ThreatLocker
Cybersecurity software company
From Wikipedia, the free encyclopedia
ThreatLocker is an American cybersecurity company that develops zero trust cybersecurity tools for endpoints and networks, including software as a service products.
- Danny Jenkins
- Sami Jenkins
- John Carolan
| Industry | Cybersecurity |
|---|---|
| Founded | 2017 |
| Founder |
|
| Headquarters | , United States |
Key people | |
Number of employees | 700[2] |
History
ThreatLocker was founded in 2017 by Danny and Sami Jenkins and John Carolan.[3][4] It initially described its products as providing application whitelisting.[5] It expanded into Europe in 2021.[6] That year, the company said it had raised $20 million for expanding its global footprint and product research and development. By 2022, it had raised a total of $100 million. It provided server and endpoint security for 23,000 organizations.[7] ThreatLocker was one of Orlando Business Journal's 2022 Fire Awards honorees and recipient of a 2022 Fire Awards Blazers.[6] It acquired Third Wall that year, a company that made an automated security plug-in that locks down Windows.[8]
In November 2023, ThreatLocker hired Apple security consultant Slava Konstantinov as chief architect of Mac security and development.[9] That year, it opened its Dublin headquarters with approximately 120 positions[4] and acquired the assets of Arlington, Virginia-based software firm HyperQube Technologies. The company named HyperQube chief executive officer Craig Stevenson as director of ThreatLocker Ops.[10] A Series D funding round raised $115 million in 2024.[3] Danny Jenkins said in 2025 that the company was planning an initial public offering within two to three years.[11] ThreatLocker added zero trust network and cloud access products in 2026. This followed the establishment of 14 data centers, 12 of which are based in the United States.[12] It announced $190 million in Series F funding in July 2026.[13][2]
Operations
Co-founders Danny and Sami Jenkins are the company's chief executive officer and chief operating officer, respectively.[14][3] ThreatLocker is based in Orlando, Florida, has European headquarters in Blanchardstown, Dublin,[4] and has offices in the United Arab Emirates and Australia. Its Florida location employs approximately 600 people and there are an additional 100 outside the area, as of 2025.[15] Danny Jenkins said in 2025 that the company had $100 million in revenue, and that revenue had increased 3,000% over a three-year period.[3] It served approximately 50,000 companies as of 2025.[3] Investors include Boston, Massachusetts-based company Elephant VC and Minneapolis, Minnesota-based company Arthur Ventures.[7]
Products and services
ThreatLocker develops cybersecurity tools for networks, endpoints, and cloud systems, including enterprise-level cybersecurity tools for businesses.[4] Their goal is to help businesses control what software can run in their environments and its capabilities.[3]
It uses a zero trust approach, whereby the software only allows specific applications and user activity that have been approved rather than detecting and blocking it.[14] ThreatLocker offerings include allowlisting,[3] ringfencing, network access control, storage control, elevation control, and threat detection.[16] The company expanded in 2026 with zero trust network and cloud access products for customers including managed service providers.[17]
A 2025 TechRadar review of ThreatLocker's endpoint security product said that while it has an "unrefined UI", it is "quick and simple to deploy, and works great".[18] Competitors include SentinelOne, CrowdStrike, Symantec Endpoint Protection, and Microsoft Defender for Endpoint.