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Menlo Security
Eliminate web malware and stop spear phishing attacks with our secure isolation platform, removing malware and ransomware risks from email, web and document downloads
About Menlo Security
Menlo Security is a cybersecurity startup that operates in the digital security market. The company provides a unique approach to online security, offering a platform that protects users from online threats, making these threats irrelevant to the users and their businesses. The platform works invisibly, safeguarding users wherever they go online, thus eliminating the constant barrage of security alerts.
Menlo Security serves a broad range of clients, including businesses that need to secure their online operations. The company's business model revolves around providing cloud-based browser security that prevents phishing and malware attacks on any browser and any device across a client's hybrid enterprise. This means that clients can safely navigate the internet without the fear of falling victim to cyber-attacks.
The company also offers Menlo Labs, a collective of elite security researchers that provide insights, expertise, context, and tools to help customers secure their online communications and collaborations. Menlo Labs also shines a light on known and unknown threats, providing an extra layer of security for clients.
One of Menlo Security's standout products is the HEAT Shield, an industry-first AI phishing and ransomware protection solution. This solution uses deep web session analysis combined with AI to block new and unseen phishing attacks before they can penetrate a client's network.
Menlo Security generates revenue by charging clients for access to its security platform and services. The company also offers a HEATcheck assessment that shows how evasive attacks can bypass typical security measures, providing clients with a clear understanding of their security vulnerabilities.
Source: Dealroom company dataAt a glance
- Status
- Operational
- Founded
- 2013
- Headquarters
- Mountain View, United States
- Employees
- 463
- Open positions
- 2
- Dealroom signal
- 76.6/100
- Industry
- Security
- Sub-industry
- Device security & Antivirus
- Sector
- Risk Management, Network Security, Appliances, Spinout, Cybersecurity
- Client focus
- b2b
- Investment activity
- 1 company, latest Feb 2025
- Capital deployed
- —
- Preferred round
- ACQUISITION
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES EOther financing | Nov 2020 | $100M | $400M | Vista Equity Partners · Neuberger Berman · JP Morgan | — |
| SERIES DOther financing | Jul 2019 | $75M | $300M | Sutter Hill Ventures · Engineering Capital · Osage University Partners · JP Morgan | — |
Growth signals
Latest recorded traffic for Menlo Security is 490K monthly website visits, up 19.5% over the last three months. Menlo Security's team grew 4.8% over the past year.
Open positions
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed2 investors entered at this stage
Osage University Partners
Engineering Capital
Series A4 investors entered at this stage
General Catalyst
Sutter Hill Ventures
JP Morgan
JPMorgan Chase & Co
Series B and later8 investors entered at this stage
Amex Ventures
American Express Ventures
HSBC
Ericsson
Ericsson Ventures
J.P. Morgan Asset Management
Vista Equity Partners
Neuberger Berman
Other known investors1 additional known investor
University of California, Berkeley
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about Menlo Security on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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