Day One is a global healthcare insight and strategy agency at the forefront of tech-led innovation

We bring together technology and human intelligence to enhance existing approaches and deliver deeper insights, more agility and greater engagement.

Day One

Today’s dynamic healthcare environment deserves brave new thinking


Day One is more than just a name
It's our promise to start each day as if it's our first. We are energetic and creative problem solvers who love creating bespoke solutions for business challenges.

Insights powered by technology
We use the latest innovations, including cutting-edge research tools and generative AI, to keep our clients ahead. Our goal is to deeply understand healthcare professionals and patients – their emotions, motivations, and behaviours.

Specialism in digital strategy
From omnichannel to digital therapeutics (DTx), we offer the personal attention, agility and flexibility required to launch successful digital innovations in healthcare.


Day One is proud
to be a
100% women owned and managed business

Hannah Mann and Abigail Stuart launched Day One in 2019 to harness the power of technology to drive innovation in research, insights and strategy.

Together they bring many decades of healthcare, market research and consulting experience to support your confident decision making.

In 2021 they launched a US office, based in New York, to deliver their new approaches to US clients.

Day One Founders

We bring fresh thinking by integrating new methodologies, processes and techniques with established approaches.

Tech Human


Technology helps us to deliver faster, unlock new insights and engage with people in more interesting ways.

We combine traditional research with approaches such as voice technology, unconscious emotion and attention capture.


Human intelligence

We help you understand healthcare professionals and patients as people….their hopes, fears, emotions, motivations and behaviours.

Our foundations in behavioural science and psychology allow us to better make sense of decision-making processes.


Inspiring change across
the product life-cycle


Exploratory insight
Provide pre-launch understanding of the market and customer landscape.


Customer experience
Map the customer journey and buying process.

Identify behavioural biases and leverage points.


Brand development
Spark insights and inspiration for brand identity and positioning.


Product and service innovations
Help design and optimise connected health devices and service innovations.


Customer engagement
Identify drivers and barriers to customer engagement.

Profile customers and develop personas.


Communications optimisation
Refine messages and concepts with the power to change behaviours.


We’ve worked across most therapy areas including:

  • Oncology

  • Immunology

  • HIV/Infectious Disease

  • Respiratory

  • Cardiovascular

  • Renal & Metabolic

  • Diabetes

  • Ophthalmology

  • Pain

  • Vaccines

  • Biosimilars

  • Neuroscience

  • Rare Disease