South Korean aerospace startup Unastella has successfully closed a $24 million Series B funding round, according to TechCrunch. This latest infusion of capital brings the four-year-old company’s total funding to $44 million, providing the resources necessary to scale its small satellite launch operations.
The startup, which gained industry attention by launching its Una Express-I rocket from South Korean soil in May 2025, is currently focused on accelerating its commercial flight schedule. Founder and CEO Jae Park, who previously contributed to the development of combustion systems for South Korea's indigenous Nuri rocket, is leading the company’s efforts to build proprietary launch vehicles and engines.
Unastella’s technical strategy centers on a kerosene and liquid oxygen propulsion system. While this configuration mirrors the architecture used by SpaceX, Unastella has opted to replace traditional turbo pumps with electric motor pumps. The company acknowledges that this design choice results in increased weight and reduced payload capacity, but maintains that the trade-off is a strategic necessity for rapid market entry.
“We’re not an R&D group trying to build the most impressive rocket,” Park stated regarding the firm's philosophy. “We’re a commercial launch company trying to get to market fast.”
To maintain strict control over its development timeline, Unastella manages its design, manufacturing, ground operations, and flight data analysis entirely in-house. The May 2025 launch of the Una Express-I served as a critical end-to-end validation of these integrated systems. While the company has expressed long-term interest in crewed suborbital spaceflight, Park emphasized that the immediate priority remains validating the business model through consistent orbital launches.
As the global space industry faces intensifying competition from emerging sectors in Japan, India, and Australia, Unastella is positioning itself to challenge the traditional dominance of the U.S. and Chinese aerospace markets. By prioritizing speed over maximum technical complexity, the firm aims to carve out a sustainable niche in the burgeoning small satellite launch sector.
