Meet Our Faculty


Christi Byerly, MCC - founder and CEO

Christi's coaching process motivates you to build a community of empathy and grace around you — and to live your mission as part of something bigger than you are. 

Christi has trained hundreds of new coaches in French and English since 2014 and has mentored dozens of coaches-in-training. She maintains a thriving coaching practice and has been coaching professionally since 2009, after graduating from the International Coach Academy. 

Christi holds a Master NLP certificate, as well as certifications in spiritual direction, group coaching, depth coaching, Enneagram work and mentor coaching. She is a Certified Daring GreatlyTM Facilitator.

Married to Ben, she is the mom of three young people and lives in Alsace on the French, Swiss, and German borders.


  • ICF - Master Certified Coach®️ and Mentor Coach
  • NLP Master Practitioner
  • Spiritual Accompaniment Certified
  • Certified Daring Greatly™ and Certified Dare to Lead™ Facilitator
  • ORSC™ - Organization and Relationship Systems Coaching
  • Certified Group Coach and Workplace Coach

Andrew Simpson, PCC

Andrew is an internal leadership coach and organization development practitioner with World Vision, with 30 years of experience. He established Rising Sun Coaching, LLC with his wife and co-coach Sharon.

Andrew is passionate about walking with non-profit, corporate and ministry clients to gain clarity, confidence, courage and momentum towards a bright and fruitful future. In coaching leaders, he integrates the Leadership Circle Profile 360 to inform leadership growth and team building.

Proficient in French and Wolof (Sénégal), Andrew holds a Bachelors in Foreign Service from Georgetown University and a Masters in Organization Development from American University. Having completed a Certificate in Leadership Coaching from Georgetown, he is an ICF Professional Certified Coach and an ICF Registered Mentor Coach.

Based in Washington, D.C. he is the father of two teenage sons and actively involved with a local church. He loves capturing the sunrise in poetry and photography.


  • ICF - Professional Certified Coach®️
  • Leadership Circle Profile 360 Certified
Andrew Simpson photo 6-28-20
Thomas Mundia Photo 2021

Thomas Mundia, PCC

Thomas is a senior executive leadership coach, specializing in gender, social, moral and emotional intelligence. A professional coach since 2015, he coaches CEOs, executive and board committee members, senior leadership teams, business owners and social entrepreneurs, both as a personal and team coach in countries across Africa.

With a background in economics, Thomas holds a masters in applied philosophy and ethics. He has held senior positions in manufacturing, media, finance and NGOs.

Thomas combines coaching psychology with psychometric assessments to help his clients find their underlying drivers, move through their blocks, and achieve their goals. His creative tools, exercises, and African proverbs offer deeper awareness.

He's adventurous, creative, and curious. With his wife Hedaya, Thomas heads the thriving Pied Pipers Services, Ltd.


  • ICF - Professional Certified Coach®️
  • Master in Applied Philosophy and Ethics
  • Institute for Social and Emotional Intelligence Coach (USA)
  • Advanced Professional Skills Training (The Performance Solution, UK)
  • LPI TPMA Certified Trainer (IFC, UK)
  • Clarity 4D Certified Accreditor & Business partner (UK)

Valeyne Grotrian, PCC

Valeyne is a Leadership & Career Coach with over 15 years of experience in business operations and human resources leadership roles within Fortune 100 and small to mid-size organizations across 6 industries. Valeyne founded Agora Coaching & Training Solutions to support growth-oriented corporate leaders, middle managers and rock-star individual contributors to reach new levels of personal & professional growth.

Valeyne holds the PCC credential through the ICF and is a 2012 graduate of International Coach Academy, a 2021 graduate of Awaken Coach Institute and holds a Psychology of Leadership Certification through eCornell University, a Myers-Briggs Type Indicator certification and is a Certified CliftonStrengths Coach through the Gallup organization. 

Based in the greater Chicagoland area, Valeyne is a pilot’s wife and dog mom to 2 labrador fur babies. They all enjoy adventurous time outdoors together whether it be at the beach or mountains. 


  • ICF - Professional Certified Coach®️®️
  • Certified Coach through Gallup 
  • Myers-Briggs Type Indicator (MBTI) Certified Practitioner
  • Psychology of Leadership Certification through eCornell University
Heather portrait copy2

Heather King, PCC

Heather completed her training as a Certified Professional Coach at the International Coach Academy in 2012 and became an ICF Associate Certified Coach in 2014. She is passionate about life-coaching because she believes it has the potential to help people thrive and live lives that are deeply fulfilling and meaningful.

One of her core values, as a coach, is to support and come alongside her clients as they align their lives with what they truly value. Heather also has a Master’s in Social Work and is bilingual in English and Spanish. She lives in PA with her husband and three teenage boys. She loves to read, hike in the mountains, play volleyball, and drink a good cup of strong coffee.


  • ICF - Professional Certified Coach®️

Camilla Cesari, MCC

Camilla is an experienced leadership and executive coach and facilitator who works with mid-senior managers, leaders and executives. She holds an MBA with the University of Adelaide and has a background in economics and tax law. Her diverse life and work experiences both as a freelance, a professional and a manager in a multinational company give her many insights on the challenges coming with life and work transitions.

Her areas of expertise include management training in coaching competencies, social and emotional intelligence, work-life balance, communication, strengths awareness and management, executive team cohesion development and resilience.

Camilla coaches in English, Spanish, Italian and French, and has over 2.500 coaching hours, including executive coaching, small group coaching and team coaching. She has worked worldwide with entrepreneurs, leaders and teams in global organisations, small businesses and professionals. She also works as mentor coach for coaches. She lives in Bologna, Italy.


  • ICF - Master Certified Coach®️
  • ORSC™ - Organization and Relationship Systems Coaching
  • ICF Mentor Coach
  • Leadership Circle Profile 360 Certified
Camilla Cesari
Grace Remington

Grace Remington, ACC

Grace is a leadership and well-being coach who is passionate about empowering others to live whole and resilient lives. She graduated from George Mason University's Leadership Coaching for Organizational Well-Being program and has worked with a variety of clients, including military leaders, fighter pilots, federal government and private sector managers, men and women experiencing mid-life transition, and new parents.

For the past eight years, Grace has worked as an immigration law professional in the federal government, holding positions in DC, California, and abroad. She is a yoga, barre, and meditation instructor, a lifelong vegetarian, and an international travel enthusiast. She lives in Washington, United States.


  • ICF - Associate Certified Coach®️

Joan Leteipa, ACC

Joan is an International Development professional with over 15 years of experience in product and project management across non-profits and multinational corporations. As an Associate Certified Coach with ICF and Social Innovation fellow with Waterloo Institute for Social Innovation in Canada, she applies a coaching mindset to all her work and approaches life as a process of continuous innovation.

She views coaching as a way of being and is fascinated by the daily transformation coaching brings in alignment with her core value of growth. She enjoys coaching conversations and facilitating professional coach training. She lives in Kenya with her husband Leteipa and two sons Lempiris and Lesiamon. She loves taking beach walks, swimming, quiet reflection and deep conversations over a cup of brewed Kenyan masala tea (chai).


  • ICF - Associate Certified Coach®️
  • LIFO®️ Certified Practitioner
  • Success Teams Certified facilitator
Joan Half potrait - Joan Leteipa