Our People
The people behind the work
Sladen is a global network of experienced practitioners working across more than 20 countries.
Our people bring deep expertise across psychology, leadership, systems, storytelling, data and design - and are united by how we work, not by one single discipline.
What matters most isn't role or background, but how our team listen, think and work with others - especially when things are complex.
How we work together
We're deliberate about who works with whom. The people you work with are chosen carefully - not just for their expertise, but for how they think, relate and respond in complex situations. That attention to chemistry is intentional. It's how we build relationships and is what allows us to challenge thinking without creating defensiveness.
A global network, locally grounded
Our community spans more than 20 countries and over 15 languages. This isn't just about translation - it's about cultural understanding and local context. It means the work lands with credibility, wherever in the world it is happening.
The humans behind the work
The way we think, connect and lead is shaped by more than professional experience alone. Hover over the profiles below to discover the passions and interests that shape our people beyond their work.
Leadership
The Sladen Leadership Team holds responsibility for the direction, integrity and sustainability of the work.
Richard Colley
Founder & CVO (Chief Visionary Officer)
Sonja Skopp
CEO (Chief Engagement Officer)
Julie Colley
Co-founder and Advisor
Iris Birnkammer
COO and Business Partner
Benj Johns
CFO (Chief Financial Officer)
The Sladen Network
Beyond the leadership team sits our wider community - facilitators, coaches, designers and thinkers whose professional experience is informed by varied paths and perspectives. That mix of experience shows in how the work is designed, facilitated and delivered.
Alex Germeau
Alexandra Beschastnaya
Andreina Parisi-Amon
Anna Copeland
"Everybody was encouraged - but never forced - to speak up. Super powerful training."
Annabel Park
Arquella Hargrove
Carol Evans
Carolin Schwarz
Carolle Mueller
Chris Danner
Clare Moore
Denise Wallace
Doug Cameron
Eddie Jacobs
"The openness of the conversation and the environment created for honest discussion was exceptional."
Gaz Roberts
Gerardo Kuhlmann
Gerlinde Jayme
Giulio Tamacoldi
"Rachel does a great job making everyone feel seen and heard."
Graham Smith
Hannah Dickinson
Helen Beckingham
James Beckingham
James Huyton
Jan Brause
Jason Harman
Jeremy Grogono
Jorge Gibbons
Juli Nemtsov
"Simone and Clare were wonderful - engaging, thoughtful and extremely helpful throughout the process."
Karina Leyser
Klaus Schmitt
Louise Yates
Lynsey Archer
"Sue is an amazing moderator with just the right level of energy and flexibility to adapt to what the team needed."
Mariana Ribeiro
Mariane Mesquita
Masa Fujino
Natalie Mendez
Nicole Dargent
Pawel Gruninski
Piers Carter
Pip Clarke
Rachel Nuttal
Rez Kempton
"The facilitator created such an open and safe environment for transparent conversations."
Rob Pitt
Roderic Yapp
Romaine Johnstone
Sandra Dreyer
"Courage in even having the event… a safe environment was created and fostered throughout."
Sarah Longbottom
Silke Brandt-Schmidt
Silke Irmscher
Simone Douani
Steve Tester
Sue Firth
Wendy Wu
Whitney Breer
Yogesh Dani
"Jeremy is engaging, relevant and brings everyone into the dialogue."
Locally grounded, globally connected.
Across the network, our people speak more than 15 languages fluently. Alongside this, they bring cultural understanding that helps ensure the work feels relevant, inclusive and grounded wherever it's delivered.
In Numbers
