Executive Committee

Lasitha Perera

Chief Executive Officer

Lasitha Perera has been Chief Executive Officer at GuarantCo since 2017 and has been with the company from 2009 as Chief Investment Officer and Executive Director responsible for GuarantCo’s investment activities globally.

Prior to joining GuarantCo, Lasitha was an Investment Director of Total Capital, a private equity fund, where he was responsible for new investments and represented the fund on the Boards of portfolio companies in the UK and the Nordic region. He started his career at Barclays Capital where he worked in a variety of debt capital market roles in London and New York for nearly ten years.

Lasitha holds an LLB (Hons) in Law from the University of Bristol.

Andy Slack

Chief Credit Officer


Andy Slack has been Chief Credit Officer at GuarantCo since October 2017. He is a senior commercial banker and asset financier and is relishing the challenge of supporting developmental transactions in eligible emerging markets.

Andy has extensive credit risk experience that has aided him in setting up two credit functions since leaving Lloyds Banking Group.

Dale Petrie

Finance Director

Dale Petrie has been Finance Director at GuarantCo since 2017 and has been with the company from 2016 as Head of Reporting, Compliance and Control and an Executive Director responsible for all aspects of GuarantCo’s day-to-day financial management.

Prior to joining GuarantCo, Dale was Financial Controller for Harith Partners UK, a fund management company, where he was responsible for finance and treasury and delivering process efficiency and enhancing business controls across the business. He started his career in insurances services where he worked in a variety of finance related roles for nearly nine years.

Dale is a Chartered Management Accountant and holds a Masters in Strategic Accounting from Aberdeen Business School.

Emily Bushby

Chief Operating Officer

Emily Bushby has been Chief Operating Officer at GuarantCo since March 2018. Her previous roles have included leading finance functions at the University College London and the Institute of Cancer Research. She sits on the Board of Trustees for the British Lung Foundation, and also serves as their Chair of Governance Committee and sits on their Audit Committee. She has also worked in mergers and acquisitions for Centrica and worked in investment management within the banking sector.

Emily trained as a chartered accountant at PricewaterhouseCoopers in London and is an alumnus of Exeter University where she gained a BSc in Psychology.

Kirsten Bryans

General Counsel

Kirsten Bryans has been General Counsel at GuarantCo since March 2017. Kirsten’s previous roles have included working as a private practice finance lawyer, advising various governmental aid departments and foundations on development finance structures and as in-house counsel at The British Council (the UK’s cultural relations and educational organisation).

Kirsten trained as a solicitor at Allen & Overy in London and is an alumnus of Cambridge University, where she gained a MA in Chinese Studies, and the School of Oriental and African Studies, where she gained a LLM in Human Rights, Conflicts and Justice.