Graphviz is open source graph visualization software used for representing structural information as diagrams of abstract graphs and networks across various technical domains.

Gephi is an open graph visualization platform for exploratory data analysis and network analysis.

yWorks is a diagramming software company for graph visualization and is used by developers and businesses.

Maltego is an all-in-one investigation platform for OSINT and cyber investigations, accelerating complex data mapping for analysts and investigators.

VisuAlgo visualizes data structures and algorithms through interactive animations, serving as a self-paced learning tool for computer science students worldwide.

Data Imaginist develops popular R packages like gganimate, patchwork, and ggraph for advanced data visualization, animation, and graph plotting.

Tom Sawyer Software is a graph technology company for data visualization and analysis.