Lockstep is a cybersecurity-focused venture capital firm founded by experienced CISOs Rinki Sethi and Lucas Moody. The firm invests in early-stage cybersecurity startups, leveraging deep operational expertise and a practitioner network to back disruptive security technologies.
40% of their portfolio is in Climate & Energy. Their most common stage is series-a (40% of deals). Average disclosed round size is $19.0M (across 5 rounds with reported amounts).
Portfolio
4
Fund Size
—
Top Stage
Series A
Last 12 Mo
0
Team
JS
James Serassio
Operating Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Portfolio
5 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| CCogent | Series A | $11M | Jan 2026 |
| OOpsin | Seed | $7M | — |
 Opsin Security | Unknown | $7M | — |
 Artemis | Seed | $15M | — |
| Artemis | Series A | $55M | — |
Top Co-Investors
CapitalX2 shared
First Round Capital2 shared
Felicis2 shared
Definition Capital1 shared
Bain Capital Ventures1 shared
Paladin Capital Group1 shared
Greylock Partners1 shared
Datadog1 shared
Plug and Play Tech Center1 shared
Sunflower Capital1 shared
Two Sigma Ventures1 shared
Last updated: 27 September 2026