About us.

At Catellus, we aim to challenge the conventional data sharing approaches in health and care. The growing pressure on health services worldwide is urgent, with aging populations, rising service demands, and understaffed health and care services. A modern responsive digital ecosystem is required to power health and care.

Why are we different?
We advocate a personal data store approach addressing many of the flaws we've encountered over the last four decades. Speak to us to find out how personal data stores can revolutionise health and care information sharing.

Our team.

We have a small core team of experienced and highly specialised experts. Our diverse skills enables us to analyse our clients’ problems to develop appropriate solutions. Through our extensive experience we have worked with the very best within each of our specialised disciplines. Consequently, when we require extra help, we know exactly who to call.

Scott Watson

Scott is a senior digital health and care leader with 17 years' experience specialising in solutions architecture and interoperability. He is passionate about designing patient-centric solutions and to help address health and care challenges.  Scott has extensive strategic and leadership experience across health economies and providers. 


Genomics, Acute Care, Oncology Care, Primary Care.


Digital Health and Care Consultant, Chief Information Officer, Software Development Manager, Software Developer, Business Analyst, Sales/Technical Sales Support, Product Innovation and Development.


NHS England, NHS X, NHS Digital, NHS Improvement, ICS Leaders, Health suppliers, Acute specialists.

Nadeem Ahmed

30 + years UK, US, Mid-East, Australia and South Africa health and banking experience.


GP, Primary Care, Secondary Acute Care, Mental Health, Care, Cancer Care, Social Services, Local Authority and 3rd Sector.


Digital Enterprise / Business Architect, Solutions Manger, Programme Manager, Head of IT Services, Management Consultant, Health Systems Software Developer.


NHS England, ICS Leaders, Health System suppliers, Acute & Cancer Care specialists, Primary Care Networks, Voluntary Sector Bodies – GMVCO, North West Ambulance Services (NWAS), PRSB, Local Authority.

Collaboration roles

Patient & Panel Participation Groups, Benefits Realisation Lead, Supporting Accounts Sales & Business Development.

Craig Brannan

Craig is a Solution Architect with over 30 years of working in healthcare. This experience, has been accrued across a range of local, regional and national programs for both public and private health care in the UK, Europe, US, Canada, the Middle East and South Africa.

He is a firm believer in  standards for data interoperability.


Interoperability across healthcare economies, Healthcare International Interoperability, EPR, Portal, Medical Imaging, Pathology, EMPI, Standards, Innovation and Agile Software Design & Delivery.


Lead Solution Architect for large scale system integrators and healthcare software houses.

Solution Design & Delivery, Integration and Problem Resolution.


Extensive national and international suppliers and various NHS bodies in Great Britain & Northern Ireland.

Amanda Lamb

35 years office administration experience.


Genetics, Laboratory Quality Management, Security, Insurance, and Car Hire.


Office Manager, Sales, Service Desk Manager, Purchasing, Credit Collection, and Accounts Assistant

So what do we know?




Health Visiting

Rare Disease

Anticipatory Care

Mental Health (Adults & Children)

Urgent Care

Ambulatory Care

Secondary Care Services



Genetics & Genomics

Community Services

General Practice

Primary Care - Dentistry

Primary Care - Pharmacy

Primary Care - Ophthalmology

Voluntary, Community and Social


Local Authority

Social Services



PACS & Medical Imaging


Person-Centric Architecture

Personal Data Stores

Enterprise Architecture

Regional Architecture

Digital Transformation

Digital Strategies

Population Health Management

Population Health Learning

Health Systems

Artificial Intelligence & Machine


Get in touch to do data differently.