Insights

Target Enterprise GreatHorn serves Global 2000 companies and has a cloud email security platform that addresses advanced threats like business email compromise and impersonation, presenting a strong value proposition for large, security-conscious organizations.

Growth Momentum With recent leadership hires in sales and a documented history of product launches and security research reports, there is evidence of scalable go-to-market activity and ongoing enhancements that can be leveraged to expand within existing customers and capture new logos.

Risk Management Position the solution as a holistic risk-management function for email, offering real-time user warnings and robust response tools to reduce exposure, which resonates with CIOs and CISOs aiming to minimize financial and reputational risk.

SaaS Ecosystem The tech stack and integrations (HubSpot Analytics, Intercom, iCIMS, ZoomInfo, etc.) indicate compatibility with common marketing, sales, and HR tech ecosystems, enabling streamlined procurement and potential co-sell opportunities.

Competitive Benchmark Comparable firms operate at much larger scales, suggesting an opportunity to target mid-market and growing enterprises that seek enterprise-grade email security without the heft of multimillion-dollar deployments, using benchmarks from industry reports to prove ROI.

Similar companies to GreatHorn

GreatHorn Tech Stack

GreatHorn uses 8 technology products and services including AdRoll, Twitter Ads, Hotjar, and more. Explore GreatHorn's tech stack below.

Media & News

GreatHorn's Email Address Formats

GreatHorn uses at least 4 email formats:
GreatHorn Email FormatsExamplePercentage
FLast@greathorn.comJDoe@greathorn.com
95%
FirstL@greathorn.comJohnD@greathorn.com
2%
Last.F@greathorn.comDoe.J@greathorn.com
1%
Last.First@greathorn.comDoe.John@greathorn.com
2%

Frequently Asked Questions

What is GreatHorn's phone number?

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You can contact GreatHorn's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is GreatHorn's official website and social media links?

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GreatHorn's official website is greathorn.com and has social profiles on LinkedIn and Crunchbase.

How much revenue does GreatHorn generate?

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As of October 2026, GreatHorn's annual revenue is estimated to be $1M - $10M.

What is GreatHorn's NAICS code?

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GreatHorn's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does GreatHorn have currently?

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As of October 2026, GreatHorn has approximately 7 employees across 1 continents, including North America. Key team members include Chief Executive Officer: M. C. M., Chief Executive Officer: K. O. B. and Chief Executive Officer & Co-Founder: K. O. Explore GreatHorn's employee directory with LeadIQ.

What industry does GreatHorn belong to?

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GreatHorn operates in the Computer and Network Security industry.

What technology does GreatHorn use?

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GreatHorn's tech stack includes AdRoll, Twitter Ads, Hotjar, HubSpot Analytics, iCIMS, ZoomInfo, Intercom and Piwik.

What is GreatHorn's email format?

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GreatHorn's email format typically follows the pattern of FLast@greathorn.com. Find more GreatHorn email formats with LeadIQ.

How much funding has GreatHorn raised to date?

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As of October 2026, GreatHorn has raised $22M in funding. The last funding round occurred on Feb 23, 2022 for $103K.
GreatHorn logo

GreatHorn

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.

Section iconCompany Overview

Phone number
NAICS Code
5415 - Computer Systems Design and Related Services
Employees
2-10

Section iconFunding & Financials

  • $22M

    GreatHorn has raised a total of $22M of funding over 5 rounds. Their latest funding round was raised on Feb 23, 2022 in the amount of $103K as a Venture Round.

  • $1M - $10M

    GreatHorn's revenue is estimated to be in the range of $1M - $10M

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