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About Us

Brearley & Co have been established for nearly 40 years with offices in Swinton, Mexborough, Dinnington and Barnsley. Our excellent client care, working closely with them to add value by providing proactive services as well as efficiently managing the compliance side of things, is something we pride ourselves in.We work as a team to ensure you have the best advice at all times and our network of connections enables us to be a business house for a wide range of services.

Brearley & Co Partners


Established in 1984 by the firm’s founder, Giles Brearley, Brearley & Co have grown from a single room to five buildings at their head office at Swinton, Mexborough and now have offices in Dinnington and Dodworth, Barnsley.

There are now five partners within the practice, each with their own specialist skills.

Continuing in Giles’ footsteps we pride ourselves in a strong involvement in the communities that we serve.

Great things in business are never done by one person. They’re done by a team of people. – Steve Jobs


Whilst we do all the usual compliance work well, we pride ourselves on the added value that we bring through our proactive advisory work.

Using our experience and wide network of trusted contacts we provide a comprehensive ‘one stop shop’ service to our clients, ensuring that they are looked after every step of the way.

Our team are expected to have an open, friendly and responsive approach, which our clients tell us that they do!


The company’s success owes much to our core approach, which has remained throughout;-

We recognise that the ingredients of a successful relationship are teamwork and close co-operation with our clients. This level of understanding is gained by listening to our clients, using this insight and our experience to deliver the best possible results for them.

A key objective of our team is to help you work on your business, not always in it – to stand back and take on the overall look at yourself and your business, something which is often difficult to do because of your closeness to it. Sometimes a fresh pair of eyes are needed to give an objective view and that is something that we excel at!

Our Vision

To add value to our client’s business by providing a comprehensive, high quality service. Our commitment is to provide a timely proactive service that business can rely on. Our team has integrity, accountability, honesty and work as a team at all times. We aim to be trusted and respected by all who we encounter.

How can we help you?

Brearley & Co Accountants are pleased to offer a free, no obligation, initial consultation with one of our experts who will be happy to discuss your business needs and how we can help you.


I would highly recommend Steven at Brearley & Co Accountants. On Steven’s advice we moved to Quickbooks and it was a brilliant decision. He has helped to streamline our accounting so that it now runs much more efficiently. Nothing is ever too much trouble, even if the question is a rather minor one. He is always at the end of the phone or email if any advice is needed and responds to queries very quickly. Steven delivers a friendly, personal and professional service and his knowledge of Quickbooks is second to none. I cannot recommend Steven highly enough; he is an excellent accountant!

PAC Groundworks

Emma Critchlow

Brearley & Co Accountants has been the perfect find for all of our accounting needs and business advice and support. They place customer satisfaction at the top of their agenda and backed up with all of the knowledge you could ever need to know for starting or running a business means any enquiry or concern is swiftly dealt with and the support offered is second to none. As a new business owner I couldn’t recommend Brearley and Co Accountants enough as the perfect support for your new venture or as an alternative with an extremely approachable and professional manner.

Elite Highways

Matt Lindsay - Director

Brearley Accountants have provided Silver Healthcare Ltd with Accounting Services for around 20 years, as well as a trusted advisor, they have provided sound professional advice on numerous occasions. The team headed by Mark Smallman are very proactive and professional, special attention has always been provided regarding general accounting and tax requirements enabling me and the team to concentrate on the running of the business. Top quality accounting with a friendly personal approach.

Silver Healthcare

Roy Young

Yates Drywall have worked with Brearleys since we began trading in 2014. We have found them to be professional and proficient, whilst friendly and helpful. Brearleys have helped us to grow our business and provide us with reassurance that we are complying with regulations. If we have any queries they always come back to us and proactively support us in ensuring our business runs smoothly. I would have no hesitation in recommending Brearleys to others.

Yates Drywall

Helen Yates

Taxation and accounting requirements can be somewhat of a minefield when it comes to running your own business. It is such a relief to know I have Brearley & Co in my corner, taking care of all of my company and personal accounting and taxation affairs, leaving me with much needed time to concentrate on running my business. They always provide an efficient, professional service delivered in an easy to understand and friendly manner.

CBW Professional Services Ltd

Amy Legg