June 2025 Newsletter

This newsletter covers new financings, key milestones, and strategic developments regarding ClearSky and our portfolio companies.

Woman working on a laptop and a man installing a solar panel

ClearSky Annual Meeting 2025

In May 2025, ClearSky hosted its Annual General Meeting at the PGA National Resort in Palm Beach Gardens, Florida. This event convened key stakeholders integral to ClearSky’s success, including our investment team, portfolio company executives, strategic partners, investors, and other essential collaborators.

Keynote speakers included former Florida Governor Jeb Bush, Jack Ablin, and Dr. Philipp Rösler, who provided insightful commentary on current political dynamics, macroeconomic trends, and the global energy landscape. Their perspectives highlighted investment opportunities emerging within the energy transformation and cybersecurity sectors and the increasing convergence between these critical industries.

Additionally, expert-led panels explored critical topics such as AI & data centers, the state of nuclear energy, and the evolving cybersecurity landscape in the age of AI. Representatives from our portfolio companies—including Altamira, Diamanti, Guardz, Mainspring, Ubicquia, and XGS Energy—shared updates on their recent achievements and upcoming initiatives.

ClearSky’s CEO and Managing Partner, Alex Weiss, provided a comprehensive fund performance overview, emphasizing ClearSky’s leading IRR and DPI metrics. We are actively fundraising for ClearSky Fund IV and are excited by the market opportunities within the energy transformation and cybersecurity markets.

For copies of materials presented during the meeting or further information, please contact Jackie de Sanctis, Head of Investor Relations, at jackie@clear-sky.com.

Our Recent Investments & Exits

ClearSky Leads Guardz Financing

ClearSky led the $56 million oversubscribed Series B financing of Guardz, a managed detection and response (MDR) platform purpose-built for Managed Service Providers (MSPs) supporting small and mid-sized businesses (SMBs). (Read press release…).

Guardz recently relocated its headquarters to Miami, FL, and is led by Dor Eisner, a ClearSky portfolio company alum. In addition to its experienced cybersecurity leadership, Guardz is also differentiated by its digital marketing expertise, bringing a digital-first, low-touch approach to customer acquisition. Guardz enables MSPs to quickly onboard and scale across their customer base, driving efficiency, protection, and long-term value. (Read press release…).

ClearSky Participates in Lasso Security Financing

ClearSky participated in a Simple Agreement for Future Equity (SAFE) of Lasso Security. Lasso is a developer of a cybersecurity platform aimed at protecting businesses from emerging threats associated with using large language models (LLMs) and generative AI platforms.

Lasso also recently announced a strategic partnership with Swish Data Corporation, a provider of technology solutions and engineering services to the U.S. public sector, to deliver its GenAI security platform to several public sector organizations. (Read press release…).

ClearSky Participates in Qwiet AI Financing

ClearSky participated in a convertible note financing of Qwiet AI. Qwiet AI is an AI-driven application security solution that detects and fixes vulnerabilities in code using its proprietary preZero platform, which leverages code property graph (CPG) technology.

Qwiet AI was also recently selected as the winner of Best Application Security Solution at the 2025 SC Awards. (Read press release…).

ClearSky Quarterly Insights from the ClearSky Team XGS Logo

ClearSky Leads XGS Energy Financing

ClearSky led a Simple Agreement for Future Equity (SAFE) financing in XGS Energy. XGS Energy is a developer of a closed-loop geothermal technology for renewable, baseload energy.

In June 2025, XGS partnered with Meta to develop 150 MW of next-generation geothermal energy, highlighting the critical role XGS will play in rapidly delivering reliable electricity to meet growing energy demand. XGS’s technology will be deployed to the Public Service Company of New Mexico’s electric grid and support Meta’s data center operations in New Mexico. (Read press release…).

Fermata Energy Assets Acquired by Nuvve Holding

In April 2025, the assets of ClearSky portfolio company Fermata Energy, a developer of vehicle-to-grid software and chargers allowing utilities, light-duty, and fleet EV owners to use the energy storage capability of their vehicles, were acquired by Nuvve Holding, a leader in vehicle-to-grid (V2G) technology and grid modernization. (Read press release…).

Phylum Acquired by Veracode

In January 2025, ClearSky portfolio company Phylum, a security platform that solves software supply chain vulnerabilities, was acquired by Veracode, a global leader in application risk management. (Read press release…).

Portfolio Companies in the News

AppOmni Launches SaaS Security Model Context Protocol (MCP)

AppOmni announced the launch of its SaaS Security Model Context Protocol (MCP) to provide organizations with deep visibility into their SaaS applications’ security posture. (Read press release…).

Arctic Wolf Acquires Blackberry’s Cylance Assets

Arctic Wolf announced its acquisition of Blackberry’s Cylance assets, enhancing Arctic Wolf’s endpoint security offerings. Arctic Wolf is currently working on integrating and onboarding Cylance’s channel partners into its partner program. (Read press release…).

Arctic Wolf also announced a strategic collaboration with Anthropic, focused on accelerating the development of autonomous Security Operations Centers (SOCs). This partnership brings together Arctic Wolf’s operational expertise and extensive threat data with Anthropic’s advancements in building safe and controllable AI systems. (Read press release…).

BigID Launches AI Privacy Risk Posture Management Solution

BigID launched its AI Privacy Risk Posture Management solution to help organizations manage data privacy risks across the AI lifecycle. (Read press release…).

BigID also announced its integration with SentinelOne to embed actionable Data Security Posture Management (DSPM) insights from BigID into SentinelOne. (Read press release…).

Databricks Announces Strategic Partnership with Palantir

Databricks and Palantir announced a strategic five-year product partnership to deliver secure and efficient AI to customers through the Databricks Data Intelligence Platform. This product partnership combines Palantir’s AI operating system and Databricks’ platform for AI, data warehousing, and data engineering. (Read press release…).

Databricks also announced the expansion of its EMEA leadership team with the appointment of two new senior executives, who will focus on scaling adoption of the Databricks Data Intelligence Platform across Europe, the Middle East, and Africa. (Read press release…).

EdgeQ Partners with BATS Wireless

EdegQ, a platform that creates 5G and Wi-Fi base stations on a chip for enterprise and carrier edge apps, recently announced its partnership with BATS Wireless, a next-gen wireless networking platform, to deliver converged 4G and 5G wireless radios powered by EdgeQ’s base station-on-a-chip. (Read press release…).

EdgeQ and Mavenir, a cloud-native network infrastructure provider, also recently announced the launch of their next-gen 4G and 5G small cells. (Read press release…).

Harness Acquires Traceable

Harness acquired Traceable, an API security platform, to enhance the DevSecOps integration experience. (Read press release…).

Mainspring Closes $258 Million Series F Financing

Mainspring recently announced it has secured $258 million in Series F funding led by General Catalyst. This financing will expand the company’s linear generator power business and operations as it grows in both manufacturing and customer sales. Mainspring Energy is a developer of high-efficiency, gas-fired linear generator technology for distributed power generation. (Read press release…).

Optiv Wins 2025 Google Cloud Security Partner of the Year Award

Optiv announced that it received the 2025 Google Cloud Security Partner of the Year Award for North America. (Read press release…).

Optiv + ClearShark also recently launched FedRAMP advisory services to help organizations working with federal agencies securely align their cloud service offerings to a standardized approach. (Read press release…).

ProcessUnity Introduces Evidence Evaluator

ProcessUnity saw positive network effects from its technology re-platform in Q1’25, which helped obtain better visibility into its vendor assessments.

ProcessUnity also recently introduced Evidence Evaluator, its generative AI technology, which automatically reviews third-party evidence and populates assessment responses. (Read press release…).

Renew Home Announces its Roll Out of New VPP Features

Renew Home successfully launched the first phase of its integration with the newly released Google Nest thermostat in 2024 and will now roll out new VPP features in summer 2025. Renew Home will work with energy providers to incorporate up-to-date tariffs and grid or capacity constraints into an aggregated resource that can dispatch within five minutes. (Read press release…).

Sceye Achieves Real-Time Stratospheric Methane Detection

Sceye, a material science company that is developing High-Altitude Platform Systems (“HAPS”) designed for Earth observation and connectivity use cases, recently announced findings from its real-time methane detection mission from the stratosphere, which identified specific emitters and quantified the rate of emissions.

This breakthrough, in partnership with the US Environmental Protection Agency (EPA) and the New Mexico Environment Department (NMED), demonstrates Sceye’s ability to deliver continuous, high-resolution methane monitoring to enable faster response, improved regulatory oversight, and accountability for climate pollution. (Read press release…).

Industry News

Economic Growth Now Depends on Electricity, Not Oil

The shifting foundation of U.S. economic growth from oil to electricity is driven by increasing electricity demand from data centers, AI applications, transport electrification, and modern infrastructure. This transformation necessitates substantial investment in electricity generation, transmission, storage, and distribution. While electricity offers more domestic energy security than oil, it introduces new challenges, such as infrastructure shortages, regulatory hurdles, and partisan divisions over policies on fossil fuels and renewable energy subsidies.

AI is the greatest threat—and defense

AI is simultaneously amplifying cyber threats while significantly strengthening defenses. On one hand, malicious actors are leveraging AI to accelerate and personalize attacks through phishing, deepfakes, and malware, making them more difficult to detect and defend. Conversely, organizations are increasingly adopting AI-powered tools to enhance threat detection, automate responses, and bolster defenses through innovations like agentic AI and Security Operations Center automation. This dual role of AI underscores the urgent need for companies to integrate advanced AI-driven cybersecurity solutions to stay ahead of evolving threats.

Thank you for your support and feel free to contact us.

Sincerely,
The ClearSky Team