Tetherless World Constellation (TWC) is the co-host and gold sponsor of the 20th International Semantic Web Conference, the premier international forum for the Semantic Web and Knowledge Graph Community. The event, which took place 24 - 28 October 2021, included a combination of keynote presentations from renowned experts, poster sessions, demos, lightning talks, tutorials, workshops and more. TWC co-chairs Jim Hendler and Deborah McGuinness served as panelists in a session titled “Semantic Web Vision and Revision,” alongside Tim Berners-Lee (founder of the World Wide Web) and Enrico Motta (Knowledge Media Institute). Staff and students within TWC also played an integral role at the conference by contributing to areas including program planning, poster session participation and outreach. Learn more about ISWC 2021.