How much funding has GreatHorn raised?

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

Who are GreatHorn's competitors?

Egress, MX Layer, and Barracuda Networks, Inc. are among the closest in Email & Messaging Security. The full competitive set, with overlap scoring, is in the platform.

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 total funding, employs about 7 people, and was acquired by SF2 GH Holdings in 2022.

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updated Aug 22, 2026

Momentum

26 out of 100.

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Products

What GreatHorn sells.

In the platform

The other 440 data points.

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

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FAQ

Common questions about GreatHorn.

How much funding has GreatHorn raised?: GreatHorn has raised $21.93M in total. Its most recent round was a Venture Round in February 2022.
How many people work at GreatHorn?: About 7.
Who are GreatHorn's competitors?: Egress, MX Layer, and Barracuda Networks, Inc. are among the closest in Email & Messaging Security. The full competitive set, with overlap scoring, is in the platform.