Fireglass

Fireglass developed a threat isolation platform that eliminates web, email, and document-borne malware and phishing threats.

Cybersecurity
Acquired
Tel Aviv, Israel Founded 2013
Last updated 2026-08-06
Total raised
$20.0M
Stage
Founded
2013
Headcount
40
HQ
Tel Aviv, Israel
Sector
Cybersecurity

About

Fireglass was an Israeli cybersecurity startup that developed a threat isolation platform. The company's technology created virtual websites, allowing users to browse content without fear of viruses or malware entering the corporate network. It aimed to eliminate all web attack surfaces, including websites, emails, and documents, by isolating potentially harmful content in a secure environment. Fireglass's solution was designed to prevent ransomware, malware, and phishing threats in real-time.

Funding history · 1 round · $20.0M total

1 event/round · $20.0M Total Funding: $20.0M in Private Equity

Headcount over time

40 employees (2026-09) · 1 point
40 40 2026-09

Offices

Tel Aviv, Israel · HQ / main office

Q&A

What is Fireglass's primary business activity?
Fireglass developed a threat isolation platform that eliminates web, email, and document-borne malware and phishing threats.
When was Fireglass founded?
Fireglass was founded in 2013.
What was the total amount of funding Fireglass raised before its acquisition?
Fireglass raised a total of $20,000,000.
Which investors participated in Fireglass's A Round funding?
Fireglass's A Round funding in January 2016 included investments from Norwest Venture Partners and Lightspeed Venture Partners.
When was Fireglass acquired and for what amount?
Fireglass was acquired in July 2017 for $250,000,000.
Who are the founders of Fireglass?
The founders of Fireglass are Guy Guzner (CEO) and Dan Amiga (CTO).
What is Fireglass's primary sector?
Fireglass's primary sector is Cybersecurity.
What kind of technology did Fireglass develop?
Fireglass developed a threat isolation platform that created virtual websites, allowing users to browse content without malware entering the corporate network.

Team · 2

Guy Guzner
Founder · CEO
Dan Amiga
Founder · CTO

Sectors & technology

Primary sector
Cybersecurity
Technologies
Target customers
Business model
B2B
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)

External links

Websitefire.glass/

Identifiers & details

Legal nameFireglass
Founded2013
Employees (exact)40

Acquisitions & public offerings

Acquired by 2017-07 $250.0M

Radar intelligence

Patents

EPO4