vcvibes

Clearsky Advisors LLCFirm match from fund name (lower confidence)

ClearSky Fund IV LP

Raising

Raising: Form D filed Nov 2025 reports amount sold below target

Vintage
2025
Fund size
$58.4M to $500M (Form D)
Stages
Series B
Sectors
Energy
Regions
Not stated

01 · Thesis

ClearSky is a venture capital and growth equity firm investing in innovative companies in the cybersecurity and energy transition sectors, focusing on technology solutions that power the energy transition and disruptive cybersecurity technologies.Inferred from the firm's website

02 · Initial check

$1.56M to $25M (estimated from fund size)

Estimated from Form D: $58.4M sold of a $500M target

03 · Who to approach

Named on this fund's Form D

  • Alex Weiss, CEO, Co-Founder & Managing Partner
  • James Huff, Co-Founder & Managing Partner

04 · Deals

No deals attributed to this fund yet.

05 · Evidence

  • Firm-wideClearSky is a venture capital and growth equity firm investing in innovative companies in the cybersecurity and energy transition sectors.

    ClearSky is a venture capital and growth equity firm investing in innovative companies in the cybersecurity and energy transition sectors
    https://www.clear-sky.com/

06 · Sources

  1. https://www.clear-sky.com/
  2. https://www.sec.gov/Archives/edgar/data/2043315/000204331525000003/

Last verified: Oct 28, 2026