Over 3,500 leaders have entrusted us with their leadership journeys.
See what they had to say.

Since 2010, we have shouldered the  leadership journeys of over 3,500 leaders and over 150 organizations.

Read what our clients have to say about us.

N.F., Executive Leader

Mirella has perfected the art of executive coaching by combining her deep knowledge of mental schema, her understanding of business operations and structures, and her ability to quickly grasp her coachees’ abilities, capabilities and environment.

Throughout my coaching journey with her, she challenged me tremendously and encouraged me to experiment new ways in showing up and in deploying my leadership fully and authentically. This was always done with respect, kindness, and support.


I had the pleasure of participating in the Leaders Embodying AIR initiative consisting of leadership training sessions and coaching led by Papillon MDC, and it was an incredibly transformative experience. Specifically, Stefano possesses a remarkable ability to distill complex leadership concepts into actionable insights, making the training both engaging and highly practical. Thanks to Stefano, Mirella, and Kim, I feel more confident in my leadership abilities and equipped with a toolkit of strategies to inspire and guide my team effectively. I highly recommend this training to anyone looking to elevate their leadership skills and make a meaningful impact in their organization. ‎ ‎‎‎

Rolf Karlsson, Director – Software Engineering

Stefano is an excellent trainer who provides many personal examples. The course has offered me valuable insights that I am now applying in my daily work. While many aspects require constant effort, I now have some triggers that help me stay on track. Thank you. ‎ ‎‎‎

Keesha Davis, Alstom

This learning experience was unique because I was able to learn from the executive coaching while also learning about the company at the same time. Being able to partner with different leaders having various backgrounds from across the globe provided a glance into how we can impact our company and truly be the change we want to see. I appreciate working with Stefano especially because he did not shy away from using his own, personal experiences to connect with our Cohort. It made him more relatable. ‎

S. Palacios, Alstom

An excellent course! Very interactive, with a lot of participation, very complete, and very practical! Thank you very much for the sessions, Stefano, I truly enjoyed the entire course and group coaching, and aside from the fact that this will help us to be better leaders, it will help us to become better people! ‎ ‎‎‎

Yalena Cerrud

I’m very happy to have had the opportunity to participate in this high-caliber program for leaders. The learning will be very useful in my daily activities as project director. It was an incredible experience to carve out time and take advantage of this opportunity so I could invest in my personal and professional development by learning tools and strategies for effective leadership. Also, I would like to give a special thanks to Stefano Di Lollo. He is an incredible facilitator, leader, and coach who was always encouraging our participation and employing a very effective teaching style. ‎ ‎‎‎

Pedro Machado

I thoroughly enjoyed the program. The topics covered made me reflect deeply on my team management approach, the discussions with my team yielded valuable insights, and the in-person component was fantastic. Obrigado, Stefano! ‎ ‎‎‎

Diego Nitta, Alstom

This training was a completely unique leadership experience, emphasizing internal transformation. I truly feel like a completely different person today because of this opportunity. Thank you, Stefano and the Papillon team. ‎ ‎‎‎

Alstom Leader Embodying AIR

This was an excellent leadership training that I would recommend for all managers! Thank you, Stefano & Kim!!!!! ‎ ‎‎‎


I learned a lot from Mr. Di Lollo about taking my collaboration to another level. I truly think this will help me. I truly enjoyed the creative exercises and practice. I would recommend this program to others within Pratt because there are so many people that could benefit from this learning. ‎ ‎‎‎

David Bélanger, PWC, Mirabel Plant 15

I loved the breakout rooms, I would have actually liked even more time practicing in them. I really appreciated the virtual format and that Stefano broke it up in a convenient way which included a 1.5 hr lunch period. This program was of great value to me and my team. Thank you, Stefano. ‎ ‎‎‎

Engineering, PWC

Excellent content about being concise and invoking a different thought process during conversations which addressed the the challenges of providing feedback, paying attention, and empowering people to find their own solutions rather than problem-solving for them. Stefano kept things fun and relevant to real workplace realities. I like the 5-step model q-card. ‎ ‎‎‎

Stefano, this is more of a comment I want to share than a testimonial. From the first session, I could see the skills that were used with me during my coaching sessions with my manager. The techniques that were used during these sessions left me with a very positive outlook regarding my career goals. I am excited to use these tools with my team.‎ ‎ ‎‎‎

Pratt & Whitney

‎Very good course that helps us learn to switch our mindset from a technical person to a coach/manager role. Thank you so much, Stefano. ‎ ‎‎‎

Manager, Raytheon Technologies

‎Class content was clear and nicely delivered. Concrete examples and compelling format – Easy to integrate.‎ ‎ ‎‎‎

Senior Executive, P&WC, April 2024

The content shared was very interesting, well-structured, and to the point.  The team’s interactions were also good. An excellent experience overall. Stefano’s answers to my questions were helpful.‎ ‎ ‎‎‎

Pratt & Whitney Canada

Great course! Really appreciate Stefano’s enthusiasm! Well done keeping us engaged in a virtual class. I’ll recommend this course!!!‎ ‎ ‎


The course (Navigational Conversations) is very engaging and equips the participants with the proper skill set to install a constructive communication culture. Thanks, Stefano!‎ ‎ ‎

M.R., Pratt & Whitney

I have to confess, the idea of attending an all-day, in-person workshop on a Monday of all days, had me concerned about my workload management for the upcoming week. However, I’m so pleased that I took part! Stefano’s approach in encouraging us to think about and explore aspects often neglected in our day-to-day routines was truly valuable. I’m confident I can improve some relationships with colleagues and even some external suppliers that I’ve been avoiding because I wasn’t sure how to approach these uncomfortable situations. I enjoyed this program on collaboration using a coaching approach. Thanks.

Alstom leader embodying AIR

I consider myself incredibly fortunate to have participated in the Alstom leadership program by Papillon MDC, and I extend my heartfelt thanks to Mirella and Stefano for this invaluable experience. Initially, I harbored some skepticism, particularly regarding topics concerning empathy in the workplace. However, as I opened my mind to the depth and creativity infused into the program, my doubts were dispelled. While the program primarily focused on work-related aspects, it gradually provided insights that not only enhanced my professional skills but also enriched my personal life. I found myself becoming a better individual, a more attentive parent, and ultimately, a more effective leader. I am deeply grateful for this transformative learning journey, which continues to impact me positively.

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