SFTPGo - Fully featured and highly configurable SFTP server with optional HTTP/S, FTP/S and WebDAV support - S3, Google Cloud Storage, Azure Blob
CompleteFTP by EnterpriseDT - CompleteFTP is a secure FTPS and SFTP server for Windows.
FileZilla Server - Download FileZilla Server 0.9.60.2 for Windows
Progress WS_FTP - Progress WS_FTP is a robust FTP server solution that enables you to keep an eye on transfer details and security, accelerate file transfers, and protect your data with advanced settings and controls.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.
MFT Gateway - B2B/EDI Managed file transfer service-backed by the scalability of the Amazon Web Services (AWS) serverless platform.