Top SpaceTech Capital Raises and Investors in the U.S. – July 1st – 31st, 2026
Several interesting transactions closed in the SpaceTech sector over the past month. If you would like more info on these deals or would like to discuss the capital raising market for your company, please contact me.
Merger/Acquisition
- Astrobotic, a space robotics technology developer that delivers payloads and robotic systems to the lunar surface, acquired by Voyager for $300 million.
Later Stage VC
- Venus Aerospace, a hypersonic propulsion systems developer that creates high-speed propulsion technology for aerospace, defense, and aviation applications, raised $91 million through a combination of Debt and Series B-1 and Series B-2 venture funding in a deal led by Mercury Fund.
- Antares Nuclear, a transportable microreactor manufacturer that develops resilient power systems for critical infrastructure, defense, and space applications, raised $470 million of Series C venture funding through a combination of debt and equity in a deal led by Caffeinated Capital and Paradigm.
- Array Labs, a remote sensing technology developer that uses satellite clusters to create high-resolution three-dimensional models of Earth, raised $21 million of venture funding in a deal led by Mitsubishi Electric.
- K2 Space, an aerospace hardware developer that builds satellite buses for defense, commercial, and scientific space operators, raised $500 million of Series D venture funding in a deal led by Kleiner Perkins and ICONIQ Capital.
Early Stage VC
- NZT Group, a polymer and composite materials developer that creates engineered materials and systems for demanding industrial applications, raised venture funding from Intbox Ventures.
- Senra Systems, a wire harness manufacturing platform that uses software to transform assembly tasks into high-throughput production processes, raised $65 million of Series B venture funding in a deal led by Interlagos Capital and Lowercarbon Capital.
Seed Round
- Azora, an optical ground station infrastructure provider that enables secure and scalable spacecraft data transmission using laser communication technology, raised $7.67 million through a combination of Debt, Seed and Seed-1 funding from Wave Function Ventures.
- Extellis, a synthetic aperture radar satellite developer that provides Earth observation imagery for infrastructure monitoring and tactical decision-making, raised $6.8 million of seed funding in a deal led by Oval Park Capital.
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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.
