nginx - A high performance free open source web server powering busiest sites on the Internet.
Stork.ai - AI-Based Collaboration for Hybrid Teams. Rich media messaging, advanced video and voice conferencing, auto-transcribing and screen sharing. Serendipitous meetings at the water-cooler with your human and AI teammates.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Tatsu - Standup meetings for remote teams.
lighttpd - A secure, fast, compliant, and very flexible web-server that has been optimized for high-performance environments
openmeet - Account free video conferencing with a rooms component that lets you use VC within a physical meeting room. The server can also be hosted in your own cloud for extra privacy/security.