Mux

Mux

Mux was founded in 2015 by Jon Dahl, Steve Heffernan, and Matt McClure, a team that previously created Video.js, an open-source HTML5 video player widely adopted across the web. Dahl serves as CEO, Heffernan as CTO, and McClure as COO, per public record. The company's origin traces to a need for reliable, accessible video infrastructure for developers. The firm delivers two primary products: Mux Data, a video analytics platform tracking stream quality metrics like rebuffering and startup time, and Mux Video, an API-based encoding and streaming service. Combined, they serve a client base including The New York Times, Patreon, and VSCO. Mux operates across infrastructure and developer tool segments, targeting a global market — with notable customers in North America, Europe, and Asia. Mux has raised approximately $170M in venture funding across five rounds, per public filings and Crunchbase data. The most recent round, a $105M Series D in March 2023, was led by Cobalt with participation from Accel and Andreessen Horowitz. The company maintains its headquarters in San Francisco, California. A structural differentiator is its API-first model: instead of selling video as a managed service, Mux embeds directly into developer workflows, enabling usage-based pricing and granular control. This positions Mux as a platform layer, distinct from traditional streaming services or content delivery networks.