Callum leads BHP’s International Tax and Large Corporates teams. He also advises on UK compliance and tax planning for a broad portfolio of SME and large corporate clients.
Before joining BHP, Callum held senior roles at global organisations including BlackRock and Siemens, and more recently worked at a financial consultancy firm, giving him a well-rounded perspective across both large-scale and specialist environments.
Drawing on this diverse experience, Callum focuses on helping clients navigate the complexities of cross-border taxation. He supports businesses looking to expand internationally, ensuring they understand and manage the tax and financial implications of operating overseas — all while staying compliant and strategically aligned during key growth phases.
