Let's Make a Serious Change
WHAT IS LSP?
TRAINING WITH US
CALENDAR
Meet the trainers
Why Organizations Struggle
Most organizations don’t struggle because they lack ideas. They struggle because decisions are fragmented, conversations stay superficial, and change doesn’t translate into action.
Serious Change® exists to close that gap.
We design executive decision-making, alignment, and change processes that work in real business contexts—using LEGO® SERIOUS PLAY® and experiential methodologies as sophisticated languages for critical thinking, not as superficial exercises.
How We Work
The Intersection of Strategy, Systems, and Human Behavior
Our proprietary framework bridges the gap between abstract corporate strategy and ground-level execution. We combine:

LEGO SERIOUS PLAY
We use the methodology not as a creativity tool, but as a rigorous language for thinking that makes hidden mental models visible and surfaces unstated operational assumptions.

Systems Thinking
We diagnose structural friction to understand organizational complexity and interdependencies, ensuring we address the system design rather than blaming individuals.

Change Design
We intentionally design executive conversations to translate collective insights into binding decisions and disciplined execution.
The result isn’t just better workshops. It’s better strategic outcomes.
Explore Upcoming U.S. Foundation Trainings
Master the official Association of Master Trainers (AMT) Foundation Training in the LEGO® SERIOUS PLAY® method. Designed for leaders, consultants, and change agents committed to driving real organizational outcomes, our upcoming certification cohorts across the United States are led directly by our trainers in the next cities.

CALIFORNIA
Jan 25 - 29 | San Diego
with Gloria de León
May 03 - 07 San Francisco
with Matthias Renner
May 17 - 21 | San Diego
with Gloria de León
June 07 - 11 San Francisco
with Michel Cloosterman
Sep 13 - 17 | San Diego
with Gloria de León
ILLINOIS
Feb 15 - 19 | Chicago
with Matthias Renner
March 15 - 19 | Chicago
with Michel Cloosterman
MASSACHUSETTS
March 22 - 26 | Boston
with Michel Cloosterman
Aug 30 - Sep 03 |Boston
with Matthias Renner
MICHIGAN
Sep 07 - 10 | Detroit
with Matthias Renner
Oct 12 - 15 | Detroit
with Michel Cloosterman
PENNSYLVANIA
March 08 - 12 | Philadelphia
with Gloria de León
July 12 - 16 | Philadelphia
with Gloria de León
Nov 15 - 19 | Philadelphia
with Gloria de León
TEXAS
Feb 08 - 12 | Houston
with Matthias Renner
Feb 22 - 26 | Dallas
with Gloria de León
April 12 - 16 | Austin
with Gloria de León
June 14 - 18 | Houston
with Michel Cloosterman
June 21 - 25 | Dallas
with Gloria de León
Aug 16 - 20 | Austin
with Gloria de León
Oct 18 - 22 | Dallas
with Gloria de León
Dec 06 - 10 | Austin
with Gloria de León
WASHINGTON
May 10 - 14 | Seattle
with Matthias Renner
Oct 04 - 08 | Seattle
with Michel Cloosterman
Who is it for
Designed for professionals who need to drive measurable progress in complex, high-stakes environments:
Consultants & Practitioners
Professionals seeking a rigorous, strategic methodology to integrate experiential facilitation directly into client engagements.
Leaders & Transformation Teams
Executives and change agents who require faster stakeholder alignment, reduced friction, and higher-quality strategic decisions.
Public-Sector, Non-Profit & Veteran Organizations
eams operating in complex, mission-critical environments where high trust and collective clarity are essential.
Educators, Researchers & DEI Professionals
Specialists applying hands-on structural learning to advance collaboration, complex systems, and inclusive dialogue.
Gloria de León
Trainer of Facilitators
Globally certified and founder of Ad Hoc Advisory. With over 30 years of experience, she integrates Systems Management and Change Design to train professionals in treating the LEGO® Serious Play method as an adaptive decision-making system. Co-author of Future Building® and recognized by the UN (SDGs) for her impact on global agents of change.
Michel Cloosterman
Trainer of Facilitators
Publisher of LSP Magazine. Leveraging a career in organizational development, he has trained and coached hundreds of professionals across Europe and the Middle East. His approach focuses on the essentials of facilitation ethics, rigorous process design, and ensuring facilitators can translate complex models into actionable corporate strategy.

Matthias Renner
Trainer of Facilitators
An expert in the Association of Master Trainers (AMT) method dedicated to the professionalization of the industry. He rejects "crash courses" and superficial dynamics, instead training successful facilitators how to design bespoke, high-impact workshop architectures specifically for CEOs, leaders, and organizational developers facing high-stakes strategy and transformation processes.
