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About Us

We push boundaries where people and technology move forward, together, toward a digitally-enabled world built on trust, grit, and shared ambition. 

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26
years of experience
20000
projects delivered
200
+
experts solving modernization challenges
insurance

Where people spark digital change

 

TSG was founded in 1999 on a simple belief: digital transformation should feel human. Today, we’re a consulting partner that fuses bold technology with something even stronger—people united by one vision to build a smarter, more connected world.

We move fast, tackle complexity head-on, and build solutions that last. From scaling thousands of projects to securing critical infrastructure and modernizing with AI, our mission stays the same—driving progress that leaves a mark.

Grounded in deep values

trust
Trust
 
Trust is earned through consistency, integrity, and follow-through — the foundation that allows every partnership and project to thrive.
 
service
Service
 

Service means showing up fully, delivering with purpose, and creating impact that extends beyond the task at hand.

grit
Grit
 
Grit turns obstacles into outcomes, fueling progress through persistence, accountability, and the belief that every challenge can be overcome.

We're led by bold thinkers

Our leadership is made up by innovative thinkers, approachable leaders, and collaborators who push the edge of what’s possible.

Sheldon Wolitski

Sheldon Wolitski

Founder, Chairman of the Board

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George Karakostantis

George Karakostantis

President Chief Executive Officer

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Tom Whitely

Tom Whiteley

Chief Operating Officer

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Zach Earls

Zach Earls

Chief Revenue Officer

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Tony Perry

Tony Perry

Chief Financial Officer

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Eric Castorina

Eric Castorina

Sr. Director, Learning Performance + Optimization

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Whitney Dannecker

Whitney Dannecker

VP, Technology

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Byron Dunn

Byron Dunn

Vice President of Delivery

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Fletcher Emery

Fletcher Emery

Sr. Vice President, Client Development

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Jonathan Kelley

Jonathan Kelley

Vice President, IT + Operations

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Missy McCormick

Missy McCormick

Sr. Director, People Strategy

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Dustin Sandoval

Dustin Sandoval

Vice President, Consumer + Industrials, Financial Services

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Abby Shackelford

Abby Shackelford

Sr. Director, General Counsel

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Pete Spangenthal

Pete Spangenthal

Vice President, Healthcare, Communications

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Brezny Weening

Brezny Weening

Director, Human Resources

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United by curiosity and a shared belief that technology should serve people first

People-centric service
We lead with people, not processes. Every partnership starts with trust, built through collaboration, care, and a relentless focus on client success.
 
Deep industry insight
We don’t guess. We know. Our consultants bring real-world experience and proven playbooks to solve what matters most in your industry.
 
Flexible + Future-ready
We build for what’s next. Our solutions flex, scale, and evolve to meet change head-on and never play catch-up.
 
End-to-End Delivery
From bold strategy to flawless execution, we own the outcome. Fast, accountable, and measurable every time. 
 
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Join our team

We’re radically human. We think boldly, work with purpose, and turn complexity into progress. If you thrive on solving what others can’t, we want you on our team.   

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Let's build together

Join our partner ecosystem to uplevel your business and better serve your customers with collaboration and support of TSG. 

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