Stream.Security announced a $30 million Series B on October 22, 2024, led by U.S. Venture Partners. The company said the round brought its total investment to $55 million. Citi Ventures joined the financing, alongside four existing investors.
Who invested in Stream.Security’s Series B?
Stream.Security’s October 22, 2024 announcement names U.S. Venture Partners as the lead investor and Citi Ventures as a new investor. Existing investors Energy Impact Partners, Cervin Ventures, TLV Partners, and Glilot Capital Partners VC also participated.
| Round detail | What Stream.Security announced |
|---|---|
| Amount raised | $30 million |
| Lead investor | U.S. Venture Partners |
| New investor | Citi Ventures |
| Existing investors participating | Energy Impact Partners, Cervin Ventures, TLV Partners, and Glilot Capital Partners VC |
| Total investment after the round | $55 million, according to Stream.Security |
The $55 million figure is the company’s stated cumulative investment total; the announcement does not provide a breakdown of earlier rounds.
What does Stream.Security do?
Stream.Security sells cloud security software centered on a product it calls CloudTwin. The company describes CloudTwin as a dynamic, real-time model of cloud infrastructure, configurations, activity, and user behavior. Its stated aim is to give security operations teams context for detecting and investigating threats and exposures, and responding to them.
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How the company says CloudTwin is used
- Trace potential attack paths and estimate the blast radius of a threat or exposure.
- Add cloud-environment context to security operations center investigations.
- Prioritize remediation based on the risks identified.
These are Stream.Security’s product claims, not independently verified performance findings. The funding announcement does not provide a neutral comparison with other cloud security products or independently measured customer outcomes.
How does Stream.Security plan to use the funding?
In its October 2024 announcement, Stream.Security said it intended to invest in CloudTwin research and development, expand go-to-market efforts and global reach, and grow customer success and support. Those were plans stated at the time of the round; the announcement does not establish how much went to each area or whether the plans were later completed.
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What growth and customer results did the company report?
Stream.Security’s funding post reported more than 400% growth and dozens of global enterprise customers. It also attributed a 75% reduction in SOC, SecOps, and DevOps labor costs and 35% faster onboarding and training to customer impact. These figures are company-reported; the cited material does not provide independent corroboration or the methodology needed to assess how they were calculated.
The post also cited an average 2024 data-breach cost of $4.88 million attributed to IBM, and a claim that 82% of organizations require more than seven hours to respond, attributed to ESG Research without a publication year. The original IBM and ESG publications were not retrieved in the sources supporting this story, so these should be treated as figures cited by Stream.Security rather than independently checked statistics.
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Stream.Security announced an expansion into cloud security under its current name in November 2023, describing its real-time Cloud Twin approach. An earlier March 2022 release described the business as Lightlytics, a cloud operations platform for safer infrastructure configuration changes. The announcements show a change in positioning over time; they do not, by themselves, establish the full details of the company’s corporate or product transition.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the funding announcement does—and does not—show
The October 2024 announcement establishes the round’s stated size, lead investor, participating investors, and the company’s intended uses for the capital. It also explains how Stream.Security positions CloudTwin. It does not establish that the product outperforms alternatives, independently validate the company’s customer-impact figures, or show that the announced spending plans were completed.
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