Client feedback
What senior leaders say about working with Sacher AI
CTOs, founders, VPs, and professors. Here is what people who have worked with us say about the impact we made.
I had the pleasure of working closely with Paul and the Sacher AI team during a pivotal period at Numan. When Paul joined, we had ambition but little clarity around AI, behavioural change, or research. Through his leadership, experience, and drive, that changed rapidly and meaningfully.
Paul played a foundational role in shaping strategy across all three domains and helped us build the teams that now lead our AI, behavioural medicine, and research work. His impact at Numan has been profound and lasting.
Jamie Smith Webb
CTO, Numan
Sacher AI quickly felt like an extension of our team. Due to the strength of their behavioural science, LLM, and healthcare expertise, they were able to quickly understand our behavioural science approaches and AI intentions, and help to build something impactful.
User safety was prioritised and the operational tests to check the interactions and outcomes were really thorough. I recommend them to other health technology innovators.
Grace Gimson
Co-founder and CEO, Holly Health
I highly recommend Dr Sacher for any organisation seeking to elevate the science behind their value proposition and transform long-term patient satisfaction. From the moment we hired Paul and the Sacher AI team, it was clear that their wealth of experience in behaviour change, weight loss, and data science would greatly benefit our organisation, healthcare providers, and patients.
Their transformative work in creating our behaviour change programme has had astonishing results. Our patients have been able to sustain 95% of their weight loss even 12 months after the programme's end, which is truly impressive considering the chronic nature of obesity.
Benoit Chardon
Chief Commercial Officer, Allurion Technologies
Dr Sacher provided insightful, data-driven, behavioural science-based subject matter expertise for patients and providers. His impact on the development of our predictive AI model helped identify patients who were at risk of not achieving their weight loss goals, leading to earlier intervention.
He also played a key role in developing our AI virtual coach, including the strategy, prompt engineering, quality assurance, safety monitoring, and the evaluation and interpretation of performance metrics.
Chris Martinez
VP Software Engineering, Allurion Technologies
I have worked with Dr Sacher for over 5 years. He has a unique and highly valued skill set that enables him to operate extremely effectively across academic and commercial settings to drive the translation of basic research into practice.
He helps bring science to the real world in a way that changes the lives of millions of people and his communication and analytical skills help different experts work together to develop new solutions for societal problems.
Prof James Stubbs
Professor of Appetite and Energy Balance, University of Leeds
Dr Sacher brings fun, creative thinking, and energy to anything that he is working on. The application and utilisation of data and clinical evidence throughout the product lifecycle can be hard going, but Paul has a flair for bringing insight to life.
As an expert in health, wellness, product development, clinical evaluation, and digital, Paul is a fabulous person to have within or alongside a senior leadership team.
Robyn Glen
Digital Officer, Slimming World
Paul is one of the most talented and driven experts in nutrition, behavioural medicine, and lifestyle modification in the field today. A widely published scientist in his own right, he has a great command of a highly dynamic research field.
He is also a thoughtful and kind leader who knows how to assemble teams that march toward the same goal. It was a pleasure working with him to build the best-in-class programme we have at Allurion.
Shantanu Gaur
Co-founder and CEO, Allurion
Paul is the rare expert who combines a deep understanding of the latest academic research with a knack for crafting impactful digital experiences. He seamlessly blends the most recent insights from behavioural science with a digital mindset.
He played a pivotal role in building and launching our AI weight loss coach. His expertise defined the strategy, evaluation, and coaching approach, ensuring it delivers meaningful, accurate, and safe guidance.
Joe Ranft
UX and product leader, Allurion
Through his deep expertise in behaviour change, obesity management, and patient care, Paul developed a holistic and novel behaviour change strategy and vision for our digital product. His dedication to research, science, and evidence-based practices was evident in every project.
He stayed on top of industry advancements, including generative AI, and ensured our strategies were innovative while grounded in solid scientific principles.
Martha Neary
Behavioural science, Allurion