Our Company

Gyst's mission is to bring the user experience to life.

Our cloud-based software monitors how users engage with mobile phones, desktops, voice self-service and other technologies. It then delivers a personalized, user-centric experience based on the users skills, knowledge, environmental conditions and other factors. This provides a level of engagement that approximates the level of interaction we have with other humans. Using technologies developed at Gyst, our clients have saved hundreds of millions of dollars on over 1.5B user interactions to date. 

Our Team

Our team of experts are all professionals committed to true innovation and design excellence. These industry recognized luminaries include some of the best in the business and have decades of design experience and successful project development to their credit. Whether it's a strong patent portfolio, published books or scientific papers or a Ph.D, this team delivers on its promise of forward thinking design and innovation.

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Daniel O’Sullivan, CEO

Dan is an entrepreneur, innovator and scientist who has developed and licensed his software technologies to American Airlines, HSBC Bank, Rice University, Alcatel-Lucent and dozens of Fortune 500 companies.

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Nikolaos Mavridis, Ph.D.

Nikolaos received his doctorate from the Massachusetts Institute of Technology. His publications have received more than 400 citations, has been a TEDx speaker twice and is founder of the IRML lab.

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Maria Aretoulaki, Ph.D.

Maria is a leading expert in voice self-service app design. She has worked for over twenty organizations across 20+ verticals worldwide, including Apple, BBN Technologies, Vodafone and Barclays.

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Jessica Peterson, Ph.D.

Jessica received her doctorate in Linguistics with a specialization in Cognitive Science from Northwestern University. She has fifteen years of experience in cognitive science and user experience.

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Our Clients

Using technologies developed at Gyst, our clients have saved hundreds of millions of dollars on over 1.5B user interactions to date. Some of the most progressive companies in the world use our technologies to streamline, optimize and reduce costs for their day-to-day operations.


Here's what some of our clients say about the technologies we have developed for them:

“Performed flawlessly. Reduced automated call times by 26 seconds and increase containment by 1.6 percent” - Director, Customer Service, Major U.S. Public Transit Company.

“Delivers as promised. We verified an 11 second drop in handle times" - Director, Call Center, Top 5 Super-Regional U.S. Bank.

"Shortened call durations by 7 seconds and provided an ROI of 5 months” - SVP Of Operations, Top 3 International Bank.

"Tens of millions of consumers will soon experience a giant leap forward in customer self-service." - CEO of major IVR hosting company. Read more here

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