Microsoft OneDrive - Secure access, sharing & file storage
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
Dropbox - Online Sync and File Sharing
Google Drive - Access and sync your files anywhere
Azure Storage Explorer - Easily manage your Azure storage accounts in the cloud, from Windows, macOS, or Linux, using Azure Storage Explorer.
ShareFile - Secure file sharing and sync