Acquisition
Jan 2022ThreatLocker acquired Third Wall/Thirdwall, which developed an automated Windows security lockdown plug-in.
SourceCompany research
Public company, workplace, funding, and market signals
Updated Aug 16, 2026
Overview
ThreatLocker is a privately held cybersecurity company founded in Orlando in 2017. It provides a deny-by-default Zero Trust platform intended to prevent ransomware, unauthorized software execution, privilege abuse, and lateral movement across endpoints, networks, storage, and cloud applications.
Primary product
ThreatLocker Zero Trust Platform, including Application Control/Allowlisting, Ringfencing, Storage Control, Elevation Control, Endpoint Network Access Control, Detect/EDR, MDR, Zero Trust Network Access, and Zero Trust Cloud Access.
Founded
2017
Headquarters
1901 Summit Tower Blvd, Orlando, Florida 32810, United States
Team size
Approximately 576-700+; public estimates and company statements vary by date. ThreatLocker reported more than 600 team members in 2025, while a company-data estimate reported 576.
Industry
Cybersecurity
Sub-industry
Endpoint security, application control, Zero Trust access, managed detection and response
Offices
Orlando/Maitland, Florida, United States
Dublin/Blanchardstown, Ireland
Brisbane, Queensland, Australia
Dubai, United Arab Emirates
Chicago, Illinois, United States
Virginia, United States
Toronto, Canada
Saudi Arabia
Business model
B2B SaaS
Enterprise cybersecurity software
Managed security services
Channel/MSSP and MSP sales
Funding
Stage
Series F / late-stage venture growth
Total raised
$500M
Latest round
Series F · Jul 2026
Latest amount
$190M
Jul 2026 · Elephant
Apr 2025 · Arthur Ventures
Apr 2024 · General Atlantic
Oct 2022
Apr 2022 · General Atlantic
Apr 2021 · Elephant Venture Capital
Aug 2020 · Arthur Ventures
Mar 2018
Sep 2017
People & investors
Leadership
Chief Executive Officer and Co-Founder
Sami Jenkins
Chief Operating Officer and Co-Founder
John Carolan
Chief Quality Assurance Officer and Co-Founder
Michael Jenkins
Chief Technology Officer
Rob Allen
Chief Product Officer
Ross McIntosh
Chief Financial Officer
Martin Olivo
Chief Information Officer
Ryan Bowman
Vice President of Solutions Engineering
Matthew Van Til
Vice President of Sales
Oliver Plante
Vice President of Help Desk/Support
Seamus Lennon
Vice President of EMEA Operations
Aliona Groh
Senior Vice President of Marketing
Heather Hartland
Vice President of Experiential Marketing
Work & culture
The company describes a fast-paced, growth-oriented environment with substantial employee autonomy, direct access to leadership, technical challenges, and a strong customer-support focus. Public reporting indicates rapid hiring and expansion, while leadership has acknowledged that earlier hypergrowth created infrastructure and organizational strain.
Compensation
Public job-search materials and company pages reviewed did not provide reliable, broad compensation ranges. Bonuses are mentioned as an employee perk; role-specific salary information may appear in individual job postings.
Benefits
Career advancement and professional-development opportunities
Equal-opportunity hiring and an emphasis on employee voice
Bonuses
Generous benefits, with details varying by role and location
Stocked break areas and company celebrations
Annual employee car giveaways and performance trips or vacations
Product & market
Pricing
Quote-based pricing tailored to endpoint count, application landscape, and required controls; ThreatLocker also advertises a 30-day free trial and customized demos.
Differentiators
- —Deny-by-default or allow-by-exception security model rather than relying primarily on detection after execution
- —Combines application allowlisting, Ringfencing, privilege/elevation, storage, network, cloud-access, and detection controls in one platform
- —Granular control over what applications can execute and what applications can access
- —Centralized portal and policy management across endpoints, offices, remote workers, data centers, and cloud services
- —Device-validated access intended to block credential theft, token replay, and unauthorized remote access
- —Strong Cyber Hero support and implementation assistance, including rapid response claims
Technology
Endpoint allowlisting/application control
Ringfencing
Endpoint firewall and network control
Storage control
Elevation control
EDR/Detect
MDR
Zero Trust Network Access
Zero Trust Cloud Access
Centralized configuration management
Microsoft Windows endpoint security
Microsoft Defender configuration management
Cloud and SaaS access brokering
Customers
Emirates
JetBlue Airways
Indianapolis Colts
US itek
Carahsoft
Financial institutions
Healthcare organizations
Airlines
Managed service providers and MSSPs
Government, education, manufacturing, and other enterprise organizations
Competitors
CrowdStrike
SentinelOne
Microsoft Defender for Endpoint
Sophos
Huntress
Carbon Black
Malwarebytes
CyberArk
Cylance
Trend Micro
Scale & contact
Estimated revenue
Approximately $30M-$40M according to one company-data estimate; other public interviews cite more than $100M in revenue, and third-party estimates range as high as approximately $150M-$160M. A conservative public-evidence range is $30M-$160M, with substantial source inconsistency.
Estimated monthly visits
400K
Traffic estimate as of Jun 2026
Signals & risks
Acquisition
Jan 2023ThreatLocker acquired the assets of HyperQube Technologies and brought HyperQube CEO Craig Stevenson into a ThreatLocker operations leadership role.
SourceOther
Jan 2021Company leadership acknowledged that rapid 2021 growth caused serious infrastructure, sales-management, support, and organizational strain. This is a historical execution-risk signal rather than a reported shutdown or layoff.
SourceOther
Jan 2025ThreatLocker has discussed a potential IPO as early as 2027, contingent on reaching approximately $500 million in annual revenue and favorable market conditions. This is a stated plan, not a filing or commitment.
SourceLatest news
ThreatLocker/PR Newswire · Jul 2026
ThreatLocker announced a $190 million Series F led by Elephant, with continued participation from D. E. Shaw Ventures and Arthur Ventures and a new investment from Koch Disruptive Technologies. The company said the capital will support AI-security controls, platform development, international expansion, and a new U.K. office.
ThreatLocker · Mar 2026
ThreatLocker announced Zero Trust Network Access and Zero Trust Cloud Access capabilities that validate users and devices before allowing access to internal systems and SaaS services, including Microsoft 365, Salesforce, Asana, Google Workspace, and GitHub.
ThreatLocker/Forrester Consulting · Mar 2025
ThreatLocker reported results from a commissioned Forrester study based on interviews with five decision-makers across four organizations. The study modeled 184% ROI, $4.15 million NPV, reduced addressable security incidents, labor-efficiency gains, and avoided licensing costs.
CRN · Jan 2025
CEO Danny Jenkins described an expanded product roadmap covering patch management, web filtering, cloud control, a user application store, and analytics. He also said the company was considering an IPO as soon as 2027 after reaching approximately $500 million in annual revenue.
ThreatLocker · Apr 2024
ThreatLocker announced a $115 million Series D led by General Atlantic, with participation from StepStone Group and D. E. Shaw Group. The company said the funds would support product innovation, international expansion, EDR/MDR development, and broader adoption through enterprise and MSP channels.
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