Ergonomics Factory Group
A Legacy of Convergence.
We are the result of a strategic combination of deep behavioral science & rigorous medical engineering. By uniting 30+ years of clinical & commercial insight with global human factors & design excellence, we bridge the gaps between clinical opportunities, technical execution, and market adoption.
Two Roots. One Purpose.
Our intersection of Insight and Execution allows us to align Clinical, R&D, and Commercial teams on a single, joint goal: solving adoption barriers to ensure your solution is built for the market, not just the regulator.
Research Heritage (KDA)
Clinical & Commercial Strategy
30+ years of uncovering the "Why." With unrivalled access to rare disease populations and global patient networks, we bring a legacy of identifying the latent behavioral drivers that define value.
Engineering Heritage (EFTY)
Human Factors & Systems Design
Experts in creating the "How." We have a proven track record of translating complex user inputs into rigorous design controls, audit-ready risk management, and intuitive system solutions.
The Engagement Hubᵀᴹ
Seamless translation from Opportunity to Adoption. We bridge fragmented silos through strategic patient and stakeholder engagement, aligning your teams on a common goal: eliminating adoption barriers. This ensures your product is not only engineered for approval, but built for clinical and commercial success.
Our history
Thirty Years of Securing Innovation.
The Evolution of Adoption-Driven HealthTech Development.
KDA foundation in Frankfurt, Germany
1995
First usability study in Germany
2010
Expansion of study services across the EU
2011
First user study in the USA
2012
Joining AAMI to shape global standards
2015
ISO 9001 and 20252 certification
2016
EFTY foundation in Switzerland
2017
First user study in Africa
2017
Joining the German UPA
2022
Swiss site expansion & ISO 13485 certification
2023
KDA & EFTY become the efty.group
2025
2026
Launch of the Engagement Hub™ - the world’s first adoption-driven healthtech development system
Meet Our Leadership Team.
Andreas Baier, Ph.D.
Principal, Human Factors & Design
The Safety Architect. International Regulatory Affairs Manager (TÜV SÜD), Design Thinking Expert (MIT), and former HF/UE Expert at Novartis & Roche. Andreas ensures your design is not just innovative, but compliant.
Prof. Dr. Margarita Cruz
Principal, Strategy Advisory
The Strategy Expert. Professor of Entrepreneurship at EHL Hospitality Business School and Ph.D. in Economics. Margarita brings rigorous system thinking to product strategy, ensuring your innovation is commercially viable.
Thomas Jahnke
Principal, User & Market Research
The User's Voice. Certified Usability Professional with 20+ years in behavioral research. Thomas specializes in penetrating the surface of 'what users say' to uncover the deep-seated motivations that drive real-world adoption.
Rigor You Can Audit.
Dual-certified to ensure traceability and compliance from Opportunity to Adoption.
ISO 13485:2016
Design Control
ISO 20252:2019
Data Integrity
