3 February 2026: There was a change in the leaders at Marsh UK. Marsh UK is a part of Marsh McLennan, a company that deals with risk, insurance and consulting. They appointed Lisa Quest as the Chief Executive Officer of Marsh UK. She will start her job on 6 April 2026. This change is a sign that Marsh UK is looking to do things. The company wants to be ready for the challenges and opportunities that are coming up in the market. Marsh UK is the arm of Marsh McLennan, which is one of the biggest professional services firms, in the world.

A Proven Leader at the Helm

Lisa Quest is the Head of UK and Ireland at Oliver Wyman. Oliver Wyman is the management consulting arm of Marsh McLennan. Now Lisa Quest will be in charge of Marsh operations in the United Kingdom. She is taking over from Chris Lay. Chris Lay is the CEO. He is retiring after working with the firm for a long time. Chris Lay had a distinguished career with the firm. Lisa Quest will be leading Marsh operations, in the United Kingdom.

This appointment puts Quest at the front of a really big organisation that is worth £10 billion. This organisation has four parts:

• Marsh does risk and insurance broking
• Mercer does HR and talent consulting
• Guy Carpenter does reinsurance
• Oliver Wyman does management consulting. All of these parts work under the name of Marsh UK. The organisation is huge. Quest is now a big part of it. Quest is now, at the forefront of this £10 billion organisation.

Steering Strategy in a Complex Market

As the CEO Quest has a job to do: she needs to make Marsh UKs commercial strategy better build stronger relationships with clients and come up with new ideas for all the services they offer. Quest will work with the leaders at Marsh to help the company do better in areas like managing risks, for big companies and finding the right insurance solutions. They will also work on using analytics and helping companies figure out their overall strategy and find the best people to hire. Quest and the leaders will do all this to make Marsh a stronger company.

The United Kingdom market is really changing a lot. Companies of all sizes are dealing with problems that come from changes in the world new technology and new rules. Quest said this. I am looking forward to working with our teams and clients to make complicated things into good things, for the United Kingdom market and our clients.

Leadership Built on Experience

Quest has been at Oliver Wyman for twenty years. During this time Quest has played a role in helping Oliver Wyman grow and work with more people in the government public institutions and commercial sectors. Quest is really good at consulting especially when it comes to designing organizations planning workforce strategy and analyzing data. This makes Quest a great fit to work with Marsh and use their business model to make a difference with Marshs business model and Quests expertise in organizational design and data analytics, at Marsh.

The job of being the CEO of Marsh UK is a deal. This company is right in the middle of the way of doing insurance and the new way of giving advice. People who use their services want to see things that are based on facts and numbers. They want to know how to deal with problems and make plans for the future. They also want to know how to manage risks when things are not going well. Marsh UK wants to use all the things it’s good, at to give its clients better and more complete solutions. Under the leadership of Quest Marsh UK is trying to do this. Marsh UK is trying to give its clients things that’re really valuable. Marsh UK has a lot of things it can do. It wants to use them to help its clients.

Beyond Insurance — A Broad Strategic Vision

Quest does more than the usual broking and reinsurance work. They also help Marshs consulting and human capital practices grow. These areas are very important for making money in the future. Quest has worked with governments and big companies before. This experience is good for Marsh UK because they want to be more than a company that sells insurance products. They want to be a trusted partner that helps people deal with risk and make changes to their organizations. Quest is a part of this plan, for Marsh UK.

Tribute to Outgoing Leadership

Chris Lay has served as CEO of Marsh UK since 2018 and has held senior leadership positions across Marsh McLennan’s global network. Under his stewardship, the business navigated a highly competitive era marked by tightening capital markets and shifting risk portfolios. His retirement marks the end of a significant chapter for the firm.