Aqua Security has raised $25m in Series B funding, taking its total backing to $38.5m.
Founded in 2015, Tel-Aviv-based Aqua focuses solely on container security and gained attention last year when Microsoft led a $9m funding round through its Microsoft Ventures start-up fund.
Other notable investors include Shlomo Kramer - the man behind the likes of Check Point and Cato Networks.
The most recent round was led by Lightspeed Venture Partners.
Dror Davidoff, CEO at Aqua, said: "We are thrilled to have Lightspeed on board for our next phase of growth.
"This investment is a huge vote of confidence in Aqua's market leadership, vision, and execution.
"We look forward to fast-tracking our product development and global market presence as we continue on our quest to provide better, seamless application security for the cloud-native era."
Aqua is currently distributor by Securicom in the UK and earlier this year Davidoff told CRN of plans for its first UK office, which has since opened as the vendor hunts for partners.
Aqua claims to already have dozens off Global 1000 customers, including two of the top 10 financial companies and three of the top 10 software companies.
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