GreatHorn
GreatHorn is a new kind of cloud security platform that helps detect and prevent spear phishing and credential theft attacks in realtime.
Market Share of GreatHorn
Current Customer(s)
12
Market Share (Est.)
0.01%
Ranking
#127
Top Competitors and Alternatives of GreatHorn
The top three of GreatHorn’s competitors in the Email Security category are Proofpoint with 26.85%, SendinBlue with 13.91%, Campaign Monitor with 9.39% market share.
Popular Comparisons
Top Competitors and Alternatives of GreatHorn
The top three of GreatHorn’s competitors in the Email Security category are Proofpoint with 26.85%, SendinBlue with 13.91%, Campaign Monitor with 9.39% market share.
GreatHorn vs Proofpoint
GreatHorn vs SendinBlue
GreatHorn vs Campaign Monitor
GreatHorn vs Mimecast
GreatHorn vs Mimecast Gateway
GreatHorn vs Sophos Email Gateway
GreatHorn vs Zoho Campaigns
GreatHorn vs Appriver
Customers of GreatHorn
Around the world in 2026, over 12 companies have started using GreatHorn as Email Security tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| CTG | 5,000 - 9,999 | Amherst | New York | United States |     |
| Betterment | 1,000 - 4,999 | New York City | New York | United States | |
| Techstars | 1,000 - 4,999 | Boulder | Colorado | United States | |
| Greenway Health | 1,000 - 4,999 | Tampa | Florida | United States | |
| Medicago Inc | 500 - 999 | Quebec | Quebec | Canada | |
| GreatHorn | 20 - 49 | Waltham | Massachusetts | United States | |
| .406 Ventures | 20 - 49 | Boston | Massachusetts | United States | |
| Mt. Freelance How-to-Freelance | 0 - 9 | Portland | Oregon | United States | |
| Desert Mountain Club | 500 - 999 | Scottsdale | Arizona | United States | |
| Saint Anselm College | 500 - 999 | Manchester | New Hampshire | United States | |
Uncover hidden demand and identify accounts ready to buy with 6sense Intent Data.
GreatHorn Customers by Products and Services
The top three products and services offering customers that use GreatHorn for Email Security are Cybersecurity (2), Real Estate (2), Email Security Providers (1).
Customers
Download the 6sense Chrome Extension to get verified contact data of GreatHorn employees
Install Now
GreatHorn Customers by Employee Size
The majority of GreatHorn's customers for the email-security category fall in the company size of 500 - 999 employees (3 companies), 1,000 - 4,999 employees (3 companies), 20 - 49 employees (3 companies).
Employee Size
GreatHorn Customers by Geography
The top three geographies of GreatHorn for email-security are the United States with 11(91.67%), Canada with 1(8.33%) customers respectively.
Customers
Employees of GreatHorn
Also see other Products/Services by GreatHorn in:
FAQ
Find answers to the most often asked questions by users.
Who are the top GreatHorn competitors?
GreatHorn’s Top competitors in the email-security category are Proofpoint, SendinBlue, Campaign Monitor. You can view a full list of GreatHorn competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of GreatHorn and 40,000 other technologies on the internet. You can also compare GreatHorn and its feature with top competitors here : GreatHorn vs Proofpoint GreatHorn vs SendinBlue GreatHorn vs Campaign Monitor.
What is GreatHorn customer distribution based on company size?
What is GreatHorn market share in the email-security?
What are the top countries that use GreatHorn?
What are the top industries that use GreatHorn?
Get everything in one place
Close deals faster by understanding your clients well. Know their technology stack, contract renewal date, top decision-makers, hiring trends, and top company news in one place.
Get a demoInterested in 6sense for your organization?
Book a Demo
