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Nikki Thirlwall

Director
Accounts
Nikki Thirlwall headshot

Director

Nikki is a Fellow of the Institute of Chartered Accountants in England and Wales (ICAEW), having qualified at the age of 22. She began her career at our Sidcup in 1996 as a school leaver and has progressed through the firm to her current role as Director. 

She leads the Accounts team at Sidcup, providing guidance and oversight across a wide range of client sectors. In addition to her core role, she has built broad expertise in audit, tax, and business operations, giving her a well-rounded understanding of client needs. 

Her long-standing contribution to the firm reflects a strong commitment to client service and professional development, making her a valued leader. 

Outside of work, she is a keen long-distance runner and has completed six marathons to date, including several overseas events—bringing the same dedication and endurance to her sport as she does to her professional life.