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Phil Pemberton


Phil Pemberton co-founded Pemberton Stewart with partner Aaron Stewart in 2007. Phil services a core group of clients, including tier-one investment banks, multi-billion AUM hedge funds and family offices. He has a track record of completing strategic senior mandates at C-suite level, global and regional head level. Phil also drives the membership and connectivity of Pemberton Networks.

Byron Rienstra


Byron Rienstra joined Pemberton Stewart in 2017 as CEO, and moved to the role of Chairman in 2019.  Prior to joining Pemberton Stewart, Byron was HR Director for Functions and Structural Reform at Barclays. Before that, he was Group Head of Talent, Learning and Culture at Standard Chartered Bank.

Claire Sutton


Claire is ACCA qualified and works as Head of Finance for Pemberton Stewart.

Claire has experience in a variety of finance roles. Prior to working with Pemberton Stewart, Claire’s roles included external audit, Internal Auditor for a FTSE 100 company and Management Accountant for a large Insurance company.

Global Markets team

Andrew Westmacott


Andrew joined Pemberton Stewart in Hong Kong in 2009 to focus on building up the Global Markets business in into a market-leading practice Asia Pacific. He took over as CEO in 2019. Andrew began his career in Executive Search in 2005 in London having graduated with a BA in History from the University of Manchester.

Will Brocks


Will is a Partner and part of the Global Markets business focusing on Fixed Income and Currencies across APAC and Europe. Will joined Pemberton Stewart in Singapore in 2014. Will began his career in Search in 2006 working in London and Singapore.

Fraser Jarrett

Fraser works in the Global Markets team focusing on Fixed Income Trading, Sales & Structuring.

Before joining Pemberton Stewart, Fraser studied a degree in Oceanography at the University of Southampton.

Cameron Hamilton-Patel

Cameron works in the Global Markets Team where he focuses on Asia EM Macro across Sales, Trading and Structuring.

Before joining Pemberton Stewart, Cameron completed a Chartered Manager Degree Apprenticeship at the University of Wolverhampton with a first-class degree in Business Management.

Emily Chapman

Emily works in the Global Markets team and has a focus on Credit across Sales, Trading and Structuring.

She joined Pemberton Stewart in 2021. Previously she worked coordinating international UXO disposal projects for the UN. Emily graduated from Royal Holloway University with a degree in History.

Chang Liu

Chang works in the Global Markets Team, focusing on Fixed Income Sales, Trading & Structuring in Greater China.

Prior to joining Pemberton Stewart, Chang worked for Huawei UK and a London Stock Exchange listed fintech company in London. BA in English Literature, MA in Applied Linguistics.

Global Banking & Energy Transition team

Tom Gregory-Smith


Tom has led Pemberton Stewart’s Global Banking & Energy Transition Team since 2009, focusing on senior level executive search appointments across Asia-Pacific, EMEA and North America across both the Financial Services and Energy Transition sectors.

Tom has a BA in History from the University of Leeds, and divides his time across London and APAC.

Gyte Petrauskaite

Gyte works in the Global Banking & Energy Transition team. Her main focus is on Investment Banking, Energy Transition & Diversity.

Prior to joining Pemberton Stewart Gyte completed two degrees in MSc Occupational Psychology in University of Worcester, and BA Psychology in University of Worcester.

Global Commodities team

William Brocklehurst


William Brocklehurst runs the Global Commodities practice. He leads and executes senior front office searches for trading houses, financial institutions and industrials across Asia, Europe and the US. William joined Pemberton Stewart in Asia and has been integral in establishing the firm as the commodities search leader for the region, while managing our Singapore office.

Giles Krempels

Giles is an Associate Director in our Global Commodities team specialising in senior hires across Crude Oil & Oil Products, Gas & Power, Carbon & Environmental Products, LNG, Ferrous & Non-Ferrous Metals and Agriculture.

Prior to joining Pemberton Stewart Giles worked for a UK Tax and Wealth Management business in Singapore for over 7 years building a personal client base of GBP50M under his advice and management.

Hong Kong

Pemberton Stewart International Ltd.
E.A. Licence No. 65751

Room 403, Lap Fai Building
No. 6-8 Pottinger Street
Central, Hong Kong


Pemberton Stewart (Singapore) Pte
E.A. Licence No. 16S8441

​9 Raffles Place
Level 6, Republic Plaza 1
Singapore 048619


Pemberton Stewart UK Ltd.


8-10 Hill Street