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Our Team

We're an alliance because our clients aren't just clients - they're part of the team too. Everyone has something to bring to the table to benefit the broader community, and that's how we work.

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stephan repkow

Founder & CEO

Stephan has over thirty years of experience in the banking sector, in the fields of capital markets, asset management and private banking, and has been working in Singapore and Hong Kong since 1999.

Before founding WMA, Stephan was the Asia CEO of UBP Private Banking (SG & HK) until June 2015, and held a number of high-profile positions at Swiss-Asia (CIO and managing partner, SG & HK), Deutsche Asset Management (MD-Regional head of Sales, SG & HK), Citigroup Private Bank (MD, HK & SG) and BNP Paribas (Head of Treasury APAC and Fixed Income, SG).

Stephan, a French-born Singaporean citizen, holds a Master in Economy & Finance from Sciences Po, Paris and a B.A. in Applied Mathematics from the Université de Paris-Dauphine, Paris.

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The WMA investment team is what our families and clients plug into for advice on their portfolios, specific investments, and in dealing with external business partners such as custodians, banks, brokers, fund managers and trustees.

Kenny chong

Head of Investment Services

Kenny has over 25 years of experience in the financial sector in both buy- and sell-side firms.

Prior to joining WMA, Kenny was a Portfolio Manager at Marathon Asset Management, managing their Asian Credit portfolio.

Kenny started his career in 1992 at JP Morgan trading in fixed income, foreign exchange, interest rates and equity derivatives. He moved to Credit Suisse in 2000 to head up Asian Credit Trading, and later set up DBS's Asia High Yield Trading business from 2009 to 2012.

Kenny, a Singaporean citizen, holds Bachelor of Commerce (Hons) and Bachelor of Economics degrees from the University of Adelaide.

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Chief Operating Officer

Colin has been in the banking and finance industry since 2013.

As COO, he drives the private funds solutions business, investment process enhancement, transaction management, while remaining in charge of investment research and having direct investment advisory and relationship management responsibilities for his direct pool of clients.

Colin, a Singaporean citizen, holds a Master of Business Administration and a B.Soc.Sci (Honours) in Political Science from the National University of Singapore.

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Investment Advisor

Marcus graduated in 2021 with First Class Honours from the National University of Singapore.

Before starting his career at WMA, Marcus had a variety of internship experiences with financial institutions. These included stints at Fullerton Fund Management's Equity Research team, ABN AMRO's Risk Management team, and LBBW's Corporate Banking team.

Marcus, a Singaporean citizen, holds a Bachelor of Business Administration (Honours) specializing in Finance from the National University of Singapore.

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Raymond quan

Senior Investment Advisor

Raymond has over 20 years of experience in cross-assets sales in Asia. Prior to joining WMA, Raymond was Head of Financial Institutional Sales at MUFG and ANZ.


Raymond started his banking career with BNP Paribas in 1996, covering Private Banking Relationship Managers & their UHNW clients, Corporates, Sovereign Wealth Funds, Financial Institutions and Proprietary Traders. Later, Raymond joined Barclays Capital to set up a new Private Bank sales business unit.


Raymond is a Singaporean Citizen, and holds a Bachelor in Banking and Finance from Curtin University of Technology in Perth, Australia.


nirmala gopalakrishnan

Chief Administration Officer

Mala has over 30 years of working experience in the Private and Corporate Banking industry in Singapore, responsible for operations, finance, human resources and compliance activities.

Before joining WMA as founding CAO, Mala worked at UBP as assistant to the Asia CEO, heading Human Resources and Office Management functions. Before that, Mala was in charge of Southeast Asia Processing and Operations in BNP Paribas and supervising private banking operations at Bankers Trust. 

Mala, a Singaporean citizen, is a certified Human Resources Manager with the International Academy of Business and Financial Management, and read Compliance and Banking Risks at IBF and ABS.

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WMA's administrative team keeps the show going day and night, helping to manage our dealings with a wide array of service providers to ensure that the investment team has what it needs to make the right decisions, and that clients are kept fully in the loop in all that we do.



Client Services & Administration

Iriana joined WMA as Client Services & Administration, after more than 20 years of experience in the banking industry.

Iriana, a Singaporean national, started her career in finance with POSB then OCBC prior joining Bank of Tokyo Mitsubishi where she held various roles in Accounting Department.

Iriana then joined Clariden Leu in Marketing & Communication prior to joining UBP in 2012.



Managing Partner

Leslie has been managing client money since 1995, working initially in active fund management firms before moving across to the private banking world in 2006.

Prior to joining WMA as Managing Partner, Leslie was the Asian head of Equity Advisory & Execution at Royal Bank of Canada Wealth Management.

Leslie, a Singaporean citizen, started his career at DBS Asset Management focused on Singapore and Malaysian equity investments, and later worked at HSBC Asset Management and Lloyd George Management. In 2006, he joined Citi Private Bank and HSBC Private Bank. Leslie studied at University College London.


WMA's partners are more than just clients. They are at the heart of all we do, and are more than just passive members of the WMA community. They are active participants in our Alliance, bringing their and their families' decades of experience and networks in their respective industries to benefit the entire group.

Mok weng sun

Managing Partner

Weng joined the financial sector in 1997 and has 19 years of experience in private equity investing across Asia-Pacific.

Prior to joining WMA, Weng was Partner and Head of South East Asia at Affinity Equity Partners. Prior to the establishment of Affinity as an independent fund manager in 2004, he was a Partner at UBS Capital, the proprietary private equity arm of UBS AG, and a member of the team that spun the business out of UBS to form Affinity. From 1991 to 1997, Weng worked in the industrial sector for a family-owned engineering group.

Weng, a Malaysian citizen, holds a MBA in Finance and a BSc in Industrial & Management Engineering from the Rensselaer Polytechnic Institute in New York, USA.

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Roby lasmana

Managing Partner

Roby has over 20 years of experience in General Management of financial and industrial companies in Indonesia.

Prior to joining WMA, Roby worked at his family-owned group of companies. Roby worked in the credit and banking arm of the Family business, advising the firm on strategic development and supervising its senior management and finance functions. Since 2000, Roby was CFO and Director of the family's textiles business.

Roby, an Indonesian citizen, holds a Master in Business Administration and Bachelor’s degree in Management Science from Golden Gate University, San Francisco, USA.


Managing Partner

François has over 25 years of experience in General Management of luxury retail and F&B companies in Belgium and Vietnam.

From 1994 to 2011, François was the CEO of the Delvaux Group (est. 1829), a Belgian luxury goods manufacturer. François has also started restaurants and catering companies in Brussels, and more recently a craft brewery and brasserie in Ho Chi Minh City when he relocated to Vietnam in 2011 to open a leather goods factory for high-end European and US brands.

François, a Belgian citizen, is an active YPO member in Vietnam (and founder of the Belgium chapter in 1990), and holds a Bachelor in Applied Economic Sciences from the University of Louvain, Belgium.

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Richard Wee

Advisory Board Member

Richard, a Singaporean citizen, holds a degree in Economics as well as a Law degree. He was called to the English Bar in 1991 and to the Singapore Bar in 1993.


After practicing law in Singapore for several years, Richard became an entrepreneur and started businesses in Singapore, Malaysia and Thailand.


His interests are varied as reflected in the different sectors his companies operate in. These businesses include Retail, Medical, Leisure, Property Development and Finance. He is currently still active and sits on the Boards of several companies in the region.



The Advisory Board comprises individuals who have graciously volunteered their lifetime of corporate experience to make WMA better for all its clients.

hugues delcourt

Advisory Board Member

Hugues is currently a senior advisor and operating partner for a limited number of families and a large international private equity firm. He was chairman of the Management Board and Group CEO of Banque Internationale à Luxembourg (BIL) from 2014 to 2019. Hugues, French by origin and now Luxembourgish, garnered his 30-year banking experience (of which 17 have been in Asia) in senior leadership positions with ABN AMRO, UBS and Crédit Agricole Indosuez. Before taking over BIL's leadership, he was CEO of ABN AMRO Private Banking in Asia & Middle East as well as Country Manager for Singapore.

Hugues, a Luxembourgish citizen, holds an MBA with distinction from INSEAD and is also a graduate of HEC Paris (Ecole des Hautes Etudes Commerciales).

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Quah ban huat

Advisory Board Member

Quah has over 35 years in banking, finance and advisory. He is currently a director on a number of listed and private companies in addition to advising clients on business strategy.

Prior to this, Quah waas a Principal Advisor at KPMG Corporate Finance and held various key finance positions at Deutsche Bank, the IMC Group, City Gas Pte. Ltd and Rickmers Maritime. He previously served on the Board of Grindrod Shipping Holdings Ltd., AP Oil International Limited, Croesus Retail Asset Management Pte. Ltd., Deutsche Boerse Asia Holdings Pte Ltd, Eurex Clearing Asia Pte. Ltd. and Eurex Exchange Asia Pte. Ltd. He was the founding president of PRYME, a non-profit organisation which supports less privileged students through scholarship and mentorship.

Quah, a Malaysian citizen and Singapore PR, is a member of the Institute of Chartered Accountants in England and Wales and the Association of Chartered Certified Accountants in United Kingdom

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