ClearSky Security

ClearSky Cyber Security provides cyber solutions focused on threat intelligence services.

Venture Capital Active Tel Aviv, Israel Est. 2012
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Last updated 2026-07-20
Portfolio
0
in our dataset
Rounds participated
0
Rounds led
0
Rounds' value
—
total disclosed, rounds participated
Stages
B Round, Seed, A Round, C Round

About

ClearSky Cyber Security offers cyber solutions, primarily focusing on threat intelligence services for sectors such as finance, critical infrastructure, public sector, and pharmaceuticals. The company develops unique cyber suites tailored to client needs, including threat intelligence, threat actor identification, Cyber TTX, and developing defense layers to prevent, detect, and mitigate cyberattacks. ClearSky is part of the Cyber Security Consortium, deploying cyber solutions globally and providing services like Cyber Intelligence, Cyber Strategy, National CERT deployment, Cyber Training, and Cyber Solution Architecture.

Portfolio

No portfolio companies in this dataset yet.

Investment activity

1 portfolio exit on record.

Portfolio by sector

Cyber Security3
Fintech & Insurtech1

Funds · 2

  • Clearsky Power & Technology Fund II — $210M May 2019
  • learSky Security Fund I — $244.7M Aug 2018

Q&A

What is ClearSky Security's primary investment focus?
ClearSky Security specializes in investing in innovative companies within the cybersecurity and energy transition sectors.
When was ClearSky Security founded?
ClearSky Security was founded in 2012.
Which notable funds has ClearSky Security raised?
ClearSky Security raised the learSky Security Fund I, closing at $244.7 million in August 2018, and the Clearsky Power & Technology Fund II, which raised $210 million in May 2019.
Can you name some of ClearSky Security's recent portfolio companies?
ClearSky Security's recent portfolio includes Guardz, a cybersecurity platform for MSPs, and Lasso, a cybersecurity platform for Agentic AI.
What is ClearSky Security's most recent exit?
ClearSky Security had an exit in April 2024 with the acquisition of T-REX by Finsight Group.
Who are the founders of ClearSky Security?
The founders of ClearSky Security are Alex Weiss, who serves as CEO & Managing Director, and James Huff, a Managing Partner.
What investment stages does ClearSky Security typically participate in?
ClearSky Security invests across Seed, A Round, B Round, and C Round stages.
What is the geographic focus of ClearSky Security?
ClearSky Security is headquartered in West Palm Beach, Florida, United States.
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