William Diffey
AeroLeads people directory · profile

William Diffey Email & Phone Number

Experienced Chief Risk Officer, Chief Actuary and DPO at Board and ARCC for global Non-Life & Life Insurers - SMF 20 and SMF 4 at BDO UK LLP
Location: London Area, United Kingdom, United Kingdom 17 work roles 2 schools
LinkedIn matched
✓ Verified May 2026 3 data sources Profile completeness 86%

Contact Signals

LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Experienced Chief Risk Officer, Chief Actuary and DPO at Board and ARCC for global Non-Life & Life Insurers - SMF 20 and SMF 4
Location
London Area, United Kingdom, United Kingdom
Company size

Who is William Diffey? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

William Diffey is listed as Experienced Chief Risk Officer, Chief Actuary and DPO at Board and ARCC for global Non-Life & Life Insurers - SMF 20 and SMF 4 at BDO UK LLP, a company with 4888 employees, based in London Area, United Kingdom, United Kingdom. AeroLeads shows a matched LinkedIn profile for William Diffey.

William Diffey previously worked as Actuarial Director at Bdo Uk Llp and Member of Chief Actuary Practising Certificates Committee at Institute And Faculty Of Actuaries. William Diffey holds Ma; Mmath, Mathematics, 1 from University Of Cambridge.

Company email context

Email format at BDO UK LLP

This section adds company-level context without repeating William Diffey's masked contact details.

BDO UK LLP

Review company-level records connected to William Diffey before choosing the right outreach path.

Profile bio

About William Diffey

William Diffey is a Experienced Chief Risk Officer, Chief Actuary and DPO at Board and ARCC for global Non-Life & Life Insurers - SMF 20 and SMF 4 at BDO UK LLP.

Current workplace

William Diffey's current company

Company context helps verify the profile and gives searchers a useful next step.

BDO UK LLP
Bdo Uk Llp
Experienced Chief Risk Officer, Chief Actuary and DPO at Board and ARCC for global Non-Life & Life Insurers - SMF 20 and SMF 4
london, greater london, united kingdom
Website
Employees
4888
AeroLeads page
17 roles

William Diffey work experience

A career timeline built from the work history available for this profile.

Actuarial Director

Current

London Area, United Kingdom

Nov 2024 - Present

Chairman Towards Optimal Reserving Process Working Party

Current

London Area, United Kingdom

I chair one of IFoA’s longest-running GI working parties, which seeks to understand and disseminate best practice reserving processes, provide ideas around how to address challenges and issues and ensure a sound comprehension of emerging trends in reserving process requirements.

Nov 2016 - Present

Director

Current
Inspirium Actuarial Rtm

London, United Kingdom

Sep 2015 - Present

Interim Head Of Risk Challenge

London

Leading Risk challenge team and Internal model validation, stress/scenario testing and deep dives for EO business working with Exec

Jan 2024 - Oct 2024

Interim Senior (Consultant) Manager Risk

Interim role leading asset/capital team for financial risk, stress/scenario testing, ORSA, internal model validation and managing asset/capital risk team for central fund / syndicate review.

Jul 2023 - Dec 2023

Regional Director (Emea), Chief Actuarial Officer (Europe)

London, England, United Kingdom

I directed Assurant’s Actuarial function for the UK, EU, APAC and ANZ, as an SIMR 20 approved person, and a mandatory attendee of the Audit, Risk and Compliance committee in UK and Holland.Building a high-performance Actuarial team from the integration of Assurant and The Warranty Group, I directed delivery of all actuarial output for multiple entities.In.

Jun 2020 - May 2023

Chief Actuarial Officer - Europe

London

Jun 2018 - Jun 2020

Chief Actuarial And Chief Risk Officer

London

Heading Risk, Actuarial and Data Protection Office functions for TWG Europe, I was a member of the Global Leadership Team for Actuarial / Underwriting, and chaired the Management Risk Audit and Compliance Committee and Reserve Committee, holding SIMR 4 and SIMR 20 approved person status.I led the redesign of the risk management framework, including the.

Jul 2016 - May 2018

Chief Actuary (Interim)

London, England, United Kingdom

Interim Chief Actuary role for turn-around business TWG Europe

Jan 2016 - Jun 2016

Internal Model Expert Validation Lead (Interim)

London, United Kingdom

Interim Role as Model Validation Lead for Hiscox Lloyds Internal Model for Solvency 2 for key risk dependency across CRO and Capital Functions. I supported independent model validation risk across commercial and personal lines.

Sep 2015 - Dec 2015

Director Of Gi Business Practice

London, United Kingdom

Appointed to the General Insurance Business Practice to build out a pre-sales and consulting capability for the global launch of GI Prophet, I led go-to-market strategy and built a diverse team of actuarial talent for the launch.Additionally, I established a Board Risk consulting practice for Europe, APAC and LatAm, creating CRO thought leadership pieces.

Feb 2014 - Aug 2015

Vp, Finance Actuary Lpi

London, United Kingdom

I led Business Planning and Actuarial, building a high-performance team in Reserving, Financial Reporting, Risk Control, Capital Modelling, Foresting and ESG. As Actuarial Function Holder for the LPI business, I attended Board and ARCC meetings, and was chair of the Reserving Committee and Capital Committee.Major initiatives included development of an.

Dec 2011 - Oct 2013

Finance Actuary

London, United Kingdom

Senior Actuarial role across GI and Life as Deputy Chief Actuary. Over this period, William built a Finance Actuarial Function from 4 heads to 18 through recruitment, internal promotions, training and team development to cover the following areas: Solvency 2, Capital Modelling, Forecasting, Reserving (US and UK/European covering Premium/Claim Reserving).

Jan 2008 - Dec 2011

Consultant

Consultant specialising in ICA; Solvency II and ERM at former Tillinghast business.

Nov 1997 - Jan 2008

Actuarial Pricing Analyst

Pricing Analyst working in Strategic Pricing function

Aug 1996 - Nov 1997
Team & coworkers

Colleagues at BDO UK LLP

Other employees you can reach at bdo.co.uk. View company contacts for 4888 employees →

2 education records

William Diffey education

Education record

Haywards Heath 6Th Form College
FAQ

Frequently asked questions about William Diffey

Quick answers generated from the profile data available on this page.

What company does William Diffey work for?

William Diffey works for BDO UK LLP.

What is William Diffey's role at BDO UK LLP?

William Diffey is listed as Experienced Chief Risk Officer, Chief Actuary and DPO at Board and ARCC for global Non-Life & Life Insurers - SMF 20 and SMF 4 at BDO UK LLP.

Where is William Diffey based?

William Diffey is based in London Area, United Kingdom, United Kingdom while working with BDO UK LLP.

What companies has William Diffey worked for?

William Diffey has worked for Bdo Uk Llp, Institute And Faculty Of Actuaries, Inspirium Actuarial Rtm, Qbe Europe, and Lloyd'S.

Who are William Diffey's colleagues at BDO UK LLP?

William Diffey's colleagues at BDO UK LLP include Ian Bingham, Ang Peng, Samantha Sibanda Ca(Sa), Emma Smith, and Cindy Ezigbo.

How can I contact William Diffey?

You can use AeroLeads to view verified contact signals for William Diffey at BDO UK LLP, including work email, phone, and LinkedIn data when available.

What schools did William Diffey attend?

William Diffey holds Ma; Mmath, Mathematics, 1 from University Of Cambridge.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.

People with similar names

Check these profiles if this is not the William Diffey you were looking for.

View similar profiles