GreatHorn
Techstars '15Belmont, US · Founded 2015 · Delaware corporation · 6 known investors
Cybersecurity
Founders & leadership
GreatHorn was founded in 2015 by Kevin O'Brien and Raymond Wallace.
KO

Kevin O'BrienCo-founder
RW
Raymond WallaceCo-founder
Investors · 6
Reported raises · per SEC filings
Form D private placements$22.5M disclosed across 4 of 5 rounds · 2015–2019
▶$13.2MraisedJul 2019 · 6 investors · Other TechnologyRule 506(b)
▶$13.2MraisedJul 2019 · 6 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Raymond WallaceExecutive Officer, Director
- Greg DraconDirector
- Raju RishiDirector
- Kevin O'BrienExecutive Officer, Director
- Offering amount
- $13.2M
- Amount sold
- $13.2M
- Proceeds to insiders
- $250K
- First sale
- Jun 2019
- Incorporated
- Corporation, Delaware, 2015
- Federal exemptions
- 06b
▶$461.9KraisedJun 2019 · 3 investors · Other TechnologyRule 506(b)
▶$461.9KraisedJun 2019 · 3 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Kevin O'BrienExecutive Officer, Director
- Raymond WallaceExecutive Officer, Director
- Nicole GlarosDirector
- Greg DraconDirector
- Offering amount
- $500K
- Amount sold
- $461.9K
- First sale
- May 2019
- Incorporated
- Corporation, Delaware, 2015
- Federal exemptions
- 06b
▶$6.3MraisedJun 2017 · 7 investors · Other TechnologyRule 506(b)
▶$6.3MraisedJun 2017 · 7 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Greg DraconDirector
- Ari NewmanDirector
- Kevin O'BrienExecutive Officer, Director
- Raymond WallaceExecutive Officer, Director
- Offering amount
- $6.3M
- Amount sold
- $6.3M
- First sale
- Jun 2017
- Incorporated
- Corporation, Delaware, 2015
- Federal exemptions
- 06b
▶$2.5MraisedMar 2016 · 10 investors · Other TechnologyRule 506(b)
▶$2.5MraisedMar 2016 · 10 investors · Other Technology
Rule 506(b)Officers, directors & promoters on the filing
- Raymond WallaceExecutive Officer, Director
- Ryan ArmbrustDirector
- Kevin O'BrienExecutive Officer, Director
- Alex IskoldDirector
- Offering amount
- $2.5M
- Amount sold
- $2.5M
- First sale
- Mar 2016
- Incorporated
- Corporation, Delaware, 2015
- Federal exemptions
- 06b
▶$500KofferedJun 2015 · ComputersRule 506(b)
▶$500KofferedJun 2015 · Computers
Rule 506(b)Officers, directors & promoters on the filing
- Kevin O'BrienExecutive Officer, Director
- Raymond WallaceExecutive Officer, Director
- Offering amount
- $500K
- Incorporated
- Corporation, Delaware, 2015
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 4
by search overlapillusive networks10 shared keywordsProofpoint offers a suite of enterprise security and compliance products that protect people, email, cloud apps, and data from human-centric cyber threats using machine learning and AI. Its tools also cover data loss prevention, communications archiving, e-discovery, compliance supervision, identity threat detection, and security awareness training.
Trend Micro8 shared keywordsTrendAI (Trend Micro) provides enterprise cybersecurity through its TrendAI Vision One platform, which unifies endpoint, network, cloud, and identity security with XDR visibility, threat intelligence, and AI-focused threat protection. It serves enterprise customers across 185 countries, including hybrid cloud, virtualized data center, and modern SOC environments.
Knowbe48 shared keywordsKnowBe4 provides security awareness training, simulated phishing attacks, and AI-powered human risk management for organizations worldwide. The platform helps enterprises secure both human employees and AI agents against cybersecurity threats through attack simulation, training, and behavioral security interventions.
Abnormal Ai7 shared keywordsAbnormal is an AI-native cybersecurity company that uses behavioral AI to detect and prevent email-based attacks and anomalous threats. The platform protects enterprises, including over 25% of the Fortune 500, by analyzing human behavior patterns to identify attacks that exploit them.
Companies competing with GreatHorn for the same Google search keywords, organic and paid, via search-intersection analysis.
Frequently asked questions
- Who founded GreatHorn?
- GreatHorn was founded by Kevin O'Brien, Raymond Wallace in 2015.
- Who are GreatHorn's investors?
- GreatHorn's investors include .406 Ventures, Techstars, Uncork Capital, Zelkova Ventures, 2048 Ventures, RRE Ventures.
- How much funding has GreatHorn raised?
- GreatHorn has disclosed $22.5M raised across 4 of its 5 known rounds.
- Where is GreatHorn headquartered?
- GreatHorn is headquartered in Belmont, US.




