The Financial Ombudsman Service has announced the appointment of Marc Harris as Chief Operating Officer.

Marc brings a wealth of experience to the role, having spent the last 20 years working in regulated financial services companies across change management, transformation and digital journeys, and leading operations and transformation within regulated environments. 

Marc joined at the beginning of January and his key responsibilities are transformation and continuous improvement, planning, forecasting and performance, IT and data and analytics teams. Marc takes over from Karl Khan who will leave the Financial Ombudsman at the end of this month. 

Chief Executive and Chief Ombudsman Abby Thomas said:  

I’m delighted to welcome Marc Harris to the Financial Ombudsman Service as our new Chief Operating Officer. Marc is a great addition to our executive team and will play a key role in helping us deliver on the big ambitions we have for our service. 

I’d like to thank Karl Khan for his leadership and support and wish him the best for the future.”  

Marc Harris said: 

I am excited and honoured to be joining the Financial Ombudsman Service, to have the opportunity to lead vital enabling functions and drive the ambitious transformation agenda, to support customers to get fair, timely and effective resolutions to complaints by delivering positive outcomes for the service.” 

Notes to editors  

Marc Harris – short biographical note 

Marc has spent the last 20 years of his career working in regulated financial services companies, starting out in change management for Fidelity International, and working for several asset managers and banks including Octopus Investments and Close Brothers, as well as helping to grow a FinTech called ThinCats. Marc has most recently been working with banks undertaking transformation journeys focused on customer-centric digital enablement journeys, most recently as COO of Alpha Bank London. Marc is experienced in leading operations and enabling change and transformation within regulated environments. 

Latest news

Financial Ombudsman Service driving reform and delivering improvements as it sets out its plans for next year

27 November 2025

The continuous delivery of changes and improvements to our service will be a key focus for 2026/27 as we launched a consultation on our Plans and Budget.

Press release Strategic plans and budget Consultations and responses

Read more 

Financial Ombudsman Service continues to see a fall in cases

29 October 2025

Our Q2 2025/26 complaints data shows that new cases coming to us have dropped by more than a third, as professional representatives bring fewer cases.

Press release Complaints data Data and Insight Business complaints data Product complaints data

Read more 

Keep your pension safe from scammers, warns the Financial Ombudsman Service

18 September 2025

Over the past five years hundreds of people have fallen victim to potential pension scams, the Financial Ombudsman Service revealed today.

Press release Pensions

Read more