At elite league international, we believe in building a legacy of excellence through leadership, integrity, and impact. Our foundation is rooted in the strength of two extraordinary individuals: Greg Carlson, a high-performing real estate expert and respected servant leader, and John Cronin, an innovative entrepreneur and marketing strategist. Together, they’ve built a network that empowers high-achieving individuals to grow in business, relationships, health, and personal development.

Greg Carlson: Real Estate Leader & Servant Mentor

Greg Carlson, co-founder of elite league international, brings a unique blend of military discipline and real estate expertise to the table. Based in Austin, Texas, Greg leads the Carlson Real Estate Group and is recognized as one of the top real estate professionals in the country. A proud veteran and graduate of Iona College, Greg is known not just for his results—but for the way he leads: with humility, strength, and service.

What Sets Greg Apart:

  • Recognized as a Top Realtor in Austin and nationally
  • Member of the Agent Leadership Council for Keller Williams Southwest
  • Brings military values of discipline, loyalty, and service
  • Actively volunteers and mentors others in the Austin community
  • Servant leader dedicated to lifting others through real estate and beyond

Greg’s commitment to purpose-driven success is exactly what Elite League International stands for—supporting those who want to win, but do it with integrity, humility, and grit.

John Cronin: Entrepreneurial Visionary & Marketing Expert

John Cronin, co-founder of Elite League International, is the strategic mind powering business success behind the scenes. As CEO of Proven ROI, a cutting-edge marketing and analytics firm, John has helped countless entrepreneurs, startups, and established brands scale using data-backed, high-impact marketing strategies.

With over two decades of experience in business and a background in computer science, John builds systems that create real results—on paper and in people’s lives.

Why John Stands Out:

  • Founder and CEO of Proven ROI, a top marketing automation firm
  • 20+ years of success in entrepreneurship, SaaS, and growth strategy
  • Expert in data-driven marketing, SEO, and performance optimization
  • Passionate about education, mentorship, and sustainability
  • Believes in the power of community to fuel lasting change

John doesn’t just talk about impact—he builds it. At Elite League International, his strategic mindset ensures that our members are equipped with the tools, mentorship, and systems they need to unlock their full potential.

Why Their Leadership Matters

Greg and John don’t just lead—they elevate. As co-founders of Elite League International, their vision is simple: to build a brotherhood and sisterhood of high performers who rise together. Whether you're a real estate investor, entrepreneur, executive, or someone seeking breakthrough growth—our network is a place to thrive.

Their complementary strengths—Greg’s people-first, mission-driven approach and John’s sharp, scalable strategies—create a rare blend of wisdom and execution, empathy and excellence, heart and hustle.

Are You Ready to Grow with Us?

Elite League International isn’t just a community—it’s a catalyst. Join a network where mentorship meets mastery, leadership meets legacy, and ambition meets alignment.