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HawkEye 360 Closes Strategic Acquisition and Secures Series E Preferred and Debt

HawkEye 360, the global leader in signals intelligence data and analytics, today announced the completion of its acquisition of Innovative Signal Analysis (ISA), supported by equity and debt financings totaling $150 million.

articleHercules Capital, Inc.December 18, 20253/company/hercules-capital-inc/news/hawkeye-360-closes-strategic-acquisition-and-secures-series-e-preferred-and-debt
HawkEye 360 Closes Strategic Acquisition and Secures Series E Preferred and Debt

About this update from Hercules Capital, Inc.

[{"type":"text","content":"HERNDON, Va., Dec. 18, 2025 /PRNewswire/ -- HawkEye 360, the global leader in signals intelligence data and analytics, today announced the completion of its acquisition of Innovative Signal Analysis (ISA), supported by equity and debt financings totaling $150 million.","length":268,"tagName":"p"},{"type":"image","alt":"HawkEye 360 Logo - Jul2025 (PRNewsfoto/HawkEye 360 Inc.)","displaySize":"","headline":null,"caption":"HawkEye 360 Logo - Jul2025 (PRNewsfoto/HawkEye 360 Inc.)","className":"","disableSlideshowImg":false,"size":{"original":{"width":400,"height":93,"url":"https://media.zenfs.com/en/prnewswire.com/3c27d0925f7be8c5c82f23609ba065c4"},"resized":{"url":"https://s.yimg.com/ny/api/res/1.2/LKs7QC7xPZwJjQSfiuLsVg--/YXBwaWQ9aGlnaGxhbmRlcjt3PTcwNTtoPTE2NDtjZj13ZWJw/https://media.zenfs.com/en/prnewswire.com/3c27d0925f7be8c5c82f23609ba065c4","width":400,"height":93}},"href":"https://mma.prnewswire.com/media/2774854/HawkEye_360_Corp_Logo.html","hrefExternal":true,"rel":"nofollow"},{"type":"text","content":"The acquisition of ISA significantly expands HawkEye 360's signal-processing capabilities, bringing advanced algorithms, mission-ready systems, and deep engineering expertise that enhance the company's ability to detect, characterize, and analyze complex RF activity. ISA's technology and team strengthen HawkEye 360's end-to-end platform by accelerating data processing, improving performance in challenging RF environments, and supporting more scalable delivery of insights to customers.","length":505,"tagName":"p"},{"type":"text","content":"This Series E preferred equity financing round was co-led by existing investor NightDragon and Center15 Capital, with additional secured and mezzanine debt financing from Silicon Valley Bank, a division of First Citizens Bank, Pinegrove Venture Partners, and Hercules Capital, Inc. The funding supports HawkEye 360's acquisition of ISA and strengthens the company's financial position, reinforcing the company's disciplined approach to growth and long-term financial management.","length":490,"tagName":"p"},{"type":"text","content":""This transaction marks an important step forward for HawkEye 360 as we continue to scale our platform and integrate highly complementary technical capabilities," said John Serafini, CEO of HawkEye 360. "The acquisition of ISA ...

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ISAHawkEye 360signals intelligence