The surging demand for artificial intelligence computing has pushed tech entrepreneurs to look beyond Earth, but a significant bottleneck remains: a severe shortage of reliable and affordable launch capacity. With major players like SpaceX and Blue Origin prioritizing their own satellite constellations and development goals, startups looking to establish orbital data centers are finding it increasingly difficult to secure space on existing launch vehicles. To overcome this, Cowboy Space Corporation has announced a $275 million Series B funding round, bringing its valuation to $2 billion, to develop its own proprietary rocket program.

Led by Index Ventures, the funding round also saw participation from Breakthrough Energy Ventures, Construct Capital, IVP, and SAIC. The company, founded by Robinhood co-founder Baiju Bhatt in 2024, originally began as Aetherflux with a focus on space-based solar power. However, the logistical challenges of scaling orbital AI infrastructure led the team to pivot toward building their own delivery systems. Bhatt noted that after consulting with various launch providers, it became clear that the current market could not support the specific requirements needed for high-scale, cost-effective space data centers.

Cowboy Space is adopting a unique engineering approach by integrating its data centers directly into the second stage of its rockets. By designing the vehicle specifically to carry its proprietary hardware—which includes approximately 800 GPUs per unit—the company aims to streamline the deployment process. The startup has already begun assembling a team of industry veterans, including engineers and directors formerly with Blue Origin and SpaceX, to tackle the development of their own rocket engines and launch infrastructure.

While building a rocket program from scratch is a formidable challenge, Bhatt remains optimistic about the market potential. As terrestrial options for hosting AI compute become increasingly constrained, the company believes there is a significant opportunity to provide a dedicated orbital alternative. Cowboy Space is targeting its first launch before the end of 2028, with plans to eventually transition to reusable booster technology to improve long-term unit economics.