We've been protecting clients from cyber attacks for 15 years.

Meet
Our Team

Meet
Our Board

We've simplified security, delivering an award-winning advanced service tailored to mid-sized enterprise that protects high-risk assets from advanced cyber threats that technology alone can miss, 24x7. While founded in 2001, we launched our managed security service in 2008 and have experienced rapid operational and geographic growth ever since. The company is privately held.

J. Paul HaynesJ. Paul Haynes
Eldon SprickerhoffEldon Sprickerhoff
John HarrisJohn Harris
Mark McArdleMark McArdle
Jamie DoolJamie Dool
Felix KnollFelix Knoll
Mark SangsterMark Sangster
Eric RitterEric Ritter
Mark AdamsMark Adams
Dawn LeethamDawn Leetham
Sean BlenkhornSean Blenkhorn
Shari KnightShari Knight

J.Paul Haynes

Chief Executive Officer

J.Paul Haynes is a professional engineer with a 25-year entrepreneurial track record of success. J.Paul has led eSentire to 20x its size since joining the company in late 2010. His business acumen, in-depth understanding of technology and strong leadership has made him a respected and reliable voice on the topic of cybersecurity in North America and Europe. He holds both a B.Sc. and M.Sc. in Engineering from the University of Guelph and is a proud alumni, currently serving on the Industrial Advisory Board for the University of Guelph’s School of Engineering and the Board of Innovation Guelph.

Eldon Sprickerhoff

Founder and Chief Security Strategist

In founding eSentire, Eldon Sprickerhoff responded to the incipient yet rapidly growing demand for a more proactive approach to preventing and investigating information security breaches. Now with over twenty years of tactical experience, he is acknowledged as a subject matter expert in information security analysis. Eldon holds a Bachelor of Mathematics, Computer Science degree from the University of Waterloo.

John Hartley Harris

Executive Vice President, Operations and Chief Financial Officer

John Hartley Harris has more than 20 years of executive-level financial and operational experience and leads eSentire's financial operations and investor relations. John has provided counsel and leadership to companies through the full spectrum of growth, including business combinations and IPO. John is a proven business builder of early stage, high growth companies and venture firms working with early stage companies. John is proud to have contributed through the leadership teams for companies including Descartes (DSG:NASDAQ-1998, TSX-1997), ThoughtCorp (acquired by EPAM:NYSE) and RIS (acquired by Sierra:Private). Founding partner of New Carbon Economy Fund. John holds an Honours degree from the Ivey Business School at the University of Western Ontario where he enjoyed playing Mustangs Varsity hockey. He is the proud father to three children.

Mark McArdle

Chief Technology Officer

Mark McArdle is a seasoned technology executive with over 20 years experience with top technology brands, such as PGP Inc. and most recently McAfee's Senior VP for its consumer product development division. Mark defines new, leading edge products for eSentire and himself holds six patents in Internet security. Mark holds a Bachelor of Science degree from the University of Waterloo and completed the Ivey Executive Program in 2005.

Jamie Dool

Vice President, Engineering

As Vice President of Engineering, Jamie is responsible for leading eSentire's product development and quality assurance organizations and all aspects of system and service design, implementation and testing. Jamie is an experienced senior leader with a proven track record in the security software industry with companies like Magnet Forensics and McAfee, where he has led a variety of product development teams across enterprise, consumer, law-enforcement and government customers. He is named on several security patents and has a passion for technology that solves complex problems and customer driven innovation.

Felix Knoll

Executive Vice President, Worldwide Sales

Applying over 17 years of sales leadership experience, Felix Knoll is responsible for all Field, Channel, and Inside Sales and Engineering teams at eSentire. Prior to joining eSentire, Felix was the Director of Americas Sales for Symantec's Threat and Risk Management Group. Most notably during his career at Symantec, he was recognized as the top national sales leader across North America in 2012. Felix holds a Bachelor of Science-Business degree from the University of Notre Dame.

Mark Sangster

Vice President, Marketing

As a member of the LegalSec Council with the International Legal Technology Association (ILTA), Mark is a cybersecurity evangelist who has spent significant time researching and speaking to peripheral factors influencing the way that legal firms integrate cybersecurity into their day-to-day operations. In addition to his passion for cybersecurity, Mark's 20-year sales and marketing career was established with industry giants like Intel Corporation, BlackBerry and Cisco Systems. Mark's experience unites a strong technical aptitude, and an intuitive understanding of regulatory agencies. During his time at BlackBerry, Mark worked on the first secure devices for government agencies and has continued to build mutually beneficial relationships with regulatory agencies in key sectors ever since. Mark leads a team of savvy customer-focused marketers at eSentire. Mark holds a Bachelor in Psychology degree from the University of Western Ontario, and a Business Diploma from Humber College.

Eric Ritter

Vice President, Security Operations

A passionate believer in superior customer service, Eric Ritter leads eSentire's global security operations teams. Eric is responsible for establishing collaborative relationships with educational institutions and regional government representatives which continues to cement eSentire’s expansion into new global geographies. His background includes 12 years at Research In Motion where he held several senior management roles directly focused on RIM's Enterprise customers in both Technical Sales and Product Management.

Mark Adams

Vice President, Corporate Development & Channel Partnerships

With over 25 years of experience in the information technology and financial services industries, Mark leads the corporate development and channel partnership programs at eSentire. Mark has previously held analyst and portfolio management roles at several investment management funds in addition to time spent focusing on M&A investment banking and corporate development for large technology-based organizations. He holds a Bachelor of Science degree from Providence College and a M.B.A. from Harvard Business School.

Dawn Leetham

Vice President, Customer Success and Services

A talented project manager, Dawn Leetham brings over 20 years of combined project management and software solutions experience to eSentire. As the Vice President of Customer Success and Services, she specializes in ensuring that client needs are met with the right solutions and each project receives meticulous attention to detail. Dawn holds a Bachelor of Applied Science in Chemical Engineering from the University of Waterloo, and has been a Certified Project Management Professional (PMP) since 2005.

Sean Blenkhorn

Senior Director, Solutions Engineering & Advisory Services

As a seasoned security leader, Sean Blenkhorn has spent much of his nearly 20-year career consulting with leading global (FORTUNE 50, 100, 500 and 1000) companies around security and compliance solutions. In his role as Senior Director of Solutions Engineering at eSentire, Sean leads his team globally as they provide guidance, consultation, and technical perspective to new customers as they evaluate and adopt eSentire’s award winning services to address their security and compliance requirements. Sean has an Associate’s Degree in Software Engineering from Georgian College.

Shari Knight

Director of People

Shari Knight has spent more than 10 years working within Kitchener-Waterloo's technology sector, where she's helped high-growth companies scale and build high performing teams. As eSentire's Director of People, Shari leads growth, recruitment and employee development programs. She has a Bachelor of Arts degree and a Diploma in Human Resources Management, both through the University of Guelph. Shari also holds the Certified Human Resources Leader (CHRL) designation through the HRPA.

Our History

2016

eSentire Wins Best Risk Management Technology Provider in 2016 HFM European Hedge Fund Services Awards
Press Release

eSentire Launches Cloud-based DNS Firewall™ Service
Press Release

eSentire Launches Cymon.io™, the Largest Open Source Threat Intelligence Aggregator
Press Release

eSentire Wins Best Security Solution in 2016 HFM U.S. Technology Awards
Press Release

eSentire Secures $19.5 Million in Total Funding
Press Release

2015

Named to Deloitte's Technology Fast 50™ (Canada) and Technology Fast 500™ lists
Press Release

HFM Technology Awards Most Innovative Technology Solution Winner
Press Release

HFM Hedge Fund Services Awards Best IT Security Service Winner
Press Release

Opened European operations in Cork, Ireland
Press Release

Listed in IDC MarketScape: Canadian Managed Security Services 2015 Vendor Assessment Report
Read More

HFM European Hedge Fund Services Awards Best Risk Management Technology Provider Winner

Named as one of Canada's Top Small & Medium Employers
Press Release

HFM US Technology Awards Most Innovative Technology Solution Winner
Press Release

HFM US Technology Awards Best Security Solution Winner
Press Release

2014

eSentire Raises $14 Million Series C Equity Investment
Press Release

Opened London, England Sales Office
Press Release

HFM Hedge Fund Services Best Security Service Award Winner

Opened U.S. Sales Office

2013

Named to the Canadian Innovation Exchange's CIX Top 20 List

Named as a "Company to Watch" in Deloitte's Annual Listing

Highly Commended as "Best Risk Management Technology Provider" at the HFM Services Awards

Received $11M Series 'B' Funding

2012

Received $1M Series 'A' Funding

2011

Received $1.0M Federal Development Funding Grant (Government of Canada)

2008

Managed Security Service Launched

2001

eSentire founded

Our Affiliations

FS-ISAC

Financial Services Information Sharing and Analysis Center

Launched in 1999, FS-ISAC was established by the financial services sector in response to 1998's Presidential Directive 63. That directive - later updated by 2003's Homeland Security Presidential Directive 7 - mandated that the public and private sectors share information about physical and cybersecurity threats and vulnerabilities to help protect the U.S. critical infrastructure.

Click here to learn more

CWE

Common Weakness Enumeration

Annual report International in scope and free for public use, CWE provides a unified, measurable set of software weaknesses that is enabling more effective discussion, description, selection, and use of software security tools and services that can find these weaknesses in source code and operational systems as well as better understanding and management of software weaknesses related to architecture and design.

Click here to learn more

SwA

Software Assurance
Department of Homeland Security

The Software Assurance Program of the Department of Homeland Security's National Cybersecurity Division co-sponsors SwA Forums semi-annually with organizations in the Department of Defense and the National Institute for Standards and Technology.

Click here to learn more

HFMA

Hedge Fund Marketing Alliance
 

Since 2001, the Hedge Fund Marketing Alliance was designed for hedge fund professionals, financial advisors, investment consultants, and other professionals who are involved in the placement or distribution of hedge funds.

Click here to learn more

HTCIA

High Tech Crime Investigation Association
 

The High Technology Crime Investigation Association (HTCIA) provides education and collaboration to our global members for the prevention and investigation of high tech crimes.

Click here to learn more

SecTor

Canada's premier IT Security Education Conference

SecTor is Canada's premier IT Security Education Conference. The annual event where IT professionals from throughout Canada can learn from and network with the world's most innovative, intellectual, exciting and entertaining security professionals. SecTor is IT Security Training at its best.

Click here to learn more

TASK

Toronto Area Security Klatch
 

The Toronto Area Security Klatch (TASK) is an informal get-together of Information Security professionals (and those who want to be professional) that is held monthly in the Greater Toronto area. Our mandate is simple: to encourage discussion and share expertise in understanding the latest trends and security threats facing computer networks, systems and data.

Click here to learn more

OASIS

Organization for the Advancement of Structured Information Standards

OASIS is a non-profit consortium that drives the development, convergence and adoption of open standards for the global information society.

Click here to learn more

Board of Directors

Steered by the best.

Adnane Charchour

Adnane Charchour

President and CEO - Consulting Group International, Inc.

David Unsworth

David Unsworth

Co-Founder and General Partner - Information Venture Partners

Geoff Horton

Geoff Horton

Managing Partner - VentureLink

Lenard Marcus

Lenard Marcus

Partner - Edison Partners

Nick Lantuh

Nick Lantuh

Chairman of the Board - eSentire, Inc.

Simon Chong

Simon Chong

Co-Founder and Managing Partner - Georgian Partners

J. Paul Haynes

J. Paul Haynes

Chief Executive Officer - eSentire

Download our company fact sheet to learn more about our company's story.