Sestini & Co a specialist in tax consultancy for expatriates and high net worth individuals. 

Founded in February 2013, Sestini & Co joined as a one Partner business with employees based over offices in Paulton, Bristol and Marylebone, London. Amongst their offering is a niche in advising US citizens living in the UK, or an ‘accidental American’ needing to file US tax returns. 

In February 2025, a deal transacted by Shaw Gibbs meant that an additional team of US tax advisers based in Norwich were added to the Sestini & Co team. 

Rachel Sestini, Partner of Sestini & Co commented:

“As the sole owner of Sestini & Co, I took some time to find a succession plan which ensured the practice continues to thrive while maintaining the client relationships we have built over the last 11 years.

I wanted the firm we chose to work with to offer services we do not provide but, we also wanted to enhance their service offering with the expertise we have developed and nurtured though our history. ”