Graphistry Inc, spun out of the University of California Berkeley, develops technology for browser-based tools, enabling visually analysis of large event graphs, with a focus on piecing together SIEM alerts. The company's technology uses GPUs and custom language, algorithm, and cloud systems to enable interacting with 2-4 magnitudes more events. The firm's GPU cloud technology is a rethinking of the firm's initial work on the first parallel web browser and GPU visual analytics language to increase scale and portability.