Our team

Sophia T. Siambekos

Founder and Principal Consultant

As a first-generation Greek-Macedonian American, Sophia knows firsthand the importance of hard work, commitment, and integrity in pursuit of one’s dreams. It is with these ideals and unparalleled service that Sophia established STS Human Resource Consulting Inc. in 2003.

Sophia is an agile, authentic change leader, coach, and consultant committed to elevate people as a critical lever for success. She is focused on the creation of values-driven cultures and the resolution of diverse business and human capital challenges, optimizing engagement, performance, and meaningful results. Across markets and industries, Sophia has earned the reputation as a trusted partner and catalyst for positive change and the long-term success of her clients and their people. She is differentiated by her unwavering ability to: lead with integrity and purpose, cultivate high-trust and inclusive relationships, and deliver practical and integrated solutions that work. 

Career Highlights

Sophia has over 25 years of experience leading and partnering on business priorities across the Human Resources, Leadership, Organizational Development, and Learning arenas. Her career journey consists of years as a business leader and consultant at STS Human Resource Consulting Inc. and within Arthur Andersen’s global organizational development and learning function. In these roles, Sophia led global, cross-functional teams to define people strategy and execute initiatives that facilitate change, engagement, and excel performance and targeted growth of leaders, teams, and organizations.  Sophia also consulted at a boutique firm focused on talent management and succession planning in the safety forces sector of large metropolitan areas across the nation, and served as an adjunct faculty member at North Central College.

Education & Credentials

Sophia earned a M.A. in Industrial and Organizational Psychology from The University of Akron and a B.A. in Personnel Psychology and M.M.B.A. certificate from Miami University (OH). She holds various facilitation and assessment instrument credentials and certifications, served on the Miami University Alumni Association Board of Directors, and advocates for the Crohn’s and Colitis Foundation of America (CCFA). 

STS HRC has long-standing relationships with a impressive team of seasoned consultants, facilitators, and coaches. Team members are carefully selected based on the targeted need of each client.  Specific team member bios are provided with proposals.