Product Reports Resources Pricing Login Book a demo
COMPANY PROFILE

Menlo Security

Explore full profile

Eliminate web malware and stop spear phishing attacks with our secure isolation platform, removing malware and ransomware risks from email, web and document downloads

Mountain View, United StatesFounded 2013Cybersecurity
Valuation $500M–1B Last recorded · 2020
Headcount 500–1k Current team size
Total funding $100–500M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Menlo Security and the history behind them.

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 data

At 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

Funding history

8 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
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 —
Showing the latest 2 of 8 recorded eventsBook a demo for the full funding history →

Growth signals

Menlo Security website traffic

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.

Latest monthly visits490K 3-month web change+19.5% 1-year team growth+4.8%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

CompanyHeadquartersStatusEmployeesTotal fundingValuation
CyberOwlOffers an early warning system for cyber attacks through real-time monitoring of high value targets for malicious behavior London, United Kingdom Acquired 65 $9M $20M
Huawei Symantec TechnologiesLeading provider of network security and storage appliance solutions Chengdu, China Acquired
EfficientIPSolutions to address organizations' needs to drive business efficiency through network services availability, security La Garenne-Colombes, France Acquired
ShieldIOTShieldIOT delivers innovative cybersecurity solutions that protect edge devices from security threats and operational risks Kfar Saba, Israel Operational
DB NetworksPredictive database security using machine learning analytics San Diego, United States Operational
SynackA human-powered security solution offering scalable continuous testing for enterprise applications and networks Redwood City, United States Operational
QualysThe Qualys Cloud Platform and integrated suite of solutions helps businesses simplify security operations and lower the cost of compliance by delivering critical security intelligence on demand and automating the full spectrum of auditing, compliance Redwood City, United States Operational
ImpervaProvides cyber security solutions that protect business-critical data and applications San Mateo, United States Acquired
Showing 8 of the closest matchesCompare every metric →

Investors

15 investors on the cap table

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

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
Team profiled 35 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 8 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
17 countries with
team presence
🇺🇸 United States43%
🇮🇳 India18.6%
🇬🇧 United Kingdom14.9%
🇸🇬 Singapore7.6%
🇨🇦 Canada5.5%
Top 5 of 17 shown

Market sentiment

Posts on X, past 7 days

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

See Menlo Security’s full profile on Dealroom

Request a free trial to see the complete deal history, financials, people graph and growth signals.

Takes under a minute. Already use Dealroom? Log in.