C5 Capital is a venture capital and private equity firm that exclusively invests in the cybersecurity, space, and nuclear energy sectors. Their strategy focuses on supporting companies that address critical global challenges related to national security, data protection, and environmental sustainability, aiming for both financial returns and societal impact.
56% of their portfolio is in Cybersecurity. Their most common stage is series-b (44% of deals). Average disclosed round size is $52.2M (across 9 rounds with reported amounts).
Portfolio
9
Fund Size
—
Top Stage
Series B
Last 12 Mo
0
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
9 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 RapidSOS | Series C | $75M | Oct 2022 |
 Cassava Technologies | Unknown | $50M | Jul 2022 |
 Enveil | Series B | $25M | Apr 2022 |
 Kevala | Series A | $21M | Aug 2021 |
 Axiom Space | Series B | $130M | Feb 2021 |
 Panoply | Series B | $10M | Oct 2020 |
 4iQ | Series C | $30M | Oct 2020 |
 Shape Security | Series F | $51M | Sep 2019 |
| IIronNet | Series B | $78M | — |
Top Co-Investors
ForgePoint Capital2 shared
Kleiner Perkins2 shared
Benhamou Global Ventures1 shared
Adara Ventures1 shared
TheVentureCity1 shared
Ibex Investors1 shared
Norwest Venture Partners1 shared
JetBlue1 shared
HPE Growth1 shared
Top Tier Capital Partners1 shared
Bloomberg Beta1 shared
USAA1 shared
Mastercard1 shared
Capital One Ventures1 shared
DataTribe1 shared
In-Q-Tel1 shared
1843 Capital1 shared
Insight Partners1 shared
NightDragon1 shared
BAM Elevate1 shared
Last updated: 15 April 2026