HackerOne

About HackerOne

HackerOne is a powered security platform that connects businesses with penetration testers and cybersecurity researchers.

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Email Format

{first_name}@hackerone.com — 54.5%

sarah@hackerone.com

{first_name}.{last_name}@hackerone.com — 36.4%

sarah.smith@hackerone.com

{first_name}.{first_letter_middle_name}.{last_name}@hackerone.com — 9.1%

sarah.j.smith@hackerone.com

Key Employees

Contact details of 10 HackerOne executives

Marten Mickos

CEO
  • Work email

    m***********s@hackerone.com

Alex Rice

Co-Founder and CTO
  • Work email

    a**x@hackerone.com

    Verified

Jobert Abma

Co-founder & Engineering
  • Work email

    j****t@hackerone.com

    Verified

Michiel Prins

Co-founder, Customer Success/Product
  • Work email

    m*****l@hackerone.com

    Verified

Kate Samaraev

Principal Customer Account Executive
  • Work email

    k**e@hackerone.com

    Verified

Liz Brittain

CFO
  • Work email

    l*z@hackerone.com

    Verified

Merijn Terheggen

Founder
  • Work email

    m**************n@hackerone.com

    Verified

Code Private

Chief Executive Officer
  • Work email

    c**********e@hackerone.com

    Verified

Jayson Noland

Chief Financial Officer
  • Work email

    j***********d@hackerone.com

    Verified

Attley Ng

Vice President

Other Employees

Contact details of 2 HackerOne other employees

Md Ashik Rahman Rabbi

Security Researcher
  • Work email

    m*********n@hackerone.com

    Verified

Patrick Barsallo

Software Engineer
  • Work email

    p*****k@hackerone.com

    Verified

General Emails

General company emails, e.g. customer support lines

    sales@hackerone.com

    Sales Department

    support@hackerone.com

    Customer Service

    ibb-panel@hackerone.com

    Unclassified inbox

    elizabeth@hackerone.com

    Unclassified inbox

    dane@hackerone.com

    Unclassified inbox

    example@hackerone.com

    Unclassified inbox

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Company Info

Last updated: 12/07/2025

(415) 891-0777

San Francisco, California, United States

HackerOne General Information

Specialization: Technology & Software, Cybersecurity
Legal Name: HackerOne, Inc.
Business Type: Private
Employees: 251-500
Rounds: Series E
Founded Date: 2012
Company Type: For Profit
Operating Status: Active
Last Funding Type: Series E
Phone Number: (415) 891-0777
Last Investment Activity: Jan 11, 2024
Investments Activity: Jan 11, 2024 Aug 4, 2023 Aug 3, 2023

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