Before accessibility, Mark worked extensively in technology as an entrepreneur and in mid-size and corporate environments. He learned about digital accessibility from a friend who was working in the industry. Having grown up with dyslexia and spending significant time exposed to deaf culture while learning American Sign Language, Mark knew digital accessibility was his path. He spent three years searching for a way to break into the industry and blend his technology knowledge with accessibility. He then found an opportunity at Interactive Accessibility and was united with his first mentor, Kathy Whalbin

Interactive Accessibility, where Mark started working in accessibility, grew, and five years after he joined the company, it merged, under Vispero, with The Paciello Group and rebranded as TPGi. Mark stayed on, helping clients with accessibility strategy and conformance to regulations like the ADA and the WCAG guidelines. He also helped develop products and services and their go-to-market strategy.

Having worked on the Proactive Accessibility Conformance Strategy (PACS) at Interactive Accessibility, then with the accessibility maturity practice at TPGi, Mark developed a passion for organizational accessibility strategy and joined the W3C Maturity Model Task Force of the APA WG, working on the Accessibility Maturity Model (AMM). 

Today, Mark continues his work as an invited expert on the W3C AMM and as the founder of Inclusion Impact Accessibility, where he and his team continue to consult with organizations and bring them the best strategies and solutions to manage and grow the accessibility of their digital assets.

As a thought leader, Mark has been a prolific speaker on digital accessibility throughout his career and maintains a prolific speaking and podcasting schedule, including: