Expel is a leading managed detection and response (MDR) provider, offering 24/7 cybersecurity services to help organizations minimize business risk. Their approach combines advanced technology with human expertise to rapidly detect, understand, and remediate security threats across cloud, on-premises, and SaaS environments. Expel aims to make security easy to understand, use, and continuously improve, acting as a transparent extension of their clients' security teams.
Serves as the central hub for Expel's operations, including its primary Security Operations Center (SOC), research and development, engineering, sales, marketing, and corporate administration.
Expel’s Herndon office is designed with a focus on transparency and collaboration, featuring open workspaces, numerous meeting and breakout rooms, a dedicated training center, and advanced facilities for its 24/7 Security Operations Center (SOC). The environment is tailored to support its 'Expletive' work culture and agile operations.
Expel is known for its transparent, employee-focused, and collaborative work culture, often referred to as the 'Expletive' culture. They emphasize continuous learning, empowerment, psychological safety, and a 'no-blame' approach to incident response. The HQ environment reflects this with open layouts and spaces designed for teamwork and well-being.
The Herndon headquarters is critical as the nerve center for Expel's global security operations, product development, and strategic decision-making. It embodies the company's commitment to innovation and its unique approach to cybersecurity services.
Expel provides its managed detection and response (MDR) services to customers globally. While headquartered in Herndon, Virginia, and with a key office in London, UK, for EMEA operations, Expel supports its international client base through its 24/7 Security Operations Centers (SOCs) and a significant distributed workforce across North America, the UK, and other regions. This model allows for continuous security monitoring and rapid response regardless of customer location.
12950 Worldgate Dr, Suite 500
Herndon
VA
USA
Address: c/o Cubiks (UK) Ltd, The Leather Market, Unit 10.G.03, 11/13 Weston Street, London, SE1 3ER
To provide localized support and services to Expel's growing customer base in the EMEA region and to spearhead regional business development and partnership efforts.
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As of April 2025, Expel' leadership includes:
Expel has been backed by several prominent investors over the years, including:
In the past 12 months (from mid-2023 to mid-2024), Expel's key executive change involved the appointment of Peter Silberman as Chief Technology Officer. The broader executive leadership team has maintained stability, focusing on continued growth and service expansion.
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Expel commonly uses professional email formats for its employees. The most frequently observed patterns are [first].[last]@expel.com and [first_initial][last]@expel.com. These formats are typical for companies in the technology and cybersecurity sectors.
[first].[last]@expel.com or [first_initial][last]@expel.com
Format
jane.doe@expel.com or jdoe@expel.com
Example
90%
Success rate
MSSP Alert • May 15, 2024
Expel announced that its Managed Detection and Response (MDR) platform has achieved FedRAMP High authorization. This certification allows Expel to provide its advanced security services to U.S. federal government agencies that require the highest level of cloud security standards....more
Business Wire (Expel Press Release) • March 12, 2024
Expel was recognized as a Leader in The Forrester Wave™: Managed Detection And Response, Q1 2024 report. The independent research firm's report highlighted Expel's strong current offering, strategy, and market presence in the MDR space, citing its transparent and customer-centric approach....more
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