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ThreatLocker announced a $115 million Series D funding round on April 24, 2024. Existing investor General Atlantic led the round, with StepStone Group and the D. E. Shaw group participating. The company said it would use the capital for product innovation and international expansion.
Who invested in ThreatLocker’s Series D?
General Atlantic led the financing. StepStone Group and the D. E. Shaw group also participated, according to ThreatLocker’s April 24, 2024 announcement. The release identifies General Atlantic as an existing investor.
SecurityWeek reported that the round brought ThreatLocker’s cumulative funding to nearly $240 million. That total is SecurityWeek’s reporting, rather than a figure stated in the company’s announcement. The preceding Series C was $100 million, raised in April 2022, according to SecurityWeek’s coverage.
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The company said the investment would support continued product development and expansion into international markets. CEO and co-founder Danny Jenkins said: “We believe this new injection of capital will enable us to continue to develop ZT products and grow ThreatLocker’s market presence.”
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What security products did ThreatLocker offer in 2024?
ThreatLocker described its offering as a Zero Trust security suite for servers and endpoints. Its April 2024 release named these controls and services:
- Default Deny Application Control
- Ringfencing
- Storage Control
- Privileged Access Management
- Network Access Control
- Endpoint Detection & Response (EDR)
- Managed Detection & Response (MDR)
In broad terms, allowlisting and default-deny controls are intended to limit which software can run, while Ringfencing and the other controls govern application activity, storage, privileges, and network access. SecurityWeek’s contemporary account also described allowlisting, threat detection, storage and privilege-elevation controls, and firewall functions.
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ThreatLocker said its products block untrusted software and help address ransomware and exploits of known and unknown application vulnerabilities. Those are vendor claims; the announcements and contemporaneous coverage cited here do not provide independent product testing or verification of security outcomes.
What growth figures did ThreatLocker report with the announcement?
In its 2024 release, ThreatLocker said revenue had doubled and its workforce had grown by 50% in the preceding year. It also reported working with thousands of partners and protecting more than 50,000 organizations. These are company-reported figures tied to the announcement period, not independently audited or validated numbers in the sources cited here.
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Is the Series D ThreatLocker’s latest funding round?
No. The $115 million Series D is a historical 2024 financing announcement. ThreatLocker announced a $190 million Series F on July 29, 2026, led by Elephant, with continued support from D. E. Shaw Ventures and Arthur Ventures and a new investment from Koch Disruptive Technologies. The company said the later round would support AI security, platform development, and international growth. Its Series F announcement also reported more than 70,000 organizations worldwide; that company-reported figure belongs to the 2026 announcement and should not be confused with the 2024 figure.
The later announcement described platform development spanning endpoints, networks, and cloud resources, including controls the company says address AI-related risks. This is subsequent product context, not a description of what the Series D release listed. See ThreatLocker’s July 29, 2026 Series F announcement.
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