Calculus Capital Ltd.

Susan McDonald is Chairman and Co-Founder of Calculus Capital, focusing on investing in smaller companies and the UK's Enterprise Investment Scheme (EIS). In 1999/2000 she structured and launched the UK's first HMRC-approved EIS fund alongside John Glencross, and she has directed investment into over 80 companies across a range of sectors. Before Calculus, she was Director and Head of Asian Equity Sales at Banco Santander and previously worked at Jardine Fleming, Robert Fleming and Peregrine Securities; she holds an MBA from the University of Arizona and a BSc from the University of Florida.

Julie Ngo is Chief Operating Officer at Calculus Capital. She previously spent seven years as Head of Compliance and Finance at hedge fund manager Neuron Advisers, where she oversaw financial and regulatory activities including fund launches, restructuring, and the AIFMD transition. Earlier roles included Financial Controller at International Standard Asset Management, Compliance Manager and Financial Controller at Acadian Asset Management (UK) Ltd, and audit work at Ernst & Young and PwC. She is a Chartered Certified accountant and CFA charterholder, with a Bachelor of Economics from Hanoi Finance Academy and an MBA from Oxford University.

Mehta invests in early-stage UK companies at the pre-Series A to Series B stages, with a focus on B2B software, pharmaceuticals, healthcare, and media. He serves as a board observer at Booked it and can be reached at Smit@Calculuscapital.com.