UnderDefense
Track on RadarMDR provider with 24/7 SOC, threat hunting, and AWS cloud security services
- Total raised
- —
- Employees
- 143
- Founded
- 2017
- Momentum
- 50
Steady
Data updated July 2026
About
About UnderDefense
At a glance
UnderDefense is a cybersecurity company specializing in Security Operations, founded in 2017 and headquartered in New York, United States. It employs about 143 people and is privately held.
UnderDefense provides managed detection and response (MDR) services combined with security consulting and offensive security testing. The company operates a 24/7 security operations center that monitors client environments across networks, endpoints, cloud infrastructure, and Kubernetes deployments. Their MDR service integrates with existing security tools rather than requiring replacement, offering automated remediation, custom SIEM correlation rules, and Splunk applications tailored to specific client environments. The company delivers security posture assessments, compliance readiness reviews for frameworks including HIPAA, PCI DSS, SOC 2, ISO 27001, and NIST, as well as identity and access management audits. Their services extend to network security reviews, incident response, and continuous compliance monitoring. UnderDefense employs threat hunting teams that work either alongside in-house security staff or as full remote support. As an AWS partner available on AWS Marketplace, UnderDefense provides cloud security services specifically designed for AWS environments, leveraging native AWS security tools like Security Hub, GuardDuty, Config, and CloudTrail. Their AWS-certified professionals assist with secure cloud architecture design and implementation. The company also conducts penetration testing and attack simulations to identify vulnerabilities in both technical systems and human response capabilities. UnderDefense serves organizations ranging from startups building initial cloud environments to large enterprises with mission-critical applications requiring comprehensive security coverage.
Momentum
How UnderDefense is trending
Momentum score
Score history appears once we have at least two monthly snapshots.
Pillar breakdown
Pillar breakdown locked
Growth, Market & Financial sub-scores
Valuation
What UnderDefense is worth
Estimated valuation
Funding
Funding history
See every round, lead investor, and the full capital stack.
Open the full profile on Mandos to see funding history.
Public markets
Stock performance
Privately held
This company isn't publicly traded. Stock performance will appear here after an IPO.
Headcount
Headcount growth
Track hiring velocity, department mix, and seniority shifts.
Open the full profile on Mandos to see headcount growth.
Jobs
Open jobs
Every live posting, hiring pace, and role-level signal.
Open the full profile on Mandos to see open jobs.
Web traffic
Digital presence
Visits trend, bounce rate, engagement, and top countries.
Open the full profile on Mandos to see digital presence.
Tech stack
Technologies
The full stack behind the product — frameworks, clouds, security.
Open the full profile on Mandos to see technologies.
M&A
Acquisitions
Every acquisition this company has made, with dates and amounts.
Open the full profile on Mandos to see acquisitions.
Reviews & sentiment
Employee & product reviews
CEO approval, culture, comp, and detailed product ratings.
Open the full profile on Mandos to see employee & product reviews.
Leadership
Full leadership team
CEO, CxOs, VPs, and every exec with roles.
Open the full profile on Mandos to see full leadership team.
Competitors
Competitive landscape
The complete competitor set with overlap and positioning.
Open the full profile on Mandos to see competitive landscape.
News
Press & news coverage
The most recent mentions, announcements, and media coverage.
Open the full profile on Mandos to see press & news coverage.
Full profile
This public profile is a snapshot
The full Mandos profile of UnderDefenseadds funding rounds & investors, valuation estimates, headcount & hiring trends, technology stack, executive moves, and real-time monitoring.
FAQ
Frequently asked questions about UnderDefense
When was UnderDefense founded?▾
UnderDefense was founded in 2017.
Where is UnderDefense headquartered?▾
UnderDefense is headquartered in New York, United States.
Is UnderDefense public or private?▾
UnderDefense is a privately-held company.
How many employees does UnderDefense have?▾
UnderDefense has approximately 143 employees.
What does UnderDefense do?▾
UnderDefense provides managed detection and response (MDR) services combined with security consulting and offensive security testing. The company operates a 24/7 security operations center that monitors client environments across networks, endpoints, cloud infrastructure, and Kubernetes deployments.…