Global fintech SumUp has reinforced its European operations with a series of strategic executive appointments based at its Dublin office. Niall Mac an tSionnaigh is now CEO of SumUp , SumUp’s Irish operating company, and Alastair Nolan, who joined as SumUp Group’s CFO Europe, will serve as SumUp’s head of finance.
Claire Gillanders is now head of compliance, after four years in SumUp’s risk organisation. Jessica Cotta was recently appointed as chief risk officer for SumUp.
Long-time SumUpper Gareth Walsh has transitioned to being a non-executive director on the board, alongside Siona Meghen who has joined the SumUp board as an independent non-executive director.
Ireland is strategically significant for SumUp, with the Irish entity operating as a gateway to SumUp’s European markets. The company has enjoyed over a decade of sustained growth and has generated positive EBITDA since December 2022. In recent years SumUp won prestigious awards in Ireland, including ‘Best Global SME Fintech Company’ in 2024 and ‘Best Global Mobile Business Payment Solutions Provider’ in 2022 and 2023.
Mac an tSionnaigh has been with SumUp since 2022, concurrently holding the roles of VP of global operations and COO of SumUp before taking over as CEO. Before SumUp, he was at LinkedIn for eight years, initially based in San Francisco and then leading a 500 person global operations and support team from Dublin. Mac an tSionnaigh has also worked at Deloitte, Bank of Scotland, Accenture, and studied at UCD.
Commenting on his appointment, Mac an tSionnaigh said: “I am honoured to step up as CEO for SumUp Limited and to lead this critical part of the global SumUp organisation in our next phase of growth. SumUp has a strong track record of providing innovative payment solutions to small businesses, and I am looking forward to continuing to build on that success. I am committed to ensuring that SumUp remains focused on its mission of empowering small businesses to thrive and succeed in the digital economy. I am thrilled to be a part of such a talented and dedicated team, and I am confident that together we can achieve great things”
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By GlobalDataNolan joined SumUp in May from Morgan Stanley, where he worked for over a decade. During his time at Morgan Stanley, Nolan was based in London and Boston and worked across equity sales and research, specialising in software and payments. His final position was executive director. Like Mac an tSionnaigh, he studied at UCD.
On his appointment, Nolan said: “SumUp is a high growth company, leading a competitive market. As we expand the services and products offered, it’s critical our financial infrastructure and processes are optimised in order to seize future opportunities. I’ve long been an admirer of SumUp, especially having covered the payments sector for a number of years at Morgan Stanley, so joining now made perfect sense. I’m particularly looking forward to getting to know our merchants better and playing my part in taking the company to the next level.”
