Our Team

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 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 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 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 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 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).

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.

Adear brings a strong background across capital markets, market data technology and global commerce. He joins us from Anna, an AI platform analysing ASX filings in real time, where he led growth and built relationships across institutional funds, brokers and the wider ASX small and mid-cap ecosystem. His earlier career includes managing commercial portfolios at Amazon and Nestlé, giving him blue-chip commercial training and a data-driven approach to markets. His focus at GBA is connecting wholesale investors, family offices and corporate clients with genuine deal flow and high-conviction opportunities across the small to mid-cap landscape. Adear's market relationships, analytical mindset and commitment to client outcomes make him a valuable addition to our team.

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 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 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 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 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 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 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 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.

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).

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 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.

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).

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.

Cedric uses data science to support the core of the business, building the models, reporting, and analytics behind key decisions across the firm. His work covers business development, business operations, and the systems that keep the investment process measurable and scalable. Drawing on his background in medical science, Cedric also supports opportunities in the biotech and life sciences space, including business development and transaction analysis. Cedric is a Certified Investment Management Analyst (CIMA®) and is RG146 compliant. He holds a Bachelor of Medical Science (Honours) (UTS) and a Cert. IV in Information Technology, and is completing a Master of Mathematics and Quantitative Finance at UTS.

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 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 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 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 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.

Erlyn has over 15 years of experience across accounting support, retail banking, quality assurance and client administration. She has supported accounting and advisory firms and held multiple roles with Citi across Australian and US retail banking. She brings strong attention to detail, professionalism and a client-focused approach to regulated financial services environments.

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 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), is a Fellow of the AICD, and is completing Columbia University’s CIO program.

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.

Arthur served as Australia's Ambassador to the United States (2020 – 23), Commonwealth Senator (2011 – 19), and Assistant Treasurer and Minister for Industry, Innovation and Science. He is the Chairman of Hypersonix Launch Systems and Sydney University's United States Studies Centre. Arthur previously worked as a Director at Goldman Sachs JB Were and Managing Director at NAB. He holds a Bachelor of Commerce (Hons) (Newcastle) and Honorary Doctor of Business (Sydney).

David has more than 20 years' experience in financial markets. He held leadership roles at Deutsche Bank, ED&F Man Capital Markets, and Marex Capital. David has strong knowledge of clearing, execution, and prime brokerage sales and operations. He also has considerable knowledge of risk and compliance. David holds a Bachelor of Arts from Canberra University.