Sandra Voyadzis | Houston, TX
Leadership & Organizational Development, Behavioral Shift, Executive Presence, Influence, Influence, Organizational Change, Role Transition
Executive Coach / Facilitator
Sandra Voyadzis
Executive Coach
Sandra Voyadzis is a results-driven executive and leadership coach in Houston, TX, USA. Sandra brings a dynamic blend of expertise and empathy to leadership and organizational development, unlocking human potential and driving business success. A PCC-credentialed executive coach, she partners with senior leaders across multinational corporations to achieve transformative, measurable results. Known for her warm yet incisive style, Sandra builds trust quickly, influences senior stakeholders, and designs high-impact programs that elevate leadership capacity and culture. Her work consistently leaves a lasting legacy of stronger leaders, more cohesive teams, and higher organizational performance. In addition to executive coaching in Houston, TX, Sandra also provides virtual coaching across all U.S. time zones.
Coaching Philosophy
Grounded in authenticity, self-awareness, and courage, Sandra’s coaching philosophy centers on developing the whole person within their organizational system. She believes that leadership and wellbeing are inseparable, and that sustainable growth comes from integrating both. Balancing warmth and rigor, Sandra creates a space where leaders feel supported yet constructively challenged. Through deep reflection and targeted action, she helps clients uncover blind spots, shift mindsets, and lead with clarity and resilience. Her multicultural fluency enables her to connect across diverse contexts, fostering inclusive and sustainable leadership growth.
Results Achieved
Sandra’s coaching consistently delivers lasting impact across industries:
- Guided an EVP in Operations to reframe their mindset, leading to greater strategic clarity and confidence in difficult conversations.
- Supported a Fortune 50 executive in enhancing leadership presence and team engagement, leading to promotion within two years.
- Partnered with a healthcare executive through three career transitions, culminating in their promotion to CEO.
Areas Of Coaching Expertise
- High-Performance Leadership
- Executive Presence & Influence
- Behavioral Shift & Mindset Change
- Organizational Change & Transformation
- Role Transitions & Career Growth
- Emotional Intelligence & Resilience
- Team Effectiveness & Collaboration
- Work-Life Integration & Career Pathing
Levels Coached
- C-Suite & Executives
- Directors
- First-Time People Leaders
- eMBAs and MBAs
Education, Certifications & Awards
- MSc, Organizational Psychology – The London School of Economics
- MBA, International Finance – American University
- Professional Certified Coach (PCC) – International Coaching Federation (ICF)
- Institute of Coaching Affiliate – McLean Hospital | Harvard Medical School
- Certified in Hogan, EQi 2.0, KF 360, MBTI, DiSC, SDI, and other psychometric tools
- Mentor Coach – Rice University & Private Practice
- Leadership Coaching – Rice University & Texas A&M
Professional Experience
- Global Lead Coaching and Mentoring
- Internal Executive and Leadership Coach
- Head of Leadership Development
Functional Experience
- Coaching Programs
- Leadership Development
- Consulting
- Human Resources
- Knowledge Management
Industry Experience
- Banking
- Healthcare
- Energy
Schedule a Conversation with Sandra Voyadzis!
Connect with the experts at Bridgeline Coaching to find out if they are the perfect match for your needs. Schedule a conversation today and explore how their professional guidance can help you navigate your journey.

