ClearSky

General contacts
Investor type

PE / VC

Founded

2012

AUM

$1 000 M

Location

West Palm Beach, Florida, United States

Investment Ticket

$10-50 m

Investment Stage

Series A Seed Series B Late Stage (Series C+)

Region of investment

North America Europe
Investor profile last updated: 16 August, 2026

Profile

ClearSky is a venture capital and growth equity firm based in the United States, specializing in investments within the cybersecurity and energy transition sectors. Founded in 2012, the firm has a team with over 100 years of combined experience across multiple business cycles. ClearSky is known for its extensive network of founders, CEOs, venture capitalists, and industry advisors, which enhances its investment strategy and diligence processes.

The firm primarily focuses on technology solutions promoting the energy transition and innovative cybersecurity measures. ClearSky manages approximately $1 billion in capital commitments. They aim to drive transformative technologies to market and deliver significant value to their partners. The firm leverages deep sector-specific and financial expertise, aligning with industry trends and opportunities.

Notable investments by ClearSky include Systems Control - a leader in control systems, Altamira - a defense and intelligence technology company, HUMAN - specializing in bot mitigation, Renew Home LLC - focusing on sustainable home improvement, Utility Innovation Group - developing advanced utilities services, Ubicquia - offering smart city solutions, and Fortress - securing comprehensive security solutions. The firm's investment approach is driven by a focus on sustainability and cybersecurity advancements.

Industry

Financial Services Fintech Real Estate Security Cybersecurity Software Technology Infrastructure Energy CleanTech

ClearSky Funds

Name Type
Questionare
Industry
Questionare
Stage
Questionare
Region 		Size AUM Launch date
Security Fund I
Venture Capital (VC)
Energy
Cybersecurity
Pre-seed
Seed
Series A
North America
$5-10 m
$244 M
August 2018

Contacts

Name
Title
Email
Social Networks
avatar
Sam Small Operating Partner & Chief Information Security Officer
Operating Partner & Chief Information Security Officer
s•••@•••
LinkedIn
avatar
Erik Straser Managing Director
Managing Director
e•••@•••
LinkedIn
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Investment-team contacts for ClearSky — including verified work emails and LinkedIn profiles — are available to Private Equity List subscribers.
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FAQs about ClearSky

ClearSky is a venture capital and private equity firm. It backs companies at Series A, Seed, Series B and Late Stage (Series C+), writing tickets of $10-50 m.
ClearSky is located in West Palm Beach, Florida, United States.
ClearSky was founded in 2012.
ClearSky invests in companies and startups in Financial Services, Fintech, Real Estate, Security, Cybersecurity, Software, Technology, Infrastructure, Energy, CleanTech.
ClearSky invests in companies and startups in North America, Europe.
ClearSky invests in companies and startups at Series A, Seed, Series B, Late Stage (Series C+).
ClearSky usually invests $10-50 m on average.
ClearSky has around $1 000m assets under management.
ClearSky last fund was created/launched in 2018-08-08
ClearSky can be reached through its website clear-sky.com and its LinkedIn page. Its general enquiries address is [email protected]. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for ClearSky — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
Yes. Every field on this page — profile, funds, investment criteria, portfolio and investment-team contacts — is available programmatically through the Private Equity List REST API and MCP server, so AI assistants such as Claude and ChatGPT can query ClearSky directly instead of scraping this page. One subscription covers both the web app and machine access — see API & MCP.
Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 16 August, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.