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Stallone-Obaraemi Samuel, Chartered MCIPD, MCIPM

Organisational Change Consultant | Behavioural Communication Coach | Corporate Trainer & Keynote Speaker

Stallone-Obaraemi Samuel is a globally experienced organisational change consultant and executive coach with nearly two decades of leadership across public sector institutions, multinational organisations, and strategic partnerships. A Chartered Member of both the CIPD (UK) and CIPM (Nigeria), he brings a rare dual perspective to people strategy, talent development, and workforce transformation.

With a background in HR transformation and programme management, Stallone-Obaraemi blends operational rigour with behavioural insight to drive culture change, embed values-led leadership, and enable high-performing teams. His work is grounded in strategic thinking and behavioural science, helping organisations navigate change while strengthening cohesion, communication, and leadership capability.

As a Certified Maxwell Leadership Coach and Behavioural Analysis Trainer, he specialises in coaching leaders to communicate with clarity, lead with authenticity, and foster environments of trust and collaboration. His facilitation style is engaging, practical, and results-driven, designed to unlock potential and deliver measurable impact.

Stallone-Obaraemi also brings deep expertise in public speaking and executive presence, having coached professionals across industries and served in leadership roles within global communication networks. His coaching programmes are tailored for SMEs and growth-focused organisations seeking to scale leadership capacity and build resilient, connected teams.

At DellonVille, Stallone-Obaraemi serves as Strategic Faculty Lead, guiding the development of leadership, communication, and behavioural training programmes that empower organisations to thrive in dynamic environments.

Gerry Dunn

Mediator | Communication Strategist | Conflict Resolution Specialist

Gerry Dunn is a seasoned mediation and communication expert with over two decades of experience helping individuals, teams, and organisations navigate conflict, improve dialogue, and build stronger working relationships.

As a registered mediator with Scottish Mediation, Gerry has worked extensively across the public, private, and third sectors, supporting small and medium-sized enterprises (SMEs) in resolving workplace disputes, enhancing team dynamics, and fostering collaborative cultures. His approach is rooted in empathy, clarity, and a deep understanding of human behaviour.

Gerry’s background includes significant leadership roles in education and community development, where he has led diverse teams and facilitated complex conversations around change, inclusion, and performance. His ability to create safe, respectful spaces for dialogue makes him a trusted partner for organisations seeking to reduce conflict and improve communication at all levels.

In addition to his mediation work, Gerry is a skilled trainer and facilitator, delivering workshops on conflict resolution, effective communication, and leadership development. His sessions are known for being practical, engaging, and tailored to the real-world challenges faced by today’s professionals.

Gerry’s mission is simple: to help people talk, listen, and work better together. Whether supporting a team through a difficult transition or coaching leaders to communicate with greater impact, he brings a calm, solutions-focused presence that inspires trust and drives results.

Kate Onakomaiya

Leadership Coach | Bilingual Consultant | Communication Strategist - United Kingdom / Nigeria

Kate Onakomaiya is a dynamic leadership coach and communication strategist with over 24 years of experience spanning corporate leadership, project management, and entrepreneurship. She is known for her people-centred approach and her ability to help leaders and teams unlock their full potential through practical, values-driven development.

As a Certified Bilingual Coach and Training Consultant, Kate works with mid- to senior-level professionals across industries and geographies; delivering coaching and consulting services in both English and French. Her work focuses on strengthening leadership presence, improving communication, and fostering team cohesion to drive sustainable success.

Kate’s coaching philosophy is rooted in helping individuals and organisations harness their strengths, build interdependent teams, and create environments where people thrive. Her clients consistently report increased clarity, confidence, and performance—both personally and professionally.

She is the author of The Growing Life and brings a global perspective to her work, having partnered with leaders across Africa, Europe, and beyond. Her facilitation style is engaging, insightful, and grounded in behavioural science.

Kate is a:

- Certified Maxwell Leadership Coach, Speaker & Trainer

- Certified Strengths Coach and People Acuity Guide

- Certified DISC Human Behaviour Consultant

- Goldman Sachs 10,000 Women Fellow

- Member, Chartered Institute of Personnel Management (CIPM)

- Member, International Coaching Federation (ICF), UK

- Mentor, Help to Grow Programme, UK

- Global Priority Values Specialist.

Areas of Expertise:

Leadership and personal development coaching

Team and individual communication enhancement

DISC behavioural assessments and coaching

Work-life balance and wellbeing strategies

Accountability partnerships and strategic sounding board support

Maria Warren, Chartered MCIPD

Wellbeing & People Leadership Coach | HR Strategist

Maria Warren is a seasoned HR strategist and wellbeing coach with over 30 years of experience in people management, leadership development, and solo parenting advocacy. As a Chartered Member of the CIPD, Maria brings a unique blend of corporate HR expertise and personal insight to her coaching practice, supporting individuals and organisations in building healthier, more human-centred workplaces.

Her approach is rooted in practical, preventative people leadership. Maria specialises in coaching business owners, leadership teams, and managers to create psychologically safe environments, reduce workplace conflict, and foster cultures of dignity, respect, and accountability. She is known for translating policy into practice; empowering leaders to lead with clarity, compassion, and confidence.

Maria’s work spans preventative HR training, solution-focused coaching, and restorative support for teams navigating change, conflict, or formal HR processes. Her workshops cover topics such as employment rights, psychological safety, equity and inclusion, and leadership behaviour, delivered both online and in team settings.

In addition, Maria is a passionate advocate for solo parents. Drawing from her own lived experience, she coaches and mentors solo caregivers to rediscover their aspirations, build resilience, and create thriving home environments.

Maria serves as a faculty member focused on wellbeing, leadership culture, and restorative coaching, helping clients build workplaces where people flourish.

Partnered with Global Clients

Clients we have worked with accross the world

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DellonVille Global Associates Ltd is a UK-based leadership consulting firm committed to excellence, transformation, and empowerment. We specialise in high-impact training, executive coaching, keynote speaking, and strategic consulting for organisations seeking measurable growth through people development.

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