Expel

We provide Managed Detection & Response (MDR) security services. Our approach uses human expertise supported by AI to operate within your existing security tools, without needing new agents or forced tool changes. Our AI filters out 99.9% of security alert noise, allowing our analysts to focus on real threats. We respond to high-severity incidents in under 20 minutes.

We offer the Expel Workbench™ platform, which gives you visibility into alerts, investigations, and response actions. Our services also include managed phishing, incident validation and notification, remediation guidance, advanced threat detection, and ²⁴⁄₇ monitoring, investigation, and response for security devices.

Expel was founded in 2016. The Expel Workbench and our first customer came in June 2017, and our managed phishing service launched in October 2020. We expanded to EMEA in October 2022 and relaunched our partner program in September 2023. In the Forrester Wave™ MDR Services, Q1 2025 report, we were named a Leader with strong ratings for cloud and identity detection, dashboards, reporting, and our roadmap.

Our mission is to evolve security operations by providing practitioner-led, AI-augmented solutions that adapt to our customers, integrate easily, and deliver measurable results. We believe in “measurable outcomes over marketing claims,” aiming to make security operations flexible and adaptive, giving every organization the protection and transparency it needs.

We operate based on four core values:

• Treat people like people: We build trust through honesty and authenticity, encouraging personal responsibility and strong performance.
• Get it done. Do it together: We promote collaboration and shared effort to achieve collective goals.
• Improve continuously: We encourage experimentation, curiosity, and trying new approaches while measuring outcomes.
• Intentionally transparent: We provide the information needed for decision-making, while also recognizing reasonable boundaries to transparency.

These values reflect our beliefs that AI should enhance, not replace, SOC analysts; that complete security coverage can be achieved with existing tools; that effective security comes from partnership, not just transactions; and that transparency means direct access to our SOC, not just filtered updates.

We are a remote-first company with employees across the United States and EMEA, though our headquarters are in Herndon, Virginia. We have 201-500 employees. Our culture emphasizes transparency, trust, and avoiding corporate jargon. We were founded by security practitioners who built the company on these principles, fostering collaboration, continuous improvement, and smart execution.

Our work environment supports employees with accessible executive leadership, encouraging self-care, time off, and ongoing learning. Our teams are high-performing and understand the importance of personal and family priorities. We are committed to being “Better When Different,” creating a safe environment that actively addresses racism and discrimination, and ensuring everyone is treated with kindness and equality. We actively hire and develop talent from underrepresented groups, including women, Black, Latinx, Indigenous, multiracial individuals, LGBTQ+ people, people with disabilities, and veterans.

We support several Employee Resource Groups (ERGs) to promote diversity, equity, and inclusion:

• BOLD: For Black Expel employees and allies, focused on inclusivity and professional development.
• WE: Empowers women through a supportive community.
• The Treehouse: An LGBTQ+ ERG promoting education, awareness, and authenticity.
• Connection: Focuses on mental well-being, educating and destigmatizing mental health issues.

We offer a range of employee benefits, which vary by region.

For US Employees:

• Unlimited vacation, including personal days and an annual company-wide restorative day. We encourage employees to take time off.
• 401(k) plan with a 100% match up to the first 3% of contributions.
• Comprehensive healthcare, including dental and vision, with 100% coverage of medical deductibles.
• Flexible work hours and locations.
• One paid conference per year for professional development.
• Parental leave: 24 weeks for birth, adoption, or foster parenting.
• Eligibility for equity and bonuses.
• Professional development, including conferences, training, and certifications.
• Mentorship.
• Company stock options.
• Competitive base salary.
• We provide reasonable accommodations for applicants with disabilities.

For UK Employees:

• Group Income Protection: If you’re unable to work due to illness or injury for over 13 weeks, this scheme provides 75% of your basic annual salary.
• Private Medical Insurance (PMI): Eligible from day one, covering single employee coverage through Zedra.
• Group Life Assurance (GLA): Provided from day one, offering 4x your annual salary.
• Pension Scheme: Through Royal London, with a minimum employee contribution of 4% and a maximum employer contribution of 5%.

For Ireland Employees:

• Group Income Protection: If you’re unable to work due to illness or injury for over 13 weeks, this scheme provides 75% of your basic annual salary.
• Private Medical Insurance (PMI): Eligible from day one, covering single employee coverage through Atwood.
• Dental & Eyecare: Employee-only coverage.
• Pension Scheme: Contributions start from your first day of employment through Irish Life.