Top 10 Cybersecurity Capital Raises and Investors in the U.S. – September 16th – 30th, 2025

Several interesting transactions closed in the Cybersecurity sector over the past two weeks. 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 and Corporate

1. 1. Dodgeball, an orchestration and automation platform for fraud prevention and customer trust operations, was acquired by Spreedly, via its financial sponsor Spectrum Equity, through an LBO.
   2. LetsDefend, an online cybersecurity training platform that builds a blue team career in the SOC field, was acquired by Hack The Box.
   3. Qwiet AI, an application security platform for identifying and mitigating vulnerabilities in software development pipelines, was acquired by Harness.

Later Stage VC

4. 4. Tacticly, on-demand penetration testing tool that identifies and closes security gaps to protect organizations from cyber threats, raised $2.6 million of pre-seed funding in a deal led by Mucker Capital and Chingona Ventures.
   5. WitFoo, computer security software that simplifies, secures, and automates cybersecurity operations, raised $155,500 of venture funding.

Early Stage VC

6. 6. Cloudburst Technologies, provider of cyber monitoring services and cyber threat intelligence tools intended to help track fraud in the cryptocurrency market, raised $7 million of Series A venture funding in a deal led by Borderless Capital.
   7. Hypercycle, operator of scalable infrastructure for the decentralized blockchain network, raised an estimated $52 million of Series A1 venture funding from Contango Digital Assets, Triple Gem Capital and Magnus Capital.

Accelerator/Incubator

8. 8. Alpha Level, a threat detection platform that eliminates false positive alerts, joined Databricks as a part of Databricks AI Accelerator Program and received funding.
   9. Solitude Labs, a decentralized cybersecurity platform that ensures zero-trust security across connected infrastructure, joined 35 Mules as a part of its Fourth Cohort and received $100,000 in funding in the form of a grant.

Seed Round

10. 10. Scalekit, an enterprise authentication and user management platform for the security and compliance requirements of the organization, raised $5.5 million of seed funding in a deal led by Together Fund.

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Rebecca Lacy

Managing Director

Please contact me if you have any questions or would like to discuss your capital raise:

Email: rlacy@castleplacement.com

C: (212) 418-1181 | C: (573) 880-2974

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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.