Menlo Security

Menlo Security is a cyber security company that protects organizations from malware.

Menlo Security provides a cloud-based isolation platform that protects organizations from cyberattacks by eliminating the threat of malware from websites, documents, and emails.

Menlo Security was founded in 2013 by Amir Ben-Efraim, Gautam Altekar & Poornima DeBolle. The company is headquartered in Menlo Park, California with operations in Australia, New Zealand, Europe, the Middle East, Africa, and the Asia-Pacific.

Menlo Security's patented Isolation Platform protects organizations from cyber attack by eliminating the threat of malware. 

Menlo Security's Platform isolates and executes all Web content in the cloud, enabling users to safely interact with websites, links and documents online without compromising security.


Menlo Security is trusted by some of the world’s largest enterprises, including Fortune 500 companies and financial services institutions.


Menlo Security is backed by General Catalyst, Sutter Hill Ventures, American Express Ventures, HSBC, & J.P. Morgan Asset Management among others. The company raised $75M in it's latest funding of a "Series D" round on Jul 9, 2019. This brings Menlo Security's total funding to $160.5M to-date.



  • Year founded: 2013
  • Funding Info: $160.5M in 6 Funding Rounds (Last Funding Type: Series D)
  • Yearly Revenue: $10M-$20M (2018)
  • Employee Size: 51-200
  • Business Valuation: NA
  • City/Town: Palo Alto
  • State: California
  • Country: United States
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