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Series A Cybersecurity companies in New York

Companies defending or attacking software, networks, and cloud infrastructure. Filtered to Series A-stage companies headquartered in New York.

Edit the query above, or pick a refinement. 100 free credits on sign-up, no card needed.

Built from a search like: “Top Series A Cybersecurity companies in New York”

Ranked by current headcount across Series A Cybersecurity companies in New York. Refreshed daily.

  1. 1
    TypingDNA· Brooklyn, New York, United States
    • Series A
    • 149 employees
    • Founded 2016
  2. 2
    LayerX Security· New York, New York, United States
    • Series A
    • 113 employees
    • Founded 2021
  3. 3
    Seal Security· New York, New York, United States
    • Series A
    • 112 employees
    • Founded 2022
  4. 4
    Nagomi Security· New York, New York, United States
    • Series A
    • 75 employees
    • Founded 2023
  5. 5
    Gambit Security· New York, New York, United States
    • Series A
    • 75 employees
    • Founded 2024
Reveal 26 more·100 free credits, no card

Find engineers at Series A Cybersecurity companies in New York

Searching for “engineers at top Series A Cybersecurity companies in New York” surfaces this slice of the market. The list above ranks Cybersecurity companies headquartered in New York whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. With 31 matching companies in our index, this is a tight read on where the Cybersecurity talent in New York is heating up.

Three filters at once narrows the field hard. The companies that survive all three - Series A, Cybersecurity, in New York - are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become Cybersecurity’s next operators and angel investors.

Refolk converts this list into a live search. Ask for “senior engineers at Series A Cybersecurity companies in New York hiring” or “founders of Series A Cybersecurity companies in New York who left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.

How this list is built

Refolk pulled Cybersecurity companies headquartered in New York whose latest disclosed funding round is Series A from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 3 employees. The list refreshes once a day.

Last refreshed: Sun, 21 Jun 2026 10:58:48 GMT

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