Our Team

Thana Sakas


Thana’s coaching expertise emerged from practical experience and a diverse set of leadership roles and challenges. Before founding Gramercy Consulting, Thana spent several years on the executive team of a privately held direct-to-consumer retailer where she played a crucial role as internal coach and confidante to the CEO and senior team. Previously, she partnered with top leadership teams of Fortune 100 companies as a consultant with Accenture, built an HR consulting practice in North America for a Brussel’s-based HR consulting firm, built Executive Coaching Practice for Lee Hecht Harrison in the Southeast before moving into a SVP/GM role with full P&L and regional sales responsibility. Currently, Thana coaches top leaders across a variety of industries and serves as an adjunct faculty member at J. Mack Robinson’s College of Business (GSU).

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Thana Sakas

Marcel Henderson

Senior Associate, Executive Coach

Marcel brings over 20 years of experience in executive and leadership development roles, with a concentration in coaching, team effectiveness, and organizational development.  She has worked extensively with leaders and team to effect long-lasting behavioral change and designed and led internal coaching centers of expertise for two Fortune 500 companies.

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