GreatHorn
OverviewSuggest Edit
GreatHorn develops a cyber security platform designed to prevent phishing attacks for cloud-based communication platforms. The Company's platform provides enterprises with comprehensive, cloud-native protection against message-based threats, driven by machine learning and automated response capabilities, enabling organizations to secure their communications across multiple channels.
| Type | Private | |
| Founded | 2015 | |
| HQ | Waltham, MA, US | Map |
| Website | greathorn.com | |
| Employee Ratings | More |
Latest Updates
| Employees (est.) (Apr 2021) | 51 | (+5%) |
| Cybersecurity rating | B | More |
Key People/Management at GreatHorn
Kevin O'Brien
CEO & Co-Founder
Raymond Wallace
CTO and Co-Founder
James Luciani
Vice President, Engineering
Michael Mayer
Vice President, Sales
Ann Sharon
Vice President, Operations
Matt Petrosky
Vice President, Customer Experience
GreatHorn Office Locations
GreatHorn has an office in Waltham
Waltham, MA, US (HQ)
260 Charles St #300
Waltham, MA, US
1075 Main St #210
GreatHorn Financials and Metrics
Summary Metrics
Founding Date | 2015 |
GreatHorn total Funding | $21.8 m |
GreatHorn latest funding size | $13 m |
Time since last funding | 2 years ago |
GreatHorn investors | Uncork Capital, Techstars, Zelkova Ventures, .406 Ventures, ff Venture Capital, RRE Ventures, Right Side Capital Management, Walter Winshall, Techstars Ventures, v1.vc |
GreatHorn's latest funding round in June 2019 was reported to be $13 m. In total, GreatHorn has raised $21.8 m
GreatHorn Cybersecurity Score
GreatHorn Online and Social Media Presence
860 Twitter followers
GreatHorn has 860 Twitter Followers. The number of followers has decreased 0.8% month over month and decreased 3.7% quarter over quarter
GreatHorn's Trends
Twitter Engagement Stats for @greathorn
1.8k
Tweets
821
Following
860
Followers
4
Tweets last 30 days
0.8
Avg. likes per Tweet
50%
Tweets with engagement
GreatHorn News and Updates
June 27, 2019
Cloud email cybersecurity startup GreatHorn raises $13M
Cloud email cybersecurity startup GreatHorn Inc. today said it has raised $13 million in new funding to expand its existing services in email security. The Series B round was co-led by RRE Ventures and .406 Ventures and included Techstars Ventures, V1.VC and Uncork Capital. Including the new fundin…
June 26, 2019
GreatHorn takes in $13 mln
Waltham, Massachusetts-based GreatHorn, an email security platform provider, has secured $13 million in funding. The lead investors were RRE Ventures and .406 Ventures.
June 26, 2019
GreatHorn nabs $13 million for cloud-hosted email security software
Cloud-hosted email security software provider Greathorn today announced that it has raised $13 million in venture capital.
February 22, 2019
GreatHorn Swoops In From The Cloud To Stop Phishing Attacks
GreatHorn has raised $10 million in venture capital and is in its third consecutive year of triple digit revenue growth, stopping phishing attacks from the cloud.
GreatHorn Blogs
April 28, 2021
Microsoft 365: You’ve Migrated, So What Can You Optimize?
Over the years, Microsoft has made its cloud offerings more attractive, motivating more and more businesses to make the migration from on-premise Microsoft Exchange email servers to cloud-hosted Microsoft 365. This includes improvements to email security functionality: features not available with Mi…
April 21, 2021
Millions of BEC Phishing Attacks Using Amazonses.com Return Path
Many organizations, across many supply chains, use Amazon’s Simple Email Service as an inexpensive and high-scale cloud email service provider. Now, cybercriminals are using return-path features provided by this popular service in order to quickly and effectively bypass traditional email security ch…
April 15, 2021
Tax Season Is Phishing Season for Email Scammers
U.S. taxpayers will again get a reprieve on their April 15 tax filing deadline, this year. If historical trends are any indication, there will be no let-up on the pressure that cybercriminals put on email users each year at tax time. As if the demands of tax season weren’t enough, at this time of ye…
April 07, 2021
Malicious Payloads: Defending Your Organization Beyond “Known Bad” Lists
They’re the worst fear of IT professionals. Literally. According to a recent survey, 52% of cybersecurity pros are most concerned with malicious payloads being delivered via email, and 47% are most concerned with malicious payloads being delivered by a hyperlink within an email. There’s a good reaso…
April 01, 2021
Phishing Phails: When Cybercriminals Don’t Get It “Right”
At GreatHorn, we spend most of our time and effort on the most sophisticated email attacks that are threatening organizations and end users. We’re constantly dealing with new attacks and layering defense strategies to combat them. In our 2021 Email Security Benchmark Report, we detail how mimicking …
March 18, 2021
Phishing Attacks Trends Using ‘Vaccine’ Keyword
Nobody expects scruples from an email phishing attacker. So, it should come as no surprise that these cybercriminals are using the COVID-19 vaccine, a source of hope and maybe even desperate need for millions, as a hook to worm their way into organizations’ systems. Cybercriminals often prey on the …
GreatHorn Frequently Asked Questions
When was GreatHorn founded?
GreatHorn was founded in 2015.
Who are GreatHorn key executives?
GreatHorn's key executives are Kevin O'Brien, Raymond Wallace and James Luciani.
How many employees does GreatHorn have?
GreatHorn has 51 employees.
Who are GreatHorn competitors?
Competitors of GreatHorn include Exabeam, Uplevel Security and Claroty.
Where is GreatHorn headquarters?
GreatHorn headquarters is located at 260 Charles St #300, Waltham.
Where are GreatHorn offices?
GreatHorn has an office in Waltham.
How many offices does GreatHorn have?
GreatHorn has 2 offices.
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