SES, which now has 55 satellites in orbit, operates the world's second largest fleet.
PHOTOS: Dragon's Bounty: SpaceX Mission Complete
The company's previous launches were primarily on Russia's Proton and Europe's Ariane rockets, which charge significantly more than the approximate $55 million the company paid SpaceX.
"If you look toward Ariane, if you look toward Proton, I think they're shaking in their shoes. I really do, because if this is a success, the whole industry is going to be turned upside-down," Halliwell said.
In addition to 10 more cargo runs to the space station for NASA, SpaceX has a backlog of about 40 other satellites awaiting rides to orbit.
"We appreciate SES's early confidence in SpaceX and look forward to launching additional SES satellites in the years to come," Musk said in a statement after launch.
PHOTOS: Berthing a Dragon: An Astronaut's Spectacular View
SpaceX also intends to compete for the lucrative business of launching the U.S. military's communications and spy satellites, a service now exclusively provided by a partnership of aerospace giants Lockheed Martin and Boeing.