Mark Williamson is the Co-Founder and CEO of The ROSTR Group, a music technology and media company based in Los Angeles, California.

The group's flagship product, ROSTR, has become a must-have resource for organizing the music industry, serving tens of thousands of music professionals. Building on this success, The ROSTR Group has expanded its offerings to include several other products.

Jobs by ROSTR, a job site, attracted a quarter of a million users in its first year. Stack by ROSTR is the largest online directory of music industry resources.

The group also launched ROSTR Insider, a dedicated news site for the industry. Prior to ROSTR, Mark spent almost a decade leading Spotify's artist relations teams. He currently lives in Los Angeles with his wife and two sons.