leads, IT managers, and even a representative from the cloud provider if you can. It'll take some time and effort, but mapping out the features necessary for your organization's current and future needs will make finding the right solution much easier.

For more on business software, check out The Best CRM Software and The Best Email Marketing Software.

Oliver Rist contributed to this article.