COMPANY PROFILE

GreatHorn

Cybersecurity platform that detects and prevents spear phishing attacks and credential theft in cloud and on-premise infrastructure. Techstars '15.

Denver, United StatesFounded 2015Cybersecurity

Valuation $50–100M Last recorded · 2019

Headcount <100 Current team size

Total funding $10–50M Disclosed equity funding

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About GreatHorn

GreatHorn operates in the cybersecurity market, focusing on advanced email security solutions. The company serves mid to large-sized enterprises, particularly those with over 250 users, providing tools to detect and respond to Business Email Compromise (BEC) and sophisticated phishing attacks. GreatHorn's business model revolves around a subscription-based service, offering a risk-free trial period to attract new clients. The platform uses machine vision to analyze URLs for anomalous content and provides educational smart banners and links to help users understand and mitigate risks. Revenue is generated through subscription fees for its API-based solution, which combines powerful threat analysis with user-friendly features. The company aims to reduce remediation time and improve overall email security for its clients.

MoreLess Source: Dealroom company data

At a glance

Status: Operational
Founded: 2015
Headquarters: Denver, United States
Employees: 7
Open positions: None listed
Dealroom signal: 65.5/100
Industry: Security
Sub-industry: Cloud & Infrastructure
Sector: Risk Management, Analytics, Anti-Phishing, Cybersecurity, Hard Tech, DT and LS
Technology: Artificial Intelligence, Hardware, Deep Tech, Machine Learning
Client focus: b2b
Links: Website LinkedIn X

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Funding history

4 recorded events

Company financing events and reported valuations.

Deal type	Date	Amount	Valuation	Investors	Source
EARLY VC✓Equity / VC	Jun 2019	$13M	$52M	Uncork Capital · V1.vc · .406 Ventures · Techstars	—
SERIES A✓Equity / VC	Jun 2017	$6.3M	$25M	ff Venture Capital · Uncork Capital · RRE Ventures · .406 Ventures	—

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Growth signals

GreatHorn website traffic

Latest recorded traffic for GreatHorn is 3.4K monthly website visits, down 5.6% over the last three months. GreatHorn's team declined 22.2% over the past year.

Latest monthly visits3.4K 3-month web change-5.6% 1-year team growth-22.2%

Monthly website visitsApr 2016–Jul 2026

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