“Having the ambition to be the top people development company in Greece and the Balkans is a major challenge.
And as such a company, your first priority is to consistently train and develop your people to meet client expectations.
This is the promise we hold. In line with that promise, we collaborated with Carl and Boost-Training. Carl played a key role in developing our people within our internal academy. He also brings along valuable tools and great methodologies.”

Dimitris Papadimitriou
Senior Transformation Coach & Co-Founder

“Boost supported our sales team during an important transition to a business unit structure. They provided clear methodologies that helped our people plan more effectively, engage customers more strategically and handle objections with greater confidence. The result was a team that came back from the training sharper, aligned with the new structure and motivated.”

Jeroen Van Der Kelen
Managing director

“I attended a European leadership training program, and Carl played a fundamental role in making it a meaningful experience. I appreciated the diversity of approaches used: from individual tasks to team-based challenges. What stood out was the ability to customise all materials and activities to our Bridgestone Leadership
principles and company values.
This strong alignment made the learning journey relevant and immediately applicable to our daily leadership practices.”

Elena Mugione
VP West Retail
Center of Excellence

“The full-day session on team dynamics and feedback led by Carl was one of the most effective team-building exercises we have ever experienced. Carl balanced challenge with open discussion and honesty, creating the space for us to gain deep, lasting insights that we continue to benefit from in our day-to-day work.”

Joost Vastenavondt
Chief Growth Officer

“Designed for physicians focused on patient care, this experience with Carl stood out for how he brought attention to something we encounter every day but don’t always prioritize: how we communicate. By emphasizing how to adapt communication to each patient’s personality, he showed how the right approach can truly strengthen trust and improve quality of care. His insights were clear, impactful, and immediately applicable, both with patients and within our teams.”

Estela Silván
Marketing & Education Manager

“The team dynamics workshop was insightful and highly impactful. It clearly explained what psychological safety is, why it matters, and how it directly influences team performance and trust. I particularly valued the practical discussions and the opportunity to create a shared team action plan, giving us clear, realistic steps to start building a culture where everyone feels safe to contribute, be heard, and truly belong”

Michelle Smith
Endovascular Divisional Manager

“Boost-Training helped our team build stronger, more consistent sales, support, and leadership approaches while still allowing everyone to keep their individual styles. Carl quickly understood our team dynamics and got everyone thinking differently in a warm and engaging way. The sessions were engaging, and directly applicable to our day-to-day. If only we could clone Carl for the US.”

Tara Kallembach
Head of Sales

“During the training organised for our leadership team, Carl quickly created an atmosphere of trust that encouraged open and honest discussion. Through his listening skills and the quality of his interventions, he enabled the group to reflect deeply and turn those reflections into a clear and practical action plan.”

Murielle Wattlez
HR Director

“We have been working with Boost for over three years, and with Carl Jacobs for over ten years, and have always been very satisfied, both we and our clients. In their work, they bring meticulous preparation, the impact of their expertise, and their training know-how. As a result, participants’ behaviour changes in a lasting way.

Frédérik Barbieux
Owner