Series A cybersecurity investors active in 2026.
20 investors with a publicly documented Series A cybersecurity deal announced in the last 6 months, each carrying a SeedForge-recorded claim and a link to the underlying announcement. Stale evidence ages out at the weekly refresh.
Every entry is a publicly reported deal, linked to its source. SeedForge compiles these reports and does not rate or value any company or security.
Which Series A cybersecurity investors are active right now?
As of November 9, 2026, the SeedForge Active Investor List includes 20 Series A cybersecurity investors with a publicly evidenced deal announced in the last 6 months, including SYN Ventures, Jump Capital, Sienna Venture Capital and Corner Ventures. Each row links to its announcement; investors without evidence in the last 180 days are removed at the weekly refresh.
4 of these investors have a recorded warm-intro path on SeedForge: portfolio founders who can be asked for an introduction.
No investors match these filters.
- Added
- 0
- investors new this refresh
- Aged out
- 0
- latest evidence passed 180 days
- Withheld
- 5
- candidate rows not published
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How this list is built (method v1.13)
An investor appears on this page only with a named, dated participation in a financing announced in the last 180 days, backed by a public source linked on the row. Dates shown are when each deal was announced, as established by research; where the linked post was published later, its date is shown beneath as "evidence posted". A separately confirmed closing date appears on the fund page where research established one. Rows whose latest evidence ages past 180 days are removed at the weekly rebuild, and rows with insufficient evidence are withheld rather than padded.
This list is free to use and cite. Investor contact details are never published.
Cite as: SeedForge Active Investor List: Series A cybersecurity investors active in 2026. Updated 2026-11-09. seedforge.com/investors/active/cybersecurity/series-a