About Acumon

Acumon Chartered Accountants represents the evolution of a firm with deep roots in the UK accounting profession. Previously operating as Johnsons Chartered Accountants, we have rebranded to Acumon to reflect our growth, expanded capabilities, and commitment to delivering exceptional value to our clients.

Our journey has been marked by strategic growth and a commitment to excellence. From our origins as a respected West London practice, we have evolved into a leading UK firm with 90+ UK-based staff, serving clients ranging from individuals to large corporations across the United Kingdom.

The rebranding to Acumon represents more than just a name change—it reflects our vision for the future while honouring the strong foundation built over many years of dedicated service to our clients.

Our growth has been both organic and strategic. Over the past several years, we have significantly expanded our team from 16 staff members in 2019 to 90 professionals in 2025, while our turnover has grown from £1.2 million to almost £10 million in the same period.

This growth has been supported by strategic acquisitions that have enhanced our expertise and service offerings:

• 2021: Merger of Rutherfords with Johnsons Chartered Accountants, bringing additional expertise and expanding our client base
• 2025: Acquisition of Carter & Coley, further strengthening our capabilities and market presence

Each acquisition has been carefully integrated into Acumon, ensuring that clients benefit from expanded expertise while maintaining the high standards of service and personal attention that have defined our practice.