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At every level of Trissential, we seek people with wide ranging experience and the ability to think outside the box. We find those who are passionate about areas such as technology, customer service, systems, project management and best practices. Ultimately, it’s not our team we are creating; this is our client’s team, a gathering of the best and brightest with the focus on putting our clients first.

We invite you to take a minute to meet the leaders of our talented group of Essentialists™.

Keith Korsi

Keith Korsi

Founder, Chief Executive Officer (CEO)

Keith Korsi co-founded Trissential in 2003. In addition to his responsibilities to the company as CEO, Keith also manages Trissential’s executive leadership team and sales division.

An industry veteran of 26 years, Keith is a recognized thought leader and sought after speaker who has a strong reputation for building and maintaining relationships for mutual success. His unique ability to combine top down visionary thinking with bottom up execution, has enabled Trissential’s continued success.

Keith also holds the position of CEO of SQS USA.

Jim Mohs

Jim Mohs

Principal & Sales Essentialist™

Jim Mohs is the Principal and Sales Essentialist, joining the team in 2006. He exceeds client expectations with ease of communication, developing strategic and trusting relationships, and delivering high quality solutions.

Over his 30-year career, Jim has honed a natural partnering style, which paired with his ability to discern client-critical insight, allows him to help clients efficiently and effectively achieve their business and IT objectives.

Craig Thielen

Craig Thielen

Chief Essentialist™

Craig Thielen joined Trissential in 2007 and is the Chief Essentialist, ensuring we are providing relevant and high value services in an ever-changing world. He is passionate about helping organizations gain business agility for sustained competitive advantage.

For 25 years, Craig has been a highly sought after consultant and has advised many world-class global organizations. He is a globally recognized thought leader, speaker and writer on the topics of business agility, enterprise transformation, innovation, culture, change leadership, and strategy.

Laura Dotseth

Laura Dotseth

Head of Delivery, Trissential / SQS USA

Laura Dotseth joined Trissential in 2014 and leads our United States Delivery Team. She brings great energy, experience and a collaborative leadership style for helping clients take on complex change.

Laura leverages the Trissential team's capabilities within Business Agility, Continuous Quality and Management Consulting to actively drive our client's improvement initiatives and help them avoid costly mistakes.

Mark Sirianni

Mark Sirianni

Senior Director of Finance

Mark Sirianni joined SQS in 2013. He is responsible for delivering timely and accurate financial reporting as well as managing all accounting and finance operations for Trissential/SQS USA. ​

With over 23 years of experience and demonstrated ability, Mark's financial expertise provides the foundation for the financial administration of the organization. He offers broad management, internal control and strategic advice to senior management. ​