ABOUT

HELPING LEADERS EXECUTE In a complex world

“I have been fortunate to lead Royal Marines in the most complex and uncertain environments and I’ve had to get comfortable making decisions under pressure based on imperfect information. I believe that the modern leader faces similar challenges and the reason my Organisation exists is to provide practical insights to help you navigate these challenges.”

What defines a Leadership Capital team member?

We don’t believe exceptional outcomes are possible without exceptional people. Every member of the Leadership Capital team has been in the arena — leading in demanding environments, making decisions under pressure, and delivering results when the stakes were high. We bring real-world experience, not theory, combining military, commercial, and academic disciplines to help our clients lead with clarity and execute their value creation plans with precision.

Our team is defined by six shared strengths:

  1. Credibility through experience
    Every team member has led in high-pressure environments (military, elite sport, global business). They’ve done it, not just studied it.
  2. Execution and results focus
    The emphasis is always on turning strategy into disciplined action and measurable outcomes.
  3. Adaptability and resilience
    Thriving in uncertainty, operating under pressure, and maintaining clarity when conditions change.
  4. Human performance and psychology
    Deep understanding of how to lead people, build trust, and sustain performance in complex systems.
  5. Cross-domain perspective
    The blend of military discipline, commercial acumen, and academic insight creates a distinctive, practical approach.
  6. Partnership mindset
    The tone is one of collaboration — working alongside leaders providing challenge and support, not lecturing from the sidelines.
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Roderic Yapp

Director

Roderic is a leadership and execution specialist who helps organisations create the conditions for high performance. A former Royal Marine Commando Officer with operational experience in Afghanistan, Somalia and Libya, he has spent the past decade supporting senior leaders and private equity–backed businesses to align their teams, sharpen decision-making and deliver their value-creation plans with discipline.

After leaving the military, Roderic held commercial leadership roles at Argus Media, Urenco and Harlequins Rugby Club, where he developed a deep understanding of how organisations grow, scale and stagnate. His work focuses on translating strategy into action — building clarity of intent, strengthening accountability, and embedding the rhythms and behaviours that drive consistent execution in complex, fast-moving environments.

As the Founder of Leadership Capital, Roderic partners with mid-market and PE-backed organisations across the UK and Europe, supporting CEOs, executive teams and boards through periods of transformation, growth and cultural change. His clients include KKR, Partners Group, Three Hills Capital, Oktra, Biosynth, Boatfolk, Faradion, OBEX and a range of founder-led businesses. He regularly designs and delivers executive offsites, leadership development programmes and retained coaching engagements focused on performance, resilience and organisational alignment.

Roderic’s approach blends operational discipline with behavioural insight, drawing on experience in elite military units, high-performance sport and commercial scale-ups. A strong believer in reflective practice, he provides every client with a leadership journal to capture insights, build self-awareness and turn learning into sustained behaviour change.

Based in Gloucestershire, with his wife and children, Roderic remains active within the Royal Marines community and is the founder of a growing network of military veterans working in private equity. He is passionate about helping leaders create clarity, maintain momentum and deliver exceptional results over the long term.

Graham Smith

Executive Coach and Change Management Consultant

Graham is an Executive Coach and Change Management Consultant who specialises in turning strategy into action. He combines a decade as a Royal Marine Commando with over 25 years in organisational development, bringing deep expertise in building high-performance teams and embedding processes that deliver lasting results.

He has led numerous leadership development and organisational change projects across the UK and internationally, supporting clients to simplify complexity and implement strategy execution tools that endure long after the engagement. His approach emphasises four key principles for leaders in today’s fast-paced environment: agility, authenticity, alignment and autonomy.

Graham has designed and delivered the flagship Leadership Plus module on the Warwick Business School MBA programme for the past eight years, developing emotionally intelligent leaders equipped to thrive in uncertainty. He has recently partnered with organisations including AMWINS Global Risks, Merck, Bristol Myers Squibb, VW Financial Services, AutoRek, The Carbon Trust, WBS, A4S and the UBT Executive Management Programme.

Based in the South West, Graham balances his professional work with his passion for rugby and the outdoors, spending time in the mountains, rivers and at sea with equal enthusiasm.

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Jed

Jed Stone

Consultant and Coach

Jed is an experienced consultant and coach with a passion for enabling individuals and organisations to achieve higher levels of performance. He spent 25 years in the Royal Marines in a range of operational and instructional roles, including Senior Instructor at Joint Services Mountaineering Training Centres, the Commando Training Centre, the Royal Naval School of Leadership and Management, and the Royal Navy Engineering Centre for Resource and Initiative Training. During this time, he led teams that broke two Guinness World Records and represented Great Britain internationally in sport.

In 2001, Jed joined McKinney Rogers, a global business execution consultancy, where he progressed from Lead Coach to Regional Partner for Africa and India, and later Partner for Europe and the Middle East. Between 2010 and 2015, he led a team delivering more than £5 million annually in sales, working closely with global clients including Walmart, Diageo, Barclays, Kenya Airways, Bacardi, Zain, Kenya Commercial Bank and Grohe. A career highlight was his critical role in establishing the Walmart Leadership Academy in the US. His recent client portfolio includes KPMG, Welltec, Bray, Pentair, H+H, ING Bank, Ambu, Estée Lauder, Maersk, Armacell, Proman, Panasonic, as well as EDF and GE on the £34 billion Hinkley Point project.

Jed lives in Devon with his three daughters and son, and continues to enjoy rugby, mountaineering and skiing

Dom Weldon

Leadership Consultant and Coach

Dom is a leadership consultant and coach who specialises in strategy execution, team development and organisational performance. He brings over 15 years of experience across the Royal Marines, financial services and consulting, combining front-line leadership with commercial insight and a deep understanding of what drives results in complex environments.

He has worked with senior leadership teams across sectors including finance, FMCG, construction, energy, education and sport. Recent clients include Haleon, Allianz, EDF, GE Vernova, NG Bailey and McLaughlin & Harvey. Dom’s approach focuses on creating clarity of direction, building the leadership behaviours needed for high performance, and embedding disciplined, adaptive execution through structured performance cycles.

Dom began his career as a Royal Marines Commando Officer, serving on operations in Afghanistan and Iraq before leaving to join Blackrock then Citi. This broad foundation enables him to support leaders navigating uncertainty, fast growth, and organisational change.

Based in South West London with his wife and son, Dom enjoys travelling, watching rugby, and spending time in the mountains. He is also a committed reader, steadily working through an ever-expanding collection of books.

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Steph

Stephanie Taylor

Executive Coach and Leadership Advisor

Stephanie is an executive coach and leadership advisor who helps leaders deliver impact where it matters most — at board level, in the market, and in their personal lives. She brings deep experience from high-performance environments, having served as a Royal Air Force Officer before stepping into senior leadership roles in both consulting and financial services.

Her early military career included command of 250 engineers at the age of 21 and operational deployments across Africa and the Middle East. She was promoted early for outstanding performance and entrusted with briefing senior leaders, including the UK Prime Minister. She later worked as a consultant to the Metropolitan Police, where she consistently outperformed larger competitors by solving critical problems and building trusted relationships.

Most recently, Stephanie served as a Front Office COO at a Tier 1 investment bank, supporting global trading desks through complexity and change. She now works with senior leaders to build confidence, sharpen decision-making, and embed strategies that deliver sustainable growth.

Stephanie lives in the South East with her husband and two young children. She understands the reality of balancing family life with leadership responsibility and brings empathy and pragmatism to her work with clients navigating similar pressures.

Katie Muldoon

Leadership Consultant and Coach

Katie is a leadership coach and consultant who specialises in organisational culture, innovation, and transformation. She draws on over 20 years of leadership experience across the Royal Air Force, academia, and consulting, underpinned by deep academic credentials and a psychodynamic approach to coaching.

Katie began her career in the RAF, where she held operational roles including patrolling with the Royal Marines and assessing helicopter safety in hostile environments. She later completed postgraduate research at Cambridge University on the evolving role of technology in warfare, before joining PA Consulting to support public sector leaders with digital transformation initiatives.

Her academic background includes a Masters in Aeronautical Engineering, an MPhil in International Relations from Cambridge, and an MBA from Warwick Business School. Katie is also a certified Senior Practitioner with the European Mentoring and Coaching Council and has completed three years of psychoanalytic training with the British Psychotherapy Foundation, bringing rich psychological insight into her work with leaders and teams.

Based in the South West, she enjoys walking across the UK with her family and her dog, Milton.

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Helen

Helen Lunnon-Wood

Psychologist and Performance Coach

Helen is a pilot, psychologist, and performance coach specialising in team dynamics and decision making. With a unique background as one of the first female fast jet pilots in the UK, she has 27 years of experience in leadership, instructional, and operational roles in the Royal Air Force, underpinned by extensive academic study and professional development.

Helen spent over 13 years as a pilot and instructor flying Royal Air Force Fast Jets, which included multiple operational deployments and international exercises. Latterly she worked overseas, firstly as an Air Liaison Officer in the US, and later throughout Europe as a NATO diplomat, where she specialised in cross-cultural military planning and international negotiation.

Alongside an MA in Psychology and an MSc in Psychological Trauma, Helen is a qualified performance coach with the International Coaching Federation and an experienced Programme and Project Manager.  She has recently started working towards her PhD in aviation psychology and human performance.

Helen is dedicated to being an active role model and champion for young people in STEM and aviation. She also volunteers as a Mentor and Trustee for Icarus, a charity supporting military veterans facing immediate mental health and life challenges.

A married mother of two, she embraces the challenge of balancing work and family life and brings this pragmatic and empathetic perspective to her work.

Mark Hardie

Leadership and Human Performance Expert

Mark is a leadership and human performance expert with over 30 years of experience across elite military operations, organisational development and executive coaching. A former Royal Marine Commando Officer, he has led teams in some of the most demanding environments in the world, developing deep expertise in decision-making under pressure, crisis leadership and adaptive performance.

He is the co-creator of the RESeT® approach, which integrates ancient wisdom — including Stoicism — with neuroscience and psychology to help leaders think clearly, respond effectively and sustain resilience in high-pressure environments. His work focuses on improving the quality of team interactions, strengthening ethical leadership, and creating realistic training that prepares organisations to navigate complexity with confidence.

Mark has designed and delivered leadership development and cultural transformation programmes for multinational organisations, and his experience spans sectors from defence and hospitality to professional services and critical national infrastructure. As a Visiting Professor of Leadership Ethics and Professional Practice, he founded the Naval Service Ethics Programme, revitalising leadership and culture across the Royal Navy.

He also contributes to developing future leaders through his work with the Glion Institute of Higher Education, teaching on the Leadership Across Cultures programme for MSc students and the Executive Masters in Hospitality and Business Leadership, where he focuses on leading in uncertain times.

Mark is the author of Think Like a Marine: Anticipate, Adapt, Achieve, where he blends military precision with contemporary organisational psychology to enhance decision-making and team dynamics. His expertise includes diversity and inclusion, human factors, psychological safety, and resilience — all central to enabling teams to turn potential into consistent, high-quality performance.

Mark is an EMCC Master Coach, a Heroic PBC ambassador and coach (ICF), a certified mindfulness and breath-work trainer, a Trauma Risk Management (TRiM) instructor, and a Stress Management Advisor. He coaches leaders across private equity, elite sport and consulting.

Based in the South West, Mark balances his professional work with a love of cooking and an interest in integrating wellbeing practices into everyday performance.

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Gemma

Gemma Walton

Business Support Partner

Gemma is a trusted business support partner and recognised expert in the executive support profession. An award-winning Assistant, speaker, and founder of Portfolio PA, she supports the Leadership Capital team with project management and operational delivery, ensuring programmes run seamlessly from design to completion.

Following a decade as a C-suite Executive PA within FTSE 250 organisations, Gemma established Portfolio PA in 2015. Since then, she has built a high-performing team of fractional VAs who have supported more than 200 clients with the precision and reliability usually reserved for in-house teams. Her approach blends efficiency with emotional intelligence, creating the calm and clarity that come from having world-class operational support.

A three-time winner of Yorkshire VA of the Year and recipient of UK VA of the Year 2023, Gemma is a Fellow of both the Executive & Personal Assistants Association (EPAA) and the Institute of Administrative Management. She is also a contributing author to Executive Support Magazine, a licensed Insights practitioner, and a mentor to aspiring VAs across the UK.

Based in rural North Yorkshire, Gemma enjoys long walks with her husband and their two Bedlington Terriers and brings the same discipline she applies at work to her passion for strength training.

We work with some of the most prestigious leadership teams around.

We develop leaders who understand the context they face and are able to choose their behaviour to generate the best return for the stakeholders & the organisation over the long-term.

Private Equity Funds
Private Equity Funds
Portfolio and Scale-Up Companies
Portfolio and Scale-Up Companies
Banking and Insurance
Banking and Insurance
Wealth and Asset Management
Wealth and Asset Management
SaaS
SaaS
Healthcare and Life Sciences
Healthcare and Life Sciences
Professional Sport
Professional Sport
Luxury Brands
Luxury Brands
Professional Networks and
Membership Organisations
Professional Networks and <br>Membership Organisations
Military and Police
Military and Police

Testimonials