Investing in MJOLNIR SPACEWORKS

by Taku Uchimaru

Z Venture Capital (ZVC) has invested in the Series B funding round of MJOLNIR SPACEWORKS (MSW), a company focused on the mass production of hybrid rocket engines and high-performance tanks for space applications.

As commercial space activity continues to accelerate, demand for launching small satellites is surging worldwide. Despite this growth, launch capacity remains constrained, creating a significant gap between demand and supply. Today, many satellite operators face the challenge of wanting to launch but being unable to secure launch opportunities. At the same time, there are still very few companies—either in Japan or globally—that can manufacture rocket engines safely, affordably, and at scale.

MSW, a deep-tech startup spun out of Hokkaido University, has developed its proprietary CAMUI hybrid rocket engine technology.

Using a hybrid propulsion system that burns plastic fuel, the engine offers three key advantages: enhanced safety due to its low explosion risk, a simple design with fewer components, and the ability to be mass-produced at low cost. The company has already successfully conducted one of the largest rocket engine combustion tests in Japan.

In addition, MSW has developed a proprietary seamless, weld-free tank technology, enabling consistent quality while reducing production lead times and costs.

As private-sector space development advances, expanding the supply of rockets capable of carrying satellites into orbit will be critical to supporting the continued growth of the space industry. We believe MSW is uniquely positioned to address this bottleneck through its ability to manufacture rocket engines and tanks safely, efficiently, and at scale.

ZVC is proud to support MSW as it pursues its ambitious mission of making Japan a global leader in rocket manufacturing once again through the mass production of rockets.



About MJOLNIR SPACEWORKS 

https://www.mjolnir-sw.com