GreatHorn Information
Summary
GreatHorn is a private company that has been in the industry for 11 years. The company currently specializes in the Computer & Network Security, Internet Software, Cybersecurity, Cloud Computing areas. The position of the Co-Founder & CEO is occupied by Kevin O'Brien. Its headquarters is located at Waltham, Massachusetts, USA. The number of employees ranges from 25 to 100. The annual revenue of GreatHorn varies between 100K and 5.0M. Total funding of the company - $22.5M. To connect with GreatHorn employee register on SignalHire.
Organization Website | greathorn.com |
Social Links |  |
Phone Number | 1-800-604-2566 |
Industries | |
Headquarters Location | 1075 Main St, Waltham, Massachusetts, 02451 US |
Employees Size | 10-50 employees |
Specialties | Machine Learning, Information Security, Predictive Security, Cybersecurity, Cloud Security, Spear phishing, Credential Theft, email security, phishing, O365, best email security solution, email security providers |
SIC Code | 7372, 7371 |
DMA Code | Greater Boston |
Founded | 2015 |
Estimated Annual Revenue | $100K - 5.0M |
Operating Status | Independent Company |
Competitors
Founded | Type | Employees | Revenue | Funding | |
|---|---|---|---|---|---|
| 2013 | Privately Held | 250 - 500 | 100M | $390M | |
| 2002 | Privately Held | 500 - 1.0K | 150M | $114.6M | |
| 2013 | Privately Held | 25 - 100 | < 1M | $1M | |
| 2003 | Privately Held | 250 - 500 | 54.5M | $142M |
Employees Turnover 4 quarter 2025
Length of Employment
Employee tenure at GreatHorn shows a diverse range of experience levels:
7% have been with the company for less than 1 year7% for 1–2 years20% for 3–4 years33% for 5–7 years27% for 8–10 years7% have over 11 years of service at GreatHorn
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