Meet the team

Graham Ritchie was appointed Chief Executive Officer on 1 October 2021. Since 2016, Graham was a member of the Executive Committee of Intertek Group plc, responsible for its operations in Europe, including Russia, and Central Asia. Prior to that role, Graham was Intertek’s Group Financial Controller. Previously, Graham held senior financial positions at BT Group plc and other technology services organisations, having started his career with PwC. Graham is a qualified Chartered Accountant and holds a BA in Economics.

Judith joined Ricardo plc and the Board on the 1 July 2023.

Judith is a former KPMG accountant and has more than 20 years’ experience working in senior financial and operational roles. She was previously the Group Finance Director for RPS Group plc ("RPS"), and, prior to that, she held various senior roles within RPS, including Chief Executive of RPS's UK & Ireland consulting business and Group Strategy Director.
 
Before RPS, Judith worked at Ricardo as a Finance Director within its Automotive and Industrial business unit, having originally joined AEA Technology, which Ricardo acquired in 2012.

Mike joined Ricardo in 2019 and was appointed Chief Strategy and Digital Officer in April 2022. Mike brings over 25 years’ consulting, product, corporate strategy and transformation experience to the Group Executive Committee.

Chet joined Ricardo in 2011 and was appointed President, Ricardo Defense Inc.* in 2016. Chet is a highly experienced management professional with over 25 years of experience in the defence and automotive sectors at both private and publicly listed companies.

_{*Ricardo Defense Inc. is the business entity within Ricardo which delivers solutions for the US Department of Defense and therefore operates as a separate entity governed by a Special Security Agreement (SSA).}

Richard Guest was appointed as Managing Director in 2023 and is a Chartered Mechanical Engineer. Richard has over 35 years’ experience in the rotating machines design and manufacturing sector across the automotive, aerospace and power-generation markets. He has managed companies both in the UK and also internationally for over 24 years

Jason Oms O’Donnell was appointed as Managing Director in 2023. Jason first joined Ricardo as an automotive graduate and has spent his 25-year career with the company. Having started his career in engineering and testing, he ultimately became a Chief Engineer delivering some of the company’s largest, most complex programmes. In the past decade he has held senior management positions of Vice President Engineering for China, for which he relocated to Shanghai for five years and, most recently, Senior Vice President Engineering for global automotive and industrial.

Natasha was appointed as Group Director of Marketing and Communications in January 2021 and has global responsibility for strategic marketing and brand as well as internal, external and investor communications across Ricardo. Prior to joining Ricardo, Natasha spent over 15 years leading marketing and communications for large corporates. Natasha’s depth of experience ensures that Ricardo can accelerate its position as a leader in environmental and energy transition services and build sustainable value for all its stakeholders. 

Harpreet Sagoo is Group General Counsel and Company Secretary for Ricardo plc. She began her career with Marconi Telecommunications, where she qualified as a lawyer in 2002. She has held several senior legal positions internationally primarily focused on the technology sector, moving from listed companies to the startup world. Harpreet is a results driven professional with an excellent track record of building agile, responsive legal teams which can provide a tailored service to the business across various regions within a fast paced environment. Her extensive experience with creating legal compliance frameworks to address regulatory changes on a global basis, working on M&A, divestments, IP strategy, litigation, ethics and reducing the sales contract cycle has not reduced her appetite to lead and close complex legal high profile contracts. 

Rachel White joined Ricardo as Global President, Clean Energy and Environmental Solutions in December 2022. Rachel was most recently CEO of Arcadis Gen, Arcadis' global digital business, where she was instrumental in the inception of the company, which has grown from a start up to being a significant digital business. Rachel has a track record in delivering results and growing businesses internationally and is well experienced in leading large businesses ranging in size from £50m to £500m. 

Rachel is a a qualified planner and civil engineer and is currently a non-executive chair of Thomas Telford Ltd, the Institution of Civil Engineers trading subsidiary and also a non-executive director of Engineering UK. 

Clive joined Ricardo in 1985 and was appointed as Group Director, Sustainability, Quality and Risk in April 2022. Clive has held numerous roles within the business with a wealth of experience in engineering, product delivery, systems implementation and programme management.

Diane joined Ricardo plc as Chief People Officer in July 2024. Diane’s extensive international experience in human resources spans a variety of geographies and sectors, including real estate, technology, and professional services - the latter at Accenture and, most recently, RPS Group plc. 

Passionate about engagement, culture, and talent management, she has held pivotal leadership roles in driving HR strategy and transformation.  She has a proven track record of enhancing employee engagement, implementing effective HR strategies, and contributing to significant business growth.