Top 10 SpaceTech Capital Raises and Investors in the U.S. – April 1st – May 31st, 2026
Several interesting transactions closed in the SpaceTech sector over the past months. If you would like more info on these deals or would like to discuss the capital raising market for your company, please contact me.
PIPE
- Momentus Inc, a U.S.-based commercial space company that provides satellites, satellite buses, and in-space infrastructure services, received $5 million of development capital.
- Sidus Space Inc, a space and defense technology company that delivers satellite manufacturing, technology integration, AI products and services, space and defense hardware components, and space-based data solutions, received $100 million of development capital.
Merger/Acquisition
- Exquadrum, aerospace propulsion and defense systems that support rocket propulsion, energetics, and aerospace testing applications, was acquired by Mach Industries for $50 million.
- Motiv Space Systems, space robotics and motion control systems based in Pasadena, California, was acquired by Rocket Lab for $60 million.
Later Stage VC
- Hermeus, an aerospace and defense technology company that develops hypersonic aircraft quickly and cost-effectively, raised $350 million of Series C venture funding in a deal led by Khosla Ventures.
- Lunar Outpost, space robotics that extend human presence on the lunar surface while creating positive impacts on Earth, raised $30 million through a combination of Series B-1 and Series B-2 venture funding in a deal led by Industrious Ventures.
Early Stage VC
- Starlab Space, a commercial space station company that serves space agencies, researchers, and companies, raised Series A venture funding from Mitsubishi, Mercury Fund and 1789 Capital.
- Aspect Aerospace, single-board orbital systems that deliver scalable satellite constellations at a lower cost than traditional CubeSats, raised $500,000 of pre-seed funding from SOSV and HAX.
Seed Round
- AstronetX, space-based observational and data services that serve government agencies, the space science community, and the private sector, raised $1.40 million of seed funding in the form of convertible debt from Baruch Future Ventures and others.
- Codective, autonomous UAV navigation and target guidance systems that enable real-time mission decision-making and precision engagement in GNSS-denied environments, raised $200,000 of seed funding from Israel Aerospace Industries.
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John Silvestri
Managing Director
Finance, strategy and capital markets executive. Originated structured and executed, as principal, agent and underwriter, over $4 billion of public and private, structured and project finance transactions. Industry expertise includes Energy and Power, Technology/Fintech/Digital, Sponsor, Transportation and Infrastructure, Consumer, Industrials and Agriculture, Banking, and Specialty Finance. Companies ranging from small to large, leveraged, high grade, venture, SPV’s and project finance. Transaction expertise across capital structure includes public and private bonds, equity, structured and direct investments, and unitranche. Leveraged finance includes senior/sub, bridge, acquisition, mezzanine, equity co-investment, and re-capitalizations. Previously, founder of an advisory and a direct investment business, Managing Director and Co-head of Investment Banking at Altamar Capital, and Director and Head of High Yield Capital Markets in New York for Barclays Capital. BS in Management from SUNY Buffalo. MBA from Fordham Gabelli Business School. FINRA Series 7 and 63 licenses.
- Email: jsilvestri@castleplacement.com
- (C) (203) 803-9861
 John SilvestriManaging Director |
Please contact me if you have any questions or would like to discuss your capital raise:
Email: jsilvestri@castleplacement.com
(C) (203) 803-9861
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Sources: Information on this page was derived from a variety of sources including Bloomberg, Company Websites, Crunchbase, PitchBook and other news outlets. Castle Placement® does not warrant or guarantee this information, nor makes any representations as to the accuracy of the information. For more Risks, see CPGO Risks and Disclaimers.
