Capsule8
Capsule8's Overview
Capsule8 was a cybersecurity company specializing in runtime protection for Linux production environments. Their innovative platform provided high-performance, real-time detection and response to known and unknown threats, zero-day exploits, and unwanted activity without significantly impacting system stability or performance. Capsule8 was recognized for its deep expertise in Linux security and its forward-thinking approach to protecting modern infrastructure. The company was acquired by Sophos in July 2021 to enhance Sophos' Linux server and cloud security offerings.
Where is Capsule8's Headquarters?
HQ Function
Served as the central hub for company leadership, engineering, research and development, sales, and marketing operations, driving the innovation and go-to-market strategy for their Linux security solutions.
Notable Features:
Likely featured a modern, open-plan office space typical of tech startups in redeveloped urban areas, designed to foster collaboration and innovation. Specific architectural details were not widely publicized.
Work Culture:
Capsule8 reportedly fostered a fast-paced, innovative, and highly technical work environment. The culture emphasized deep expertise in cybersecurity, Linux internals, and a passion for solving complex security challenges for enterprise clients.
HQ Significance:
The Brooklyn HQ was significant as the birthplace of Capsule8's pioneering runtime security technology. It served as the nerve center for its product development, strategic partnerships, and growth, ultimately leading to its acquisition by Sophos.
Values Reflected in HQ: The choice of a dynamic and innovative tech hub like Dumbo, Brooklyn, reflected Capsule8's values of cutting-edge technology, agility, and a forward-looking startup mentality.
Location:
While headquartered in New York, Capsule8 served a global clientele, providing its advanced Linux security solutions to organizations across various regions, with a strong focus on North America and Europe. Their market presence was primarily driven by the capabilities of their software platform and distributed through direct sales and strategic partnerships, rather than an extensive network of physical international offices. Support and operations were likely centralized or managed by strategically located distributed team members.
Street Address:
20 Jay Street
City:
Brooklyn
State/Province:
New York
Country:
USA
Capsule8's Global Presence
Buying Intent Signals for Capsule8
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Executive Team of Capsule8
As of April 2025, Capsule8' leadership includes:
Investors of Capsule8
Capsule8 has been backed by several prominent investors over the years, including:
Executive New Hires/Exits in the Last 12 Months
Capsule8 was acquired by Sophos in July 2021 and ceased to operate as an independent entity. Therefore, there have been no new executive hires or exits specifically for Capsule8 in the last 12 months. Key leadership and team members transitioned to Sophos or pursued other opportunities at the time of or following the acquisition.
Technology (Tech Stack) used by Capsule8
Discover the tools Capsule8 uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Capsule8 Email Formats and Examples
Prior to its acquisition by Sophos, Capsule8 likely utilized common corporate email formats based on employee names. While the exact structure could vary, typical patterns for tech companies include combinations of first name, last name, and initials.
[first].[last]@capsule8.com or [first_initial][last]@capsule8.com
Format
jane.doe@capsule8.com or jdoe@capsule8.com
Example
70%
Success rate
News and media
Sophos News • July 6, 2021
Sophos Acquires Capsule8 to Bring Powerful and Cost-Effective Linux Server and Cloud Container Security to its Adaptive Cybersecurity Ecosystem
Sophos announced its acquisition of Capsule8, a pioneer in runtime visibility, detection, and response for Linux production servers and containers. This strategic acquisition was aimed at bolstering Sophos' capabilities in securing Linux environments, a critical component of modern cloud and data center infrastructure, integrating Capsule8's technology into its Adaptive Cybersecurity Ecosystem....more
VentureBeat • November 19, 2019
Capsule8 Raises $30 Million Series C Funding to Expand Real-time Linux Protection
Capsule8 secured $30 million in Series C funding led by Intel Capital, with participation from existing investors. The investment was intended to accelerate product development, expand sales and marketing efforts, and meet the growing global demand for its real-time, zero-day attack detection solutions for Linux systems in enterprise environments....more
Business Wire • January 21, 2020
Capsule8 Recognized as RSA Conference 2020 Innovation Sandbox Contest Finalist
Capsule8 was selected as one of the top 10 finalists for the prestigious RSA Conference 2020 Innovation Sandbox Contest. This recognition highlighted Capsule8's innovative approach to Linux runtime security and its technology for preventing exploits in complex enterprise IT environments....more
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