Board of Directors

T. U. Michael Sieg

In 2003, Michael established ThomasLloyd, an independent alternative asset management group that focuses predominantly on private equity investing.

At early stages of the firm’s evolution, Michael identified the growing gap and institutional needs for project financing and investments in sustainable real assets that are essential to combat climate change. In a sector that has been continuously receiving inadequate advice and underinvested, Michael already led the first investment of ThomasLloyd in an investment banking firm that focused on cleantech investments in 2005. Subsequently, the group then focussed on investment advisory, cleantech investments, and providing cleantech solutions globally.

After initial success, Michael directed and led the firm to become a dedicated global impact asset manager investing in high-growth and emerging markets. ThomasLloyd is now one of the world’s leading impact investors and providers of climate financing, having raised over USD 1.3 billion in aggregate capital. Michael has been involved in all phases of Thomas Lloyd’s development and is the Chair of the Investment Committee.

Michael has been involved in and led a number of high-profile trade delegations over the years. As one of the most experienced and largest investors in renewable energy in the Philippines, Michael joined a delegation with the German Foreign Minister as part of his trip to South East Asia in 2013 in order to deepen trade relations between Germany and the Philippines. Since then, Michael has led delegations to China in 2014, to the Philippines in 2016 and 2017 and to India in 2017, 2019 and 2020.

Michael is recognised as an innovator and early expert in the sustainable deployment of capital in real assets in fast-growing economies. He is a regular speaker and contributor to forward thinking on sustainable investment, impact investing, climate change mitigation and diversity.

Michael established the ThomasLloyd Foundation, an organisation committed to alleviating hardship, assisting with the establishment of elementary living conditions, and to further lasting social progress in the communities in which ThomasLloyd operates.

Anthony M. Coveney

Anthony (Tony) joined ThomasLloyd in 2006 and is responsible for the identification, selection, execution and management of the Group’s sustainable infrastructure portfolios and is a member of the Board of Directors.

He was part of the management team which led the Group’s investment in the Philippines that includes the first utility-scale solar plant in 2014 and the first IFC financing transaction. Over the past decade, he has played a key role in the Group’s successful deployment of over USD 1 billion in sustainable infrastructure investments in fast growing and emerging markets.

Tony has more than four decades of investment and financial services experience including senior leadership roles and board positions at Lazard and N.M. Rothschild, Bank of America and Citibank. Prior to joining ThomasLloyd, Tony was the Global Treasurer of Riyad Bank. Tony served as an independent advisor to the Cabinet Office of the Prime Minister of the United Kingdom between 1992 and 1997.

He is a regular speaker on sustainable investment and ESG themes. Tony has led a number of delegations to the Philippines in 2013, 2016, 2017, 2019 and to India in 2019 and 2020 hosting institutional investors, allocators of capital, policy makers and government officials.

Tony holds a Bachelor of Arts degree in Politics and Economics from the University of London and is a Member of the Chartered Securities Institute.

Miriam Plater

Miriam joined ThomasLloyd in 2018 and is the head of the human resources department. She is responsible fortalent acquisition and development, reward and recognition, learning and development and employee engagement. Miriam is also responsible for the Group’s Diversity and Inclusion strategy which aims at creating a fair and inclusive working environment, where a culture of trust, challenge and candour is nurtured. Miriam is a member of the Board of Directors.

Miriam has more than 25 years of international human resources management and business experience where she has built and fostered inclusive cultures, enabling high performing teams to deliver. Her proven track record includes all aspects of global human resources management, organisational and change transformation and helping companies evolve from niche operators to large global players.

Prior to joining ThomasLloyd, Miriam was the International Human Resources Director at Goodwin Procter LLP where she was responsible for their talent management strategy and supporting the growth of their international offices. Before this, she Miriam spent 12 years at Bibby Financial Services where she held several senior positions including Global Human Resources Director.

Miriam is a Fellow of the Chartered Institute of Personnel and Development.

Vivienne Maclachlan

Vivienne joined ThomasLloyd in 2019 and is responsible for the group finance department which includes accounting, tax, treasury and corporate strategy. She is a member of the ESG Stewardship committee and a member of the Board of Directors.

Vivienne has considerable expertise in transforming and establishing financial procedures and processes in enhancing public reporting and external communications in order to facilitate communication with investors and analysts, while promoting the highest standards of governance and transparency.

Prior to joining ThomasLloyd, Vivienne was the CFO of Alfa Financial Software Plc, a technology company based in London, with operations in the United States of America, Europe, Australia and New Zealand. Vivienne was instrumental in leading Alfa through its listing on the main market of the London Stock Exchange in June 2017. She also oversaw the transformation of the finance department prior to and post listing.

She has more than 12 years of capital markets experience at PricewaterhouseCoopers, where she assisted and advised management teams and owners of companies on raising capital in UK, US and European markets and on Merger and Acquisition transactions.

Vivienne is also an independent non-executive Director and Chair of the Audit Committee of Tungsten Corporation PLC, an Alternative Investment Market (AIM) listed technology corporation based in London.

Vivienne holds a Bachelor of Law (LL.B Hons) from the University of Aberdeen and is a member of the Institute of Chartered Accountants, Scotland.