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Seed Cybersecurity companies in New York

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

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

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

  1. 1
    BreachLock, Inc.· New York, New York, United States
    • Seed
    • 121 employees
    • Founded 2019
  2. 2
    Dune Security· New York, New York, United States
    • Seed
    • 82 employees
    • Founded 2023
  3. 3
    ReasonLabs· New York, New York, United States
    • Seed
    • 66 employees
    • Founded 2016
  4. 4
    OutThink· New York, New York, United States
    • Seed
    • 64 employees
    • Founded 2015
  5. 5
    Zepo Intelligence· New York, New York, United States
    • Seed
    • 46 employees
    • Founded 2021
  6. 6
    CounterCraft· New York, New York, United States
    • Seed
    • 39 employees
    • Founded 2015
  7. 7
    Aegis AI Security· New York, New York, United States
    • Seed
    • 30 employees
    • Founded 2025
  8. 8
    Polymer Runtime Data Security· New York, New York, United States
    • Seed
    • 29 employees
    • Founded 2021
  9. 9
    Entitle - a BeyondTrust company· New York, New York, United States
    • Seed
    • 25 employees
    • Founded 2021
  10. 10
    SPLX, a Zscaler Company· New York, New York, United States
    • Seed
    • 24 employees
    • Founded 2023
  11. 11
    Zip Security· New York, New York, United States
    • Seed
    • 22 employees
    • Founded 2022
  12. 12
    Onyxia Cyber· New York, New York, United States
    • Seed
    • 21 employees
    • Founded 2022
  13. 13
    ZEST Security· New York, New York, United States
    • Seed
    • 21 employees
    • Founded 2023
  14. 14
    Symbiotic Security· New York, New York, United States
    • Seed
    • 21 employees
    • Founded 2024
  15. 15
    Charm Security· New York, New York, United States
    • Seed
    • 21 employees
    • Founded 2024
  16. 16
    Hopper Security· New York, New York, United States
    • Seed
    • 18 employees
    • Founded 2023
  17. 17
    Anonybit· New York, New York, United States
    • Seed
    • 16 employees
    • Founded 2020
  18. 18
    RevBits· Mineola, New York, United States
    • Seed
    • 13 employees
    • Founded 2016
  19. 19
    CYVIATION· New York, New York, United States
    • Seed
    • 13 employees
    • Founded 2021
  20. 20
    Better Mobile Security· New York, New York, United States
    • Seed
    • 10 employees
    • Founded 2011
  21. 21
    PIXM· New York, New York, United States
    • Seed
    • 9 employees
    • Founded 2019
  22. 22
    Axiom Security· New York, New York, United States
    • Seed
    • 9 employees
    • Founded 2021
  23. 23
    Criptext· New York, New York, United States
    • Seed
    • 7 employees
    • Founded 2014
  24. 24
    North Pole Security· Brooklyn, New York, United States
    • Seed
    • 7 employees
    • Founded 2024
  25. 25
    Crosswire· New York, New York, United States
    • Seed
    • 5 employees
    • Founded 2021

Find engineers at Seed Cybersecurity companies in New York

Searching for “engineers at top Seed 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 Seed, by current headcount, drawn from public LinkedIn and Crunchbase records. With 28 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 — Seed, 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 Seed Cybersecurity companies in New York hiring” or “founders of Seed 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 Seed 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: Thu, 07 May 2026 07:57:07 GMT

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