Meet Our Leadership Team

Our leadership team combines deep expertise in international tax with a client-focused approach, ensuring seamless compliance and strategic tax solutions for individuals and businesses navigating multi-jurisdictional obligations.

Alistair Bambridge, Founding Partner

Founding partner and head of international tax at Bambridge Accountants, Alistair leads the firm’s global tax strategy and advisory services. A recognized authority in US and UK expat taxation, high-net-worth tax planning, and multi-jurisdiction compliance, Alistair has built Bambridge Accountants into a trusted firm for international professionals, businesses, and investors. His expertise spans cross-border tax structuring, IRS and HMRC compliance, and tax treaty optimization, ensuring clients receive strategic, forward-thinking solutions for their global tax obligations

Alistair built Bambridge Accountants to be more than just a tax firm—his priority is making complex tax matters clear, accessible, and stress-free for individuals and businesses worldwide.

Callie Marles, Partner

Partner and head of US tax at Bambridge Accountants, Callie brings over a decade of expertise in US expat taxation, IRS compliance, and international tax strategy. As a leading authority in cross-border taxation, she specializes in guiding US expats, entrepreneurs, and businesses through complex US tax obligations. A certified Enrolled Agent, Callie is known for her strategic approach to tax planning, ensuring clients remain compliant while optimizing their global tax position.

Callie leads with expertise and approachability, ensuring every client—from entrepreneurs to high-net-worth individuals—feels supported, informed, and confident in their US tax obligations.

Anna Heery, Partner

Partner and head of growth at Bambridge Accountants, overseeing the strategic direction and day-to-day operations of the firm. She leads marketing, website development, client management, and operational efficiency, ensuring a seamless experience for clients worldwide. With a focus on client satisfaction and business expansion, Anna plays a key role in driving the firm’s continued success in international tax services.

With a strong focus on client satisfaction and business innovation, Anna ensures that every aspect of the firm—from service delivery to client engagement—is designed to provide a seamless, high-quality experience.

Trusted by Clients And Businesses Worldwide

Trusted by clients and businesses worldwide, we have built a reputation for delivering clear, expert international tax advice. From expats and entrepreneurs to high-net-worth individuals and global companies, our tailored approach ensures compliance and peace of mind across multiple jurisdictions. Our long-standing client relationships, industry recognition, and proven success in cross-border taxation reflect our commitment to excellence.

Award-winning Expat Accountants

We take pride in our commitment to remaining at the forefront of US and UK expat taxation, ensuring our clients receive the most up-to-date, expert guidance.

Spears 500 for High next worth - Highway sunset in america

Spears 500 for High Net Worth and Expatriate Tax

Filing with the HMRC, IRS and other tax authorities, ensuring compliance and efficiency

FT500 Listed Company in Europe and The Americas

Proudly listed as an FT 500 Listed Company in Europe and the Americas, we are honored to be acknowledged by the Financial Times as one of the fastest-growing and most promising companies.

Motel image for being voted as best US expat firm

Best US Expat Tax Firm

Honored as the Best US Expat Tax Firm, we are proud to be trusted by expatriates worldwide for expert, tailored tax solutions and seamless cross-border compliance.

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The History of Bambridge

We are incredibly proud of our journey—from a small tax firm in the heart of Covent Garden to expanding our team and offices, now also based in New York, serving clients across the globe

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