We are a specialist general insurance actuarial firm in the City of London. You work directly with the senior people who do the work, and the same team stays with you year after year.
Managing Director
Alex is a former Insurance Partner at Deloitte with extensive experience advising domestic UK and overseas insurers, Lloyd’s and London Market insurers, reinsurers and P&I Clubs. Since founding Marcuson Consulting in 2010, he has advised a range of insurers on reserving, Solvency II implementation, Internal Model validation, Part VII Transfers and M&A’s.
Senior Actuary
Marcus joined Marcuson Consulting in early 2013. He has assisted firms in reviewing firms’ reserves and capital adequacy, as well as assisting Lloyd’s clients with LCR and validation. Marcus is a member of the flood working party and the inflation working party. He also leads the firm’s analysis of inflation. He has a PhD in Financial Mathematics from University College London and a First Class degree in Mathematics from Oxford University.
Senior Actuary
Miriam is a senior actuary with close to 20 years of actuarial consulting experience. Since joining Marcuson Consulting in 2013, she has delivered a variety of capital and reserving projects in General Insurance, including Internal Model Validations, deep dive reserve reviews, M&A transaction support and audit support. She has significant experience in Part VII transfer projects and expert witness projects, and was approved by the PRA to act as independent expert for a cross-border Part VII transfer which completed in 2022.
Senior Actuary
Steven has over 10 years post-qualification experience, working for Markel International and LCP on a range of reserving and capital modeling projects, before joining Marcuson Consulting in 2016. Steven has a First Class degree and a DPhil in Mathematics from Oxford University.
Senior Actuary
James Widdows is a Fellow of the Institute and Faculty of Actuaries with over 30 years’ experience in general insurance, specialising in reserving and the London Market. He spent 15 years at Chaucer, the majority of that time as Head of Reserving, leading the reserving function across multiple Lloyd’s syndicates and international operations. He has held a Lloyd’s Syndicates Practising Certificate for over 10 years. James combines extensive technical expertise and actuarial leadership with a pragmatic, commercially focused approach.
Senior Actuary
Esmee was a Director at PwC until 2014 and has over 20 years post qualification experience. After leaving PwC she was heavily involved with setting up Flood Re where she was their interim Chief Actuary. She has wide ranging experience of both the domestic and commercial markets and has held signing certificates for both Ireland and Lloyd’s. Her experience has included reserving, Internal Model Validation and major M&As both domestic and international. Esmee has a passion for developing win/win outcomes for complex client groups bringing often divergent stakeholder values together.
Actuary
After graduating from the University of St Andrews with a First Class Masters in Mathematics, José joined Marcuson Consulting in July 2020. He has provided support in reserving for Part VII transfers and has been seconded to multiple Lloyd’s managing agents. José is experienced in SII Standard Formula calculations and has participated in internal research and development projects. He successfully completed his actuarial exams in December 2025.
Senior Actuary – Affiliate
Joseph has over 20 years advising general insurers. Roles have included acting as Chief Actuary at Tokio Marine Global and consulting for KPMG. Since becoming an Affiliate with Marcuson Consulting in 2013, Joseph has been responsible for overseeing the development of the actuarial function and internal model for a Lloyd’s managing agent.
Senior Actuarial Analyst
Jack is a student actuary who joined Marcuson Consulting Ltd in September 2021. He graduated from Durham University with a BSc Hons in Physics. Since starting at Marcuson Consulting Ltd, he has provided support in reserving for Part VII transfers, expert witness assignments and audits.
Senior Actuarial Analyst
Chris joined Marcuson Consulting in September 2022. Since then he has provided support with reserving and developing machine learning models in R and Python. Chris has a First Class Masters of Mathematics from the University of St Andrews and is currently studying towards an actuarial qualification.
Actuarial Analyst
Natasha joined Marcuson Consulting as a student actuary in 2025, following a successful internship with the firm during the summer of 2024. She graduated from the University of St Andrews with a First Class Masters degree in Astrophysics, where her research focused on using Python and large-scale simulations to explore the impact of cosmological structures on the evolution of galaxies. Natasha is currently studying towards an actuarial qualification.
Head of Operations & Business Development
Joining Marcuson Consulting in 2020, Melanie is responsible for business operations as well as driving marketing and business development strategy. She is a graduate of engineering and industrial design from Massey University in New Zealand and has a diverse background of experience in industries ranging from international rail, managing infrastructure projects for Eurostar UK, to corporate and retail banking, delivering customer strategy initiatives for NatWest and the Royal Bank of Scotland.