Zone 01 / Who we are
Builders, not consultants.
Builder types
Bridge builders
To the AI frontier. Plugged into the one-person unicorns and the agentic edge, where AI-native companies find product-market fit before their first funding round. We filter the signal from the noise, and bring it to you.
Community builders
Tech and AI communities inside Deutsche Telekom. Communities of adaptive leaders across many organisations. Adoption is social, so we build the social structures it needs.
Product builders
Online and offline. Enterprise platforms, agentic systems run daily on our own infrastructure, and once, a burger van called Mother Clucker. We ship, and it shows.
We came together for one mission: new organisational architectures, the ones that let you thrive in a post-AI world.
Zone 02 / The founders
Marcus Druen
Founder · Organisational Architect
25 years as an OD practitioner, facilitator and coach inside blue chips including Microsoft, Telefónica, Sanofi and E.ON. Built Challenger House because the pattern was the same everywhere: the system slows the people it hired to move fast. His craft is making the tacit explicit, the messy middle visible, so a team can actually work with it. Sees AI not as a tool problem but as an organisational design problem. Does the inner work, because you cannot guide people through transition without doing it.
Will challenge you on treating AI as a tool rollout.
André Cramer
Chief Learning & AI Experience Designer
25+ years in tech, from Silicon Valley to Deutsche Telekom, where he led Strategic Communications and the Think Tank for the CTIO board member and co-founded a 500-person community for responsible technology. His work focuses on what AI does to judgment and decision quality. He developed the Plausibility Illusion framework and the cognitive-effects model that lets leaders experience how AI shifts decisions before being taught why. Curator of the DRANBLEIBEN newsletter.
Will challenge your rose-tinted glasses, your judgment of what AI is actually good for, and where the risks live.
Brittney Bean
Builder & Coder · Agentic Systems
Exited serial founder-operator. Builds and implements AI across SMEs and regulated environments, where security, compliance and data governance are not optional. Runs autonomous agents on her own infrastructure and stress-tests frontier tooling most AI consultancies have not heard of yet. The safety net: the person who makes sure what gets built in the room can survive procurement, legal review and IT governance. No corporate background, and that is a feature, not a bug.
Will challenge you to talk less, plan less, look at fewer slides, and get your hands dirty. Do it, do it together, learn fast.
Zone 03 / The materials
The three of us are the core configuration of every house we co-build. Behind us stands a global bench of AI learning instructors, agentic builders, coders and specialists, and we scale the crew when the build demands it.
Challenger House is a startup, deliberately. But we are not starting from a blank plot. We reuse, recompose and rebuild from materials won over decades of transformation and venture work with: