Ian Larkin

Chief Executive Officer

Nick Wain

Chief Financial Officer

Bryan Davies

Chief Operating Officer

Maria Calle-Barrado

Chief Legal & Risk Officer

Mark Robbins

Global Sales Director

Lee Burrows

Chief People Officer

Martin Smith

Non-Executive Chairman

Guil Hastings

Founder & Non-Executive

Tom Maizels

Non-Executive Director

Tom Kitchen

Non-Executive Director

Ian Larkin

Chief Executive Officer

Ian joined TopSource as CEO in February 2023. Over the past 20 years, he has amassed extensive leadership experience as a CEO and Board member in many well-known organisations. Ian has significant experience in regulated financial services, having been Managing Director of Consumer Banking and Commercial Finance at Lloyds Banking Group. He also worked alongside Sir Richard Branson in leading the global expansion of Virgin Money.


Ian has an MBA from Insead in France, B.Eng. in Biochemical Engineering from University College Dublin and is a qualified Accountant

Nick Wain

Chief Financial Officer

Nick has overall responsibility for financial planning, reporting and analysis, as well as the management of financial and compliance risk.

Based in the UK, Nick has spent the previous 10 years working as CFO/FD for organisations focused on the HCM sector, primarily within the NGA Human Resources business and most recently as CFO of Zellis. Nick has held board-level positions in a variety of industry sectors over the last 20+ years.

Nick is ACA qualified and started his career with PwC and has subsequently spent over 20 years working in commercial finance leadership roles, predominately in the technology sector.

Bryan Davies

Chief Operating Officer

Bryan leads the operational delivery and Client Management teams for TopSource Worldwide, providing payroll, accounting and EOR services.

Bryan has held senior leadership roles in outsourcing businesses and has extensive experience across the BPO, HR and Payroll sectors.

Maria Calle-Barrado

Chief Legal & Risk Officer

Maria has overall responsibility for the Legal & Compliance team, which also includes the Risk and Information Security functions.

Maria is a multi-lingual and multi-jurisdictional dually qualified lawyer (UK Solicitor & EU qualified- Spanish Abogado), with over 21 years of leading Legal in-house functions. Maria has held board-level positions in various industries and sectors, such as Private Equity, FMCG, Fashion & Sportswear, International Affairs/Management Consultancy and Financial Services.

Her work has covered a wide range of legal areas, including Corporate law, Compliance, Commercial law, IP law, Privacy law and Employment law.

Mark Robbins

Global Sales Director

Mark is the Sales Director at Topsource Worldwide. He has been a pioneering figure in the global expansion space since 2013. He is the first salesperson to sell EOR services in Europe, a feat he accomplished in 2013. 

His leadership and strategic vision have been instrumental in shaping the EOR landscape across the continent. His contributions to the field continue to set standards and pave the way for future advancements in global expansion and EOR services.

Lee Burrows

Chief People Officer

Lee Burrows Lee has overall responsibility for the people function in TopSource including talent acquisition, reward, employee engagement and organisational development. 

He has 25 years of extensive HR experience in various sectors, from financial services, technology and entertainment and gaming to healthcare and BPO services.  Lee has held leadership roles in large corporations and start-ups building people functions while working in Europe, Australia and Asia.   

Lee has a B.A. Hons from Durham University and is a CIPD postgraduate. 

Martin Smith

Non-Executive Chairman

Martin joined the Board as Chairman in December 2020. He has a successful track record of working with companies in the business support services, legal, financial, human capital, software and compliance sectors.

Martin is also Chairman of Cosegic, Independent Governance Group and AuditComply and also a Patron of the military charity Team Endeavour. His previous roles include Chairman of Property Information Exchange, CEO of Alcumus, Managing Director of Croner and Commercial Director of BSI British Standards.

Guil Hastings

Founder & Non-Executive

Guil is the founder and Non-Executive of TopSource and has led the business for 20 years as CEO. He has extensive business leadership and commercial experience in domestic and international payroll.

Guil has played an instrumental role in the recent mergers and acquisitions and has led the business growth to reach over 400% in the past two years.

As a Non-Executive Director, Guil supports the business as Board Member and helps build partnerships and M&A opportunities for the business.

Tom Maizels

Non-Executive Director

Tom led the investment of Topsource and currently serves as a board member. He is also a Partner at Horizon Capital, where he leads new platform investments and supports the growth of new portfolio companies.

Tom Kitchen

Non-Executive Director

Tom currently serves as a board member at Topsource Worldwide. He is also an Investment Executive at Horizon Capital, responsible for sourcing and executing new platform investments.

Our team is leading the way in global expansion

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