One of Space Exploration Technologies Corp.’s (SpaceX) longer-serving executives is stepping down to launch a consulting practice in April.

Larry Williams, SpaceX’s Washington-based vice president for strategic relations, described his new venture, Capture 10, as a strategic business development firm focused on “creating and pursuing new billion-dollar markets, most commonly with some governmental focus.”

Williams opened SpaceX’s Washington Operations in 2004 and was responsible for the Hawthorne, Calif.-based startup’s government relations and international business development. Prior to SpaceX, Williams was ICO Global Communications senior vice president for business development and was also involved in Teledesic, Craig McCaw and Bill Gates’ venture to build an “Internet in the sky” system consisting of hundreds of satellites.