What We Do
How we do it
Our Threat Response Unit (TRU) publishes security advisories, blogs, reports, industry publications and webinars based on its original research and the insights driven through proactive threat hunts.
View Threat Intelligence Resources →
Jun 03, 2022
UPDATE: CVE-2022-26134 – Confluence Zero-Day Vulnerability
THE THREAT June 3rd Update: Atlassian has released security patches to address this vulnerability. On June 2nd, 2022, Atlassian disclosed a critical vulnerability impacting the Confluence…
Read More
View all Advisories →
About Us
eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1200+ organizations in 75+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
Read about how we got here
Leadership Work at eSentire
May 17, 2022
Cybersecurity Leader eSentire Continues Its Commitment to Rigorous Security Standards Earning PCI DSS Certification
Waterloo, ON, May 17, 2022 — eSentire, the Authority in Managed Detection and Response (MDR), maintains one of the most secure and robust IT environments of any MDR provider in the industry. To that end, eSentire today announced that it has received the Payment Card Industry Data Security Standard (PCI DSS) certification, considered one of the most stringent and comprehensive payment card…
Read More
e3 Ecosystem
We provide sophisticated cybersecurity solutions for Managed Security Service Providers (MSSPs), Managed Service Providers (MSPs), and Value-Added Resellers (VARs). Find out why you should partner with eSentire, the Authority in Managed Detection and Response, today.
Learn more
Apply to become an e3 ecosystem partner with eSentire, the Authority in Managed Detection and Response.
Login to the Partner Portal for resources and content for current partners.

The Authority in
Managed Detection and Response

eSentire is recognized industry-wide because we offer the world’s most complete threat response capability. Through Managed Risk, Managed Detection and Response, and Digital Forensics and Incident Response services, we put your business ahead of disruption.

Get Started

Put your business ahead of disruption

We understand what is at stake for you and pride ourselves in our ability to respond as one dedicated global team, taking real ownership over protecting your business from disruption.

An attack on you is an attack on us.

Our mission is to prevent cybercriminals from ever disrupting our customers’ businesses.

We understand what you’re protecting

Applications, networks, endpoints? It’s more than that. You’re protecting client trust, brand reputations, supply chains and investor confidence. That’s why we’re mission driven to prevent your business ever being disrupted.

We stand with you,
every moment of every day

The threats facing your business don’t stop. So neither do we. Our dedicated team, powered by unique threat intelligence and leading XDR technology, are there 24/7 to keep your business ahead of disruption.

We push boundaries,
to keep you ahead

We help you reclaim the advantage. From AI to advanced machine learning models, unique multi-signal threat intelligence and the industry’s most powerful XDR platform, we stay ahead of the innovation curve to keep you ahead of the threat curve.

What Defines Us

Team eSentire is dedicated to service excellence and prioritizing the security of our customers as we earn our global reputation as the Authority in Managed Detection and Response (MDR), each and every day. We commit to speed, innovation and continuous improvement in everything we do:


eSentire Atlas - the industry’s most powerful, and scalable, machine learning XDR Cloud Platform, ingests and normalizes data sources enabling threat visibility and correlation, and creates a security network effect that extends every threat response across our global customer base.



We stop threat actors in their tracks. Our Threat Response Unit (TRU) is dedicated to discovering the most dangerous threats and nation state attacks so that we can proactively harden the defenses of businesses around the world. TRU works hand in hand our 24/7 Elite Threat Hunters and SOC Cyber Analysts to hunt threats and deliver complete response.



From day one, our team is your team. Your Cyber Risk Advisor is dedicated to keeping your business ahead of disruption and alongside them, you’re joining forces with experienced cybersecurity veterans, elite threat hunters, and industry-renowned threat researchers. Your protection is personal to us and together, we are committed to making your security operation more responsive and your business more cyber resilient.



We are committed to providing Team eSentire teammates unique opportunities to collaborate, learn, be challenged and grow. We take pride in the open, transparent and candid culture created across Team eSentire so that every employee feels welcome to express their opinion on any topic at every level.


eSentire was inspired by the word Sentry - meaning to stand guard.

It’s what we do 24 hours a day, 7 days a week, to protect your business operations. With Team eSentire you’re protected by the best in the business from Day 1 with a named Cyber Risk Advisor and, 24/7 SOC Cyber Analysts and Elite Threat Hunters.

Our renowned cybersecurity experts are mission driven to protect your business. We stand guard 24/7 so you don’t have to.

The eSentire difference

Put your business ahead of disruption

  • Recognized globally as the Authority in Managed Detection and Response.
  • The world’s most powerful XDR Cloud Platform
  • 24/7 Threat Hunting & Disruption
  • End-to-end cyber coverage and comprehensive services
  • Team eSentire - Cyber Risk Advisor + SOC Cyber Analyst and Elite Threat Hunters on guard for your business 24/7
Difference certified
Difference mapped
Badges of Trust MDR About Us new review may2022
Badges of Trust MDR About Us new awarded 2x2

2021 Gartner® Market Guide for Managed Detection and Response Services

Read Now →

IDC MarketScape for U.S. Managed Detection and Response Services

Read Now →

Forrester’s Now Tech: Managed Detection and Response

Read Now →


Total AUM


Customers in 75+ Countries


Daily Signals Ingested


Daily Atlas XDR Automated Disruptions


Daily Human-led Investigations


Daily Escalations


Daily Threat Containments


Mean Time to Contain

Our Team

Powered by cybersecurity experts and innovative thinkers, eSentire provides the right environment to be challenged and advance your career, in one of the world's most dynamic industries.


Do Work That Matters

Join Team eSentire and collaborate with passionate people to protect businesses from cyber threats.

See Open Positions →

Our Story

eSentire is recognized globally as the Authority in Managed Detection and Response (MDR) because we hunt, investigate and stop cyber threats before they become business-disrupting events. In fact, we were founded in 2001 to secure the environments of the world’s most targeted industry - financial services. Now with over 1200 customers, across 75 countries globally, we have scaled to deliver cybersecurity services across all industries.

In 2017, global private equity firm Warburg Pincus made a major investment in eSentire. In 2022, eSentire achieved a valuation greater than US$1 billion, raising US$325 million in funding through a binding agreement with Georgian and Caisse de dépot et placement du Québec (CDPQ). Warburg Pincus remains eSentire’s majority shareholder.

May 2022 about us timeline desktop 1
May 2022 about us timeline desktop 2

Our Offices

Global HQ +SOC

451 Phillip St, Suite 135
Waterloo, ON N2L 3X2

+1 (519) 651-2200


5 New Street Square
London EC4A 3TW

+44 (0)8000 443242

Cork +SOC

Pearse House, Barrack Square,
Ballincollig, Co. Cork

Forensic Lab

540 Fort Evans Rd NE Suite 202
Leesburg, VA 20176

What our customers are saying

Leon thumbnail


Watch this video and see how eSentire drives more value for Hughes Hubbard & Reed than their previous cybersecurity solution by detecting and responding to cyber threats immediately 24/7, and acting as extension of their team.

Watch Now →


See why Texas United Management trusts eSentire MDR to augment their internal security team capabilities and respond to cyber threats on their behalf.

Watch Now →
Ray thumbnail
Rich Quarles Brady thumbnail


eSentire was able to work with Quarles & Brady to provide visibility and threat response across the company’s large and complex IT environments. Quarles & Brady alleviates internal resource constraints and has full visibility across their entire threat surface with 24/7 multi-signal Managed Detection and Response (MDR).

Watch Now →

What our employees are saying

With eSentire, I always look forward to my day when going into work. I know I’m working in a fast-paced environment where there is always something new to see and learn. I work with people I like and trust and I know that I have the support of management to handle anything that may come up during my day. This is an industry that never stops and I feel there’s no better place to be part of that action."
Joseph Vansteenkiste
SOC Advanced Services Cybersecurity Specialist
The senior leadership team is great at communicating our strategy and where the business is headed. It is a fast paced environment, but everyone finds the time to be transparent, open, and thoughtful about putting in place the right plans to help everyone succeed. Every team is very collaborative and wants to help."
Matthew Garrett
VP Corporate Marketing
I loved the company culture aspect of eSentire. After just my first interview in 2015 I could tell this was a place I wanted to work. Coming from a much larger company, I had always felt like just another number, at eSentire I was greeted on my first day by the Founder himself, mister Eldon Sprickerhoff. It is that kind of involvement, the leadership team had and continues to have that makes you feel valued and important, and I think that’s so special."
Kacey Hutchinson
Executive Assistant
The level of collaborative teamwork, technical expertise and organizational spirit here is unmatched. We make it a priority to hone skills and develop people’s talents so the eSentire tradecraft is unrivaled in the industry, making us the Authority in MDR. I love eSentire because we are a PEOPLE culture to the core. We are the place to build a meaningful career."
Kathryn Hodge
Chief People Officer
Our leadership always keeps us up to date with announcements on our corporate goals and roadmap. There’s a lot of change in the cyberspace and we are never standing still. I can pause to reflect on everything we have accomplished together as a team and I’m excited about what we are going to achieve next."
Samantha Piotrowski
Sales Enablement Manager
When I reflect on my 5 years with eSentire three words spring to mind ‘Exciting’, ’Grateful’ and ‘Proud’. I find it Exciting to work in a company that is expanding so quickly, we are constantly changing and adapting to our customers needs and the Cybersecurity Landscape. Challenging the status quo is not only welcome but it is encouraged, I believe this is the reason we are the world leader in MDR! I am Grateful to witness the career development of so many SOC Analysts. Every week, month and year I can see their skill set improve and confidence grow. The icing on the cake is to see them transition into our advanced specialist teams, further growing their career with eSentire. I am very Proud to work in a company that is focused on important topics such as ‘Inclusion’ and ‘Nerodiversity’. We hire candidates based on their abilities and potential, we actively seek out alternative ways of thinking."
James Tierney
Manager, SOC Operations
Between the leading technology exposure and the encouraging and supportive work environment, eSentire has been one of the best workplace experiences I've had!"
Alex Epworth
Cybersecurity Specialist, SOC
I come from a scientific background and eSentire has provided a foundation for me to build a security career from while giving me the creative freedom to explore research and reporting topics that impact our client base. When I applied for permanent residency in Canada, eSentire was there to support me with the requirements and paperwork. Another great advantage of eSentire’s work culture is location mobility. I’ve been fortunate to have worked remotely for eSentire while I travelled across Canada, from Waterloo, Ontario to Whitehorse, Yukon."
Keegan Keplinger
Data Visualization Lead, Threat Intel
At eSentire, I have experienced a great deal of support and guidance as I build a career that aligns with my passions and core values. eSentire is an anomaly in the corporate world. The leadership team supports you as a person and encourages you to share your ideas, strengths, and talents on a global stage."
Makenzie Van Eyk
Sales Enablement Instructional Designer
As an eSentire employee, I feel heard. We’re encouraged to give feedback and share ideas because our voices matter. I also love the opportunities for growth at eSentire. I’m grateful to have been promoted 3 times since joining in 2018. As a people leader, I strive to help my team walk a career track they can take pride in."
Deanna Laparan
Senior Manager Sales Development
What set eSentire apart from the rest of the companies is that they were one of the few pure-play cybersecurity companies in the region, and the only one with a local founder. I moved to Waterloo because I fell in love with the start-up culture, which you can see in all the unique coffee shops and restaurants uptown, and in the many successful tech start-ups. Even though eSentire was headquartered in Cambridge at the time, they embodied that same vibe. You can imagine how excited I was when we moved to Waterloo! I wanted to be part of something big, and I knew back then that eSentire was going to be big."
Jack Fahel
Team Lead, SOC Operations