LeadIQ logo
Learn more at LeadIQ.com
GreatHorn logo

GreatHorn Employee Directory

Computer and Network SecurityMassachusetts, United States2-10 Employees

GreatHorn provides a cloud-based email security solution designed to reduce risk from everyday email use at large, multinational companies. Based in Waltham, Massachusetts, the company employs a multi-stage approach that blends data science, machine learning, technical analysis, and human input to protect organizations before, during, and after phishing attempts.

Find GreatHorn employees' phone numbers or email addresses

GreatHorn Global Highlights

Location
Employees

North America
41

Minus sign iconPlus sign icon
  • United States Of America
    40
  • Canada
    1

GreatHorn's Leadership

  • Chief Executive Officer at GreatHorn
    M. C. M.
    Chief Executive Officer
    Mobile Phone
  • Chief Executive Officer at GreatHorn
    K. O. B.
    Chief Executive Officer
    Mobile Phone
  • Chief Executive Officer & Co-Founder at GreatHorn
    K. O.
    Chief Executive Officer & Co-Founder
    Mobile Phone
  • Vice President Of Finance at GreatHorn
    C. Y.
    Vice President Of Finance
    Mobile Phone
  • Chairman at GreatHorn
    M. A.
    Chairman
    Mobile Phone
  • Executive Vice President Engineering at GreatHorn
    J. L.
    Executive Vice President Engineering
    Mobile Phone
  • Customer Success Manager at GreatHorn
    J. C.
    Customer Success Manager
    Mobile Phone
  • Senior Software Engineer at GreatHorn
    M. S.
    Senior Software Engineer
    Mobile Phone

GreatHorn Employee Metrics

100%
50%
0%
2026
2025
  • Engineering
  • Customer Success
  • Sales
  • Analytics
  • Marketing
  • Other
  • Consultant
  • Business
  • Media & Communications
  • Quality Assurance

Contact profiles from GreatHorn

Name
Title
Contact
Location
Last Update
  • Marketing Coordinator at GreatHorn
    H. H.
    Marketing Coordinator
    Mobile Phone
    Jun 25, 2026
  • Account Executive at GreatHorn
    J. Q.
    Account Executive
    Mobile Phone
    Oct 23, 2024
  • Business Development Representative at GreatHorn
    M. F.
    Business Development Representative
    Mobile Phone
    Oct 22, 2024

Frequently Asked Questions

What is GreatHorn known for?

Minus sign iconPlus sign iconGreatHorn operates in the Computer and Network Security industry. You can contact GreatHorn's main corporate office by phone at
+1-800-604-****
. Explore GreatHorn's company overview page for more information.

What is GreatHorn's most common email format?

Minus sign iconPlus sign iconGreatHorn employees' email format typically follows the pattern of FLast@greathorn.com. Trying to find reliable and up-to-date employee contact data? Find more GreatHorn email formats with LeadIQ.

How many employees does GreatHorn have currently?

Minus sign iconPlus sign iconGreatHorn has approximately 7 employees as of October 2026. These team members are located across 1 continents, including North America.

Who are GreatHorn's key employees and leadership?

Minus sign iconPlus sign icon

As of October 2026, GreatHorn's key employees include:

  • Chief Executive Officer: M. C. M.
  • Chief Executive Officer: K. O. B.
  • Chief Executive Officer & Co-Founder: K. O.
  • Vice President Of Finance: C. Y.
  • Chairman: M. A.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Everything for prospecting,
in one platform.

What you can expect from LeadIQ:

  • B2B data verified in real-time
  • Sync data to your CRM, & add it to an outreach sequence in one click
  • Integrations with your tech stack for optimal efficiency
  • A patented AI cold email generator
  • Account & contact-level job change tracking

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.