as part of its second-round Commercial Crew Development (CCDev) program, NASA issued a US$75 million contract for SpaceX to develop an integrated launch escape system for Dragon in preparation for human-rating it as a crew transport vehicle to the ISS. NASA awarded SpaceX a fixed-price Space Act Agreement (SAA) to produce a detailed design of the crew transportation system in August 2012. In early 2012, approximately two-thirds of SpaceX stock was owned by Musk and his 70 million shares were then estimated to be worth US$875 million on private markets, valuing SpaceX at US$1.3 billion. In May 2012, with the Dragon C2+ launch Dragon became the first commercial spacecraft to deliver cargo to the International Space Station. After the flight, the company private equity valuation nearly doubled to US$2.4 billion or US$20/share. By that time, SpaceX had operated on total funding of approximately $1 billion over its first decade of operation. Of this, private equity provided approximately $200 million, with Musk investing approximately $100 million and other investors having put in about $100 million. SpaceX's active reusability test program began in late 2012 with testing low-altitude, low-speed aspects of the landing technology. The Falcon 9 prototypes performed vertical takeoffs and landings (VTOL). High-velocity, high-altitude tests of the booster atmospheric return technology began in late 2013. 2013–2015: Commercial launches and rapid growth SpaceX launched the first commercial mission for a private customer in 2013. In 2014, SpaceX won nine contracts out of the 20 that were openly competed worldwide. That year Arianespace requested that European governments provide additional subsidies to face the competition from SpaceX. Beginning in 2014, SpaceX capabilities and pricing also began to affect the market for launch of U.S. military payloads, which for nearly a decade had been dominated by the large U.S. launch provider United Launch Alliance (ULA). The monopoly had allowed launch costs by the U.S. provider to rise to over US$400 million over the years. In September 2014, NASA awarded SpaceX the Commercial Crew Transportation Capability (CCtCap) contract to finalize the development of the Crew Transportation System. The contract included several technical and certification milestones, an uncrewed flight test, a crewed flight test, and six operational missions after certification. In January 2015, SpaceX raised US$1 billion in funding from Google and Fidelity, in exchange for 8.33% of the company, establishing the company valuation at approximately US$12 billion. The same month SpaceX announced the development of