Our people - Greengage

Our People

Sean Kiernan

Founder & Chief Executive Officer

Held various roles in executive management in financial services within Credit Suisse and Zurich Financial Services. COO of the London office of the first bank in the world to offer crypto products to clients – Falcon Private Bank. Prior experience in successfully setting up a regulated UK bank within Credit Suisse.

Daniel Bryk

Chief Technical Officer

Daniel has worked in the IT industry for over 25 years, starting his career straight out of University at GEC (General Electric Company) in the defence industry, he has worked in various roles from developer to CTO. With such a wealth of knowledge he founded his own consulting company working predominantly in the FinTech arena. With his rich experience across multiple technical domains he always maintains an eye for detail whilst staying abreast of evolving technology in an often fast-paced environment.

Iain Watson

Chief Controls Officer

An experienced COO, CAO, Head of Operations and Enterprise Program Manager. lain has held executive and management positions leading strategic activities and coordinating critical issues in financial institutions based around the world including NCB Capital, Lehman Brothers, CIBC and Goldman Sachs. lain is a Fellow of The Chartered Institute for Securities & Investment.

Steve Martin

Relationship Manager

Steve brings to the team a thorough understanding of retail banking garnered through 20 years working at Barclays Bank in the City of London. Having undertaken several leadership roles for Barclays Steve moved into relationship banking where he found a natural ability to deliver outstanding service on a human level. Steve holds a Certificate in Retail and Commercial Banking and is CeMAP qualified.

Dimitri Masselos

Relationship Manager

Dimitri has held executive management and senior regulated roles in the US, UK, Luxembourg as a private banker, commercial lender, bank city president in US, founder of full scope AIFM in UK and hedge fund in Luxembourg. He has worked at Goldman Sachs, Morgan Stanley, Merrill Lynch, Wachovia Bank, Clariden Leu, and Shard Capital. He was educated in the UK and US. Specialist in family offices. Active philanthropist.

Glenn Palmer

Client Operations Director

Glenn has spent over 20 years in the wealth management and trading sector servicing the requirements of high net worth clients. His career spans periods at institutions such as Barclays Wealth, Morgan Stanley Wealth Management, Lehman Brothers, Oppenheimer and Canadian Imperial Bank of Commerce. Glenn is FCA CF30 registered, CISI PCIAM Level 6 qualified and is also FINRA registered in the United States.

Yang Yu

Financial Controller

Yang is a technically strong and commercial minded professional accountant with great experience in accounting, financial and regulatory reporting, financial control, auditing and taxation. He is member of both ACCA and ICAEW, he is also a Chartered Tax Adviser and a member of the Chartered Institute of Taxation. Most recently, he was associate director in Finance and Accounting of the London branch of a Swiss private bank.


Suzanne Molloy

Marketing & Community Manager

Suzanne brings over 16 years of marketing management, digital marketing, loyalty and partnerships experience across a variety of sectors including financial and education both client-side and agency. Suzanne has experience of designing strategies to generate leads in multi-million pound companies such as GL Assessment, Global University Systems and the Collinson Group. She has a long track record of delivering SMART goals, executing integrated digital marketing campaigns as well as broadcast media and print campaigns to drive high response rates.

Linda Darnton

Relationship Manager Analyst

Linda is a highly experienced Financial Services Administrator. Having worked in various roles within the wealth management and banking sectors for over twelve years, including with the first bank in the world to offer crypto products to clients, she has a passion for client satisfaction and a strong focus on relationship building and regulatory requirements. She holds a Level 4 IAD qualification.

Non Executive Directors and Advisors

Matthias Rosenthal

Non-Executive Director

30 years of experience in international Finance & Controlling. Prior to working at IOV Labs, Matthias managed the finance area of LATAM operations for OSRAM (a German multinational lighting industry) implementing the best practices for cost efficiency and process improvements. His extensive knowledge includes accounting. controlling, financing, bank relationships, and compliance. He holds a Master of Economics and Political Sciences degree from the Universities of Heidelberg and Cologne (Germany).

June Aitken


June has been an MD at UBS Investment Bank and Head of Strategy for HSBC Global Banking and Markets. She brings current and extensive knowledge of markets (particularly global macro, EM and Asian), institutional and intermediary investor marketing, the investment process including ESG integration, and an understanding of risks, regulatory and governance frameworks required to support a successful and regulatorily compliant business.