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C5 Capital

C5 Capital

London, Englandc5capital.com

Overview

C5 Capital is a venture capital and private equity firm specializing in investments within the cybersecurity, cloud infrastructure, and clean energy sectors. The firm focuses on supporting companies that address critical global challenges, particularly in areas of national security, data protection, and environmental sustainability. C5 Capital exclusively invests in the secure data ecosystem including cybersecurity, cloud infrastructure, data analytics and space, looking for businesses with substantial growth potential.

Year Founded

2009

Portfolio Companies

21

Investments

C5 Capital investments
CompanyDateStageLead
Collective DefenceJun 2026Private EquityLead
InvygoJun 2024Series A ExtensionCo-investor
RapidSOSMar 2024Series C ExtensionCo-investor
IronNetFeb 2024RecapLead
IronNetJan 2023Convertible DebtLead

Sector & Stage Mix

Industry, funding stage, and valuation band breakdowns.

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SeedSeries ASeries BGrowth

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Investment Activity

Yearly cadence, pace, and funding raised over time.

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2021
2022
2023
2024
2025
2026

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Firmographic Details

HeadquartersLondon, England
Year Founded2009

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