Syncthing - Syncthing replaces proprietary sync and cloud services with something open, trustworthy and...
Dropbox - Online Sync and File Sharing
Nextcloud - With Nextcloud enterprises host their own secure cloud solution for storage, collaboration & communication from any device, anywhere.
Mega - Secure File Storage and collaboration
Filebase - Filebase is a software that provides file storage management by offering the unique approach to object storage, compatible with SIA, STORJ, and Skynet, having decentralized storage networks with underlying storage layers.
ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.