COMPANY PROFILE · UPDATED 18 NOV 2025

Expel

We create space for you to do what you love about security (even if it's not thinking about it). Managed security: 24x7 detection, response, and resilience. We spot attacks and provide immediate answers. Recommendations are specific and…

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Founded: 2016
Headcount: 382
Open roles: 11
Last raised: Series E · Sign in to view

TECH STACK

How Expel builds

Extracted from Expel’s job postings we’ve tracked

Other Software & Platforms

Adobe Creative Suite×5 reStructuredText×2 CPQ Google Sheets

Security & Identity

EDR×6

Cloud Platforms

Amazon Web Services×2 Amazon EKS Google Cloud Microsoft Azure

AI & Machine Learning

Amazon SageMaker PyTorch TensorFlow

Programming Languages

JavaScript Python

DevOps & Infrastructure

Linux Windows

Design Tools

Figma

Collaboration & Productivity

Google Workspace

Databases

SQL

LEADERSHIP

Founders & key people

Yanek Korff

Chief Officer at Expel

ExpelBerg Capital GroupThreatSwitchNtrepidFireEyeMandiantUniversity of VirginiaWilliam & MaryMcIntire School of Commerce

Justin Bajko

Vice President at Expel

ExpelMandiantNortonLifeLock Inc.Clinical Trial Management ServicesMiniFIBERSGeorgetown University

Dave Merkel

CEO at Expel

ExpelAleph BlogAleph InvestmentsTown of HerndonCFA Institute at BaltimoreFireEyeUniversity of ColoradoUniversity of California DavisJohns Hopkins UniversityBrookfield Central High School

OPEN ROLES

Hiring at Expel

View all 11 open roles →

FUNDING

Capital raised

Total raised

$288,800,000

Investors

Index Ventures Battery Ventures Greycroft

Funding rounds

Series E
$31MOct 3, 2022
Series E
CapitalG, Paladin Capital Group, March Capital, Index Ventures, Scale Venture Partners, Battery Ventures
$31MOct 2, 2022
Series E
$140.3MNov 18, 2021
Series E
CapitalG, Paladin Capital Group, Greycroft, Scale Venture Partners, March Capital, Index Ventures, Cisco Investments
$140.3MNov 17, 2021
Series D
$50MMay 13, 2020
Series D
CapitalG, Paladin Capital Group, Greycroft, Battery Ventures, Scale Venture Partners, Index Ventures
$50MMay 12, 2020
Series C
$40MJun 18, 2019
Series C
Index Ventures, Greycroft, Scale Venture Partners, Paladin Capital Group, NEA - New Enterprise Associates, Battery Ventures
$40MJun 17, 2019
Series B
$20MApr 10, 2018
Series B
Scale Venture Partners, Lightbank, Battery Ventures, Greycroft, NEA - New Enterprise Associates, Paladin Capital Group, Profile Capital
$20MApr 9, 2018
Series A
$7.5MSep 12, 2016
Series A
Paladin Capital Group, Dave Merkel, NEA - New Enterprise Associates, Battery Ventures, Greycroft, Lightbank
$7.5MSep 11, 2016

Funding data via Diffbot

Categorized in

Industry

Cybersecurity Threat Detection & Response

Investors

Index Ventures Battery Ventures Greycroft

Industries

Software Companies Software As A Service Companies

Tech Stack

Mysql Php Go Python React Node.js Typescript Redis Wordpress Google Cloud Platform Microsoft Azure Nodejs

LOCATIONS

Where they work

Expel Headquarters Location

12950 Worldgate Dr suite 200, Herndon, VA, 20170

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