Real-world transformation, narrated by the leaders who navigated it.
Testimonials
Built on Trust
Shared Vision, Measurable Results.
At ACE & Consulting, we view every engagement as a long-term partnership. Our clients include multi-generational family offices, regional corporations, and non-profit boards who trust us to navigate their most critical transitions.
While we prioritize client confidentiality, the following leaders have graciously shared their experiences to demonstrate the tangible impact of the 8Ps Enterprise Transformation Framework in the real world.
Ling Jia Hao – Founder, Fireplace
“David mentors with the heart of a father. Interactions with him are filled with kindness and gentleness. He values relationships and the well-being of those he mentors, shown through how deeply he listens and seeks to understand the heart and situation of an individual.
He is not quick to give advice despite his vast life, marriage, and corporate experience, but desires a two-way relationship where genuine sharing is valued. When needed, he offers wisdom and perspective with sincerity.
His mentoring is rooted not in results, but in unconditional love — aiming not only for outward success but inner wholeness and identity. The best mentors demonstrate more than they teach, and David’s life itself models what he imparts.”
Randy Khoo – Founder & CEO, Rescapr Pte Ltd
“David has been my mentor for the past few months, and I have benefitted greatly in both my professional career and my family life. He taught me that a thriving business is deeply connected to a thriving home.
Through his guidance, I learned the importance of maintaining a healthy work-life balance, managing cash flow effectively, and focusing my efforts on areas that bring meaningful returns.
His thought-provoking questions opened new opportunities I might have missed. David’s wisdom, experience, and genuine care have strengthened me as a leader and as a person.”
Lun Wei Ming – Founder, Haven Coliving; Senior Pastor-to-be, Kingdom Community Church
“Since 2021, David has been my mentor — guiding me in business, leadership, and Christian spirituality. His breadth of experience and genuine care have profoundly shaped my growth.
David listens deeply, empathises sincerely, and asks thoughtful questions that challenge my perspectives. He helped me integrate different areas of my life into a cohesive whole, and to see clarity where I once felt scattered.
What sets him apart is his heart — he truly desires to see his mentees flourish. His time, generosity, and wisdom have inspired confidence and purpose in my leadership journey.”
Malcolm Chua – Founder, Dream Network
“From the very beginning, David’s unwavering belief in my abilities became the catalyst for transformation. Through our regular meetings, he took the time to understand my dreams, aspirations, and challenges, providing invaluable wisdom to navigate life and leadership.
In moments of doubt, he reminded me of my strengths and helped me push beyond my limitations. His mentorship has transformed my confidence, character, and purpose — inspiring me to give back as a mentor to others.
I will forever be grateful for the immeasurable impact David has had on my life.”
Jane Lee – Founder, The Eden Project
“As a mentor, David brings clarity, focus, and drive to every session. His practical wisdom grounds me as I build my business, while his spiritual insight reminds me to stay centred and purposeful.
David’s counsel bridges both short-term goals and long-term vision, helping me plan with confidence. I see him making a powerful impact in this vocation — especially for young entrepreneurs seeking authentic guidance from someone who has walked the path before them.”
Julia Chan – Founder, Jules
“Before David became my mentor, I spent years searching for direction. Despite courses, books, and reflection, I still felt uncertain about the next phase of my life.
Through his mentorship, David helped me rediscover joy, hope, and purpose. He guided me to identify what truly sparked life within me and offered wisdom grounded in both faith and experience.
Our conversations broke down big dreams into practical steps, helping me see how my strengths could serve others. His belief in me — often stronger than my own — gave me courage to pursue my calling with clarity and conviction.
David’s mentorship has been a gift I will carry for life.”
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Joshua Hong – Co-Founder, Better Dads Malaysia
“Dr. David Ang has played a transformative role in my personal and professional development. Before meeting him, my past experiences felt disconnected. Through his guidance, I learned to see my journey as a cohesive whole — each chapter with purpose and meaning.
David’s mentorship goes beyond coaching; he invests his heart in helping others find clarity, confidence, and renewed direction. His belief in my potential gave me the courage to pursue new horizons and a clearer sense of purpose.”
Poj – Entrepreneur & Social Innovator (Thailand)
“I want to thank David for being a kind and patient mentor — a true spiritual father who helped me ‘be’ rather than just ‘do’.
He taught me three keys: The Father’s Heart, The Filled, and The Flow.
Through his example, I learned to move from understanding to feeling, to live from restedness, and to let joy overflow naturally into action — what I call ‘prophetic automatic mode’.
David’s mentorship changed how I live, work, and relate — bringing peace, joy, and greater effectiveness in every area of life.”
Joel Tan - Founder & CEO of More Than a Swing
As a badminton coach and life coach, I’ve always been confident in my ability to guide people. Coaching itself has never been the problem. But running a business on my own is a completely different challenge. It gets lonely at times, and being a solopreneur means I don’t always have someone to process decisions with or give me another perspective. That’s where David has been a huge help.
He doesn’t just give me answers. He helps me see things from angles I never considered, and he brings a sense of clarity when I’m overwhelmed. His years of experience in business really showed up, and I’ve grown a lot simply by having someone who understands what it takes to run something from the ground up.
What I appreciate even more is that David brings Christian values into the mentoring process. As someone who wants to integrate my faith with my work, having a mentor who understands that and can speak into it has been incredibly meaningful.
On a personal level, I genuinely feel safe sharing with him. He listens, he cares, and he truly wants to see me do well. It’s rare to find someone who actually roots for your success. Because of David, I’ve gained clarity, confidence, and a clearer sense of direction for both my business and my life.
Suzan Lourdes – MNC Singapore Biz Partner
“My mentoring journey with Dr. David Ang was one of trust, truth, and profound insight. What stood out most was the safe space he created for honest reflection and vulnerability.
He listens with grace and patience — a true Father’s heart — and gently redirects my perspective toward hope and faith. His mentorship motivated me to focus on what I have rather than what I lack, and to use my gifts to bless my community.
To anyone considering a mentoring journey with Dr. Ang — look no further. You are in safe hands.”
Ryan – NS Man
“David has helped me gain a deeper perspective on life and career. Through our conversations, he guided me to focus on what truly matters in each season.
He’s approachable, grounded, and always helps me see things from a brighter, wiser perspective.”
Alvin Chong
“When I first met David, I was exploring counselling because I wanted to help others heal emotionally. Over months of mentorship, he helped me see how God’s hand had been shaping my path all along.
David guided me to recognise my unique experiences and strengths — and how they could make a real difference in people’s lives. His mentorship reignited my sense of purpose and helped me live more meaningfully in my work, community, and faith.”
Testimonies from Ex colleagues
Emily Tan (Veolia)
I have known David for many years, initially as a colleague and later as a friend. As a colleague, David personifies the traits of a servant leader. He treats his colleagues not as co-workers but as members of his extended family, according everyone with respect and honour.
I can still remember vividly the care and reassurance he gave me when I was in a challenging situation many years ago. Anticipating the challenges of balancing work and life, David took a load off my burden by giving me his unwavering support and vote of confidence in my work, which eventually helped me overcome the situation and emerge stronger.
As a leader, David is both nurturing and inspiring. He creates opportunities and career paths for his staff to grow and develop to their fullest potential. This helps to make staff stay engaged with the organisation. In line with his management style of inclusivity, he ensures the well-being of each and every staff member is taken care of, from executives to cleaners. To him, everyone is equal and treated with respect and honour.
Recognising the importance of team cohesion, David has also invested time and resources in organising many activities to build and strengthen esprit de corps amongst employees. For that, he has gained many friends even after they had retired from the organisation.
As a friend, David is generous with his time and hospitality. He embodies the qualities of a sincere and dependable friend, always there for you with a listening ear and words of wisdom. His optimism and positivity in the face of challenges are truly uplifting and encouraging. Not one to back down from a setback, David has demonstrated resilience and perseverance in turning tough situations around, always measured and disciplined in his ways.
Beyond colleagues and friends, David has also given his time and energy to the community at large, contributing his level best to uplifting the lives of the less privileged. With his diverse experience both in the corporate world and as a volunteer in social causes, I am confident of and wish him all the best in his pursuits and endeavours.
Florence Cheung (Veolia)
I am privileged to share my experience as the former personal assistant of David, a remarkable mentor whose impact on my personal and professional growth cannot be overstated. David’s professionalism and unwavering belief in my abilities guided me through challenges and transformed me into a more confident and capable individual.
As a personal assistant, I witnessed first-hand David’s exceptional leadership and business acumen. Despite my initial lack of qualifications and self-doubt, David saw potential in me and provided me with countless opportunities to learn and grow. His belief in my abilities gave me the confidence to overcome challenges and excel in my role. Through his guidance, I developed a strong sense of professionalism and a keen eye for detail.
David’s guidance extended far beyond the professional realm. He was not only a boss but also a considerate mentor who took the time to listen and understand my concerns. Whether it was a work-related issue or a personal challenge, David was always there to lend an empathetic ear and offer valuable advice. His ability to empathise and provide guidance made him an exceptional mentor.
Under David’s guidance, I learned the importance of effective communication and adaptability. He patiently guided me through various tasks and assignments, teaching me the intricacies of the job and providing constructive feedback along the way. His mentorship allowed me to develop a wide range of skills that have been invaluable throughout my career. I also had the opportunity to observe David’s strong business sense and strategic thinking, which inspired me to broaden my knowledge and take on new challenges.
David’s mentorship has had a profound and lasting impact on my professional journey. His belief in my abilities, his guidance, and his unwavering support have shaped me into the confident and competent professional I am today. I am honoured to recommend David as a vocational mentor. He champions and will continue to champion the success of his mentees with the love and sincerity that is greatly needed in such a role.
Thank you, David, for being an exceptional mentor and for your continued dedication to helping others succeed.
Janice Ting (Veolia)
I have known David for more than 12 years, and he has been an integral part of my professional journey.
From the moment David interviewed me for the Human Resource Manager role, I sensed his genuine belief in my potential. Despite my lack of managerial experience, he took a leap of faith and offered me the position, beginning a transformative mentorship journey that I will always cherish.
David’s mentoring extends far beyond the corporate world. Just as he leads with sharp business acumen in the boardroom, he applies the same wisdom and care to guide those working with him.
One memorable instance was before a nerve-wracking presentation when David shared public-speaking advice, including a light-hearted tip to imagine the audience in swimwear to ease tension. This simple advice reflected his approachable nature and genuine desire to see others succeed.
He consistently invested time and energy in my development, creating an environment where I felt safe to ask questions, make mistakes, and learn—sometimes over coffee or green tea. His guidance equipped me with skills and confidence that continue to serve me well.
Even after leaving the organisation, David continues to gather former colleagues for meals and fellowship. He is not just a mentor, but a friend and a big brother figure whose guidance I deeply value.
Philip Tam
I had known David since October 2002, when he became my supervisor and mentor in the Asia headquarters office of a Fortune 500 company in Hong Kong, where I worked as IT Director for Asia & China. I am writing this testimonial to express my sincere gratitude and appreciation for David’s guidance and support throughout our mentoring relationship.
David has been more than a mentor to me. He has been a friend, a role model, and an inspiration. He taught me leadership, problem-solving, management, finance and accounting, communication, and people management and networking. He also demonstrated qualities such as patience, kindness, and integrity—values that have been invaluable to my personal and professional development.
He was always there for me, whether assigning work with clear objectives, allowing me the freedom to lead activities and tasks, helping me resolve issues with passion and encouragement, or reminding me that every challenge is a learning opportunity.
His mentoring made a huge difference in my career and life. He helped me achieve specific goals, including promotion to CIO for Asia & China later in my career. He also helped me grow as a person by boosting my confidence, expanding my perspective, and enriching my experience.
I missed him greatly when he left the company for opportunities in Singapore, but I am happy and proud of him. We continue to keep in touch, and I always look forward to learning from him.
Thank you, David, for being the best mentor I could ever ask for. You have left a lasting impression on me, and I hope to follow your example and mentor others in the future.
Sandra Wong (Veolia)
I had the pleasure, privilege, and honour of working under Mr David Ang for five years from 2006 to 2010. David is a great leader, a compassionate people-person, and a mentor who reflects strong values and character. Despite a hectic schedule, he finds balance between work and family.
He was well-liked across the organisation, creating a culture that felt like one big family with strong team spirit and high morale. His mentoring extended even to interns, many of whom still fondly recall those “good old days.”
David’s concern for his team extended to their families and personal well-being. His willingness to help extended beyond corporate life into community service, church leadership, and volunteering activities.
David has a heart of gold and is an exemplary role model—not only as a leader, but also as a son, husband, father, mentor, and counsellor. Knowing him has been a true blessing.
Jasmine God (Oldham Hall)
David’s heart and passion for mentoring are evident. He sees everyone with potential and giftedness. He guides, mentors, and inspires others to reach greater heights.
He takes time to listen, spending hours when needed and never rushing to give advice. David believes deeply in what he does and truly mentors with his heart.
Annie Lau (Oldham Hall)
I have known David for about ten years. He is a wise and caring mentor who takes time to listen and bring people from different walks of life together to achieve common goals.
I am especially grateful for his guidance in helping me make one of the most important decisions of my life—believing in Christ—which gave me purpose, strength, and community.
I am truly thankful to David for his mentorship and care.
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