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Expert

John McMahon

  • Chicago, Illinois, United States

I guide leadership teams to see obstacles more clearly, unlock their best thinking, and challenge one another to grow.

Meet John McMahon

  • Expert EOS Implementer
  • 75+ EOS Clients since 2015
  • 1000+ Sessions
  • Owner of & Leader in an EOS-Run Company
  • Passionate About Leveraging Human Connection
  • It’s About the Team, Not Me

Book Your Free Introductory Call

Ready to get more of what you want from your business? Let’s talk. Book your free introductory call with me to share your business needs and challenges. I’ll share my background and style. No pressure, just a real conversation to see if we’re the right fit.

My Approach

Been There
I’ve lived the EOS journey as both an owner and an employee, so I understand it from every seat.
All-In
If your team is committed to each other, I’m fully committed to helping you get where you want to go.
Every Level
I focus on the impact that reaches your entire organization, not just the leadership team.

What It’s Like to Implement EOS

Hear from the business leaders and teams I’ve had the privilege of guiding through their EOS journey.

Client Success Videos

Expertise & Insights

Insightful guidance, practical tips, and real-world stories to help you strengthen your leadership team and run a better business.

From Lion to Lamb & Back Again

In most of North America, the saying goes that March comes in like a lion and out like a lamb. For many entrepreneurs, this phrase holds a parallel to their business experience....
Read More

Speaking Engagements

I deliver keynotes and workshops that are perfect for groups of growth-oriented business owners and leaders. These intense sessions will help you:
  • Understand the six keys to building a truly great organization
  • Roll up your sleeves and confront your organizational issues head-on
  • Learn how to get everyone focused on achieving a clear company vision
  • Begin to instill discipline and accountability throughout your organization

My Upcoming Events

April 23 @ 9:00 AM - 5:00 PM

Leveraging the Power of Human Connection: Inspiring a Shared Future

Location: EOS 2026 Conference | 1515 Wyandotte Street, Kansas City, Missouri, 64108

Expert Implementer

john.mcmahon@eosworldwide.com

Phone: (630) 306-6016

  • Chicago, Illinois, United States

About

For more than twenty years as a business owner, I’ve believed that when leaders commit to becoming better, they create better companies. Real success happens when leadership teams open up, think differently, and challenge one another to grow.

In 2012, I started using EOS tools as the Integrator in my own company. With a clear vision and a united leadership team, I saw the power of the EOS system firsthand. After years of negative growth, our net income climbed 35%, and 250 employees began rowing in the same direction toward a shared goal.

That transformation sparked the next chapter of my career. Today, as an Expert EOS Implementer®, I’ve guided more than 75 entrepreneurial companies through over 1,000 sessions—helping leadership teams break through barriers, align around vision, and achieve the success they imagine.

Outside of the session room, I’m an avid amateur athlete—a skier, cyclist, runner, and golfer—who values endurance and discipline. I’ve been married to my wife, Stacy, for thirty-eight years, and my favorite title by far is G-pa to my beautiful granddaughters, Shae and Zoe.

 

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