Our success is measured by yours.

About Us

At Accountants JSJ Ltd, we believe that great accounting is about more than just numbers – it’s about people, relationships, and helping our clients move forward with confidence.

Although our firm was established in February 2026, the experience behind it goes much further. We are a team of three – Jana, Slavka and Jan – who have each been working in accountancy for over a decade. Having built our own practices since 2015, we have supported a wide range of clients over the years. After working alongside each other and sharing the same values for a long time, we decided to bring our expertise together and create something stronger – a firm built on trust, experience and a shared vision.

Based in London on Old Street, and actively serving clients in Newbury and Swindon, we also provide fully online services, making it easy and convenient to work with us wherever you are in the UK.

We specialise in supporting small and medium-sized businesses, sole traders, limited companies, and individual clients such as landlords or a household employers. We understand the challenges our clients face because we’ve been working with businesses like yours for many years. That’s why we focus on clear communication, practical advice, and solutions that genuinely make a difference.

Our approach is simple: no two clients are the same. We take the time to understand your situation and tailor our services to suit your needs. Whether you’re just starting out, growing your business, or looking for reliable ongoing support, we are here to help you stay in control of your finances and make informed decisions.

We work with modern, trusted accounting software including QuickBooks, Sage, FreeAgent, Xero and Hammock, allowing us to deliver efficient, accurate and flexible services both locally and online.

At Accountants JSJ Ltd, we don’t see ourselves as just your accountants – we aim to be your long-term partners.

Meet the people behind Accountants JSJ Ltd. Our team combines years of experience with a shared commitment to providing clear, reliable, and personal accounting support to every client.