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Thuy Sindell and Milo Sindell

The Sindells are principals in Skyline Group International, Inc., Skyline Group is the leading provider of scalable leadership solutions with a foundation built upon decades of executive coaching with some of the most recognized companies in the world. Skyline is revolutionizing the leadership development industry with the C4X coaching platform. C4X is the only coaching solution that gives you the ability to develop all leaders consistently and systematically from onboarding to executive development. C4X combines a flexible and mobile technology platform (integrated assessment, personalized content, metrics, and coach management system) with the impact and connection of 1:1 coaching. Learn more at and