eSSENTIAL ACCESSIBILITY is a comprehensive digital accessibility platform. We help organizations create inclusive web, mobile, and product experiences through digital accessibility testing, evaluation and remediation. Organizations can then enhance the digital experience for people with disabilities, comply with regulatory and statutory accessibility standards, and project an inclusive and disability-friendly presence.

eSSENTIAL ACCESSIBILITY delivers instant impact by virtue of its rapid accessibility statement creation process and assistive technology application, a suite of keyboard, mouse and touch replacement tools designed to make the digital world accessible to people with physical disabilities.

Our digital accessibility platform helps purpose-driven organizations learn the benefits of enhancing the customer experience for people with disabilities. Our global coalition of private and public sector organizations works together to make digital platforms welcoming to people of all abilities.

Management Team

  • Simon Dermer

    CEO & Co-Founder

    eSSENTIAL Accessibility’s innovative market driven approach is informed by Simon’s healthcare industry experience as a business development executive with a network provider and owner of an outpatient rehabilitative services facility.

    As a founder and Chief Executive Officer, Simon is responsible for driving the mission, vision and strategic direction for the company. Passionate about bridging the digital divide for people with disabilities, Simon champions product strategy and development at eSSENTIAL Accessibility.

    Simon graduated in economics from Queen’s University and completed the Chartered Financial Analyst (CFA) program.

  • Spiro Papathanasakis

    COO & Co-Founder

    Spiro’s background, with his experience in front line consumer services with some of the largest companies in the financial and healthcare sectors and as a developer of consumer-friendly digital claims, informs eSSENTIAL Accessibility’s innovative market driven approach.

    As the Chief Operating Officer, Spiro oversees day-to-day business operations and leads the finance, client services and compliance teams.

    Spiro graduated from the University of Toronto with an Honours Bachelor of Arts in Economics and Political Science.

  • Mark Steele

    President & Co-Founder

    Mark brings over 25 years of experience working with global technology companies that offer compelling and, in most cases, disruptive solutions to the marketplace, most recently as Chief Revenue Officer at Newstore Inc. Prior to Newstore, Mark led Sales and Marketing at Tulip Retail and spent over 8 years in leadership positions at Oracle.

    Mark was as founding board member at eSSENTIAL Accessibility and joined the company in a permanent role in late 2018 to help scale the business for growth.
    As President, Mark leads all aspects of corporate development, sales and partnerships at eSSENTIAL Accessibility.

    Mark holds an undergraduate degree in Law from Carlton University and an MBA from the University of Toronto.

  • Eric Feinberg

    Chief Marketing Officer

    Eric is a creative and analytical marketing leader. Previously, Eric was the Vice President of Marketing & Chief Evangelist at ForeSee, the customer experience analytics company. He’s a board member emeritus of the industry trade group Digital Analytics Association and a well-established customer experience thought leader. Eric holds a Bachelor of Arts from the University of Michigan.

  • Helen Henriques

    VP, Human Resources and Operations

    With over 15 years of experience in human resources and strategic operations, Helen Henriques is a dynamic individual who has helped organizations grow exponentially. Her success lies not only in her skills, but also in her ability to understand and illuminate a company’s key strengths. Her dynamic approach to leadership saw her being recognized in Wings Magazine’s “Top 20 Under 40 Leaders” and in Space & Technologies Magazine’s list of the “Most Influential Person in the Top 20 Under 40.” She holds a Bachelor’s degree in Political Science from the University of Toronto and has gained certifications in Certified Human Resources Designation (CHRP) and Certified Professional in Accessibility Core Competencies (CPACC).

  • Cezary Tomczyk

    Chief Technology Officer

    Cezary is a thought leader in accessibility technology measurement and development. Having worked for Apple, Microsoft, Oracle, and Infor, among others, he has a broad and deep knowledge of all facets of accessibility, working with both small and large companies. He has a unique cross-functional ability to manage the entire product lifecycle from systems top to bottom as well as designing and implementing user interfaces. He is a Certified Scrum Master and multi-lingual in both human and programming languages. He is an expert in implementing WCAG techniques (including ARIA), planning priorities, CVAA, testing on screen readers, working with usability best practices.

  • Eduardo Meza-Etienne

    Director of Compliance

    Eduardo, a brain injury survivor, has been involved in the accessibility and disabilities field for 20 years working for numerous government agencies and small contractors in the Washington, DC metropolitan area. He is a Certified Professional in Accessibility Core Competencies by the International Association of Accessibility Professionals and is the Accessibility Chair for the DC Metro BLN. Eduardo holds a Bachelor of Science in Economics, a Master of Science in Accounting and Finance from the London School of Economics and Political Science, and a Master’s degree in International Management from Thunderbird School of Global Management in Glendale, AZ.

  • Naré Hamboyan

    Director of Client Success

    Naré drives client engagement and helps organizations optimize their utilization of eSSENTIAL Accessibility’s comprehensive digital accessibility solution. By building deeper relationships and ensuring the quality of delivered services, Naré fosters positive client experiences and success for both brand partners and the company. Naré holds a MBA from the Schulich School of Business.

  • Kara Zirkle

    Manager, Compliance and Training

    Kara has over 18 years’ experience working with individuals with disabilities and education/outreach. She is an advocate and educator with regard to providing technical support, awareness and guidance on assistive technologies as well as the laws around overall accessibility and those that protect individuals with disabilities. Kara holds a Master of Arts and Bachelor of Arts from West Virginia University.


We are proud to partner with leading advocacy groups for people with disabilities.


Looking to be a part of something awesome? You’ve come to the right place.
Here are the positions we’re looking to fill.

  • Accessibility Consultant/QA Analyst

    Apply Now
  • Senior – UX Designer

    Apply Now
  • Contracts Administrator and Executive Assistant

    Apply Now
  • Account Development Representative – Toronto

    Apply Now
  • Web Accessibility Testers – US & Canada

    Apply Now

Couldn’t find what you’re looking for? Send us your resume anyway!

Discover how you can give people with disabilities an inclusive digital experience

Request a personalized demo, and one of our experts will answer all of your accessibility questions.