Executive Leadership Coach | Founder of PINNACLE influence

Member of the International Compliance Assurance for Holistic Practitioners (ICAHP)

Lionel Sim empowers leaders through a coaching methodology that blends strategic clarity, mindset mastery, and lasting behavior change. His approach combines evidence-based leadership tools with therapeutic insight—supporting clients to break through inner limitations, lead with authenticity, and sustain high performance.

Known for his calm presence and results-driven style, Lionel works with executives, founders, and emerging leaders to gain clarity, shift patterns, and take aligned action. His work integrates principles of values-based leadership, cognitive reframing, and emotional intelligence development.

Lionel is an Associate Certified Coach (ACC) with the International Coaching Federation (ICF), a Master Practitioner of NLP, and an Advanced Practitioner of CBT. Drawing on these modalities, he guides clients through both external leadership challenges and internal transformation.

With experience coaching leaders in tech, finance, healthcare, and consulting, Lionel offers 1:1 executive coaching, team facilitation, and leadership development programs. His mission: to help leaders unlock their full potential by aligning clarity, capability, and conscious action.