VC Deal Flow Signal

Q4 2025 Rankings

Cybersecurity Startups to Watch, Q4 2025

Cybersecurity engineering teams show a bifurcated pattern: vulnerability scanning sprints vs. identity teams with steady commits but growing contributor lists.

#CompanyStageGeoCommits (14d)ChangeContributorsContrib. GrowthNew ReposSignal
1
zeek

GrowthUS103+72%100+58%2Engineering hiring burst
2
nomi-sec

Security

Pre-seedUnknown174+16%1+0%0Framework migration

Sorted by commit velocity change (14-day window, descending). Top 3 highlighted. Data last updated Q4 2025.

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Frequently Asked Questions

What engineering signals are cybersecurity startups showing in Q4 2025?

In Q4 2025, we are tracking 2 cybersecurity startups with measurable GitHub engineering signals. 2 of 2 show positive commit velocity growth. The most common signal type is "Framework migration", observed in 1 of the tracked companies. The average 14-day commit velocity across the sector is 139 commits, with zeek leading at 103 commits (+72% change). These patterns have historically preceded fundraise announcements by six to twelve weeks.

Which cybersecurity startup has the highest engineering acceleration in Q4 2025?

zeek leads the cybersecurity sector in Q4 2025 with 103 commits over a 14-day window, representing a +72% change from the prior period. With 100 active contributors and 2 new repositories, zeek is showing a "Engineering hiring burst" pattern — one of the more reliable leading indicators of a significant product milestone or fundraise.

Where are the most active cybersecurity engineering teams located?

Among the 2 cybersecurity startups we track, US accounts for the highest concentration with 1 teams. Startups protecting systems, networks, and data from digital attacks. Geographic distribution matters for investors because engineering talent clusters correlate with sector-specific domain expertise and proximity to early adopter customers.

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