About Us

We know a little of what it is like to sit in your chair. The whole team has real business experience through working in industry as business directors or in key management roles.

This unique perspective from “both sides of the table” allows us to combine our experience and passion for data insight with your business knowledge to deliver outcomes that are affordable, relevant, and actionable.


Most importantly we bring fun, enthusiasm, and professionalism to helping businesses tell their data story.

Meet our Senior Team

Graham Dotchin (FCA)

Associate Partner
Adventurer and Head Data Geek

Graham (re)joined MHA Tait Walker in 2016 having previously worked in Corporate Finance and in Commercial and Finance Director roles in Industry. A qualified ACA accountant, Graham has experienced first-hand the challenges and opportunities that businesses face, from both working in a professional environment and as part of a business leadership team.​

He is passionate about working with business owners, to combine their deep knowledge of the business with the right data insight to help them deliver their goals and create a sustainable business strategy.

When not working, learning, or driving the Dad Taxi, Graham can be found in the outdoors surfing, cycling, running or generally doing anything that involves adventure.

Callum McLaren

Data Insight Senior
Head of Enthusiasm

Callum joined MHA Tait Walker in 2019. Prior to this he worked at Pacifica Group where he transformed analytical insights into tangible value. He worked across the business to provide financial and operational reports to management teams and the board as well as product performance insight to large corporate suppliers.

Not one to sit still, during the Covid pandemic Callum studied and passed all levels of CIMA in 9 months whilst still working full time – not bad considering the average time for CIMA students is 48 months!

When not working or studying, Callum spends time with his son, going to the gym, trying new experiences, and socialising.

Dan Walker (MMathStat)

Data Insight Manager
Yorkshireman and Data Scientist

Dan joined MHA Tait Walker in 2021. Prior to this Dan helped establish the Data Science function within Engie UK, giving him first hand experience of how big data analytics and machine learning is used in large corporate environments and an understanding into how they can benefit SMEs.

A MMathStat graduate, Dan brings many years of Data Science experience to the team, adding value to client data with deep statistical knowledge and a multitude of programming languages for dealing with large datasets.

Dan maintains strong links with the local Universities and the National Innovation Centre for Data, supporting students and ensuring our techniques remain at the forefront of the industry.

When not working, Dan feels the pull of Yorkshire, returning home to see family and play for the local sports teams, specifically cricket, and football.