Day One is a global healthcare market research and strategy consultancy

We help the global healthcare industry make better informed decisions. By combining technology and human intelligence we move quickly and deliver a richer understanding of your customers, communications and brands.

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 take your challenges and create solutions that work for you, your customers and your business.

From launch to success
The first six months of any new product launch is critical. Increased competition and the shift to a digital-first environment have increased complexity. Your ability to adapt quickly will ensure that your brand achieves its full potential.

How we help
You need a market research partner that understands your business and has the experience to help you make the right decisions.


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 and strengthen how market research is conducted.

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 and techniques with established research approaches

Tech Human


Technology helps us to deliver market research 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