An experience led company

Anthony Hatswell, PhD is a statistician & health economist with experience in both consultancy and the pharmaceutical industry. As well as holding an honory research position at UCL, he is a former NICE committee member and has over 50 published papers. Anthony specialises in applied statistics, uncontrolled studies, and utility data.

Anthony Hatswell

Ash Bullement, MSc is a health economist and statistician at Delta Hat. He specialises in survival extrapolation & economic modelling with extensive experience in HTA. Previously he was a Senior Health Economist at a HEOR consultancy, with background in Mathematics, Statistics and Operational Research

Ash Bullement

Charlotte Day, MSci is a health economist and statistician at Delta Hat with a background in Applied Medical Sciences. She has experience in health care including work in GP and pharmacy settings as well as in in HTA submissions, economic modelling within Excel and statistical analysis using R

Charlotte Day

Emma Knowles, MSc is a health economist and statistician at Delta Hat with a background in Mathematics and Medical Statistics. Her experience is in statistical analysis of outcome data using R, economic modelling within Excel, and the construction of HTA submission dossiers.

Emma Knowles

Hollie Wheat, BSc is a health economist and statistician at Delta Hat, with a background in mathematics. Her current projects include meta-analysis, and economic modelling. She is currently enrolled part time on the University of Sheffield Health Economics and Decision Modelling (HEDM) masters degree

Hollie Wheat

Jess Mann, MSc is a statistician at Delta Hat, with a background in mathematics and medical statistics. She has experience in analysing registry and genomic data, and performing indirect comparisons, all using R. Past projects include analysis of patient-level data in a variety of diseases

Jess Mann

Rachael Slater, MSc is a health economist at Delta Hat having previous experience in a number of consultancies, with a background in maths, data analysis and economic modelling. She has extensive experience in Excel modelling, as well as leading complex HTA work streams in a range of disease areas

Rachael Slater

Richard Kay, MSc is the business manager at Delta Hat, with a background in the management of large events in the public, private and third sector. He has a background in physiology and marketing, and helps ensure the smooth functioning of our operation

Richard Kay

Simone Critchlow, MSc is a health economic analyst at Delta Hat with approximately 10 years experience in consultancy. She has extensive experience in several forms of economic evaluation for different purposes including early value assessment, large scale global modelling and economic evaluation for HTA

Simone Critchlow

Will Sullivan, PhD is a health economist with experience across consultancy and academia, including research, lecturing and applied roles. Having left a Director post at another consultancy to join Delta Hat in 2021, Will has extensive experience in leading economic modelling for HTA

Will Sullian

Zoe Philips, PhD is a health economist with over 25 years experience as a senior leader in consultancy, academia and in the pharmaceutical industry. Her expertise relates to HTA strategy, critical appraisal, and the communication of modelling. She has published over 50 articles, including both methodological and applied studies

Zoe Philips