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Top Seed Cybersecurity companies

Companies defending or attacking software, networks, and cloud infrastructure. Filtered to companies whose latest disclosed round is Seed.

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

Ranked by current headcount across Seed Cybersecurity companies. Refreshed daily.

  1. 1
    Cyderes· Kansas City, Missouri, United States
    • Seed
    • 925 employees
    • Founded 2017
  2. 2
    Netenrich· San Jose, California, United States
    • Seed
    • 909 employees
    • Founded 2004
  3. 3
    GlobalSign· Portsmouth, New Hampshire, United States
    • Seed
    • 506 employees
    • Founded 1996
  4. 4
    Intrinsec· Courbevoie, Île-de-France, France
    • Seed
    • 240 employees
    • Founded 1995
  5. 5
    Kratikal· Noida, Uttar Pradesh, India
    • Seed
    • 193 employees
    • Founded 2012
  6. 6
    CHT Security 中華資安國際· Taipei–Keelung metropolitan area, Taiwan
    • Seed
    • 164 employees
    • Founded 2017
  7. 7
    Code4rena
    • Seed
    • 152 employees
    • Founded 2021
  8. 8
    Jit· Boston, Massachusetts, United States
    • Seed
    • 150 employees
    • Founded 2021
  9. 9
    BreachLock, Inc.· New York, New York, United States
    • Seed
    • 121 employees
    • Founded 2019
  10. 10
    Hive Pro, Inc.· Herndon, Virginia, United States
    • Seed
    • 99 employees
    • Founded 2019
  11. 11
    Strobes Security, Inc.· Plano, Texas, United States
    • Seed
    • 99 employees
    • Founded 2019
  12. 12
    Talion Cyber Security· Wakefield, England, United Kingdom
    • Seed
    • 95 employees
    • Founded 2020
  13. 13
    Qustodio (part of the Qoria family)· Barcelona, Catalonia, Spain
    • Seed
    • 91 employees
    • Founded 2012
  14. 14
    WISeKey SA· Le Grand-Saconnex, Geneva, Switzerland
    • Seed
    • 90 employees
    • Founded 1999
  15. 15
    AKITRA· Sunnyvale, California, United States
    • Seed
    • 89 employees
    • Founded 2017
  16. 16
    Uno (acquired by Okta)· San Francisco, California, United States
    • Seed
    • 89 employees
    • Founded 2020
  17. 17
    Intruder· London, England, United Kingdom
    • Seed
    • 85 employees
    • Founded 2015
  18. 18
    TruU, Inc.· Palo Alto, California, United States
    • Seed
    • 84 employees
    • Founded 2017
  19. 19
    BRANDEFENSE· Ankara, Ankara, Türkiye
    • Seed
    • 83 employees
    • Founded 2019
  20. 20
    CyberTalents· Markaz Abo El Nomros, Al Jizah, Egypt
    • Seed
    • 83 employees
    • Founded 2017
  21. 21
    Dune Security· New York, New York, United States
    • Seed
    • 82 employees
    • Founded 2023
  22. 22
    Wib· Tel Aviv-Yafo, Tel Aviv District, Israel
    • Seed
    • 81 employees
    • Founded 2021
  23. 23
    Appknox· Singapore, Singapore
    • Seed
    • 77 employees
    • Founded 2014
  24. 24
    Theori· Austin, Texas, United States
    • Seed
    • 77 employees
    • Founded 2016
  25. 25
    MIND· Seattle, Washington, United States
    • Seed
    • 76 employees
    • Founded 2023

Find engineers and founders at Seed Cybersecurity companies

Seed Cybersecurity companies are some of the most active hirers in the market. The list above ranks the largest Cybersecurity companies whose latest disclosed round is Seed, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 452matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.

Companies at this stage in Cybersecurity share a profile: a working product, fresh capital, and a hiring plan that wants senior people yesterday. Looking at headcount, last round, and HQ side by side gives you a quick read on where Cybersecurity talent is concentrating right now.

Refolk converts this list into a search. Ask for “Seed Cybersecurity founders hiring senior engineers” or “design leads at Seed Cybersecurity companies” and Refolk returns a fresh ranked shortlist with the sources behind each match.

How this list is built

Refolk pulled Cybersecurity companies 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 5 employees. The list refreshes once a day.

Last refreshed: Thu, 07 May 2026 06:55:53 GMT

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