What products does GreatHorn sell?

GreatHorn sells GreatHorn Email Security and GreatHorn Mailbox Intelligence.

GreatHorn

Email & Messaging SecurityWaltham, United Statesfounded 2015acquired by SF2 GH Holdings

GreatHorn is a cybersecurity company specializing in Email & Messaging Security, founded in 2015 and headquartered in Waltham, United States. It has raised $21.93M in equity across 5 priced rounds, employs about 7 people, and was acquired by SF2 GH Holdings in 2022.

Explore in Mandos Request full profile

updated Sep 12, 2026

GreatHorn Momentum score

26/ 100

Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.

Growthlocked

Marketlocked

Financiallocked

GreatHorn products

GreatHorn funding

GreatHorn has raised $21.93M in priced equity. Its most recent round was a Venture Round in February 2022.

Equity raised: $21.93M5 priced rounds
Last round: Venture RoundFeb 2022

View the complete funding history

GreatHorn employees and hiring

GreatHorn has about 7 employees.

Employees: 7
Open roles: 0

See hiring trends

GreatHorn competitors

Security professionals most often compare GreatHorn against Abnormal Security on cybersectools.com. The full competitive set, with overlap scoring, is in the platform.

Abnormal Security

by search demand for comparison pages on cybersectools.com, 90 days

View the competitive set with overlap scores

The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in Email & Messaging Security

Common questions about GreatHorn.

How much funding has GreatHorn raised?: GreatHorn has raised $21.93M in priced equity. Its most recent round was a Venture Round in February 2022.
How many people work at GreatHorn?: GreatHorn has about 7 employees.
Who are GreatHorn's competitors?: Security professionals most often compare GreatHorn against Abnormal Security on cybersectools.com. The full competitive set, with overlap scoring, is in the platform.
What does GreatHorn do?: GreatHorn is a cybersecurity company specializing in Email & Messaging Security, founded in 2015 and headquartered in Waltham, United States.
What products does GreatHorn sell?: GreatHorn sells GreatHorn Email Security and GreatHorn Mailbox Intelligence.