From Data Blocks to Sierra… US startup investments flood in with 18 trillion KRW in a week

The most active startup investment week of Q4 2025 has come to an end. The largest announced financing within the United States this week was a Series L funding for data and AI platform company Databricks. The company secured $12 billion (approximately 17.28 trillion KRW) in new funding, with a corporate valuation reaching $134 billion (approximately 192 trillion KRW). This investment involved institutions such as Insight Partners, Fidelity Investments, and J.P. Morgan Asset Management. Databricks stated that based on Q3 data, its annual revenue is expected to exceed $4.8 billion (approximately 6.91 trillion KRW), maintaining a 55% year-over-year growth rate.

Following closely was a funding round led by New York-based cybersecurity startup Cyera. In this round led by Blackstone Group, Cyera raised a total of $400 million (approximately 576 billion KRW), bringing its valuation to $9 billion (approximately 12.96 trillion KRW). Founded only four years ago, Cyera has now raised a total of $1.7 billion (approximately 2.45 trillion KRW).

In the energy sector, Radiant, which is focused on portable reactor technology, attracted attention with a $300 million (approximately 432 billion KRW) funding. This Series D round was led by Draper Associates and Boost VC, with the funds to be used for the construction of a small reactor manufacturing plant in Oak Ridge, Tennessee, next year.

Healthcare, fintech, and biotech companies also followed closely. Tebra, which provides electronic health record software, raised $250 million (approximately 360 billion KRW) to develop AI and automation technologies. Most of this was led by Hildred Capital in equity investment, with some debt funding provided by J.P. Morgan.

Fintech company Imprint and satellite signal technology developer HawkEye 360 each raised $150 million (approximately 216 billion KRW), tying for fifth place. Imprint, a startup offering co-branded credit cards, was valued at $1.2 billion (approximately 17.28 trillion KRW) in this funding round. HawkEye 360, which provides RF identification services, announced the completion of Series E funding and acquired signal analysis company ISA.

Advanced biotech startup Chai Discovery, which utilizes AI to analyze and redesign chemical molecule interactions, secured $130 million (approximately 187 billion KRW) in Series B funding, with its valuation set at $1.3 billion (approximately 1.872 trillion KRW).

Ambros Therapeutics, which raised $125 million (approximately 180 billion KRW) in early Series A funding, gained attention for acquiring rights to the chronic pain relief drug Nelirupin. Texas-based startup Mythic, developing high-performance AI semiconductor architectures, also received the same amount of funding, completing this round.

Finally, Cambridge-based biopharmaceutical company Atavistik Bio raised $120 million (approximately 173 billion KRW) in Series B. Since its founding four years ago, the company has accumulated a total of $220 million (approximately 317 billion KRW) in investments.

This statistical data is based on funding cases registered in the Crunchbase database from December 13 to 19 in the United States. Due to potential delays in some announcements, efforts to comprehensively reflect overall data are ongoing.