Our Team

Equity Capital Markets and Corporate Advisory

Sebastian Jurd - Founder and Managing Director

Sebastian Jurd

Founder and Managing Director

Sebastian has extensive ECM, DCM, advisory, and stockbroking experience. He worked at BBY and PAC Partners before founding GBA. He also co-founded private credit businesses. Sebastian holds a Bachelor of Agricultural Economics (Hons) (Syd), Master of Applied Finance (Kaplan), a Certificate in Business Excellence (Columbia), and is an AICD graduate.

David Wall - Executive Director

David Wall

Executive Director

David has more than 15 years' experience in ECM and corporate advisory. He previously was a Principal at Inyati Capital, CEO of 88 Energy, an energy analyst at Hartleys and Argonaut, and in strategy at Woodside Energy. David holds a Bachelor of Commerce (UWA) and is a Member of the AICD.

Flynn Huang - Executive Director

Flynn Huang

Executive Director

Flynn has extensive experience in ECM, specializing in identifying and executing cross-border M&A transactions and capital raisings with a focus on critical minerals. He brings a strong entrepreneurial drive, with a track record of delivering high-growth outcomes for ASX-listed companies. Flynn is well-versed in global equities, supported by over 8 years of experience in the small-mid cap sector, and has previously founded and operated D2C/D2B companies

Ryan Gale - Executive Director

Ryan Gale

Executive Director

Ryan specialises in equity capital markets and corporate advisory. Since 2009, he has been active in Latin American resource deals from early-stage to IPO to expansion capital. Ryan previously was an adviser at PAC Partners and AMP Capital. He holds a Bachelor of Business (Notre Dame) and a Diploma of Financial Services (Kaplan).

Martin Nguyen - Associate Director

Martin Nguyen

Associate Director

Martin advises clients in ECM, DCM, and M&A transactions. His main focus is on critical minerals and gold in Australia and offshore. Martin also contributes to institutional sales. He previously worked at St George Bank. Martin holds a Bachelor of Economics and Bachelor of Applied Finance (Macquarie).

Ronak Nand - Associate Director

Ronak Nand

Associate Director

Ronak has raised capital for companies in mining, FMCG, health, technology, and biotechnology. He is experienced in funding pre-IPO, ASX-listed, and convertible notes. Ronak also has a high-net-worth client base. He holds a Bachelor of Engineering (Hons) and a Bachelor of Commerce (Syd).

Debt Capital Markets, M&A, and Corporate Advisory

James Notaras - Executive Director

James Notaras

Executive Director

James is an M&A specialist bringing over 20 years of investment banking experience gained from leading global financial institutions including Barclays (Hong Kong), Standard Chartered, Rothschild & Co and most recently, Indian Ocean Capital. James has extensive experience advising on and executing capital markets transactions across the Metals & Mining sector. James holds a Bachelor of Commerce in Accounting and Finance from the University of Sydney and is Licensed for Securities and Futures Intermediaries by the Hong Kong Securities Institute.

Tim Ryall - Associate Director

Tim Ryall

Associate Director

Tim focuses on resources project finance, M&A and ECM. This includes origination, structuring, due diligence, and execution. Tim previously held senior analytical roles at Arc Infrastructure, Vanadium Resources, and Euclase and was an associate at Grant Thornton. Tim holds a Bachelor of Commerce (UWA) and is a Chartered Accountant.

Sales Trading

Brandon Loo - Executive Director

Brandon Loo

Executive Director

Brandon has been with GBA since the company started. He was previously at PAC Partners. Brandon leads the sales and trading function for execution, administration, and general advice. He is also active in driving internal and external ECM deals. Brandon holds a Bachelor of Business (UTS) and is RG146 compliant.

Carsten Huebner - Executive Director

Carsten Huebner

Executive Director

Carsten has more than 30 years' experience in ECM and stockbroking. He has advised companies, institutions, and high net worth individuals in Australia and Europe. Carsten has held senior advisory roles at Shaw and Partners, Ord Minnett, and BBY. He holds a Bachelor of Applied Science (CSU) and Diploma in Financial Markets (SIA).

Brad Seward - Executive Director

Brad Seward

Executive Director

Brad is an institutional salesperson. He has a strong background in small-caps, mining, capital markets, and dual-listed equities. Brad previously held senior roles at Patriot Battery Minerals, Macquarie Capital, Euroz Hartleys, and Patersons. He holds a Bachelor of Science (Actuarial and Applied Statistics) (Curtain) and is RG146 compliant.

James Gore - Executive Director

James Gore

Executive Director

James Gore is a senior institutional salesperson with 28 years of experience in Australasian equity markets. He has extensive expertise across small-cap equities, mining, ECM, and hedge fund sales. Most recently, he served as Head of Sales and Trading at Foster Stockbroking. Prior to this, James spent seven years as Head of Hedge Fund Sales and Trading at Credit Suisse and previously held senior roles at Deutsche Bank and UBS across Australia and New Zealand. He holds bachelor's degrees in law and commerce from the University of Auckland.

Anthony Thompson - Senior Client Adviser

Anthony Thompson

Senior Client Adviser

Anthony advises high net worth individuals on listed and unlisted investment opportunities. He also raises capital for ASX-listed companies. Anthony previously worked for Novus Capital, Andara Asset Management, and fitness businesses he founded. Anthony holds a Diploma of Share Trading and Investments and is RG146 compliant.

Jimmy Jang - Senior Client Adviser

Jimmy Jang

Senior Client Adviser

Jimmy provides execution, portfolio construction, and advice for high-net-worth and sophisticated investors. He has been an adviser for four years. Jimmy also worked as a construction and project lawyer and a paralegal in banking and finance law. He holds a Bachelor of Laws (Hons) and Bachelor of Business (QUT).

Brennan Simpson - Equity Sales

Brennan Simpson

Equity Sales

Brennan brings over 25 years of experience across sales, trading, and execution, with deep expertise in equities, options, and futures. He was previously a Director at Deutsche Bank and has held senior roles at Macquarie Bank, Morgan Stanley, and Merrill Lynch. Brennan is RG146 compliant and holds ADA Level 1 and Level 2 qualifications.

John Tannous - Client Adviser

John Tannous

Client Adviser

John specialises in execution, portfolio construction and strategic advice for high-net-worth and sophisticated investors across equities and capital markets. He brings experience from Macquarie Group and Commonwealth Bank, with a strong focus on client relationships and financial strategy. Holding a Bachelor of Economics and RG146 accreditation, John applies a client-first approach to identify high-conviction opportunities and navigate markets with discipline.

Michael Tsintominas - Client Adviser

Michael Tsintominas

Client Adviser

Michael provides execution, portfolio construction, and investment advice to high-net-worth and sophisticated investors, supporting clients with tailored strategies across market opportunities. He brings experience working with institutional clients at CBRE, along with exposure to private credit, offering a well-rounded perspective across asset classes. Michael holds a Bachelor of Commerce and Bachelor of Laws from Macquarie University.

Cedric Koh - Sales Trader

Cedric Koh

Sales Trader

Cedric supports GBA clients with trade execution and portfolio management. He is adept at options pricing and building execution algorithms. Cedric is RG146 compliant and holds a Bachelor of Medical Science (Honours) (UTS), a Cert. IV in Information Technology, and is completing a Master of Mathematics and Quantitative Finance at UTS.

Ryan Liu - Sales Trader

Ryan Liu

Sales Trader

Ryan supports GBA clients with trade execution and portfolio management. He previously worked at TMGM as an investment operation analyst and as a financial analyst at Phoneplanet Smartphone. Ryan qualified as a pilot. He holds a Bachelor of Aviation (Flight) (Uni.SA).

Research

Dr Trent Allen - Research Director

Dr Trent Allen

Research Director

Trent has written metals and mining research and advised companies since 2007. He has been a researcher with Bell Potter, Blue Ocean, Citi and CLSA. Trent also worked as a geologist for Newcrest Mining, a journalist with Fairfax Media, and a lecturer at Sydney University. He holds a Bachelor of Science (Hons) and a PhD in Geology (Sydney).

Brad Watson - Research Director

Brad Watson

Research Director

Brad provides research, advice, and ECM in mining and resources. He was a resources analyst at Bell Potter for 4 years. Brad held senior engineering roles at AMC Consultants and Resolute Mining, specializing in underground mine design, feasibility studies, and project management. He holds a Bachelor of Engineering (Curtin) and an MBA (UWA).

Jayesh Nauriyal - Analyst

Jayesh Nauriyal

Analyst

Jayesh performs research analysis across industries. He previously worked as an equities analyst at ASR Wealth, an associate adviser at Peloton Capital, and built an online marketplace app. Jayesh holds a Bachelor of Applied Finance (Macquarie).

Joe Hansen - Research Analyst

Joe Hansen

Research Analyst

Joe is a mining research analyst with prior experience in mining ECM at Ord Minnett and Shaw and Partners. He holds a Bachelor of Commerce from UNSW and a Graduate Diploma of Chartered Accounting (CAANZ) and is currently completing a Graduate Certificate in Mineral Exploration Geoscience at Curtin University.

Finance

Tal Erkes - Executive Director

Tal Erkes

Executive Director

Tal leads GBA’s group finance and operations, covering accounting, treasury and infrastructure and oversees the full lifecycle of debt transactions. He holds Bachelors of Applied Finance and Commerce (Maqu), RG146 qualification, and completed programs at the Corporate Finance Institute.

Pamela Casino - Senior Management Accountant

Pamela Casino

Senior Management Accountant

Pamela supports GBA’s finance and accounting functions, specialising in financial reporting and month-end and year-end processes. She has experience across private credit, stockbroking, education, and visa services, and holds a Bachelor of Business (Accounting) from King’s Own Institute and a Bachelor of Business Administration (Financial Management) from San Beda University.

Evelyn Madayag - Accountant

Evelyn Madayag

Accountant

Evelyn has more than 5 years' experience as an accounting specialist. She is detail-oriented and client-focused. Evelyn has worked in diverse industries. She holds a Bachelor of Science (Accounting Technology) (University of the East) and a Bachelor of Science (Accounting) (University of Santo Tomas).

Anna Aldave - Financial Administrator

Anna Aldave

Financial Administrator

Anna has more than 5 years' experience in accounting. She is detail-oriented and client-focused. Anna has worked in accounts, payroll, and audit. She holds a Bachelor of Science (Accountancy) (University of Southern Philippines) and a Bachelor of Science (Management Accounting) (University of San Jose Recoletos).

Leah Jane Alon - Financial Administrator

Leah Jane Alon

Financial Administrator

Leah is a CPA in the Philippines with over 5 years of experience in accounting, bookkeeping, and financial operations. Her career reflects a solid foundation in both operational and strategic aspects of finance, with a proven ability to support organizational efficiency and compliance. Leah holds a Bachelor of Science in Accounting Technology from the University of San Carlos and a Bachelor of Science in Accountancy from the University of Southern Philippines Foundation.

Advisory Board

Stephen Weir - Advisory Board Chairman

Stephen Weir

Advisory Board Chairman

Stephen has 30 years' experience in ECM and corporate finance. He was a Managing Director at RFC Ambrian, an executive at Bankers Trust, CEO of Magnetite Mines, is a non-executive director of EQ Resources, Harena Resources, and Victory Minerals. Stephen holds a Bachelor of Engineering (Hons) (Melb), Grad Diploma in Applied Finance (FINSIA), and is a Member of the AICD.

Luke Heath - Advisory Board Member

Luke Heath

Advisory Board Member

Luke was an investment banker and fund manager with Schroders and Societe Generale for 10 years. He has owned executive search and management consulting businesses for 20 years focused on banking, wealth, and asset management. Luke holds a Bachelor of Arts (Melb), Master of HRM and Coaching (Syd), and is a Fellow of the AICD.

Davide Bosio - Advisory Board Member

Davide Bosio

Advisory Board Member

Davide served as State Manager WA and Director of Corporate Finance at Shaw and Partners. He was previously Managing Director of the stockbroker DJ Carmichael. David is an independent director of Black Cat and Yojee. He holds a Bachelor of Commerce (Curtain), a Grad. Diploma in Applied Finance (FINSIA), and is a Graduate of the AICD.

Join Our Team

We're always looking for exceptional talent. If you're passionate about finance and investments, we'd love to hear from you.

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